Package org.aksw.commons.io.util.channel

Class ReadableByteChannelFromInputStream

java.lang.Object

org.aksw.commons.io.util.channel.ReadableByteChannelFromInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, ReadableByteChannel

public class ReadableByteChannelFromInputStream
extends Object
implements ReadableByteChannel

A replacement for Channels.newChannel with the following changes for interoperability with hadoop and our GenericRecordReader: - Does not close the underlying stream on interrupt - This implementation's read method just delegates to the input stream (without additional buffering / repeated reads). This way hadoop's position advertising remains usable.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	buf
protected InputStream	in
protected boolean	open

Constructor Summary

Constructors

Constructor	Description
ReadableByteChannelFromInputStream(InputStream in)

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isOpen()
int	read(ByteBuffer dst)

Methods inherited from class java.lang.Object

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

Field Details

in

protected InputStream in

buf

protected byte[] buf

open

protected boolean open

Constructor Details

ReadableByteChannelFromInputStream

public ReadableByteChannelFromInputStream(InputStream in)

Method Details

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Throws:

IOException

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Specified by:

close in interface Closeable

Throws:

IOException