org.jgroups.blocks

Class ConnectionTableNIO

java.lang.Object

org.jgroups.blocks.BasicConnectionTable

org.jgroups.blocks.ConnectionTableNIO

All Implemented Interfaces:

java.lang.Runnable

public class ConnectionTableNIO
extends BasicConnectionTable
implements java.lang.Runnable

Manages incoming and outgoing TCP connections. For each outgoing message to destination P, if there is not yet a connection for P, one will be created. Subsequent outgoing messages will use this connection. For incoming messages, one server socket is created at startup. For each new incoming client connecting, a new thread from a thread pool is allocated and listens for incoming messages until the socket is closed by the peer.
Sockets/threads with no activity will be killed after some time.

Incoming messages from any of the sockets can be received by setting the message listener. We currently require use_incoming_packet_handler=true (release 2.4 will support use_incoming_packet_handler=false due to threadless stack support).

Author:

Bela Ban, Scott Marlow, Alex Fu

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ConnectionTableNIO.SelectorWriteHandler
static class	ConnectionTableNIO.WriteRequest

Nested classes/interfaces inherited from class org.jgroups.blocks.BasicConnectionTable

BasicConnectionTable.ConnectionListener, BasicConnectionTable.Receiver

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.commons.logging.Log	LOG

Fields inherited from class org.jgroups.blocks.BasicConnectionTable

log

Constructor Summary

Constructors

Constructor and Description
ConnectionTableNIO(BasicConnectionTable.Receiver r, java.net.InetAddress bind_addr, java.net.InetAddress external_addr, int srv_port, int max_port)
ConnectionTableNIO(BasicConnectionTable.Receiver r, java.net.InetAddress bind_addr, java.net.InetAddress external_addr, int srv_port, int max_port, boolean doStart)
ConnectionTableNIO(BasicConnectionTable.Receiver r, java.net.InetAddress bind_addr, java.net.InetAddress external_addr, int srv_port, int max_port, long reaper_interval, long conn_expire_time)
ConnectionTableNIO(BasicConnectionTable.Receiver r, java.net.InetAddress bind_addr, java.net.InetAddress external_addr, int srv_port, int max_port, long reaper_interval, long conn_expire_time, boolean doStart)
ConnectionTableNIO(int srv_port)
ConnectionTableNIO(int srv_port, long reaper_interval, long conn_expire_time)

Method Summary

Methods

Modifier and Type	Method and Description
protected java.net.ServerSocket	createServerSocket(int start_port, int end_port) Finds first available port starting at start_port and returns server socket.
int	getProcessorKeepAliveTime()
int	getProcessorMaxThreads()
int	getProcessorMinThreads()
int	getProcessorQueueSize()
int	getProcessorThreads()
int	getReaderThreads()
int	getWriterThreads()
protected void	init()
void	run() Acceptor thread.
protected void	runRequest(Address addr, java.nio.ByteBuffer buf)
void	setProcessorKeepAliveTime(int m_processor_keepAliveTime)
void	setProcessorMaxThreads(int m_processor_maxThreads)
void	setProcessorMinThreads(int m_processor_minThreads)
void	setProcessorQueueSize(int m_processor_queueSize)
void	setProcessorThreads(int m_processor_threads)
void	setReaderThreads(int m_reader_threads)
void	setWriterThreads(int m_writer_threads)
void	start()
void	stop() Closes all open sockets, the server socket and all threads waiting for incoming messages

Methods inherited from class org.jgroups.blocks.BasicConnectionTable

addConnectionListener, getLinger, getLocalAddress, getNumConnections, getReceiveBufferSize, getSendBufferSize, getSocketConnectionTimeout, getTcpNodelay, getUseSendQueues, receive, remove, removeConnectionListener, retainAll, send, setLinger, setReceiveBufferSize, setReceiver, setSendBufferSize, setSocketConnectionTimeout, setTcpNodelay, setUseSendQueues, toString

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.apache.commons.logging.Log LOG

Constructor Detail

ConnectionTableNIO

public ConnectionTableNIO(int srv_port)
                   throws java.lang.Exception

Parameters:

srv_port -

Throws:

java.lang.Exception

ConnectionTableNIO

public ConnectionTableNIO(int srv_port,
                  long reaper_interval,
                  long conn_expire_time)
                   throws java.lang.Exception

Parameters:

srv_port -

reaper_interval -

conn_expire_time -

Throws:

java.lang.Exception

ConnectionTableNIO

public ConnectionTableNIO(BasicConnectionTable.Receiver r,
                  java.net.InetAddress bind_addr,
                  java.net.InetAddress external_addr,
                  int srv_port,
                  int max_port)
                   throws java.lang.Exception

Parameters:

r -

bind_addr -

external_addr -

srv_port -

max_port -

Throws:

java.lang.Exception

ConnectionTableNIO

public ConnectionTableNIO(BasicConnectionTable.Receiver r,
                  java.net.InetAddress bind_addr,
                  java.net.InetAddress external_addr,
                  int srv_port,
                  int max_port,
                  boolean doStart)
                   throws java.lang.Exception

Throws:

java.lang.Exception

ConnectionTableNIO

public ConnectionTableNIO(BasicConnectionTable.Receiver r,
                  java.net.InetAddress bind_addr,
                  java.net.InetAddress external_addr,
                  int srv_port,
                  int max_port,
                  long reaper_interval,
                  long conn_expire_time)
                   throws java.lang.Exception

Parameters:

r -

bind_addr -

external_addr -

srv_port -

max_port -

reaper_interval -

conn_expire_time -

Throws:

java.lang.Exception

ConnectionTableNIO

public ConnectionTableNIO(BasicConnectionTable.Receiver r,
                  java.net.InetAddress bind_addr,
                  java.net.InetAddress external_addr,
                  int srv_port,
                  int max_port,
                  long reaper_interval,
                  long conn_expire_time,
                  boolean doStart)
                   throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getReaderThreads

public int getReaderThreads()

setReaderThreads

public void setReaderThreads(int m_reader_threads)

getWriterThreads

public int getWriterThreads()

setWriterThreads

public void setWriterThreads(int m_writer_threads)

getProcessorThreads

public int getProcessorThreads()

setProcessorThreads

public void setProcessorThreads(int m_processor_threads)

getProcessorMinThreads

public int getProcessorMinThreads()

setProcessorMinThreads

public void setProcessorMinThreads(int m_processor_minThreads)

getProcessorMaxThreads

public int getProcessorMaxThreads()

setProcessorMaxThreads

public void setProcessorMaxThreads(int m_processor_maxThreads)

getProcessorQueueSize

public int getProcessorQueueSize()

setProcessorQueueSize

public void setProcessorQueueSize(int m_processor_queueSize)

getProcessorKeepAliveTime

public int getProcessorKeepAliveTime()

setProcessorKeepAliveTime

public void setProcessorKeepAliveTime(int m_processor_keepAliveTime)

start

public final void start()
                 throws java.lang.Exception

Overrides:

start in class BasicConnectionTable

Throws:

java.lang.Exception

init

protected void init()
             throws java.lang.Exception

Throws:

java.lang.Exception

stop

public void stop()

Closes all open sockets, the server socket and all threads waiting for incoming messages

Overrides:

stop in class BasicConnectionTable

run

public void run()

Acceptor thread. Continuously accept new connections and assign readhandler/writehandler to them.

Specified by:

run in interface java.lang.Runnable

createServerSocket

protected java.net.ServerSocket createServerSocket(int start_port,
                                       int end_port)
                                            throws java.lang.Exception

Finds first available port starting at start_port and returns server socket. Sets srv_port

Throws:

java.lang.Exception

runRequest

protected void runRequest(Address addr,
              java.nio.ByteBuffer buf)
                   throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException