Package org.jgroups.protocols
Class TCP
- java.lang.Object
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- org.jgroups.stack.Protocol
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- org.jgroups.protocols.TP
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- org.jgroups.protocols.BasicTCP
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- org.jgroups.protocols.TCP
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- All Implemented Interfaces:
BasicConnectionTable.Receiver
public class TCP extends BasicTCP implements BasicConnectionTable.Receiver
TCP based protocol. Creates a server socket, which gives us the local address of this group member. For each accept() on the server socket, a new thread is created that listens on the socket. For each outgoing message m, if m.dest is in the ougoing hashtable, the associated socket will be reused to send message, otherwise a new socket is created and put in the hashtable. When a socket connection breaks or a member is removed from the group, the corresponding items in the incoming and outgoing hashtables will be removed as well.
This functionality is in ConnectionTable, which isT used by TCP. TCP sends messages using ct.send() and registers with the connection table to receive all incoming messages.- Author:
- Bela Ban
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Nested Class Summary
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Nested classes/interfaces inherited from class org.jgroups.protocols.TP
TP.ProbeHandler, TP.ProtocolAdapter
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Field Summary
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Fields inherited from class org.jgroups.protocols.BasicTCP
conn_expire_time, end_port, external_addr, reaper_interval, start_port
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Fields inherited from class org.jgroups.protocols.TP
bind_addr, channel_name, discard_incompatible_packets, global_thread_factory, local_addr, members, persistent_ports, persistent_ports_file, pm, pm_expiry_time, thread_naming_pattern, timer, timer_thread_factory, view
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Constructor Summary
Constructors Constructor Description TCP()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected ConnectionTable
getConnectionTable(long reaperInterval, long connExpireTime, java.net.InetAddress bindAddress, java.net.InetAddress externalAddress, int startPort, int endPort, PortsManager pm)
java.lang.String
getName()
int
getOpenConnections()
java.lang.String
printConnections()
void
retainAll(java.util.Collection<Address> members)
void
send(Address dest, byte[] data, int offset, int length)
boolean
setProperties(java.util.Properties props)
Setup the Protocol instance acording to the configuration stringvoid
start()
Creates the unicast and multicast sockets and starts the unicast and multicast receiver threadsvoid
stop()
This method is called on aChannel.disconnect()
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Methods inherited from class org.jgroups.protocols.BasicTCP
getConnExpireTime, getEndPort, getInfo, getReaperInterval, getStartPort, handleDownEvent, init, postUnmarshalling, postUnmarshallingList, receive, sendToAllMembers, sendToSingleMember, setConnExpireTime, setEndPort, setReaperInterval, setStartPort
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Methods inherited from class org.jgroups.protocols.TP
createThreadPool, destroy, down, dumpStats, getBindAddress, getBindPort, getBindToAllInterfaces, getChannelName, getDefaultThreadPool, getDefaultThreadPoolThreadFactory, getIncomingKeepAliveTime, getIncomingMaxPoolSize, getIncomingMaxQueueSize, getIncomingMessages, getIncomingMinPoolSize, getIncomingPoolSize, getIncomingQueueSize, getLocalAddress, getMaxBundleSize, getMaxBundleTimeout, getNumBytesReceived, getNumBytesSent, getNumMessagesReceived, getNumMessagesSent, getOOBKeepAliveTime, getOOBMaxPoolSize, getOOBMaxQueueSize, getOOBMessages, getOOBMinPoolSize, getOOBPoolSize, getOOBQueueSize, getOOBThreadPool, getOOBThreadPoolThreadFactory, getReceiveInterfaces, getSendInterfaces, getSingletonName, getThreadFactory, getThreadNamingPattern, getTimer, getTimerThreadFactory, getUpProtocols, handleConfigEvent, handleConnect, handleDisconnect, isDefaulThreadPoolEnabled, isDiscardIncompatiblePackets, isEnable_unicast_bundling, isEnableBundling, isLoopback, isOOBThreadPoolEnabled, isReceiveOnAllInterfaces, isSendOnAllInterfaces, isUseIncomingPacketHandler, passToAllUpProtocols, receive, registerProbeHandler, resetStats, sendUpLocalAddressEvent, setBindAddress, setBindPort, setBindToAllInterfaces, setDefaultThreadPool, setDefaultThreadPoolThreadFactory, setDiscardIncompatiblePackets, setEnable_unicast_bundling, setEnableBundling, setIncomingKeepAliveTime, setIncomingMaxPoolSize, setIncomingMinPoolSize, setLoopback, setMaxBundleSize, setMaxBundleTimeout, setOOBKeepAliveTime, setOOBMaxPoolSize, setOOBMinPoolSize, setOOBThreadPool, setOOBThreadPoolThreadFactory, setThreadFactory, setThreadNames, setTimerThreadFactory, toString, unregisterProbeHandler, unsetThreadNames, up
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Methods inherited from class org.jgroups.stack.Protocol
downThreadEnabled, enableStats, getDownProtocol, getProperties, getProtocolStack, getTransport, getUpProtocol, printStats, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, setDownProtocol, setPropertiesInternal, setProtocolStack, setUpProtocol, statsEnabled, upThreadEnabled
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.jgroups.blocks.BasicConnectionTable.Receiver
receive
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Method Detail
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getOpenConnections
public int getOpenConnections()
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printConnections
public java.lang.String printConnections()
- Specified by:
printConnections
in classBasicTCP
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setProperties
public boolean setProperties(java.util.Properties props)
Setup the Protocol instance acording to the configuration string- Overrides:
setProperties
in classBasicTCP
- Returns:
- true if no other properties are left. false if the properties still have data in them, ie , properties are left over and not handled by the protocol stack
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send
public void send(Address dest, byte[] data, int offset, int length) throws java.lang.Exception
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retainAll
public void retainAll(java.util.Collection<Address> members)
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start
public void start() throws java.lang.Exception
Description copied from class:TP
Creates the unicast and multicast sockets and starts the unicast and multicast receiver threads- Overrides:
start
in classTP
- Throws:
java.lang.Exception
- Thrown if protocol cannot be started successfully. This will cause the ProtocolStack to fail, soChannel.connect(String)
will throw an exception
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stop
public void stop()
Description copied from class:Protocol
This method is called on aChannel.disconnect()
. Stops work (e.g. by closing multicast socket). Will be called from top to bottom. This means that at the time of the method invocation the neighbor protocol below is still working. This method will replace the STOP, STOP_OK, CLEANUP and CLEANUP_OK events. The ProtocolStack guarantees that when this method is called all messages in the down queue will have been flushed
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getConnectionTable
protected ConnectionTable getConnectionTable(long reaperInterval, long connExpireTime, java.net.InetAddress bindAddress, java.net.InetAddress externalAddress, int startPort, int endPort, PortsManager pm) throws java.lang.Exception
- Parameters:
reaperInterval
-connExpireTime
-bindAddress
-startPort
-- Returns:
- ConnectionTable Sub classes overrides this method to initialize a different version of ConnectionTable.
- Throws:
java.lang.Exception
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