Package org.gridgain.internal.snapshots.buffer

Class ChecksumChannel

java.lang.Object

org.gridgain.internal.snapshots.buffer.ChecksumChannel

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, WritableByteChannel

public class ChecksumChannel
extends Object
implements WritableByteChannel

Delegates writes to a channel and appends a checksum value before closing.

Computes a checksum incrementally, updating only for bytes actually written to the delegate.

Constructor Summary

Constructors

Constructor	Description
ChecksumChannel(WritableByteChannel channel, Checksum checksum, ByteOrder byteOrder)	Creates a new checksum channel.

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isOpen()
int	write(ByteBuffer src)

Methods inherited from class java.lang.Object

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

Constructor Details

ChecksumChannel

public ChecksumChannel(WritableByteChannel channel,
 Checksum checksum,
 ByteOrder byteOrder)

Creates a new checksum channel.

Parameters:

channel - The delegate channel to write to.

checksum - The checksum algorithm to use.

byteOrder - The byte order for writing the checksum value.

Method Details

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface WritableByteChannel

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