org.neo4j.com
Class BlockLogReader

java.lang.Object
  org.neo4j.com.BlockLogReader

All Implemented Interfaces:

Closeable, Channel, ReadableByteChannel

public class BlockLogReader
extends Object
implements ReadableByteChannel

The counterpart of BlockLogBuffer, sits on the receiving end and reads chunks of log. It is provided with a ChannelBuffer which feeds a series of chunks formatted as follows:

If the first byte is 0, then it is 256 bytes in total size (including the first byte) AND there are more coming.

If the first byte is not 0, then its value cast as an integer is the total size of the chunk AND there are no more - the stream is complete

Constructor Summary

BlockLogReader(org.jboss.netty.buffer.ChannelBuffer source)

Method Summary

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

Constructor Detail

BlockLogReader

public BlockLogReader(org.jboss.netty.buffer.ChannelBuffer source)

Method Detail

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface Channel

Throws:

IOException

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Throws:

IOException