Package org.apache.jena.riot.thrift

Class BinRDF

java.lang.Object

org.apache.jena.riot.thrift.BinRDF

public class BinRDF
extends java.lang.Object

Operations on binary RDF (which uses Apache Thrift). See also ThriftConvert, for specific functions on binary RDF.

See Also:

ThriftConvert

Constructor Summary

Constructors

Constructor	Description
BinRDF()

Method Summary

Modifier and Type	Method	Description
static void	apply(org.apache.thrift.protocol.TProtocol protocol, java.util.function.Consumer<RDF_StreamRow> action)	Send the contents of a RDF-encoded Thrift file to an "action"
static void	dump(java.io.OutputStream out, java.io.InputStream in)	Debug help - print details of a Thrift stream.
static void	fileToStream(java.lang.String filename, StreamRDF dest)	Decode the contents of the file and send to the StreamRDF.
static void	inputStreamToStream(java.io.InputStream in, StreamRDF dest)	Decode the contents of the input stream and send to the StreamRDF.
static void	protocolToStream(org.apache.thrift.protocol.TProtocol protocol, StreamRDF dest)	Decode the contents of the TProtocol and send to the StreamRDF.
static ResultSet	readResultSet(java.io.InputStream in)
static ResultSet	readResultSet(org.apache.thrift.protocol.TProtocol protocol)
static StreamRDF	streamToFile(java.lang.String filename)	Create an StreamRDF for output.
static StreamRDF	streamToFile(java.lang.String filename, boolean withValues)	Create an StreamRDF for output.
static StreamRDF	streamToOutputStream(java.io.OutputStream out)	Create an StreamRDF for output.
static StreamRDF	streamToOutputStream(java.io.OutputStream out, boolean withValues)	Create an StreamRDF for output.
static StreamRDF	streamToTProtocol(org.apache.thrift.protocol.TProtocol protocol)	Create an StreamRDF for output.
static StreamRDF	streamToTProtocol(org.apache.thrift.protocol.TProtocol protocol, boolean withValues)	Create an StreamRDF for output.
static void	writeResultSet(java.io.OutputStream out, ResultSet resultSet)
static void	writeResultSet(java.io.OutputStream out, ResultSet resultSet, boolean withValues)
static void	writeResultSet(org.apache.thrift.protocol.TProtocol protocol, ResultSet resultSet)
static void	writeResultSet(org.apache.thrift.protocol.TProtocol protocol, ResultSet resultSet, boolean encodeValues)

Methods inherited from class java.lang.Object

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

Constructor Detail

BinRDF

public BinRDF()

Method Detail

streamToFile

public static StreamRDF streamToFile(java.lang.String filename)

Create an StreamRDF for output. A filename ending .gz will have a gzip compressor added to the output path. A filename of "-" is System.out. The file is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

filename - The file

Returns:

StreamRDF A stream to send to.

streamToFile

public static StreamRDF streamToFile(java.lang.String filename,
                                     boolean withValues)

Create an StreamRDF for output. A filenames ending .gz or .bz2 will have the respective compressor added to the output path. A filename of "-" is System.out. The file is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

filename - The file

withValues - - whether to encode numeric values as values.

Returns:

StreamRDF A stream to send to.

streamToOutputStream

public static StreamRDF streamToOutputStream(java.io.OutputStream out)

Create an StreamRDF for output. The OutputStream is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

out - OutputStream

Returns:

StreamRDF A stream to send to.

streamToOutputStream

public static StreamRDF streamToOutputStream(java.io.OutputStream out,
                                             boolean withValues)

Create an StreamRDF for output. The OutputStream is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

out - OutputStream

withValues - - whether to encode numeric values as values.

Returns:

StreamRDF A stream to send to.

streamToTProtocol

public static StreamRDF streamToTProtocol(org.apache.thrift.protocol.TProtocol protocol)

Create an StreamRDF for output. The OutputStream is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

protocol - Output and encoding.

Returns:

StreamRDF A stream to send to.

streamToTProtocol

public static StreamRDF streamToTProtocol(org.apache.thrift.protocol.TProtocol protocol,
                                          boolean withValues)

Create an StreamRDF for output. The OutputStream is closed when StreamRDF.finish() is called unless it is System.out. Call StreamRDF.start()...StreamRDF.finish().

Parameters:

protocol - Output and encoding.

withValues - - whether to encode numeric values as values.

Returns:

StreamRDF A stream to send to.

fileToStream

public static void fileToStream(java.lang.String filename,
                                StreamRDF dest)

Decode the contents of the file and send to the StreamRDF. A filename ending .gz will have a gzip decompressor added. A filename of "-" is System.in.

Parameters:

filename - The file.

dest - Sink

inputStreamToStream

public static void inputStreamToStream(java.io.InputStream in,
                                       StreamRDF dest)

Decode the contents of the input stream and send to the StreamRDF.

Parameters:

in - InputStream

dest - StreamRDF

protocolToStream

public static void protocolToStream(org.apache.thrift.protocol.TProtocol protocol,
                                    StreamRDF dest)

Decode the contents of the TProtocol and send to the StreamRDF.

Parameters:

protocol - TProtocol

dest - Sink

apply

public static void apply(org.apache.thrift.protocol.TProtocol protocol,
                         java.util.function.Consumer<RDF_StreamRow> action)

Send the contents of a RDF-encoded Thrift file to an "action"

Parameters:

protocol - TProtocol

action - Code to act on the row.

dump

public static void dump(java.io.OutputStream out,
                        java.io.InputStream in)

Debug help - print details of a Thrift stream. Destructive on the InputStream.

Parameters:

out - OutputStream

in - InputStream

readResultSet

public static ResultSet readResultSet(java.io.InputStream in)

readResultSet

public static ResultSet readResultSet(org.apache.thrift.protocol.TProtocol protocol)

writeResultSet

public static void writeResultSet(java.io.OutputStream out,
                                  ResultSet resultSet)

writeResultSet

public static void writeResultSet(java.io.OutputStream out,
                                  ResultSet resultSet,
                                  boolean withValues)

writeResultSet

public static void writeResultSet(org.apache.thrift.protocol.TProtocol protocol,
                                  ResultSet resultSet)

writeResultSet

public static void writeResultSet(org.apache.thrift.protocol.TProtocol protocol,
                                  ResultSet resultSet,
                                  boolean encodeValues)