org.minidns.dnslabel

Class DnsLabel

java.lang.Object

org.minidns.dnslabel.DnsLabel

All Implemented Interfaces:

java.lang.CharSequence

Direct Known Subclasses:

LdhLabel, NonLdhLabel

public abstract class DnsLabel
extends java.lang.Object
implements java.lang.CharSequence

A DNS label is an individual component of a DNS name. Labels are usually shown separated by dots.

See Also:

RFC 5890 § 2.2. DNS-Related Terminology

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DnsLabel.LabelToLongException

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	label
static int	MAX_LABEL_LENGTH_IN_OCTETS The maximum length of a DNS label in octets.
static boolean	VALIDATE Whether or not the DNS label is validated on construction.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DnsLabel(java.lang.String label)

Method Summary

Modifier and Type	Method and Description
DnsLabel	asLowercaseVariant()
char	charAt(int index)
boolean	equals(java.lang.Object other)
static DnsLabel	from(java.lang.String label)
static DnsLabel[]	from(java.lang.String[] labels)
java.lang.String	getInternationalizedRepresentation()
protected java.lang.String	getInternationalizedRepresentationInternal()
java.lang.String	getLabelType()
int	hashCode()
static boolean	isIdnAcePrefixed(java.lang.String string)
int	length()
java.lang.CharSequence	subSequence(int start, int end)
java.lang.String	toString()
void	writeToBoas(java.io.ByteArrayOutputStream byteArrayOutputStream)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.CharSequence

chars, codePoints

Field Detail

MAX_LABEL_LENGTH_IN_OCTETS

public static final int MAX_LABEL_LENGTH_IN_OCTETS

The maximum length of a DNS label in octets.

See Also:

RFC 1035 § 2.3.4., Constant Field Values

VALIDATE

public static boolean VALIDATE

Whether or not the DNS label is validated on construction.

label

public final java.lang.String label

Constructor Detail

DnsLabel

protected DnsLabel(java.lang.String label)

Method Detail

getInternationalizedRepresentation

public final java.lang.String getInternationalizedRepresentation()

getInternationalizedRepresentationInternal

protected java.lang.String getInternationalizedRepresentationInternal()

getLabelType

public final java.lang.String getLabelType()

length

public final int length()

Specified by:

length in interface java.lang.CharSequence

charAt

public final char charAt(int index)

Specified by:

charAt in interface java.lang.CharSequence

subSequence

public final java.lang.CharSequence subSequence(int start,
                                                int end)

Specified by:

subSequence in interface java.lang.CharSequence

toString

public final java.lang.String toString()

Specified by:

toString in interface java.lang.CharSequence

Overrides:

toString in class java.lang.Object

equals

public final boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

asLowercaseVariant

public final DnsLabel asLowercaseVariant()

writeToBoas

public final void writeToBoas(java.io.ByteArrayOutputStream byteArrayOutputStream)

from

public static DnsLabel from(java.lang.String label)

from

public static DnsLabel[] from(java.lang.String[] labels)

isIdnAcePrefixed

public static boolean isIdnAcePrefixed(java.lang.String string)