org.apache.activemq.transport.udp

Class CommandDatagramSocket

java.lang.Object

org.apache.activemq.transport.udp.CommandChannelSupport

org.apache.activemq.transport.udp.CommandDatagramSocket

All Implemented Interfaces:

Service, Replayer, CommandChannel

public class CommandDatagramSocket
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
CommandDatagramSocket(UdpTransport transport, OpenWireFormat wireFormat, int datagramSize, SocketAddress targetAddress, DatagramHeaderMarshaller headerMarshaller, DatagramSocket channel)

Method Summary

Modifier and Type	Method and Description
protected ByteArrayOutputStream	createByteArrayOutputStream()
protected DatagramPacket	createDatagramPacket()
int	getDatagramSize()
int	getReceiveCounter()
Command	read()
protected int	remaining(ByteArrayOutputStream buffer)
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, byte[] data, boolean redelivery)
protected void	sendWriteBuffer(SocketAddress address, ByteArrayOutputStream writeBuffer, int commandId)
void	setDatagramSize(int datagramSize) Sets the default size of a datagram on the network.
void	start()
void	stop()
void	write(Command command, SocketAddress address)

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

getHeaderMarshaller, getReplayAddress, getReplayBuffer, getTargetAddress, 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

CommandDatagramSocket

public CommandDatagramSocket(UdpTransport transport,
                             OpenWireFormat wireFormat,
                             int datagramSize,
                             SocketAddress targetAddress,
                             DatagramHeaderMarshaller headerMarshaller,
                             DatagramSocket channel)

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

getDatagramSize

public int getDatagramSize()

Specified by:

getDatagramSize in interface CommandChannel

Overrides:

getDatagramSize in class CommandChannelSupport

setDatagramSize

public void setDatagramSize(int datagramSize)

Description copied from class: CommandChannelSupport

Sets the default size of a datagram on the network.

Specified by:

setDatagramSize in interface CommandChannel

Overrides:

setDatagramSize in class CommandChannelSupport

sendWriteBuffer

protected void sendWriteBuffer(SocketAddress address,
                               ByteArrayOutputStream writeBuffer,
                               int commandId)
                        throws IOException

Throws:

IOException

sendWriteBuffer

protected void sendWriteBuffer(int commandId,
                               SocketAddress address,
                               byte[] data,
                               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

createDatagramPacket

protected DatagramPacket createDatagramPacket()

remaining

protected int remaining(ByteArrayOutputStream buffer)

createByteArrayOutputStream

protected ByteArrayOutputStream createByteArrayOutputStream()

getReceiveCounter

public int getReceiveCounter()