org.apache.flink.runtime.io.disk.iomanager

Class SynchronousBufferFileReader

java.lang.Object

org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

org.apache.flink.runtime.io.disk.iomanager.SynchronousFileIOChannel

org.apache.flink.runtime.io.disk.iomanager.SynchronousBufferFileReader

All Implemented Interfaces:

BufferFileReader, FileIOChannel

public class SynchronousBufferFileReader
extends SynchronousFileIOChannel
implements BufferFileReader

A synchronous BufferFileReader implementation.

This currently bypasses the I/O manager as it is the only synchronous implementation, which is currently in use.

TODO Refactor I/O manager setup and refactor this into it

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

FileIOChannel.Enumerator, FileIOChannel.ID

Field Summary

Fields inherited from class org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

fileChannel, id, LOG

Constructor Summary

Constructors

Constructor and Description
SynchronousBufferFileReader(FileIOChannel.ID channelID, boolean writeEnabled)

Method Summary

Modifier and Type	Method and Description
boolean	hasReachedEndOfFile()
void	readInto(Buffer buffer)
void	seekToPosition(long position)

Methods inherited from class org.apache.flink.runtime.io.disk.iomanager.SynchronousFileIOChannel

close, isClosed

Methods inherited from class org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

closeAndDelete, deleteChannel, getChannelID, getNioFileChannel, getSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

close, closeAndDelete, deleteChannel, getChannelID, getNioFileChannel, getSize, isClosed

Constructor Detail

SynchronousBufferFileReader

public SynchronousBufferFileReader(FileIOChannel.ID channelID,
                                   boolean writeEnabled)
                            throws IOException

Throws:

IOException

Method Detail

readInto

public void readInto(Buffer buffer)
              throws IOException

Specified by:

readInto in interface BufferFileReader

Throws:

IOException

seekToPosition

public void seekToPosition(long position)
                    throws IOException

Specified by:

seekToPosition in interface BufferFileReader

Throws:

IOException

hasReachedEndOfFile

public boolean hasReachedEndOfFile()

Specified by:

hasReachedEndOfFile in interface BufferFileReader