org.apache.cassandra.streaming

Class StreamReader

java.lang.Object

org.apache.cassandra.streaming.StreamReader

Direct Known Subclasses:

CompressedStreamReader

public class StreamReader
extends java.lang.Object

StreamReader reads from stream and writes to SSTable.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StreamReader.StreamDeserializer

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.UUID	cfId
protected Descriptor	desc
protected long	estimatedKeys
protected SSTableFormat.Type	format
protected SerializationHeader.Component	header
protected Version	inputVersion
protected long	repairedAt
protected java.util.Collection<Pair<java.lang.Long,java.lang.Long>>	sections
protected StreamSession	session
protected int	sstableLevel

Constructor Summary

Constructors

Constructor and Description
StreamReader(FileMessageHeader header, StreamSession session)

Method Summary

Modifier and Type	Method and Description
protected SSTableMultiWriter	createWriter(ColumnFamilyStore cfs, long totalSize, long repairedAt, SSTableFormat.Type format)
protected void	drain(java.io.InputStream dis, long bytesRead)
SSTableMultiWriter	read(java.nio.channels.ReadableByteChannel channel)
protected long	totalSize()
protected void	writePartition(StreamReader.StreamDeserializer deserializer, SSTableMultiWriter writer, ColumnFamilyStore cfs)

Methods inherited from class java.lang.Object

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

Field Detail

cfId

protected final java.util.UUID cfId

estimatedKeys

protected final long estimatedKeys

sections

protected final java.util.Collection<Pair<java.lang.Long,java.lang.Long>> sections

session

protected final StreamSession session

inputVersion

protected final Version inputVersion

repairedAt

protected final long repairedAt

format

protected final SSTableFormat.Type format

sstableLevel

protected final int sstableLevel

header

protected final SerializationHeader.Component header

desc

protected Descriptor desc

Constructor Detail

StreamReader

public StreamReader(FileMessageHeader header,
                    StreamSession session)

Method Detail

read

public SSTableMultiWriter read(java.nio.channels.ReadableByteChannel channel)
                        throws java.io.IOException

Parameters:

channel - where this reads data from

Returns:

SSTable transferred

Throws:

java.io.IOException - if reading the remote sstable fails. Will throw an RTE if local write fails.

createWriter

protected SSTableMultiWriter createWriter(ColumnFamilyStore cfs,
                                          long totalSize,
                                          long repairedAt,
                                          SSTableFormat.Type format)
                                   throws java.io.IOException

Throws:

java.io.IOException

drain

protected void drain(java.io.InputStream dis,
                     long bytesRead)
              throws java.io.IOException

Throws:

java.io.IOException

totalSize

protected long totalSize()

writePartition

protected void writePartition(StreamReader.StreamDeserializer deserializer,
                              SSTableMultiWriter writer,
                              ColumnFamilyStore cfs)
                       throws java.io.IOException

Throws:

java.io.IOException