net.openhft.lang.io

Class WrappedBytes<B extends Bytes>

java.lang.Object

net.openhft.lang.io.WrappedBytes<B>

All Implemented Interfaces:

DataInput, DataOutput, ObjectInput, ObjectOutput, Appendable, AutoCloseable, CharSequence, RandomAccess, Bytes, BytesCommon, BytesStore, ByteStringAppender, ByteStringParser, RandomDataInput, RandomDataOutput, RandomDataUpdate, BytesMarshallable, ReferenceCounted

public abstract class WrappedBytes<B extends Bytes>
extends Object
implements Bytes

A super class for those which wrap bytes.

Field Summary

Fields

Modifier and Type	Field and Description
protected B	wrapped

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	WrappedBytes(B wrapped)

Method Summary

Methods

Modifier and Type	Method and Description
int	addAndGetInt(long offset, int delta) Atomically adds the given value to the current value.
double	addAtomicDouble(long offset, double d)
float	addAtomicFloat(long offset, float f)
int	addAtomicInt(long offset, int i)
long	addAtomicLong(long offset, long l)
byte	addByte(long offset, byte b)
double	addDouble(long offset, double d)
float	addFloat(long offset, float f)
int	addInt(long offset, int i)
long	addLong(long offset, long i)
long	address()
short	addShort(long offset, short s)
int	addUnsignedByte(long offset, int i)
long	addUnsignedInt(long offset, long i)
int	addUnsignedShort(long offset, int i)
void	alignPositionAddr(int alignment) Align the position address to a power of 2.
ByteStringAppender	append(boolean b) Writes "true" or "false".
ByteStringAppender	append(char c)
ByteStringAppender	append(CharSequence s)
ByteStringAppender	append(CharSequence s, int start, int end)
ByteStringAppender	append(double d)
ByteStringAppender	append(double d, int precision)
ByteStringAppender	append(Enum value)
ByteStringAppender	append(int i)
<E> ByteStringAppender	append(Iterable<E> list, CharSequence separator)
ByteStringAppender	append(long l)
ByteStringAppender	append(long l, int base)
ByteStringAppender	append(MutableDecimal md)
ByteStringAppender	appendDateMillis(long timeInMS)
ByteStringAppender	appendDateTimeMillis(long timeInMS)
ByteStringAppender	appendTimeMillis(long timeInMS)
CharSequence	asString() Dump the contents of Bytes as a CharSequence
void	asString(Appendable appendable) Dump the contents of this Bytes as text in the Appendable.
int	available()
void	busyLockInt(long offset) Lock which uses 4 bytes.
void	busyLockLong(long offset) Lock across processes
ByteOrder	byteOrder()
Bytes	bytes() Create a bytes whose content is the whole bytes store.
Bytes	bytes(long offset, long length) Slice a Bytes object with start address of address+ offset and capacity of length.
long	capacity()
char	charAt(int index)
void	checkEndOfBuffer()
Bytes	clear() Clears this buffer.
void	clearThreadAssociation() Needed if the buffer is created in one thread and used in another.
void	close() Finishes the excerpt entry if not finished()
boolean	compare(long offset, RandomDataInput input, long inputOffset, long len)
boolean	compareAndSwapDouble(long offset, double expected, double x) Perform a compare and set operation.
boolean	compareAndSwapInt(long offset, int expected, int x) Perform a compare and set operation.
boolean	compareAndSwapLong(long offset, long expected, long x) Perform a compare and set operation.
File	file()
void	finish() Mark the end of the message if writing and check we are at the end of the message if reading.
Bytes	flip() Flips this buffer.
void	flush() Check the end of the stream has not overflowed.
void	free()
int	getAndAdd(long offset, int delta) Atomically adds the given value to the current value.
InputStream	inputStream()
boolean	isFinished()
int	length()
long	limit()
Bytes	limit(long limit)
Bytes	load() Access every page to ensure those pages are in memory.
ObjectSerializer	objectSerializer()
OutputStream	outputStream()
Boolean	parseBoolean(StopCharTester tester) Return true or false, or null if it could not be detected as true or false.
MutableDecimal	parseDecimal(MutableDecimal decimal)
double	parseDouble()
<E extends Enum<E>> E	parseEnum(Class<E> eClass, StopCharTester tester)
long	parseLong()
long	parseLong(int base)
String	parseUTF(StopCharTester tester)
void	parseUTF(StringBuilder builder, StopCharTester tester) Populate a StringBuilder with the UTF encoded text until the end.
long	position()
Bytes	position(long position)
int	read() Reads a byte of data.
int	read(byte[] byteArray) Reads into an array of bytes.
int	read(byte[] byteArray, int off, int len) Reads into an array of bytes.
void	read(ByteBuffer bb) Copy bytes into a ByteBuffer to the minimum of the length remaining() in the ByteBuffer or the Excerpt.
void	read(ByteBuffer bb, int length) Copy bytes into a ByteBuffer to the minimum of the length in the ByteBuffer or the Excerpt.
boolean	readBoolean() Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.
boolean	readBoolean(long offset) Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.
byte	readByte() Reads and returns one input byte.
byte	readByte(long offset) Reads and returns one input byte.
char	readChar() Reads two input bytes and returns a char value.
char	readChar(long offset) Reads two input bytes and returns a char value.
double	readCompactDouble() Reads the first four bytes as readFloat().
int	readCompactInt() Reads two or six input bytes and returns an int value.
long	readCompactLong() Reads four or twelve input bytes and returns a long value.
short	readCompactShort() Reads one or three input bytes and returns a short value.
long	readCompactUnsignedInt() Reads two or six input bytes and returns an int value.
int	readCompactUnsignedShort() Reads one or three input bytes and returns a short value.
double	readDouble() Reads eight input bytes and returns a double value.
double	readDouble(long offset) Reads eight input bytes and returns a double value.
<E> E	readEnum(Class<E> eClass) Read a String with readUTFΔ which is converted to an enumerable type.
float	readFloat() Reads four input bytes and returns a float value.
float	readFloat(long offset) Reads four input bytes and returns a float value.
void	readFully(byte[] byteArray) Reads some bytes from an input stream and stores them into the buffer array b.
void	readFully(byte[] byteArray, int off, int len) Reads len bytes from an input stream.
void	readFully(char[] data)
void	readFully(char[] data, int off, int len)
void	readFully(long offset, byte[] byteArray, int off, int len)
<T> T	readInstance(Class<T> objClass, T obj) Read an instance of a class assuming objClass was provided when written.
int	readInt() Reads four input bytes and returns an int value.
int	readInt(long offset) Reads four input bytes and returns an int value.
int	readInt24() Reads three input bytes and returns a 24-bit int value.
int	readInt24(long offset) Reads three input bytes and returns a 24-bit int value.
long	readInt48() Reads six input bytes and returns a long value.
long	readInt48(long offset) Reads six input bytes and returns a long value.
String	readLine() Reads the next line of text from the input stream.
<E> void	readList(Collection<E> list, Class<E> eClass) Read a stop bit encoded length and populates this Collection after zeroOut()ing it.
long	readLong() Reads eight input bytes and returns a long value.
long	readLong(long offset) Reads eight input bytes and returns a long value.
<K,V> Map<K,V>	readMap(Map<K,V> map, Class<K> kClass, Class<V> vClass) Read a stop bit encoded length and populates this Map after zeroOut()ing it.
void	readMarshallable(Bytes in) read an object from bytes
Object	readObject() Read and return an object.
<T> T	readObject(Class<T> tClass) Read and return an object.
void	readObject(Object object, int start, int end) Read the object from start to end bytes
short	readShort() Reads two input bytes and returns a short value.
short	readShort(long offset) Reads two input bytes and returns a short value.
long	readStopBit() Reads between one and ten bytes with are stop encoded with support for negative numbers
int	readUnsignedByte() Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255.
int	readUnsignedByte(long offset) Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255.
int	readUnsignedByteOrThrow()
long	readUnsignedInt() Reads four input bytes and returns an int value.
long	readUnsignedInt(long offset) Reads four input bytes and returns an int value.
int	readUnsignedShort() Reads two input bytes and returns an int value in the range 0 through 65535.
int	readUnsignedShort(long offset) Reads two input bytes and returns an int value in the range 0 through 65535.
String	readUTF() Reads in a string that has been encoded using a modified UTF-8 format.
String	readUTFΔ() The same as readUTF() except the length is stop bit encoded.
String	readUTFΔ(long offset) The same as readUTFΔ() except an offset is given.
boolean	readUTFΔ(StringBuilder stringBuilder) The same as readUTFΔ() except the chars are copied to a truncated StringBuilder.
double	readVolatileDouble(long offset) This is the same as readDouble() except a read barrier is performed first.
float	readVolatileFloat(long offset) This is the same as readFloat() except a read barrier is performed first.
int	readVolatileInt() This is the same as readInt() except a read barrier is performed first.
int	readVolatileInt(long offset) This is the same as readInt() except a read barrier is performed first.
long	readVolatileLong() This is the same readLong() except a dread barrier is performed first
long	readVolatileLong(long offset) This is the same readLong() except a dread barrier is performed first
int	refCount()
boolean	release()
long	remaining()
void	reserve()
void	resetLockInt(long offset) Lock which uses 4 bytes.
void	resetLockLong(long offset) Lock which uses 8 bytes.
boolean	selfTerminating()
void	selfTerminating(boolean selfTerminate) If set to true, the end of the Bytes will be the end of any consuming String, double or long.
long	size()
long	skip(long n) Skips n bytes of input.
int	skipBytes(int n) Makes an attempt to skip over n bytes of data from the input stream, discarding the skipped bytes.
boolean	skipTo(StopCharTester tester) Wind from this positionAddr to the end of the field
Bytes	slice() Creates a new bytes whose content is a shared subsequence of this bytes' content.
Bytes	slice(long offset, long length) Creates a new bytes whose content is a shared subsequence of this bytes' content.
ByteBuffer	sliceAsByteBuffer(ByteBuffer toReuse) Returns a ByteBuffer whose content is a shared subsequence of this bytes' content.
boolean	startsWith(RandomDataInput keyBytes)
boolean	stepBackAndSkipTo(StopCharTester tester) Make sure we just read a stop character
CharSequence	subSequence(int start, int end)
int	threadIdForLockInt(long offset) Lock which uses 4 bytes.
long	threadIdForLockLong(long offset) Lock which uses 8 bytes.
String	toDebugString()
String	toDebugString(long limit)
void	toString(Appendable sb, long start, long position, long end) Write a portion of the Bytes to an Appendable for printing.
boolean	tryLockInt(long offset) Lock which uses 4 bytes.
boolean	tryLockLong(long offset) Lock across processes
boolean	tryLockNanosInt(long offset, long nanos) Lock which uses 4 bytes.
boolean	tryLockNanosLong(long offset, long nanos) Lock across processes
boolean	tryRWReadLock(long offset, long timeOutNS) Uses the 64-bit long at the offset as a non-reentrant read/write lock.
boolean	tryRWWriteLock(long offset, long timeOutNS) Uses the 64-bit long at the offset as a non-reentrant read/write lock.
void	unlockInt(long offset) Lock which uses 4 bytes.
void	unlockLong(long offset) Lock across processes
void	unlockRWReadLock(long offset) Uses the 64-bit long at the offset as a non-reentrant read/write lock.
void	unlockRWWriteLock(long offset) Uses the 64-bit long at the offset as a non-reentrant read/write lock.
void	write(byte[] byteArray) Writes to the output stream all the bytes in array bytes.
void	write(byte[] byteArray, int off, int len) Writes len bytes from array bytes, in order, to the output stream.
void	write(Byteable byteable) Copies the contents of a Byteable from the offset for maxSize bytes, moves the position of "this" RandomDataOutput by the maxSize
void	write(ByteBuffer bb) Copies the contents of a ByteBuffer from the position to the limit.
void	write(char[] data)
void	write(char[] data, int off, int len)
void	write(int b) Writes to the output stream the eight low-order bits of the argument b.
void	write(long offset, byte[] byteArray) Writes to the output stream all the bytes in array bytes.
void	write(long offset, byte[] byteArray, int off, int len)
void	write(long offset, Bytes bytes)
void	write(RandomDataInput in) Copies the contents of a RandomDataInput from the position to the limit.
void	write(RandomDataInput in, long position, long length) Copy from one Bytes to another, moves the position of "this" RandomDataOutput by the length.
void	writeBoolean(boolean v) Writes a boolean value to this output stream.
void	writeBoolean(long offset, boolean v) Writes a boolean value to this output stream.
void	writeByte(int v) Writes to the output stream the eight low- order bits of the argument v.
void	writeByte(long offset, int b) Writes to the output stream the eight low-order bits of the argument b.
void	writeBytes(String s) Writes a string to the output stream.
void	writeChar(int v) Writes a char value, which is comprised of two bytes, to the output stream.
void	writeChar(long offset, int v) Writes a char value, which is comprised of two bytes, to the output stream.
void	writeChars(CharSequence cs) Writes chars of the given CharSequence to the bytes, without encoding.
void	writeChars(String s) Writes every character in the string s, to the output stream, in order, two bytes per character.
void	writeCompactDouble(double v) Writes four or twelve bytes as follow;
void	writeCompactInt(int v) Writes two or six bytes as follows; Integer.MIN_VALUE => Short.MIN_VALUE, Integer.MAX_VALUE => Short.MAX_VALUE, Short.MIN_VALUE+2 to Short.MAX_VALUE-1 => writeShort(x), default => writeShort(Short.MIN_VALUE+1; writeInt(x)
void	writeCompactLong(long v) Writes four or twelve bytes as follows Long.MIN_VALUE => Integer.MIN_VALUE, Long.MAX_VALUE => Integer.MAX_VALUE, Integer.MIN_VALUE+2 to Integer.MAX_VALUE-1 => writeInt(x), default => writeInt(Integer.MIN_VALUE+1; writeLong(x)
void	writeCompactShort(int v) Writes one or three bytes as follows; Short.MIN_VALUE => Byte.MIN_VALUE, Short.MAX_VALUE => Byte.MAX_VALUE, Short.MIN_VALUE+2 to Short.MAX_VALUE-1 => writeByte(x), default => writeByte(Byte.MIN_VALUE+1; writeShort(x)
void	writeCompactUnsignedInt(long v) Writes two or six bytes as follows; 0 to (1 << 16) - 2 => writeInt(x), otherwise writeShort(-1); writeInt(x)
void	writeCompactUnsignedShort(int v) Writes one or three bytes as follows; 0 to 254 => writeByte(x); otherwise writeByte(255); writeByteShort(x);
void	writeDouble(double v) Writes a double value, which is comprised of eight bytes, to the output stream.
void	writeDouble(long offset, double v) Writes a double value, which is comprised of eight bytes, to the output stream.
<E> void	writeEnum(E e) Write the object in a form which can be uniquely recreated by readEnum.
void	writeFloat(float v) Writes a float value, which is comprised of four bytes, to the output stream.
void	writeFloat(long offset, float v) Writes a float value, which is comprised of four bytes, to the output stream.
<OBJ> void	writeInstance(Class<OBJ> objClass, OBJ obj) Write an object with the assumption that the objClass will be provided when the class is read.
void	writeInt(int v) Writes an int value, which is comprised of four bytes, to the output stream.
void	writeInt(long offset, int v) Writes an int value, which is comprised of four bytes, to the output stream.
void	writeInt24(int v) Writes an int value, which is comprised of three bytes, to the output stream.
void	writeInt24(long offset, int v) Writes an int value, which is comprised of three bytes, to the output stream.
void	writeInt48(long v) Writes a long value, which is comprised of eight bytes, to the output stream.
void	writeInt48(long offset, long v) Writes a long value, which is comprised of eight bytes, to the output stream.
<E> void	writeList(Collection<E> list) Write an ordered collection of "enumerable objects" (See writeEnum).
void	writeLong(long v) Writes a long value, which is comprised of eight bytes, to the output stream.
void	writeLong(long offset, long v) Writes a long value, which is comprised of eight bytes, to the output stream.
<K,V> void	writeMap(Map<K,V> map) Write the keys and values of a Map of "enumerable objects" (See writeEnum).
void	writeMarshallable(Bytes out) write an object to bytes
void	writeObject(Object object) Write an object as either an "enumerable object" or a Serializable/Externalizable object using Java Serialization.
void	writeObject(Object object, int start, int end) Copy data from an Object from bytes start to end.
void	writeOrderedDouble(long offset, double v) Same as writeDouble but include an ordered write barrier.
void	writeOrderedFloat(long offset, float v) Same as writeFloat but include an ordered write barrier.
void	writeOrderedInt(int v) Same as writeInt but include an ordered write barrier.
void	writeOrderedInt(long offset, int v) Same as writeInt but include an ordered write barrier.
void	writeOrderedLong(long v) Same as writeLong but include an ordered write barrier.
void	writeOrderedLong(long offset, long v) Same as writeLong but include an ordered write barrier.
void	writeShort(int v) Writes two bytes to the output stream to represent the value of the argument.
void	writeShort(long offset, int v) Writes two bytes to the output stream to represent the value of the argument.
void	writeStopBit(long n) Stop bit encoding numbers.
void	writeUnsignedByte(int v) Writes to the output stream the eight low- order bits of the argument v.
void	writeUnsignedByte(long offset, int v) Writes to the output stream the eight low- order bits of the argument v.
void	writeUnsignedInt(long v) Writes an int value, which is comprised of four bytes, to the output stream.
void	writeUnsignedInt(long offset, long v) Writes an int value, which is comprised of four bytes, to the output stream.
void	writeUnsignedShort(int v) Writes two bytes to the output stream to represent the value of the argument.
void	writeUnsignedShort(long offset, int v) Writes two bytes to the output stream to represent the value of the argument.
void	writeUTF(String s) Writes two bytes of length information to the output stream, followed by the modified UTF-8 representation of every character in the string s.
void	writeUTFΔ(CharSequence s) Write the same encoding as writeUTF with the following changes.
void	writeUTFΔ(long offset, int maxSize, CharSequence s) Write the same encoding as writeUTF with the following changes.
Bytes	zeroOut() fill the Bytes with zeros, and clear the position.
Bytes	zeroOut(long start, long end) fill the Bytes with zeros.
Bytes	zeroOut(long start, long end, boolean ifNotZero) fill the Bytes with zeros, and clear the position, avoiding touching pages unnecessarily

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.openhft.lang.io.RandomDataInput

read8bitText

Methods inherited from interface net.openhft.lang.io.RandomDataOutput

write8bitText

Methods inherited from interface java.lang.CharSequence

toString

Field Detail

wrapped

protected B extends Bytes wrapped

Constructor Detail

WrappedBytes

protected WrappedBytes(B wrapped)

Method Detail

clearThreadAssociation

public void clearThreadAssociation()

Description copied from interface: Bytes

Needed if the buffer is created in one thread and used in another.

Specified by:

clearThreadAssociation in interface Bytes

sliceAsByteBuffer

public ByteBuffer sliceAsByteBuffer(@Nullable
                           ByteBuffer toReuse)

Description copied from interface: BytesCommon

Returns a ByteBuffer whose content is a shared subsequence of this bytes' content.

The content of the returned ByteBuffer will start at this bytes' current position. Changes to this bytes' content will be visible in the returned ByteBuffer, and vice versa; this bytes' and the returned ByteBuffer's position and limit values will be independent.

The returned ByteBuffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this bytes.

If this bytes object is able to reuse to given toReuse ByteBuffer, it will be reused and returned back from this method, otherwise a new ByteBuffer instance is created and returned.

Specified by:

sliceAsByteBuffer in interface BytesCommon

Parameters:

toReuse - a ByteBuffer to reuse

Returns:

a ByteBuffer view of this Bytes

See Also:

BytesCommon.slice(), ByteBuffer.slice()

readMarshallable

public void readMarshallable(@NotNull
                    Bytes in)
                      throws IllegalStateException

Description copied from interface: BytesMarshallable

read an object from bytes

Specified by:

readMarshallable in interface BytesMarshallable

Parameters:

in - to read from

Throws:

IllegalStateException - if the object could not be read.

toDebugString

public String toDebugString(long limit)

Specified by:

toDebugString in interface BytesCommon

compare

public boolean compare(long offset,
              RandomDataInput input,
              long inputOffset,
              long len)

Specified by:

compare in interface RandomDataInput

readCompactLong

public long readCompactLong()

Description copied from interface: RandomDataInput

Reads four or twelve input bytes and returns a long value. Let a be the first int read with readInt(). This mapped as follows; Integer.MIN_VALUE => Long.MIN_VALUE, Integer.MAX_VALUE => Long.MAX_VALUE, Integer.MIN_VALUE+2 to Integer.MAX_VALUE-1 => same as short value, Integer.MIN_VALUE+1 => readLong().

This method is suitable for reading the bytes written by the writeCompactLong method of interface RandomDataOutput.

Specified by:

readCompactLong in interface RandomDataInput

Returns:

the 64-bit value read.

tryLockNanosInt

public boolean tryLockNanosInt(long offset,
                      long nanos)

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. It store the lower 24 bits of the Thread Id and the re-entrant count as 8 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 255 times you will get an ISE

Specified by:

tryLockNanosInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

nanos - to try to lock for

Returns:

did it lock or not.

writeMarshallable

public void writeMarshallable(@NotNull
                     Bytes out)

Description copied from interface: BytesMarshallable

write an object to bytes

Specified by:

writeMarshallable in interface BytesMarshallable

Parameters:

out - to write to

readInt24

public int readInt24()

Description copied from interface: RandomDataInput

Reads three input bytes and returns a 24-bit int value. Let a-c be the first through third bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 ((((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8))) >> 8
 

This method is suitable for reading bytes written by the writeInt24 method of interface RandomDataOutput.

Specified by:

readInt24 in interface RandomDataInput

Returns:

the int value read.

flush

public void flush()

Description copied from interface: RandomDataOutput

Check the end of the stream has not overflowed. Otherwise this doesn't do anything.

Specified by:

flush in interface ObjectOutput

Specified by:

flush in interface RandomDataOutput

writeDouble

public void writeDouble(long offset,
               double v)

Description copied from interface: RandomDataOutput

Writes a double value, which is comprised of eight bytes, to the output stream. It does this as if it first converts this double value to a long in exactly the manner of the Double.doubleToLongBits method and then writes the long value in exactly the manner of the writeLong method. The bytes written by this method may be read by the readDouble method of interface DataInput, which will then return a double equal to v.

Specified by:

writeDouble in interface RandomDataOutput

Parameters:

offset - to write to

v - the double value to be written.

limit

public long limit()

Specified by:

limit in interface BytesCommon

Returns:

the current limit which must be >= capacity()

appendTimeMillis

@NotNull
public ByteStringAppender appendTimeMillis(long timeInMS)

Specified by:

appendTimeMillis in interface ByteStringAppender

parseEnum

@Nullable
public <E extends Enum<E>> E parseEnum(@NotNull
                                       Class<E> eClass,
                                       @NotNull
                                       StopCharTester tester)
                         throws BufferUnderflowException

Specified by:

parseEnum in interface ByteStringParser

Throws:

BufferUnderflowException

refCount

public int refCount()

Specified by:

refCount in interface ReferenceCounted

writeShort

public void writeShort(long offset,
              int v)

Description copied from interface: RandomDataOutput

Writes two bytes to the output stream to represent the value of the argument. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
  

The bytes written by this method may be read by the readShort method of interface DataInput , which will then return a short equal to (short)v.

Specified by:

writeShort in interface RandomDataOutput

Parameters:

offset - to be written to

v - the short value to be written.

writeEnum

public <E> void writeEnum(@Nullable
                 E e)

Description copied from interface: RandomDataOutput

Write the object in a form which can be uniquely recreated by readEnum. This type of "enumerable objects" has the following constraints; 1) each object must have a one to one mapping with a toString() representation, 2) be immutable, 3) ideally appears more than once, 4) Must have a constructor which takes a single String or a valueOf(String) method.

Specified by:

writeEnum in interface RandomDataOutput

Type Parameters:

E - element class

Parameters:

e - to enumerate

append

@NotNull
public <E> ByteStringAppender append(@NotNull
                                    Iterable<E> list,
                                    @NotNull
                                    CharSequence separator)

Specified by:

append in interface ByteStringAppender

writeCompactUnsignedShort

public void writeCompactUnsignedShort(int v)

Description copied from interface: RandomDataOutput

Writes one or three bytes as follows; 0 to 254 => writeByte(x); otherwise writeByte(255); writeByteShort(x);

The bytes written by this method may be read by the readCompactUnsignedShort method of interface RandomDataInput , which will then return a short equal to v & 0xFFFF.

Specified by:

writeCompactUnsignedShort in interface RandomDataOutput

Parameters:

v - the unsigned short value to be written.

readVolatileLong

public long readVolatileLong()

Description copied from interface: RandomDataInput

This is the same readLong() except a dread barrier is performed first

Reads eight input bytes and returns a long value. Let a-h be the first through eighth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16) |
  ((long)(g & 0xff) <<  8) |
  ((long)(h & 0xff)))
 

This method is suitable for reading bytes written by the writeOrderedLong or writeVolatileLong method of interface RandomDataOutput.

Specified by:

readVolatileLong in interface RandomDataInput

Returns:

the long value read.

write

public void write(RandomDataInput in,
         long position,
         long length)

Description copied from interface: RandomDataOutput

Copy from one Bytes to another, moves the position of "this" RandomDataOutput by the length. The position of the RandomDataInput is not used or altered.

Specified by:

write in interface RandomDataOutput

Parameters:

in - to copy

position - to copy from

length - to copy

write

public void write(Byteable byteable)

Description copied from interface: RandomDataOutput

Copies the contents of a Byteable from the offset for maxSize bytes, moves the position of "this" RandomDataOutput by the maxSize

Specified by:

write in interface RandomDataOutput

Parameters:

byteable - to copy

writeOrderedInt

public void writeOrderedInt(int v)

Description copied from interface: RandomDataOutput

Same as writeInt but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than a volatile write which stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedInt in interface RandomDataOutput

Parameters:

v - value to write

readUTFΔ

public boolean readUTFΔ(@NotNull
               StringBuilder stringBuilder)

Description copied from interface: RandomDataInput

The same as readUTFΔ() except the chars are copied to a truncated StringBuilder.

Specified by:

readUTFΔ in interface RandomDataInput

Parameters:

stringBuilder - to copy chars to

Returns:

true if there was a String, or false if it was null

writeInt48

public void writeInt48(long offset,
              long v)

Description copied from interface: RandomDataOutput

Writes a long value, which is comprised of eight bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 40))
 (byte)(0xff & (v >> 32))
 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>  8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt48 method of interface RandomDataInput , which will then return a long equal to v & ((1L << 48) - 1).

Specified by:

writeInt48 in interface RandomDataOutput

Parameters:

offset - to be written to

v - the long value to be written.

readLong

public long readLong()

Description copied from interface: RandomDataInput

Reads eight input bytes and returns a long value. Let a-h be the first through eighth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16) |
  ((long)(g & 0xff) <<  8) |
  ((long)(h & 0xff)))
 

This method is suitable for reading bytes written by the writeLong method of interface DataOutput.

Specified by:

readLong in interface DataInput

Specified by:

readLong in interface RandomDataInput

Returns:

the long value read.

writeLong

public void writeLong(long v)

Description copied from interface: RandomDataOutput

Writes a long value, which is comprised of eight bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 56))
 (byte)(0xff & (v >> 48))
 (byte)(0xff & (v >> 40))
 (byte)(0xff & (v >> 32))
 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>  8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readLong method of interface DataInput , which will then return a long equal to v.

Specified by:

writeLong in interface DataOutput

Specified by:

writeLong in interface RandomDataOutput

Parameters:

v - the long value to be written.

appendDateTimeMillis

@NotNull
public ByteStringAppender appendDateTimeMillis(long timeInMS)

Specified by:

appendDateTimeMillis in interface ByteStringAppender

readEnum

@Nullable
public <E> E readEnum(@NotNull
                      Class<E> eClass)

Description copied from interface: RandomDataInput

Read a String with readUTFΔ which is converted to an enumerable type. i.e. where there is a one to one mapping between an object and it's toString().

This is suitable to read an object written using writeEnum() in the RandomDataOutput interface

Specified by:

readEnum in interface RandomDataInput

Type Parameters:

E - the enum class

Parameters:

eClass - to decode the String as

Returns:

the decoded value. null with be return if null was written.

write

public void write(RandomDataInput in)

Description copied from interface: RandomDataOutput

Copies the contents of a RandomDataInput from the position to the limit.

This method transfers the bytes remaining in the given source buffer into this buffer. If there are more bytes remaining in the source buffer than in this buffer, that is, if src.remaining() > remaining(), then no bytes are transferred and a BufferOverflowException is thrown.

Otherwise, this method copies n = src.remaining() bytes from the given buffer into this buffer, starting at each buffer's current position. The positions of both buffers are then incremented by n.

In other words, an invocation of this method of the form dst.write(src) has exactly the same effect as the loop

     while (src.hasRemaining())
         dst.writeByte(src.readByte()); 
  

Specified by:

write in interface RandomDataOutput

Parameters:

in - to copy

append

@NotNull
public ByteStringAppender append(double d)

Specified by:

append in interface ByteStringAppender

toDebugString

@NotNull
public String toDebugString()

Specified by:

toDebugString in interface BytesCommon

isFinished

public boolean isFinished()

Specified by:

isFinished in interface BytesCommon

Returns:

has finish been called.

writeCompactUnsignedInt

public void writeCompactUnsignedInt(long v)

Description copied from interface: RandomDataOutput

Writes two or six bytes as follows; 0 to (1 << 16) - 2 => writeInt(x), otherwise writeShort(-1); writeInt(x)

The bytes written by this method may be read by the readCompactUnsignedInt method of interface RandomDataInput , which will then return a int equal to v & 0xFFFFFFFF.

Specified by:

writeCompactUnsignedInt in interface RandomDataOutput

Parameters:

v - the short value to be written.

append

@NotNull
public ByteStringAppender append(double d,
                                int precision)

Specified by:

append in interface ByteStringAppender

readUnsignedByteOrThrow

public int readUnsignedByteOrThrow()
                            throws BufferUnderflowException

Specified by:

readUnsignedByteOrThrow in interface ByteStringParser

Returns:

the next unsigned byte or -1 if selfTerminating and the end is reached.

Throws:

BufferUnderflowException - if the end is reached and selfTerminating is false.

zeroOut

public Bytes zeroOut(long start,
            long end)

Description copied from interface: RandomDataOutput

fill the Bytes with zeros.

Specified by:

zeroOut in interface RandomDataOutput

Parameters:

start - first byte to zero out

end - the first byte after the last to zero out (exclusive bound)

Returns:

this

zeroOut

public Bytes zeroOut(long start,
            long end,
            boolean ifNotZero)

Description copied from interface: RandomDataOutput

fill the Bytes with zeros, and clear the position, avoiding touching pages unnecessarily

Specified by:

zeroOut in interface RandomDataOutput

Parameters:

start - first byte to zero out

end - the first byte after the last to zero out (exclusive bound)

ifNotZero - only set to zero after checking the value is not zero.

Returns:

this

writeShort

public void writeShort(int v)

Description copied from interface: RandomDataOutput

Writes two bytes to the output stream to represent the value of the argument. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
  

The bytes written by this method may be read by the readShort method of interface DataInput , which will then return a short equal to (short)v.

Specified by:

writeShort in interface DataOutput

Specified by:

writeShort in interface RandomDataOutput

Parameters:

v - the short value to be written.

addShort

public short addShort(long offset,
             short s)

Specified by:

addShort in interface RandomDataUpdate

writeUnsignedInt

public void writeUnsignedInt(long v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of four bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readUnsignedInt method of interface RandomDataInput , which will then return an long equal to v & 0xFFFFFFFF.

Specified by:

writeUnsignedInt in interface RandomDataOutput

Parameters:

v - the int value to be written.

free

public void free()

Specified by:

free in interface BytesStore

readUnsignedShort

public int readUnsignedShort()

Description copied from interface: RandomDataInput

Reads two input bytes and returns an int value in the range 0 through 65535. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

     (((a & 0xff) << 8) | (b & 0xff))
 

This method is suitable for reading the bytes written by the writeUnsignedShort method of interface DataOutput if the argument to writeUnsignedShort was intended to be a value in the range 0 through 65535.

Specified by:

readUnsignedShort in interface DataInput

Specified by:

readUnsignedShort in interface RandomDataInput

Returns:

the unsigned 16-bit value read.

writeStopBit

public void writeStopBit(long n)

Description copied from interface: RandomDataOutput

Stop bit encoding numbers. This will write the same number of bytes whether you used a byte, short or int.

Specified by:

writeStopBit in interface RandomDataOutput

Parameters:

n - the number to write

readObject

@Nullable
public <T> T readObject(Class<T> tClass)
             throws IllegalStateException

Description copied from interface: RandomDataInput

Read and return an object. The class that implements this interface defines where the object is "read" from.

Specified by:

readObject in interface RandomDataInput

Type Parameters:

T - the class of the object to read

Parameters:

tClass - the class of the object to read

Returns:

the object read from the stream

Throws:

IllegalStateException - the class of a serialized object cannot be found or any of the usual Input/Output related exceptions occur.

writeCompactInt

public void writeCompactInt(int v)

Description copied from interface: RandomDataOutput

Writes two or six bytes as follows; Integer.MIN_VALUE => Short.MIN_VALUE, Integer.MAX_VALUE => Short.MAX_VALUE, Short.MIN_VALUE+2 to Short.MAX_VALUE-1 => writeShort(x), default => writeShort(Short.MIN_VALUE+1; writeInt(x)

The bytes written by this method may be read by the readCompactInt method of interface RandomDataInput , which will then return a int equal to v.

Specified by:

writeCompactInt in interface RandomDataOutput

Parameters:

v - the int value to be written.

writeOrderedLong

public void writeOrderedLong(long v)

Description copied from interface: RandomDataOutput

Same as writeLong but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than a volatile write which stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedLong in interface RandomDataOutput

Parameters:

v - value to write

addByte

public byte addByte(long offset,
           byte b)

Specified by:

addByte in interface RandomDataUpdate

readVolatileInt

public int readVolatileInt()

Description copied from interface: RandomDataInput

This is the same as readInt() except a read barrier is performed first.

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff))
 

This method is suitable for reading bytes written by the writeOrderedInt or writeVolatileInt method of interface RandomDataOutput.

Specified by:

readVolatileInt in interface RandomDataInput

Returns:

the int value read.

close

public void close()

Description copied from interface: RandomDataInput

Finishes the excerpt entry if not finished()

Specified by:

close in interface ObjectInput

Specified by:

close in interface ObjectOutput

Specified by:

close in interface AutoCloseable

Specified by:

close in interface RandomDataInput

Specified by:

close in interface RandomDataOutput

read

public void read(@NotNull
        ByteBuffer bb)

Description copied from interface: RandomDataInput

Copy bytes into a ByteBuffer to the minimum of the length remaining() in the ByteBuffer or the Excerpt.

Specified by:

read in interface RandomDataInput

Parameters:

bb - to copy into

read

public void read(@NotNull
        ByteBuffer bb,
        int length)

Description copied from interface: RandomDataInput

Copy bytes into a ByteBuffer to the minimum of the length in the ByteBuffer or the Excerpt.

Specified by:

read in interface RandomDataInput

Parameters:

bb - to copy into

length - number of bytes to copy

append

@NotNull
public ByteStringAppender append(long l,
                                int base)

Specified by:

append in interface ByteStringAppender

skip

public long skip(long n)

Description copied from interface: RandomDataInput

Skips n bytes of input.

Specified by:

skip in interface ObjectInput

Specified by:

skip in interface RandomDataInput

Parameters:

n - the number of bytes to be skipped

Returns:

the actual number of bytes skipped.

selfTerminating

public boolean selfTerminating()

Specified by:

selfTerminating in interface ByteStringParser

Returns:

if this Bytes self terminates.

writeBytes

public void writeBytes(@NotNull
              String s)

Description copied from interface: RandomDataOutput

Writes a string to the output stream. For every character in the string s, taken in order, one byte is written to the output stream. If s is null, a NullPointerException is thrown.

If s.length is zero, then no bytes are written. Otherwise, the character s[0] is written first, then s[1], and so on; the last character written is s[s.length-1]. For each character, one byte is written, the low-order byte, in exactly the manner of the writeByte method . The high-order eight bits of each character in the string are ignored.

Specified by:

writeBytes in interface DataOutput

Specified by:

writeBytes in interface RandomDataOutput

Parameters:

s - the string of bytes to be written. Cannot be null.

size

public long size()

Specified by:

size in interface BytesStore

readCompactUnsignedShort

public int readCompactUnsignedShort()

Description copied from interface: RandomDataInput

Reads one or three input bytes and returns a short value. Let a be the first byte read. This mapped as follows; -1 => readUnsignedShort(), default => (a & 0xFF)

This method is suitable for reading the bytes written by the writeCompactUnsignedShort method of interface RandomDataOutput.

Specified by:

readCompactUnsignedShort in interface RandomDataInput

Returns:

the unsigned 16-bit value read.

append

@NotNull
public ByteStringAppender append(@NotNull
                                CharSequence s,
                                int start,
                                int end)

Specified by:

append in interface Appendable

Specified by:

append in interface ByteStringAppender

writeCompactLong

public void writeCompactLong(long v)

Description copied from interface: RandomDataOutput

Writes four or twelve bytes as follows Long.MIN_VALUE => Integer.MIN_VALUE, Long.MAX_VALUE => Integer.MAX_VALUE, Integer.MIN_VALUE+2 to Integer.MAX_VALUE-1 => writeInt(x), default => writeInt(Integer.MIN_VALUE+1; writeLong(x)

The bytes written by this method may be read by the readCompactLong method of interface RandomDataInput , which will then return a long equal to v.

Specified by:

writeCompactLong in interface RandomDataOutput

Parameters:

v - the long value to be written.

readCompactDouble

public double readCompactDouble()

Description copied from interface: RandomDataInput

Reads the first four bytes as readFloat(). If this is Float.NaN, the next eight bytes are read as readDouble()

Specified by:

readCompactDouble in interface RandomDataInput

Returns:

the double value read.

writeOrderedInt

public void writeOrderedInt(long offset,
                   int v)

Description copied from interface: RandomDataOutput

Same as writeInt but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than writeVolatileInt as the volatile write stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedInt in interface RandomDataOutput

Parameters:

offset - to write to

v - value to write

writeObject

public void writeObject(Object object,
               int start,
               int end)

Description copied from interface: RandomDataOutput

Copy data from an Object from bytes start to end.

Specified by:

writeObject in interface RandomDataOutput

Parameters:

object - to copy from

start - first byte inclusive

end - last byte exclusive.

asString

public CharSequence asString()

Description copied from interface: ByteStringParser

Dump the contents of Bytes as a CharSequence

Specified by:

asString in interface ByteStringParser

Returns:

the CharSequence for these Bytes.

readUTFΔ

@Nullable
public String readUTFΔ()

Description copied from interface: RandomDataInput

The same as readUTF() except the length is stop bit encoded. This saves one byte for strings shorter than 128 chars. null values are also supported

Specified by:

readUTFΔ in interface RandomDataInput

Returns:

a Unicode string or null if writeUTFΔ(null) was called

flip

public Bytes flip()

Description copied from interface: BytesCommon

Flips this buffer. The limit is set to the current position and then the position is set to zero. If the mark is defined then it is discarded.

After a sequence of channel-read or put operations, invoke this method to prepare for a sequence of channel-write or relative get operations. For example:

buf.put(magic);    // Prepend header
 in.read(buf);      // Read data into rest of buffer
 buf.flip();        // Flip buffer
 out.write(buf);    // Write header + data to channel
 

This method is often used in conjunction with the compact method when transferring data from one place to another.

Specified by:

flip in interface BytesCommon

Returns:

This buffer

addInt

public int addInt(long offset,
         int i)

Specified by:

addInt in interface RandomDataUpdate

readUnsignedInt

public long readUnsignedInt(long offset)

Description copied from interface: RandomDataInput

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 ((((long) a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d &
 0xff))
 

This method is suitable for reading bytes written by the writeUnsignedInt method of interface RandomDataOutput.

Specified by:

readUnsignedInt in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the unsigned int value read.

writeByte

public void writeByte(int v)

Description copied from interface: RandomDataOutput

Writes to the output stream the eight low- order bits of the argument v. The 24 high-order bits of v are ignored. (This means that writeByte does exactly the same thing as write for an integer argument.) The byte written by this method may be read by the readByte method of interface DataInput, which will then return a byte equal to (byte)v.

Specified by:

writeByte in interface DataOutput

Specified by:

writeByte in interface RandomDataOutput

Parameters:

v - the byte value to be written.

writeUnsignedInt

public void writeUnsignedInt(long offset,
                    long v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of four bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readUnsignedInt method of interface RandomDataInput , which will then return an long equal to v & 0xFFFFFFFF.

Specified by:

writeUnsignedInt in interface RandomDataOutput

Parameters:

offset - to be written to

v - the int value to be written.

writeInt

public void writeInt(int v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of four bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt method of interface DataInput , which will then return an int equal to v.

Specified by:

writeInt in interface DataOutput

Specified by:

writeInt in interface RandomDataOutput

Parameters:

v - the int value to be written.

readShort

public short readShort()

Description copied from interface: RandomDataInput

Reads two input bytes and returns a short value. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

(short)((a << 8) | (b & 0xff))
 

This method is suitable for reading the bytes written by the writeShort method of interface DataOutput.

Specified by:

readShort in interface DataInput

Specified by:

readShort in interface RandomDataInput

Returns:

the 16-bit value read.

writeUnsignedByte

public void writeUnsignedByte(long offset,
                     int v)

Description copied from interface: RandomDataOutput

Writes to the output stream the eight low- order bits of the argument v. The 24 high-order bits of v are ignored. (This means that writeByte does exactly the same thing as write for an integer argument.) The byte written by this method may be read by the readUnsignedByte method of interface DataInput, which will then return a byte equal to v & 0xFF.

Specified by:

writeUnsignedByte in interface RandomDataOutput

Parameters:

offset - to write byte

v - the unsigned byte value to be written.

asString

public void asString(Appendable appendable)

Description copied from interface: ByteStringParser

Dump the contents of this Bytes as text in the Appendable.

Specified by:

asString in interface ByteStringParser

Parameters:

appendable - to append to

readInt48

public long readInt48(long offset)

Description copied from interface: RandomDataInput

Reads six input bytes and returns a long value. Let a-f be the first through sixth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16)) >> 16
 

This method is suitable for reading bytes written by the writeInt48 method of interface RandomDataOutput.

Specified by:

readInt48 in interface RandomDataInput

Parameters:

offset - of the long to read

Returns:

the long value read.

unlockRWReadLock

public void unlockRWReadLock(long offset)
                      throws IllegalStateException

Description copied from interface: RandomDataUpdate

Uses the 64-bit long at the offset as a non-reentrant read/write lock. There can be up to 2^20-1 threads reading, or waiting to read on a lock.

Specified by:

unlockRWReadLock in interface RandomDataUpdate

Parameters:

offset - of the long monitor

Throws:

IllegalStateException - if the monitor is in an illegal state

readUTF

@NotNull
public String readUTF()

Description copied from interface: RandomDataInput

Reads in a string that has been encoded using a modified UTF-8 format. The general contract of readUTF is that it reads a representation of a Unicode character string encoded in modified UTF-8 format; this string of characters is then returned as a String.

First, two bytes are read and used to construct an unsigned 16-bit integer in exactly the manner of the readUnsignedShort method . This integer value is called the UTF length and specifies the number of additional bytes to be read. These bytes are then converted to characters by considering them in groups. The length of each group is computed from the value of the first byte of the group. The byte following a group, if any, is the first byte of the next group.

If the first byte of a group matches the bit pattern 0xxxxxxx (where x means "may be 0 or 1"), then the group consists of just that byte. The byte is zero-extended to form a character.

If the first byte of a group matches the bit pattern 110xxxxx, then the group consists of that byte a and a second byte b. If there is no byte b (because byte a was the last of the bytes to be read), or if byte b does not match the bit pattern 10xxxxxx, then a UTFDataFormatException is thrown. Otherwise, the group is converted to the character:

(char)(((a& 0x1F) << 6) | (b & 0x3F))
 

If the first byte of a group matches the bit pattern 1110xxxx, then the group consists of that byte a and two more bytes b and c. If there is no byte c (because byte a was one of the last two of the bytes to be read), or either byte b or byte c does not match the bit pattern 10xxxxxx, then a UTFDataFormatException is thrown. Otherwise, the group is converted to the character:

 (char)(((a & 0x0F) << 12) | ((b & 0x3F) << 6) | (c & 0x3F))
 

If the first byte of a group matches the pattern 1111xxxx or the pattern 10xxxxxx, then a UTFDataFormatException is thrown.

If end of file is encountered at any time during this entire process, then an EOFException is thrown.

After every group has been converted to a character by this process, the characters are gathered, in the same order in which their corresponding groups were read from the input stream, to form a String, which is returned.

The writeUTF method of interface DataOutput may be used to write data that is suitable for reading by this method.

Specified by:

readUTF in interface DataInput

Specified by:

readUTF in interface RandomDataInput

Returns:

a Unicode string.

writeUnsignedShort

public void writeUnsignedShort(long offset,
                      int v)

Description copied from interface: RandomDataOutput

Writes two bytes to the output stream to represent the value of the argument. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
  

The bytes written by this method may be read by the readShort method of interface RandomDataInput , which will then return a short equal to (short)v.

Specified by:

writeUnsignedShort in interface RandomDataOutput

Parameters:

offset - to be written to

v - the unsigned short value to be written.

readFully

public void readFully(@NotNull
             char[] data)

Specified by:

readFully in interface RandomDataInput

writeInt24

public void writeInt24(long offset,
              int v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of three bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt24 method of interface RandomDataInput , which will then return an int equal to v.

Specified by:

writeInt24 in interface RandomDataOutput

Parameters:

offset - to be written to

v - the int value to be written.

writeChars

public void writeChars(@NotNull
              CharSequence cs)

Description copied from interface: RandomDataOutput

Writes chars of the given CharSequence to the bytes, without encoding.

Specified by:

writeChars in interface RandomDataOutput

Parameters:

cs - the CharSequence to be written. Cannot be null.

See Also:

RandomDataOutput.writeChars(String)

readFloat

public float readFloat(long offset)

Description copied from interface: RandomDataInput

Reads four input bytes and returns a float value. It does this by first constructing an int value in exactly the manner of the readInt method, then converting this int value to a float in exactly the manner of the method Float.intBitsToFloat. This method is suitable for reading bytes written by the writeFloat method of interface DataOutput.

Specified by:

readFloat in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the float value read.

capacity

public long capacity()

Specified by:

capacity in interface BytesCommon

Returns:

space available

subSequence

public CharSequence subSequence(int start,
                       int end)

Specified by:

subSequence in interface CharSequence

clear

public Bytes clear()

Description copied from interface: BytesCommon

Clears this buffer. The position is set to zero, the limit is set to the capacity, and the mark is discarded.

Invoke this method before using a sequence of channel-read or put operations to fill this buffer. For example:

buf.clear();     // Prepare buffer for reading
 in.read(buf);    // Read data
 

This method does not actually erase the data in the buffer, but it is named as if it did because it will most often be used in situations in which that might as well be the case.

Specified by:

clear in interface BytesCommon

Returns:

This buffer

readUTFΔ

@Nullable
public String readUTFΔ(long offset)
                throws IllegalStateException

Description copied from interface: RandomDataInput

The same as readUTFΔ() except an offset is given.

Specified by:

readUTFΔ in interface RandomDataInput

Parameters:

offset - to read from

Returns:

a Unicode string or null if writeUTFΔ(null) was called

Throws:

IllegalStateException - if the length to be read is out of range.

objectSerializer

@NotNull
public ObjectSerializer objectSerializer()

Specified by:

objectSerializer in interface BytesCommon

Specified by:

objectSerializer in interface BytesStore

Returns:

the factory for marshallers.

writeOrderedLong

public void writeOrderedLong(long offset,
                    long v)

Description copied from interface: RandomDataOutput

Same as writeLong but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than a volatile write which stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedLong in interface RandomDataOutput

Parameters:

offset - to be written to

v - value to write

addAtomicLong

public long addAtomicLong(long offset,
                 long l)

Specified by:

addAtomicLong in interface RandomDataUpdate

append

@NotNull
public ByteStringAppender append(char c)

Specified by:

append in interface Appendable

Specified by:

append in interface ByteStringAppender

busyLockInt

public void busyLockInt(long offset)
                 throws InterruptedException,
                        IllegalStateException

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. It store the lower 24 bits of the Thread Id and the re-entrant count as 8 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 255 times you will get an ISE

Specified by:

busyLockInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

Throws:

InterruptedException - if interrupted

IllegalStateException - if the thread tries to lock it 255 nested time (without an unlock)

resetLockInt

public void resetLockInt(long offset)

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. Reset forces the lock to be cleared. Use this only when the program believes the locked thread is dead.

Specified by:

resetLockInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

readLine

@Nullable
public String readLine()

Description copied from interface: RandomDataInput

Reads the next line of text from the input stream. It reads successive bytes, converting each byte separately into a character, until it encounters a line terminator or end of file; the characters read are then returned as a String. Note that because this method processes bytes, it does not support input of the full Unicode character set.

If end of file is encountered before even one byte can be read, then null is returned. Otherwise, each byte that is read is converted to type char by zero-extension. If the character '\n' is encountered, it is discarded and reading ceases. If the character '\r' is encountered, it is discarded and, if the following byte converts to the character '\n', then that is discarded also; reading then ceases. If end of file is encountered before either of the characters '\n' and '\r' is encountered, reading ceases. Once reading has ceased, a String is returned that contains all the characters read and not discarded, taken in order. Note that every character in this string will have a value less than \u0100, that is, (char)256.

Specified by:

readLine in interface DataInput

Specified by:

readLine in interface RandomDataInput

Returns:

the next line of text from the input stream, or null if the end of file is encountered before a byte can be read.

readChar

public char readChar(long offset)

Description copied from interface: RandomDataInput

Reads two input bytes and returns a char value. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

(char)((a << 8) | (b & 0xff))
 

This method is suitable for reading bytes written by the writeChar method of interface RandomDataOutput.

Specified by:

readChar in interface RandomDataInput

Parameters:

offset - of the char to read.

Returns:

the char value read.

readInstance

@Nullable
public <T> T readInstance(@NotNull
                          Class<T> objClass,
                          T obj)

Description copied from interface: RandomDataInput

Read an instance of a class assuming objClass was provided when written.

Specified by:

readInstance in interface RandomDataInput

Type Parameters:

T - the class of the object to read

Parameters:

objClass - class to write

obj - to reuse or null if a new object is needed

Returns:

the object read from the stream

append

@NotNull
public ByteStringAppender append(boolean b)

Description copied from interface: ByteStringAppender

Writes "true" or "false".

Specified by:

append in interface ByteStringAppender

Parameters:

b - to write.

Returns:

this.

addUnsignedByte

public int addUnsignedByte(long offset,
                  int i)

Specified by:

addUnsignedByte in interface RandomDataUpdate

readFully

public void readFully(@NotNull
             byte[] byteArray,
             int off,
             int len)

Description copied from interface: RandomDataInput

Reads len bytes from an input stream.

This method blocks until one of the following conditions occurs:

• len bytes of input data are available, in which case a normal return is made.
• End of file is detected, in which case an EOFException is thrown.
• An I/O error occurs, in which case an IOException other than EOFException is thrown.

If bytes is null, a NullPointerException is thrown. If off is negative, or len is negative, or off+len is greater than the length of the array bytes, then an IndexOutOfBoundsException is thrown. If len is zero, then no bytes are read. Otherwise, the first byte read is stored into element bytes[off], the next one into bytes[off+1], and so on. The number of bytes read is, at most, equal to len.

Specified by:

readFully in interface DataInput

Specified by:

readFully in interface RandomDataInput

Parameters:

byteArray - the buffer into which the data is read.

off - an int specifying the offset into the data.

len - an int specifying the number of bytes to read.

readFully

public void readFully(@NotNull
             char[] data,
             int off,
             int len)

Specified by:

readFully in interface RandomDataInput

addAndGetInt

public int addAndGetInt(long offset,
               int delta)

Description copied from interface: RandomDataOutput

Atomically adds the given value to the current value.

Specified by:

addAndGetInt in interface RandomDataOutput

Parameters:

offset - of the int value to use.

delta - the value to add

Returns:

the updated value

addUnsignedInt

public long addUnsignedInt(long offset,
                  long i)

Specified by:

addUnsignedInt in interface RandomDataUpdate

writeInt48

public void writeInt48(long v)

Description copied from interface: RandomDataOutput

Writes a long value, which is comprised of eight bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 40))
 (byte)(0xff & (v >> 32))
 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>  8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt48 method of interface RandomDataInput , which will then return a long equal to v & ((1L << 48) - 1).

Specified by:

writeInt48 in interface RandomDataOutput

Parameters:

v - the long value to be written.

append

@NotNull
public ByteStringAppender append(@NotNull
                                MutableDecimal md)

Specified by:

append in interface ByteStringAppender

readMap

public <K,V> Map<K,V> readMap(@NotNull
                     Map<K,V> map,
                     @NotNull
                     Class<K> kClass,
                     @NotNull
                     Class<V> vClass)

Description copied from interface: RandomDataInput

Read a stop bit encoded length and populates this Map after zeroOut()ing it.

This is suitable to reading a list written using writeMap() in the RandomDataOutput interface

Specified by:

readMap in interface RandomDataInput

Type Parameters:

K - the map key class

V - the map value class

Parameters:

map - to populate

kClass - the map key class

vClass - the map value class

Returns:

the map

charAt

public char charAt(int index)

Specified by:

charAt in interface CharSequence

writeOrderedFloat

public void writeOrderedFloat(long offset,
                     float v)

Description copied from interface: RandomDataOutput

Same as writeFloat but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than a volatile write which stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedFloat in interface RandomDataOutput

Parameters:

offset - to write to

v - value to write

unlockRWWriteLock

public void unlockRWWriteLock(long offset)
                       throws IllegalStateException

Description copied from interface: RandomDataUpdate

Uses the 64-bit long at the offset as a non-reentrant read/write lock. There can be up to 2^20-1 threads reading, or waiting to read on a lock.

Specified by:

unlockRWWriteLock in interface RandomDataUpdate

Parameters:

offset - of the long monitor

Throws:

IllegalStateException - if the monitor is in an illegal state

parseUTF

public void parseUTF(@NotNull
            StringBuilder builder,
            @NotNull
            StopCharTester tester)
              throws BufferUnderflowException

Description copied from interface: ByteStringParser

Populate a StringBuilder with the UTF encoded text until the end.

Specified by:

parseUTF in interface ByteStringParser

Parameters:

builder - to zeroOut and append to.

tester - to detect when to stop.

Throws:

BufferUnderflowException

inputStream

@NotNull
public InputStream inputStream()

Specified by:

inputStream in interface BytesCommon

Returns:

these Bytes as an InputStream

remaining

public long remaining()

Specified by:

remaining in interface BytesCommon

Returns:

space remaining in bytes

writeByte

public void writeByte(long offset,
             int b)

Description copied from interface: RandomDataOutput

Writes to the output stream the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Specified by:

writeByte in interface RandomDataOutput

Parameters:

offset - to write byte

b - the byte to be written.

readDouble

public double readDouble()

Description copied from interface: RandomDataInput

Reads eight input bytes and returns a double value. It does this by first constructing a long value in exactly the manner of the readLong method, then converting this long value to a double in exactly the manner of the method Double.longBitsToDouble. This method is suitable for reading bytes written by the writeDouble method of interface DataOutput.

Specified by:

readDouble in interface DataInput

Specified by:

readDouble in interface RandomDataInput

Returns:

the double value read.

readCompactInt

public int readCompactInt()

Description copied from interface: RandomDataInput

Reads two or six input bytes and returns an int value. Let a be the first short read with readShort(). This mapped as follows; Short.MIN_VALUE => Integer.MIN_VALUE, Short.MAX_VALUE => Integer.MAX_VALUE, Short.MIN_VALUE+2 to Short.MAX_VALUE-1 => same as short value, Short.MIN_VALUE+1 => readInt().

This method is suitable for reading the bytes written by the writeCompactInt method of interface RandomDataOutput.

Specified by:

readCompactInt in interface RandomDataInput

Returns:

the 32-bit value read.

release

public boolean release()

Specified by:

release in interface ReferenceCounted

readBoolean

public boolean readBoolean(long offset)

Description copied from interface: RandomDataInput

Reads one input byte and returns true if that byte is nonzero, false if that byte is zero. This method is suitable for reading the byte written by the writeBoolean method of interface RandomDataOutput.

Specified by:

readBoolean in interface RandomDataInput

Parameters:

offset - to read byte translated into a boolean

Returns:

the boolean value read.

writeBoolean

public void writeBoolean(boolean v)

Description copied from interface: RandomDataOutput

Writes a boolean value to this output stream. If the argument v is true, the value (byte)1 is written; if v is false, the value (byte)0 is written. The byte written by this method may be read by the readBoolean method of interface DataInput, which will then return a boolean equal to v.

Specified by:

writeBoolean in interface DataOutput

Specified by:

writeBoolean in interface RandomDataOutput

Parameters:

v - the boolean to be written.

read

public int read(@NotNull
       byte[] byteArray)

Description copied from interface: RandomDataInput

Reads into an array of bytes. This method will block until some input is available.

Specified by:

read in interface ObjectInput

Specified by:

read in interface RandomDataInput

Parameters:

byteArray - the buffer into which the data is read

Returns:

the actual number of bytes read, -1 is returned when the end of the stream is reached.

writeChars

public void writeChars(@NotNull
              String s)

Description copied from interface: RandomDataOutput

Writes every character in the string s, to the output stream, in order, two bytes per character. If s is null, a NullPointerException is thrown. If s.length is zero, then no characters are written. Otherwise, the character s[0] is written first, then s[1], and so on; the last character written is s[s.length-1]. For each character, two bytes are actually written, high-order byte first, in exactly the manner of the writeChar method.

Specified by:

writeChars in interface DataOutput

Specified by:

writeChars in interface RandomDataOutput

Parameters:

s - the string value to be written. Cannot be null.

See Also:

RandomDataOutput.writeChars(CharSequence)

slice

public Bytes slice()

Description copied from interface: BytesCommon

Creates a new bytes whose content is a shared subsequence of this bytes' content.

The content of the new bytes will start at this bytes' current position. Changes to this bytes' content will be visible in the new bytes, and vice versa; the two bytes' position and limit values will be independent.

The new bytes' position will be zero, its capacity and its limit will be the number of bytes remaining in this bytes.

slice() is equivalent of slice(0, remaining()).

Specified by:

slice in interface BytesCommon

Returns:

the new bytes

See Also:

BytesCommon.slice(long, long)

zeroOut

public Bytes zeroOut()

Description copied from interface: RandomDataOutput

fill the Bytes with zeros, and clear the position.

Specified by:

zeroOut in interface RandomDataOutput

Returns:

this

toString

public void toString(Appendable sb,
            long start,
            long position,
            long end)

Description copied from interface: BytesCommon

Write a portion of the Bytes to an Appendable for printing.

Specified by:

toString in interface BytesCommon

Parameters:

sb - to append to

start - first byte

position - where to place a cursor or 0 = none.

end - last byte to append.

writeOrderedDouble

public void writeOrderedDouble(long offset,
                      double v)

Description copied from interface: RandomDataOutput

Same as writeDouble but include an ordered write barrier. This means all writes will be visible on a read barrier if this write is visible. This might not be visible to be same thread for some clock cycles so an immediate read could see an old value

This is much faster than a volatile write which stalls the pipeline. The data is visible to other threads at the same time.

Specified by:

writeOrderedDouble in interface RandomDataOutput

Parameters:

offset - to write to

v - value to write

readStopBit

public long readStopBit()

Description copied from interface: RandomDataInput

Reads between one and ten bytes with are stop encoded with support for negative numbers

 long l = 0, b;
 int count = 0;
 while ((b = readByte()) < 0) {
     l |= (b & 0x7FL) << count;
     count += 7;
 }
 if (b == 0 && count > 0)
     return ~l;
 return l | (b << count);
 

Specified by:

readStopBit in interface RandomDataInput

Returns:

a stop bit encoded number as a long.

busyLockLong

public void busyLockLong(long offset)
                  throws InterruptedException,
                         IllegalStateException

Description copied from interface: RandomDataUpdate

Lock across processes

Lock which uses 8 bytes. It store the lower 32 bits of the Thread Id, 16 bits are the process id and the re-entrant count as 16 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 65535 times you will get an ISE

Specified by:

busyLockLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

Throws:

InterruptedException - if interrupted

IllegalStateException - if the thread tries to lock it 65535 nested time (without an unlock)

writeDouble

public void writeDouble(double v)

Description copied from interface: RandomDataOutput

Writes a double value, which is comprised of eight bytes, to the output stream. It does this as if it first converts this double value to a long in exactly the manner of the Double.doubleToLongBits method and then writes the long value in exactly the manner of the writeLong method. The bytes written by this method may be read by the readDouble method of interface DataInput, which will then return a double equal to v.

Specified by:

writeDouble in interface DataOutput

Specified by:

writeDouble in interface RandomDataOutput

Parameters:

v - the double value to be written.

readDouble

public double readDouble(long offset)

Description copied from interface: RandomDataInput

Reads eight input bytes and returns a double value. It does this by first constructing a long value in exactly the manner of the readLong method, then converting this long value to a double in exactly the manner of the method Double.longBitsToDouble. This method is suitable for reading bytes written by the writeDouble method of interface DataOutput.

Specified by:

readDouble in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the double value read.

addFloat

public float addFloat(long offset,
             float f)

Specified by:

addFloat in interface RandomDataUpdate

skipTo

public boolean skipTo(@NotNull
             StopCharTester tester)

Description copied from interface: ByteStringParser

Wind from this positionAddr to the end of the field

Specified by:

skipTo in interface ByteStringParser

Parameters:

tester - to stop at

Returns:

true if we stopped at a stop character, false if we ran out of data.

writeChar

public void writeChar(int v)

Description copied from interface: RandomDataOutput

Writes a char value, which is comprised of two bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readChar method of interface DataInput , which will then return a char equal to (char)v.

Specified by:

writeChar in interface DataOutput

Specified by:

writeChar in interface RandomDataOutput

Parameters:

v - the char value to be written.

writeInt

public void writeInt(long offset,
            int v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of four bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt method of interface DataInput , which will then return an int equal to v.

Specified by:

writeInt in interface RandomDataOutput

Parameters:

offset - to be written to

v - the int value to be written.

outputStream

@NotNull
public OutputStream outputStream()

Specified by:

outputStream in interface BytesCommon

Returns:

these Bytes as an OutputStream

compareAndSwapDouble

public boolean compareAndSwapDouble(long offset,
                           double expected,
                           double x)

Description copied from interface: RandomDataOutput

Perform a compare and set operation. The value is set to x provided the expected value is set already. This operation is atomic.

Specified by:

compareAndSwapDouble in interface RandomDataOutput

Parameters:

offset - to write to.

expected - to expect

x - to set if expected was found

Returns:

true if set, false if the value was not expected

file

public File file()

Specified by:

file in interface BytesStore

readList

public <E> void readList(@NotNull
                Collection<E> list,
                @NotNull
                Class<E> eClass)

Description copied from interface: RandomDataInput

Read a stop bit encoded length and populates this Collection after zeroOut()ing it.

This is suitable to reading a list written using writeList() in the RandomDataOutput interface

Specified by:

readList in interface RandomDataInput

Type Parameters:

E - the list element class

Parameters:

list - to populate

eClass - the list element class

writeUnsignedByte

public void writeUnsignedByte(int v)

Description copied from interface: RandomDataOutput

Writes to the output stream the eight low- order bits of the argument v. The 24 high-order bits of v are ignored. (This means that writeByte does exactly the same thing as write for an integer argument.) The byte written by this method may be read by the readUnsignedByte method of interface DataInput, which will then return a byte equal to (byte)v.

Specified by:

writeUnsignedByte in interface RandomDataOutput

Parameters:

v - the byte value to be written.

readInt24

public int readInt24(long offset)

Description copied from interface: RandomDataInput

Reads three input bytes and returns a 24-bit int value. Let a-c be the first through third bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 ((((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8))) >> 8
 

This method is suitable for reading bytes written by the writeInt24 method of interface RandomDataOutput.

Specified by:

readInt24 in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the int value read.

readInt48

public long readInt48()

Description copied from interface: RandomDataInput

Reads six input bytes and returns a long value. Let a-f be the first through sixth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16)) >> 16
 

This method is suitable for reading bytes written by the writeInt48 method of interface RandomDataOutput.

Specified by:

readInt48 in interface RandomDataInput

Returns:

the long value read.

write

public void write(@NotNull
         char[] data)

Specified by:

write in interface RandomDataOutput

readObject

@Nullable
public Object readObject()
                  throws IllegalStateException

Description copied from interface: RandomDataInput

Read and return an object. The class that implements this interface defines where the object is "read" from.

Specified by:

readObject in interface ObjectInput

Specified by:

readObject in interface RandomDataInput

Returns:

the object read from the stream

Throws:

IllegalStateException - the class of a serialized object cannot be found or any of the usual Input/Output related exceptions occur.

append

@NotNull
public ByteStringAppender append(@Nullable
                                Enum value)

Specified by:

append in interface ByteStringAppender

parseUTF

@NotNull
public String parseUTF(@NotNull
                      StopCharTester tester)
                throws BufferUnderflowException

Specified by:

parseUTF in interface ByteStringParser

Throws:

BufferUnderflowException

readInt

public int readInt()

Description copied from interface: RandomDataInput

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff))
 

This method is suitable for reading bytes written by the writeInt method of interface DataOutput.

Specified by:

readInt in interface DataInput

Specified by:

readInt in interface RandomDataInput

Returns:

the int value read.

write

public void write(@NotNull
         char[] data,
         int off,
         int len)

Specified by:

write in interface RandomDataOutput

addUnsignedShort

public int addUnsignedShort(long offset,
                   int i)

Specified by:

addUnsignedShort in interface RandomDataUpdate

readFloat

public float readFloat()

Description copied from interface: RandomDataInput

Reads four input bytes and returns a float value. It does this by first constructing an int value in exactly the manner of the readInt method, then converting this int value to a float in exactly the manner of the method Float.intBitsToFloat. This method is suitable for reading bytes written by the writeFloat method of interface DataOutput.

Specified by:

readFloat in interface DataInput

Specified by:

readFloat in interface RandomDataInput

Returns:

the float value read.

available

public int available()

Specified by:

available in interface ObjectInput

Specified by:

available in interface RandomDataInput

Returns:

remaining() or Integer.MAX_VALUE if larger.

position

public long position()

Specified by:

position in interface BytesCommon

Returns:

the offset read/written which must be >= limit()

addDouble

public double addDouble(long offset,
               double d)

Specified by:

addDouble in interface RandomDataUpdate

write

public void write(int b)

Description copied from interface: RandomDataOutput

Writes to the output stream the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Specified by:

write in interface RandomDataOutput

Parameters:

b - the byte to be written.

skipBytes

public int skipBytes(int n)

Description copied from interface: RandomDataInput

Makes an attempt to skip over n bytes of data from the input stream, discarding the skipped bytes. However, it may skip over some smaller number of bytes, possibly zero. This may result from any of a number of conditions; reaching end of file before n bytes have been skipped is only one possibility. This method never throws an EOFException. The actual number of bytes skipped is returned.

Specified by:

skipBytes in interface DataInput

Specified by:

skipBytes in interface RandomDataInput

Parameters:

n - the number of bytes to be skipped.

Returns:

the number of bytes actually skipped.

readCompactShort

public short readCompactShort()

Description copied from interface: RandomDataInput

Reads one or three input bytes and returns a short value. Let a be the first byte read. This mapped as follows; Byte.MIN_VALUE => Short.MIN_VALUE, Byte.MAX_VALUE => Short.MAX_VALUE, Byte.MIN_VALUE+2 to Byte.MAX_VALUE-1 => same as short value, Byte.MIN_VALUE+1 => readShort().

This method is suitable for reading the bytes written by the writeCompactShort method of interface RandomDataOutput.

Specified by:

readCompactShort in interface RandomDataInput

Returns:

the 16-bit value read.

write

public void write(long offset,
         byte[] byteArray)

Description copied from interface: RandomDataOutput

Writes to the output stream all the bytes in array bytes. If bytes is null, a NullPointerException is thrown. If bytes.length is zero, then no bytes are written. Otherwise, the byte bytes[0] is written first, then bytes[1], and so on; the last byte written is bytes[bytes.length-1].

Specified by:

write in interface RandomDataOutput

Parameters:

offset - to be written

byteArray - the data.

writeList

public <E> void writeList(@NotNull
                 Collection<E> list)

Description copied from interface: RandomDataOutput

Write an ordered collection of "enumerable objects" (See writeEnum). This writes the stop bit encoded length, followed by multiple calls to writeEnum All the elements must be of the same type.

This can be read by the readList method of RandomInputStream and the reader must know the type of each element. You can send the class first by using writeEnum of the element class

Specified by:

writeList in interface RandomDataOutput

Type Parameters:

E - the class of the list elements

Parameters:

list - to be written

read

public int read(@NotNull
       byte[] byteArray,
       int off,
       int len)

Description copied from interface: RandomDataInput

Reads into an array of bytes. This method will block until some input is available.

Specified by:

read in interface ObjectInput

Specified by:

read in interface RandomDataInput

Parameters:

byteArray - the buffer into which the data is read

off - the start offset of the data

len - the maximum number of bytes read

Returns:

the actual number of bytes read, -1 is returned when the end of the stream is reached.

readInt

public int readInt(long offset)

Description copied from interface: RandomDataInput

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff))
 

This method is suitable for reading bytes written by the writeInt method of interface RandomDataOutput.

Specified by:

readInt in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the int value read.

writeFloat

public void writeFloat(long offset,
              float v)

Description copied from interface: RandomDataOutput

Writes a float value, which is comprised of four bytes, to the output stream. It does this as if it first converts this float value to an int in exactly the manner of the Float.floatToIntBits method and then writes the int value in exactly the manner of the writeInt method. The bytes written by this method may be read by the readFloat method of interface DataInput, which will then return a float equal to v.

Specified by:

writeFloat in interface RandomDataOutput

Parameters:

offset - to write to

v - the float value to be written.

parseLong

public long parseLong()
               throws BufferUnderflowException

Specified by:

parseLong in interface ByteStringParser

Returns:

the next long, stopping at the first invalid character

Throws:

BufferUnderflowException

readUnsignedByte

public int readUnsignedByte(long offset)

Description copied from interface: RandomDataInput

Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255. This method is suitable for reading the byte written by the writeByte method of interface RandomDataOutput if the argument to writeByte was intended to be a value in the range 0 through 255.

Specified by:

readUnsignedByte in interface RandomDataInput

Parameters:

offset - of byte to read

Returns:

the unsigned 8-bit value read.

slice

public Bytes slice(long offset,
          long length)

Description copied from interface: BytesCommon

Creates a new bytes whose content is a shared subsequence of this bytes' content.

The content of the new bytes will start at this bytes' current BytesCommon.position()+ offset. Changes to this bytes' content will be visible in the new bytes, and vice versa; the two bytes' position and limit values will be independent.

The new bytes' position will be zero, its capacity and its limit will be equal to length.

offset can be negative (if current bytes' position is positive) and length can run out of current bytes' limit, the restriction is that new bytes' should be within this bytes' absolute bounds.

Specified by:

slice in interface BytesCommon

Parameters:

offset - relative offset of the new bytes from the current bytes' position

length - capacity of the new bytes

Returns:

the new bytes

See Also:

BytesCommon.slice()

writeObject

public void writeObject(@Nullable
               Object object)

Description copied from interface: RandomDataOutput

Write an object as either an "enumerable object" or a Serializable/Externalizable object using Java Serialization. Java Serialization is much slower but sometimes more convenient than using BytesMarshallable.

Specified by:

writeObject in interface ObjectOutput

Specified by:

writeObject in interface RandomDataOutput

Parameters:

object - to write

length

public int length()

Specified by:

length in interface CharSequence

readChar

public char readChar()

Description copied from interface: RandomDataInput

Reads two input bytes and returns a char value. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

(char)((a << 8) | (b & 0xff))
 

This method is suitable for reading bytes written by the writeChar method of interface DataOutput.

Specified by:

readChar in interface DataInput

Specified by:

readChar in interface RandomDataInput

Returns:

the char value read.

read

public int read()

Description copied from interface: RandomDataInput

Reads a byte of data. This method will block if no input is available.

Specified by:

read in interface ObjectInput

Specified by:

read in interface RandomDataInput

Returns:

the byte read, or -1 if the end of the stream is reached.

writeBoolean

public void writeBoolean(long offset,
                boolean v)

Description copied from interface: RandomDataOutput

Writes a boolean value to this output stream. If the argument v is true, the value (byte)1 is written; if v is false, the value (byte)0 is written. The byte written by this method may be read by the readBoolean method of interface DataInput, which will then return a boolean equal to v.

Specified by:

writeBoolean in interface RandomDataOutput

Parameters:

offset - to write boolean

v - the boolean to be written.

parseDouble

public double parseDouble()
                   throws BufferUnderflowException

Specified by:

parseDouble in interface ByteStringParser

Throws:

BufferUnderflowException

writeCompactDouble

public void writeCompactDouble(double v)

Description copied from interface: RandomDataOutput

Writes four or twelve bytes as follow;

 if ((float) d == d) {
     writeFloat((float) d);
 } else {
     writeFloat(Float.NaN);
     writeDouble(d);
 }
 

The bytes written by this method may be read by the readCompactDouble method of interface RandomDataInput , which will then return a double equal to v.

Specified by:

writeCompactDouble in interface RandomDataOutput

Parameters:

v - the double value to be written.

addAtomicFloat

public float addAtomicFloat(long offset,
                   float f)

Specified by:

addAtomicFloat in interface RandomDataUpdate

selfTerminating

public void selfTerminating(boolean selfTerminate)

Description copied from interface: ByteStringParser

If set to true, the end of the Bytes will be the end of any consuming String, double or long. If false, incomplete reads will throw a BufferUnderflowException

Specified by:

selfTerminating in interface ByteStringParser

Parameters:

selfTerminate - if true, the end of the Buffer is silent.

readCompactUnsignedInt

public long readCompactUnsignedInt()

Description copied from interface: RandomDataInput

Reads two or six input bytes and returns an int value. Let a be the first short read with readShort(). This mapped as follows; -1 => readUnsignedInt(), default => (a & 0xFFFF)

This method is suitable for reading the bytes written by the writeCompactUnsignedInt method of interface RandomDataOutput.

Specified by:

readCompactUnsignedInt in interface RandomDataInput

Returns:

the unsigned 32-bit value read.

readVolatileDouble

public double readVolatileDouble(long offset)

Description copied from interface: RandomDataInput

This is the same as readDouble() except a read barrier is performed first.

Reads four input bytes and returns a float value.

This method is suitable for reading bytes written by the writeOrderedFloat method of interface RandomDataOutput.

Specified by:

readVolatileDouble in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the int value read.

addLong

public long addLong(long offset,
           long i)

Specified by:

addLong in interface RandomDataUpdate

readLong

public long readLong(long offset)

Description copied from interface: RandomDataInput

Reads eight input bytes and returns a long value. Let a-h be the first through eighth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16) |
  ((long)(g & 0xff) <<  8) |
  ((long)(h & 0xff)))
 

This method is suitable for reading bytes written by the writeLong method of interface RandomDataOutput.

Specified by:

readLong in interface RandomDataInput

Parameters:

offset - of the long to read

Returns:

the long value read.

compareAndSwapInt

public boolean compareAndSwapInt(long offset,
                        int expected,
                        int x)

Description copied from interface: RandomDataOutput

Perform a compare and set operation. The value is set to x provided the expected value is set already. This operation is atomic.

Specified by:

compareAndSwapInt in interface RandomDataOutput

Parameters:

offset - to write to.

expected - to expect

x - to set if expected was found

Returns:

true if set, false if the value was not expected

append

@NotNull
public ByteStringAppender append(@NotNull
                                CharSequence s)

Specified by:

append in interface Appendable

Specified by:

append in interface ByteStringAppender

append

@NotNull
public ByteStringAppender append(int i)

Specified by:

append in interface ByteStringAppender

writeMap

public <K,V> void writeMap(@NotNull
                  Map<K,V> map)

Description copied from interface: RandomDataOutput

Write the keys and values of a Map of "enumerable objects" (See writeEnum). This writes the stop bit encoded length, followed by multiple calls to writeEnum for each key and value. All the keys must be of the same type. All values must be of the same type.

Specified by:

writeMap in interface RandomDataOutput

Type Parameters:

K - the class of the map keys

V - the class of the map values

Parameters:

map - to write out

parseBoolean

public Boolean parseBoolean(@NotNull
                   StopCharTester tester)
                     throws BufferUnderflowException

Description copied from interface: ByteStringParser

Return true or false, or null if it could not be detected as true or false. Case is not important

false: f, false, n, no, 0

true: t, true, y, yes, 1

Specified by:

parseBoolean in interface ByteStringParser

Parameters:

tester - to detect the end of the text.

Returns:

true, false, or null if neither.

Throws:

BufferUnderflowException

tryRWReadLock

public boolean tryRWReadLock(long offset,
                    long timeOutNS)
                      throws IllegalStateException,
                             InterruptedException

Description copied from interface: RandomDataUpdate

Uses the 64-bit long at the offset as a non-reentrant read/write lock. There can be up to 2^20-1 threads reading, or waiting to read on a lock.

Specified by:

tryRWReadLock in interface RandomDataUpdate

Parameters:

offset - of the long monitor

timeOutNS - length of time to busy wait for the lock.

Returns:

if the lock could be obtained in time.

Throws:

IllegalStateException - if the monitor is in an illegal state

InterruptedException

readUnsignedShort

public int readUnsignedShort(long offset)

Description copied from interface: RandomDataInput

Reads two input bytes and returns an int value in the range 0 through 65535. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

     (((a & 0xff) << 8) | (b & 0xff))
 

This method is suitable for reading the bytes written by the writeShort method of interface RandomDataOutput if the argument to writeUnsignedShort was intended to be a value in the range 0 through 65535.

Specified by:

readUnsignedShort in interface RandomDataInput

Parameters:

offset - of short to read.

Returns:

the unsigned 16-bit value read.

writeUTFΔ

public void writeUTFΔ(long offset,
             int maxSize,
             @Nullable
             CharSequence s)
               throws IllegalStateException

Description copied from interface: RandomDataOutput

Write the same encoding as writeUTF with the following changes. 1) The length is stop bit encoded i.e. one byte longer for short strings, but is not limited in length. 2) The string can be null.

Specified by:

writeUTFΔ in interface RandomDataOutput

Parameters:

offset - to write to

maxSize - maximum number of bytes to use

s - the string value to be written. Can be null.

Throws:

IllegalStateException - if the size is too large.

readByte

public byte readByte(long offset)

Description copied from interface: RandomDataInput

Reads and returns one input byte. The byte is treated as a signed value in the range -128 through 127, inclusive. This method is suitable for reading the byte written by the writeByte method of interface RandomDataOutput.

Specified by:

readByte in interface RandomDataInput

Parameters:

offset - of byte to read.

Returns:

the 8-bit value read.

append

@NotNull
public ByteStringAppender append(long l)

Specified by:

append in interface ByteStringAppender

writeUTFΔ

public void writeUTFΔ(@Nullable
             CharSequence s)

Description copied from interface: RandomDataOutput

Write the same encoding as writeUTF with the following changes. 1) The length is stop bit encoded i.e. one byte longer for short strings, but is not limited in length. 2) The string can be null.

Specified by:

writeUTFΔ in interface RandomDataOutput

Parameters:

s - the string value to be written. Can be null.

compareAndSwapLong

public boolean compareAndSwapLong(long offset,
                         long expected,
                         long x)

Description copied from interface: RandomDataOutput

Perform a compare and set operation. The value is set to x provided the expected value is set already. This operation is atomic.

Specified by:

compareAndSwapLong in interface RandomDataOutput

Parameters:

offset - to write to.

expected - to expect

x - to set if expected was found

Returns:

true if set, false if the value was not expected

writeCompactShort

public void writeCompactShort(int v)

Description copied from interface: RandomDataOutput

Writes one or three bytes as follows; Short.MIN_VALUE => Byte.MIN_VALUE, Short.MAX_VALUE => Byte.MAX_VALUE, Short.MIN_VALUE+2 to Short.MAX_VALUE-1 => writeByte(x), default => writeByte(Byte.MIN_VALUE+1; writeShort(x)

The bytes written by this method may be read by the readCompactShort method of interface RandomDataInput , which will then return a short equal to (short)v.

Specified by:

writeCompactShort in interface RandomDataOutput

Parameters:

v - the short value to be written.

bytes

public Bytes bytes()

Description copied from interface: BytesStore

Create a bytes whose content is the whole bytes store. Call of this method is equivalent to bytes(0, size()) call.

Specified by:

bytes in interface BytesStore

Returns:

the new bytes

See Also:

BytesStore.bytes(long, long)

write

public void write(byte[] byteArray)

Description copied from interface: RandomDataOutput

Writes to the output stream all the bytes in array bytes. If bytes is null, a NullPointerException is thrown. If bytes.length is zero, then no bytes are written. Otherwise, the byte bytes[0] is written first, then bytes[1], and so on; the last byte written is bytes[bytes.length-1].

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Specified by:

write in interface RandomDataOutput

Parameters:

byteArray - the data.

unlockInt

public void unlockInt(long offset)
               throws IllegalMonitorStateException

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. Unlock this It store the lower 24 bits of the Thread Id and the re-entrant count as 8 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 255 times you will get an ISE

Specified by:

unlockInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

Throws:

IllegalMonitorStateException - if this thread doesn't hold the lock

tryLockLong

public boolean tryLockLong(long offset)

Description copied from interface: RandomDataUpdate

Lock across processes

Lock which uses 8 bytes. It store the lower 32 bits of the Thread Id, 16 bits are the process id and the re-entrant count as 16 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 65535 times you will get an ISE

Specified by:

tryLockLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

Returns:

did it lock or not.

readByte

public byte readByte()

Description copied from interface: RandomDataInput

Reads and returns one input byte. The byte is treated as a signed value in the range -128 through 127, inclusive. This method is suitable for reading the byte written by the writeByte method of interface DataOutput.

Specified by:

readByte in interface DataInput

Specified by:

readByte in interface RandomDataInput

Returns:

the 8-bit value read.

tryRWWriteLock

public boolean tryRWWriteLock(long offset,
                     long timeOutNS)
                       throws IllegalStateException,
                              InterruptedException

Description copied from interface: RandomDataUpdate

Uses the 64-bit long at the offset as a non-reentrant read/write lock. There can be up to 2^20-1 threads reading, or waiting to read on a lock.

Specified by:

tryRWWriteLock in interface RandomDataUpdate

Parameters:

offset - of the long monitor

timeOutNS - length of time to busy wait for the lock.

Returns:

if the lock could be obtained in time.

Throws:

IllegalStateException - if the monitor is in an illegal state

InterruptedException

write

public void write(byte[] byteArray,
         int off,
         int len)

Description copied from interface: RandomDataOutput

Writes len bytes from array bytes, in order, to the output stream. If bytes is null, a NullPointerException is thrown. If off is negative, or len is negative, or off+len is greater than the length of the array bytes, then an IndexOutOfBoundsException is thrown. If len is zero, then no bytes are written. Otherwise, the byte bytes[off] is written first, then bytes[off+1], and so on; the last byte written is bytes[off+len-1].

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Specified by:

write in interface RandomDataOutput

Parameters:

byteArray - the data.

off - the start offset in the data.

len - the number of bytes to write.

writeUTF

public void writeUTF(@NotNull
            String s)

Description copied from interface: RandomDataOutput

Writes two bytes of length information to the output stream, followed by the modified UTF-8 representation of every character in the string s. If s is null, a NullPointerException is thrown. Each character in the string s is converted to a group of one, two, or three bytes, depending on the value of the character.

If a character c is in the range \u0001 through \u007f, it is represented by one byte:

(byte)c 

If a character c is \u0000 or is in the range \u0080 through \u07ff, then it is represented by two bytes, to be written in the order shown:

 (byte)(0xc0 | (0x1f & (c >> 6)))
 (byte)(0x80 | (0x3f & c))
  

If a character c is in the range \u0800 through uffff, then it is represented by three bytes, to be written in the order shown:

 (byte)(0xe0 | (0x0f & (c >> 12)))
 (byte)(0x80 | (0x3f & (c >>  6)))
 (byte)(0x80 | (0x3f & c))
  

First, the total number of bytes needed to represent all the characters of s is calculated. If this number is larger than 65535, then a UTFDataFormatException is thrown. Otherwise, this length is written to the output stream in exactly the manner of the writeShort method; after this, the one-, two-, or three-byte representation of each character in the string s is written.

The bytes written by this method may be read by the readUTF method of interface DataInput , which will then return a String equal to s.

Specified by:

writeUTF in interface DataOutput

Specified by:

writeUTF in interface RandomDataOutput

Parameters:

s - the string value to be written. Cannot be null

load

public Bytes load()

Description copied from interface: BytesCommon

Access every page to ensure those pages are in memory.

Specified by:

load in interface BytesCommon

Returns:

this.

getAndAdd

public int getAndAdd(long offset,
            int delta)

Description copied from interface: RandomDataOutput

Atomically adds the given value to the current value.

Specified by:

getAndAdd in interface RandomDataOutput

Parameters:

offset - of the int value to use.

delta - the value to add

Returns:

the previous value

readShort

public short readShort(long offset)

Description copied from interface: RandomDataInput

Reads two input bytes and returns a short value. Let a be the first byte read and b be the second byte on big endian machines, and the opposite on little endian machines. The value returned is:

     (short)((a << 8) | (b & 0xff))
 

This method is suitable for reading the bytes written by the writeShort method of interface RandomDataOutput.

Specified by:

readShort in interface RandomDataInput

Parameters:

offset - of short to read.

Returns:

the 16-bit value read.

stepBackAndSkipTo

public boolean stepBackAndSkipTo(@NotNull
                        StopCharTester tester)

Description copied from interface: ByteStringParser

Make sure we just read a stop character

Specified by:

stepBackAndSkipTo in interface ByteStringParser

Parameters:

tester - to stop at

Returns:

true if we stopped at a stop character, false if we ran out of data.

resetLockLong

public void resetLockLong(long offset)

Description copied from interface: RandomDataUpdate

Lock which uses 8 bytes. Reset forces the lock to be cleared. Use this only when the program believes the locked thread is dead.

Specified by:

resetLockLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

readVolatileInt

public int readVolatileInt(long offset)

Description copied from interface: RandomDataInput

This is the same as readInt() except a read barrier is performed first.

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff))
 

This method is suitable for reading bytes written by the writeOrderedInt or writeVolatileInt method of interface RandomDataOutput.

Specified by:

readVolatileInt in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the int value read.

byteOrder

@NotNull
public ByteOrder byteOrder()

Specified by:

byteOrder in interface BytesCommon

Returns:

Byte order for reading binary

bytes

public Bytes bytes(long offset,
          long length)

Description copied from interface: BytesStore

Slice a Bytes object with start address of address+ offset and capacity of length.

If this BytesStore is Bytes itself rather than natural BytesStore object, this method will offset the new bytes from the bytes' start, not from bytes' position like BytesCommon.slice(long, long).

offset should be non-negative, length should be positive, offset + length should be less or equal to size.

Specified by:

bytes in interface BytesStore

Parameters:

offset - offset of the new bytes from the bytes store address

length - capacity and limit of the new bytes

Returns:

the sliced Bytes

See Also:

BytesStore.bytes()

alignPositionAddr

public void alignPositionAddr(int alignment)

Description copied from interface: BytesCommon

Align the position address to a power of 2.

Specified by:

alignPositionAddr in interface BytesCommon

Parameters:

alignment - power of 2 to align to.

writeUnsignedShort

public void writeUnsignedShort(int v)

Description copied from interface: RandomDataOutput

Writes two bytes to the output stream to represent the value of the argument. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
  

The bytes written by this method may be read by the readUnsignedShort method of interface RandomDataInput , which will then return a short equal to (short)v.

Specified by:

writeUnsignedShort in interface RandomDataOutput

Parameters:

v - the unsigned short value to be written.

parseLong

public long parseLong(int base)
               throws BufferUnderflowException

Specified by:

parseLong in interface ByteStringParser

Parameters:

base - to use.

Returns:

the next long, stopping at the first invalid character

Throws:

BufferUnderflowException

readBoolean

public boolean readBoolean()

Description copied from interface: RandomDataInput

Reads one input byte and returns true if that byte is nonzero, false if that byte is zero. This method is suitable for reading the byte written by the writeBoolean method of interface DataOutput.

Specified by:

readBoolean in interface DataInput

Specified by:

readBoolean in interface RandomDataInput

Returns:

the boolean value read.

checkEndOfBuffer

public void checkEndOfBuffer()
                      throws IndexOutOfBoundsException

Specified by:

checkEndOfBuffer in interface BytesCommon

Throws:

IndexOutOfBoundsException - if the bounds of the Bytes has been exceeded.

readVolatileFloat

public float readVolatileFloat(long offset)

Description copied from interface: RandomDataInput

This is the same as readFloat() except a read barrier is performed first.

Reads four input bytes and returns a float value.

This method is suitable for reading bytes written by the writeOrderedFloat method of interface RandomDataOutput.

Specified by:

readVolatileFloat in interface RandomDataInput

Parameters:

offset - to read from

Returns:

the int value read.

parseDecimal

@NotNull
public MutableDecimal parseDecimal(@NotNull
                                  MutableDecimal decimal)
                            throws BufferUnderflowException

Specified by:

parseDecimal in interface ByteStringParser

Throws:

BufferUnderflowException

addAtomicDouble

public double addAtomicDouble(long offset,
                     double d)

Specified by:

addAtomicDouble in interface RandomDataUpdate

unlockLong

public void unlockLong(long offset)
                throws IllegalMonitorStateException

Description copied from interface: RandomDataUpdate

Lock across processes

Lock which uses 8 bytes. It store the lower 32 bits of the Thread Id, 16 bits are the process id and the re-entrant count as 16 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 65535 times you will get an ISE

Specified by:

unlockLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

Throws:

IllegalMonitorStateException - if this thread doesn't hold the lock

writeFloat

public void writeFloat(float v)

Description copied from interface: RandomDataOutput

Writes a float value, which is comprised of four bytes, to the output stream. It does this as if it first converts this float value to an int in exactly the manner of the Float.floatToIntBits method and then writes the int value in exactly the manner of the writeInt method. The bytes written by this method may be read by the readFloat method of interface DataInput, which will then return a float equal to v.

Specified by:

writeFloat in interface DataOutput

Specified by:

writeFloat in interface RandomDataOutput

Parameters:

v - the float value to be written.

reserve

public void reserve()

Specified by:

reserve in interface ReferenceCounted

write

public void write(@NotNull
         ByteBuffer bb)

Description copied from interface: RandomDataOutput

Copies the contents of a ByteBuffer from the position to the limit.

This method transfers the bytes remaining in the given source buffer into this buffer. If there are more bytes remaining in the source buffer than in this buffer, that is, if src.remaining() > remaining(), then no bytes are transferred and a BufferOverflowException is thrown.

Otherwise, this method copies n = src.remaining() bytes from the given buffer into this buffer, starting at each buffer's current position. The positions of both buffers are then incremented by n.

In other words, an invocation of this method of the form dst.write(src) has exactly the same effect as the loop

     while (src.hasRemaining())
         dst.writeByte(src.get()); 
  

Specified by:

write in interface RandomDataOutput

Parameters:

bb - to copy.

threadIdForLockLong

public long threadIdForLockLong(long offset)

Description copied from interface: RandomDataUpdate

Lock which uses 8 bytes. This returns the lower bytes which contain the threadId.

Specified by:

threadIdForLockLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

Returns:

the threadId or 0 if no thread holds the lock.

writeChar

public void writeChar(long offset,
             int v)

Description copied from interface: RandomDataOutput

Writes a char value, which is comprised of two bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readChar method of interface DataInput , which will then return a char equal to (char)v.

Specified by:

writeChar in interface RandomDataOutput

Parameters:

offset - to be written to

v - the char value to be written.

tryLockNanosLong

public boolean tryLockNanosLong(long offset,
                       long nanos)

Description copied from interface: RandomDataUpdate

Lock across processes

Lock which uses 8 bytes. It store the lower 32 bits of the Thread Id, 16 bits are the process id and the re-entrant count as 16 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 65535 times you will get an ISE

Specified by:

tryLockNanosLong in interface RandomDataUpdate

Parameters:

offset - of the start of the 8-byte lock

nanos - to try to lock for

Returns:

did it lock or not.

addAtomicInt

public int addAtomicInt(long offset,
               int i)

Specified by:

addAtomicInt in interface RandomDataUpdate

writeInstance

public <OBJ> void writeInstance(@NotNull
                       Class<OBJ> objClass,
                       @NotNull
                       OBJ obj)

Description copied from interface: RandomDataOutput

Write an object with the assumption that the objClass will be provided when the class is read.

Specified by:

writeInstance in interface RandomDataOutput

Type Parameters:

OBJ - the class of the object to write

Parameters:

objClass - class to write

obj - to write

readFully

public void readFully(@NotNull
             byte[] byteArray)

Description copied from interface: RandomDataInput

Reads some bytes from an input stream and stores them into the buffer array b. The number of bytes read is equal to the length of b.

This method blocks until one of the following conditions occurs:

• b.length bytes of input data are available, in which case a normal return is made.
• End of file is detected, in which case an EOFException is thrown.
• An I/O error occurs, in which case an IOException other than EOFException is thrown.

If bytes is null, a NullPointerException is thrown. If bytes.length is zero, then no bytes are read. Otherwise, the first byte read is stored into element bytes[0], the next one into bytes[1], and so on. If an exception is thrown from this method, then it may be that some but not all bytes of bytes have been updated with data from the input stream.

Specified by:

readFully in interface DataInput

Specified by:

readFully in interface RandomDataInput

Parameters:

byteArray - the buffer into which the data is read.

position

public Bytes position(long position)

Specified by:

position in interface BytesCommon

Parameters:

position - to skip to

Returns:

this bytes object back

writeLong

public void writeLong(long offset,
             long v)

Description copied from interface: RandomDataOutput

Writes a long value, which is comprised of eight bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 56))
 (byte)(0xff & (v >> 48))
 (byte)(0xff & (v >> 40))
 (byte)(0xff & (v >> 32))
 (byte)(0xff & (v >> 24))
 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>  8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readLong method of interface DataInput , which will then return a long equal to v.

Specified by:

writeLong in interface RandomDataOutput

Parameters:

offset - to be written to

v - the long value to be written.

readObject

public void readObject(Object object,
              int start,
              int end)

Description copied from interface: RandomDataInput

Read the object from start to end bytes

Specified by:

readObject in interface RandomDataInput

Parameters:

object - to read into

start - byte inclusive

end - byte exclusive

threadIdForLockInt

public int threadIdForLockInt(long offset)

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. This returns the lower bytes which contain the threadId.

Specified by:

threadIdForLockInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

Returns:

the threadId or 0 if no thread holds the lock.

appendDateMillis

@NotNull
public ByteStringAppender appendDateMillis(long timeInMS)

Specified by:

appendDateMillis in interface ByteStringAppender

writeInt24

public void writeInt24(int v)

Description copied from interface: RandomDataOutput

Writes an int value, which is comprised of three bytes, to the output stream. The byte values to be written, in the order shown for big endian machines and the opposite for little endian, are:

 (byte)(0xff & (v >> 16))
 (byte)(0xff & (v >>    8))
 (byte)(0xff & v)
 

The bytes written by this method may be read by the readInt24 method of interface RandomDataInput , which will then return an int equal to v.

Specified by:

writeInt24 in interface RandomDataOutput

Parameters:

v - the int value to be written.

startsWith

public boolean startsWith(RandomDataInput keyBytes)

Specified by:

startsWith in interface RandomDataInput

readUnsignedInt

public long readUnsignedInt()

Description copied from interface: RandomDataInput

Reads four input bytes and returns an int value. Let a-d be the first through fourth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 ((((long) a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d &
 0xff))
 

This method is suitable for reading bytes written by the writeUnsignedInt method of interface RandomDataOutput.

Specified by:

readUnsignedInt in interface RandomDataInput

Returns:

the unsigned int value read.

limit

public Bytes limit(long limit)

Specified by:

limit in interface BytesCommon

Parameters:

limit - the new limit which must be >= capacity()

Returns:

this bytes object back

finish

public void finish()

Description copied from interface: BytesCommon

Mark the end of the message if writing and check we are at the end of the message if reading.

Specified by:

finish in interface BytesCommon

address

public long address()

Specified by:

address in interface BytesStore

tryLockInt

public boolean tryLockInt(long offset)

Description copied from interface: RandomDataUpdate

Lock which uses 4 bytes. It store the lower 24 bits of the Thread Id and the re-entrant count as 8 bit. This means if you create more than 16 million threads you can get a collision, and if you try to re-enter 255 times you will get an ISE

Specified by:

tryLockInt in interface RandomDataUpdate

Parameters:

offset - of the start of the 4-byte lock

Returns:

did it lock or not.

readVolatileLong

public long readVolatileLong(long offset)

Description copied from interface: RandomDataInput

This is the same readLong() except a dread barrier is performed first

Reads eight input bytes and returns a long value. Let a-h be the first through eighth bytes read on big endian machines, and the opposite on little endian machines. The value returned is:

 
 (((long)(a & 0xff) << 56) |
  ((long)(b & 0xff) << 48) |
  ((long)(c & 0xff) << 40) |
  ((long)(d & 0xff) << 32) |
  ((long)(e & 0xff) << 24) |
  ((long)(f & 0xff) << 16) |
  ((long)(g & 0xff) <<  8) |
  ((long)(h & 0xff)))
 

This method is suitable for reading bytes written by the writeOrderedLong or writeVolatileLong method of interface RandomDataOutput.

Specified by:

readVolatileLong in interface RandomDataInput

Parameters:

offset - of the long to read

Returns:

the long value read.

readUnsignedByte

public int readUnsignedByte()

Description copied from interface: RandomDataInput

Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255. This method is suitable for reading the byte written by the writeByte method of interface DataOutput if the argument to writeByte was intended to be a value in the range 0 through 255.

Specified by:

readUnsignedByte in interface DataInput

Specified by:

readUnsignedByte in interface RandomDataInput

Returns:

the unsigned 8-bit value read.

readFully

public void readFully(long offset,
             @NotNull
             byte[] byteArray,
             int off,
             int len)

Specified by:

readFully in interface RandomDataInput

write

public void write(long offset,
         byte[] byteArray,
         int off,
         int len)

Specified by:

write in interface RandomDataOutput

write

public void write(long offset,
         Bytes bytes)

Specified by:

write in interface RandomDataOutput