org.apache.activemq.transport.udp

Class CommandDatagramChannel

java.lang.Object

org.apache.activemq.transport.udp.CommandChannelSupport

org.apache.activemq.transport.udp.CommandDatagramChannel

All Implemented Interfaces:

Service, Replayer, CommandChannel

public class CommandDatagramChannel
extends CommandChannelSupport

A strategy for reading datagrams and de-fragmenting them together.

Field Summary

Fields inherited from class org.apache.activemq.transport.udp.CommandChannelSupport

datagramSize, headerMarshaller, name, replayAddress, sequenceGenerator, targetAddress, wireFormat

Constructor Summary

Constructors

Constructor and Description
CommandDatagramChannel(UdpTransport transport, OpenWireFormat wireFormat, int datagramSize, SocketAddress targetAddress, DatagramHeaderMarshaller headerMarshaller, DatagramChannel channel, ByteBufferPool bufferPool)

Method Summary

Modifier and Type	Method and Description
ByteBufferPool	getBufferPool()
int	getReceiveCounter()
Command	read()
void	sendBuffer(int commandId, Object buffer) Sends the given buffer back to the transport if the buffer could be found - otherwise maybe send some kind of exception
protected void	sendWriteBuffer(int commandId, SocketAddress address, ByteBuffer writeBuffer, boolean redelivery)
void	setBufferPool(ByteBufferPool bufferPool) Sets the implementation of the byte buffer pool to use
void	start()
void	stop()
void	write(Command command, SocketAddress address)

Methods inherited from class org.apache.activemq.transport.udp.CommandChannelSupport

getDatagramSize, getHeaderMarshaller, getReplayAddress, getReplayBuffer, getTargetAddress, setDatagramSize, setHeaderMarshaller, setReplayAddress, setReplayBuffer, setTargetAddress, toString, write

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandDatagramChannel

public CommandDatagramChannel(UdpTransport transport,
                              OpenWireFormat wireFormat,
                              int datagramSize,
                              SocketAddress targetAddress,
                              DatagramHeaderMarshaller headerMarshaller,
                              DatagramChannel channel,
                              ByteBufferPool bufferPool)

Method Detail

start

public void start()
           throws Exception

Throws:

Exception

stop

public void stop()
          throws Exception

Throws:

Exception

read

public Command read()
             throws IOException

Throws:

IOException

write

public void write(Command command,
                  SocketAddress address)
           throws IOException

Throws:

IOException

getBufferPool

public ByteBufferPool getBufferPool()

setBufferPool

public void setBufferPool(ByteBufferPool bufferPool)

Sets the implementation of the byte buffer pool to use

sendWriteBuffer

protected void sendWriteBuffer(int commandId,
                               SocketAddress address,
                               ByteBuffer writeBuffer,
                               boolean redelivery)
                        throws IOException

Throws:

IOException

sendBuffer

public void sendBuffer(int commandId,
                       Object buffer)
                throws IOException

Description copied from interface: Replayer

Sends the given buffer back to the transport if the buffer could be found - otherwise maybe send some kind of exception

Parameters:

commandId - the command ID

buffer - the buffer to be sent - or null if the buffer no longer exists in the buffer

Throws:

IOException

getReceiveCounter

public int getReceiveCounter()