org.apache.activemq.broker

Class TransportConnection

java.lang.Object

org.apache.activemq.broker.TransportConnection

All Implemented Interfaces:

Connection, Service, CommandVisitor, Task

Direct Known Subclasses:

ManagedTransportConnection

public class TransportConnection
extends Object
implements Connection, Task, CommandVisitor

Field Summary

Fields

Modifier and Type	Field and Description
protected Broker	broker
protected Map<ConnectionId,ConnectionState>	brokerConnectionStates
protected BrokerInfo	brokerInfo
protected TransportConnector	connector
protected List<Command>	dispatchQueue
protected AtomicBoolean	dispatchStopped
protected TaskRunner	taskRunner
protected AtomicReference<Throwable>	transportException

Constructor Summary

Constructors

Constructor and Description
TransportConnection(TransportConnector connector, Transport transport, Broker broker, TaskRunnerFactory taskRunnerFactory, TaskRunnerFactory stopTaskRunnerFactory)

Method Summary

Methods

Modifier and Type	Method and Description
void	delayedStop(int waitTime, String reason, Throwable cause)
protected void	dispatch(Command command)
void	dispatchAsync(Command message) Sends a message to the client.
void	dispatchSync(Command message) Sends a message to the client.
void	doMark() Mark the Connection, so we can deem if it's collectable on the next sweep
protected void	doStop()
int	getActiveTransactionCount() Returns the number of active transactions established on this Connection.
String	getConnectionId()
Connector	getConnector()
int	getDispatchQueueSize() Returns the number of messages to be dispatched to this connection
protected String	getDuplexNetworkConnectorId()
MessageAuthorizationPolicy	getMessageAuthorizationPolicy()
Long	getOldestActiveTransactionDuration() Returns the number of active transactions established on this Connection.
ProducerBrokerExchange	getProducerBrokerExchangeIfExists(ProducerInfo producerInfo)
int	getProtocolVersion()
String	getRemoteAddress()
WireFormatInfo	getRemoteWireFormatInfo()
ConnectionStatistics	getStatistics() Returns the statistics for this connection
protected CountDownLatch	getStopped()
Transport	getTransport()
boolean	isActive()
boolean	isBlocked()
boolean	isBlockedCandidate()
boolean	isConnected()
boolean	isFaultTolerantConnection()
boolean	isManageable()
boolean	isMarkedBlockedCandidate()
boolean	isMarkedCandidate()
boolean	isNetworkConnection() return true if a network connection
boolean	isPendingStop()
boolean	isSlow()
boolean	isStarting()
boolean	isStopping()
boolean	iterate()
protected List<TransportConnectionState>	listConnectionStates()
TransportConnectionState	lookupConnectionState(ConnectionId connectionId)
protected TransportConnectionState	lookupConnectionState(ConsumerId id)
protected TransportConnectionState	lookupConnectionState(ProducerId id)
protected TransportConnectionState	lookupConnectionState(SessionId id)
protected TransportConnectionState	lookupConnectionState(String connectionId)
Response	processAddConnection(ConnectionInfo info)
Response	processAddConsumer(ConsumerInfo info)
Response	processAddDestination(DestinationInfo info)
Response	processAddProducer(ProducerInfo info)
Response	processAddSession(SessionInfo info)
Response	processBeginTransaction(TransactionInfo info)
Response	processBrokerInfo(BrokerInfo info)
Response	processCommitTransactionOnePhase(TransactionInfo info)
Response	processCommitTransactionTwoPhase(TransactionInfo info)
Response	processConnectionControl(ConnectionControl control)
Response	processConnectionError(ConnectionError error)
Response	processConsumerControl(ConsumerControl control)
Response	processControlCommand(ControlCommand command)
protected void	processDispatch(Command command)
Response	processEndTransaction(TransactionInfo info)
Response	processFlush(FlushCommand command)
Response	processForgetTransaction(TransactionInfo info)
Response	processKeepAlive(KeepAliveInfo info)
Response	processMessage(Message messageSend)
Response	processMessageAck(MessageAck ack)
Response	processMessageDispatch(MessageDispatch dispatch)
Response	processMessageDispatchNotification(MessageDispatchNotification notification)
Response	processMessagePull(MessagePull pull)
Response	processPrepareTransaction(TransactionInfo info)
Response	processProducerAck(ProducerAck ack)
Response	processRecoverTransactions(TransactionInfo info)
Response	processRemoveConnection(ConnectionId id, long lastDeliveredSequenceId)
Response	processRemoveConsumer(ConsumerId id, long lastDeliveredSequenceId)
Response	processRemoveDestination(DestinationInfo info)
Response	processRemoveProducer(ProducerId id)
Response	processRemoveSession(SessionId id, long lastDeliveredSequenceId)
Response	processRemoveSubscription(RemoveSubscriptionInfo info)
Response	processRollbackTransaction(TransactionInfo info)
Response	processShutdown(ShutdownInfo info)
Response	processWireFormat(WireFormatInfo info)
protected TransportConnectionState	registerConnectionState(ConnectionId connectionId, TransportConnectionState state)
Response	service(Command command) Services a client command and submits it to the broker.
void	serviceException(Throwable e) Closes a clients connection due to a detected error.
void	serviceExceptionAsync(IOException e) Calls the serviceException method in an async thread.
void	serviceTransportException(IOException e)
void	setActive(boolean active)
void	setBlocked(boolean blocked)
void	setBlockedCandidate(boolean blockedCandidate)
void	setConnected(boolean connected)
protected void	setDuplexNetworkConnectorId(String duplexNetworkConnectorId)
void	setMarkedCandidate(boolean markedCandidate)
void	setMessageAuthorizationPolicy(MessageAuthorizationPolicy messageAuthorizationPolicy)
protected void	setPendingStop(boolean pendingStop)
void	setSlow(boolean slow)
protected void	setStarting(boolean starting)
void	start()
void	stop()
void	stopAsync()
void	stopAsync(Throwable cause)
String	toString()
protected TransportConnectionState	unregisterConnectionState(ConnectionId connectionId)
void	updateClient(ConnectionControl control)

Methods inherited from class java.lang.Object

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

Field Detail

broker

protected final Broker broker

connector

protected final TransportConnector connector

brokerConnectionStates

protected final Map<ConnectionId,ConnectionState> brokerConnectionStates

brokerInfo

protected BrokerInfo brokerInfo

dispatchQueue

protected final List<Command> dispatchQueue

taskRunner

protected TaskRunner taskRunner

transportException

protected final AtomicReference<Throwable> transportException

dispatchStopped

protected AtomicBoolean dispatchStopped

Constructor Detail

TransportConnection

public TransportConnection(TransportConnector connector,
                   Transport transport,
                   Broker broker,
                   TaskRunnerFactory taskRunnerFactory,
                   TaskRunnerFactory stopTaskRunnerFactory)

Parameters:

taskRunnerFactory - - can be null if you want direct dispatch to the transport else commands are sent async.

stopTaskRunnerFactory - - can not be null, used for stopping this connection.

Method Detail

getDispatchQueueSize

public int getDispatchQueueSize()

Returns the number of messages to be dispatched to this connection

Specified by:

getDispatchQueueSize in interface Connection

Returns:

size of dispatch queue

serviceTransportException

public void serviceTransportException(IOException e)

serviceExceptionAsync

public void serviceExceptionAsync(IOException e)

Calls the serviceException method in an async thread. Since handling a service exception closes a socket, we should not tie up broker threads since client sockets may hang or cause deadlocks.

Specified by:

serviceExceptionAsync in interface Connection

serviceException

public void serviceException(Throwable e)

Closes a clients connection due to a detected error. Errors are ignored if: the client is closing or broker is closing. Otherwise, the connection error transmitted to the client before stopping it's transport.

Specified by:

serviceException in interface Connection

service

public Response service(Command command)

Description copied from interface: Connection

Services a client command and submits it to the broker.

Specified by:

service in interface Connection

Returns:

Response

processKeepAlive

public Response processKeepAlive(KeepAliveInfo info)
                          throws Exception

Specified by:

processKeepAlive in interface CommandVisitor

Throws:

Exception

processRemoveSubscription

public Response processRemoveSubscription(RemoveSubscriptionInfo info)
                                   throws Exception

Specified by:

processRemoveSubscription in interface CommandVisitor

Throws:

Exception

processWireFormat

public Response processWireFormat(WireFormatInfo info)
                           throws Exception

Specified by:

processWireFormat in interface CommandVisitor

Throws:

Exception

processShutdown

public Response processShutdown(ShutdownInfo info)
                         throws Exception

Specified by:

processShutdown in interface CommandVisitor

Throws:

Exception

processFlush

public Response processFlush(FlushCommand command)
                      throws Exception

Specified by:

processFlush in interface CommandVisitor

Throws:

Exception

processBeginTransaction

public Response processBeginTransaction(TransactionInfo info)
                                 throws Exception

Specified by:

processBeginTransaction in interface CommandVisitor

Throws:

Exception

getActiveTransactionCount

public int getActiveTransactionCount()

Description copied from interface: Connection

Returns the number of active transactions established on this Connection.

Specified by:

getActiveTransactionCount in interface Connection

Returns:

the number of active transactions established on this Connection..

getOldestActiveTransactionDuration

public Long getOldestActiveTransactionDuration()

Description copied from interface: Connection

Returns the number of active transactions established on this Connection.

Specified by:

getOldestActiveTransactionDuration in interface Connection

Returns:

the number of active transactions established on this Connection..

processEndTransaction

public Response processEndTransaction(TransactionInfo info)
                               throws Exception

Specified by:

processEndTransaction in interface CommandVisitor

Throws:

Exception

processPrepareTransaction

public Response processPrepareTransaction(TransactionInfo info)
                                   throws Exception

Specified by:

processPrepareTransaction in interface CommandVisitor

Throws:

Exception

processCommitTransactionOnePhase

public Response processCommitTransactionOnePhase(TransactionInfo info)
                                          throws Exception

Specified by:

processCommitTransactionOnePhase in interface CommandVisitor

Throws:

Exception

processCommitTransactionTwoPhase

public Response processCommitTransactionTwoPhase(TransactionInfo info)
                                          throws Exception

Specified by:

processCommitTransactionTwoPhase in interface CommandVisitor

Throws:

Exception

processRollbackTransaction

public Response processRollbackTransaction(TransactionInfo info)
                                    throws Exception

Specified by:

processRollbackTransaction in interface CommandVisitor

Throws:

Exception

processForgetTransaction

public Response processForgetTransaction(TransactionInfo info)
                                  throws Exception

Specified by:

processForgetTransaction in interface CommandVisitor

Throws:

Exception

processRecoverTransactions

public Response processRecoverTransactions(TransactionInfo info)
                                    throws Exception

Specified by:

processRecoverTransactions in interface CommandVisitor

Throws:

Exception

processMessage

public Response processMessage(Message messageSend)
                        throws Exception

Specified by:

processMessage in interface CommandVisitor

Throws:

Exception

processMessageAck

public Response processMessageAck(MessageAck ack)
                           throws Exception

Specified by:

processMessageAck in interface CommandVisitor

Throws:

Exception

processMessagePull

public Response processMessagePull(MessagePull pull)
                            throws Exception

Specified by:

processMessagePull in interface CommandVisitor

Throws:

Exception

processMessageDispatchNotification

public Response processMessageDispatchNotification(MessageDispatchNotification notification)
                                            throws Exception

Specified by:

processMessageDispatchNotification in interface CommandVisitor

Throws:

Exception

processAddDestination

public Response processAddDestination(DestinationInfo info)
                               throws Exception

Specified by:

processAddDestination in interface CommandVisitor

Throws:

Exception

processRemoveDestination

public Response processRemoveDestination(DestinationInfo info)
                                  throws Exception

Specified by:

processRemoveDestination in interface CommandVisitor

Throws:

Exception

processAddProducer

public Response processAddProducer(ProducerInfo info)
                            throws Exception

Specified by:

processAddProducer in interface CommandVisitor

Throws:

Exception

processRemoveProducer

public Response processRemoveProducer(ProducerId id)
                               throws Exception

Specified by:

processRemoveProducer in interface CommandVisitor

Throws:

Exception

processAddConsumer

public Response processAddConsumer(ConsumerInfo info)
                            throws Exception

Specified by:

processAddConsumer in interface CommandVisitor

Throws:

Exception

processRemoveConsumer

public Response processRemoveConsumer(ConsumerId id,
                             long lastDeliveredSequenceId)
                               throws Exception

Specified by:

processRemoveConsumer in interface CommandVisitor

Throws:

Exception

processAddSession

public Response processAddSession(SessionInfo info)
                           throws Exception

Specified by:

processAddSession in interface CommandVisitor

Throws:

Exception

processRemoveSession

public Response processRemoveSession(SessionId id,
                            long lastDeliveredSequenceId)
                              throws Exception

Specified by:

processRemoveSession in interface CommandVisitor

Throws:

Exception

processAddConnection

public Response processAddConnection(ConnectionInfo info)
                              throws Exception

Specified by:

processAddConnection in interface CommandVisitor

Throws:

Exception

processRemoveConnection

public Response processRemoveConnection(ConnectionId id,
                               long lastDeliveredSequenceId)
                                 throws InterruptedException

Specified by:

processRemoveConnection in interface CommandVisitor

Throws:

InterruptedException

processProducerAck

public Response processProducerAck(ProducerAck ack)
                            throws Exception

Specified by:

processProducerAck in interface CommandVisitor

Throws:

Exception

getConnector

public Connector getConnector()

Specified by:

getConnector in interface Connection

Returns:

the connector that created this connection.

dispatchSync

public void dispatchSync(Command message)

Description copied from interface: Connection

Sends a message to the client.

Specified by:

dispatchSync in interface Connection

Parameters:

message - the message to send to the client.

dispatchAsync

public void dispatchAsync(Command message)

Description copied from interface: Connection

Sends a message to the client.

Specified by:

dispatchAsync in interface Connection

processDispatch

protected void processDispatch(Command command)
                        throws IOException

Throws:

IOException

iterate

public boolean iterate()

Specified by:

iterate in interface Task

getStatistics

public ConnectionStatistics getStatistics()

Returns the statistics for this connection

Specified by:

getStatistics in interface Connection

getMessageAuthorizationPolicy

public MessageAuthorizationPolicy getMessageAuthorizationPolicy()

setMessageAuthorizationPolicy

public void setMessageAuthorizationPolicy(MessageAuthorizationPolicy messageAuthorizationPolicy)

isManageable

public boolean isManageable()

Specified by:

isManageable in interface Connection

Returns:

true if the Connection will process control commands

start

public void start()
           throws Exception

Specified by:

start in interface Service

Throws:

Exception

stop

public void stop()
          throws Exception

Specified by:

stop in interface Service

Throws:

Exception

delayedStop

public void delayedStop(int waitTime,
               String reason,
               Throwable cause)

stopAsync

public void stopAsync(Throwable cause)

stopAsync

public void stopAsync()

toString

public String toString()

Overrides:

toString in class Object

doStop

protected void doStop()
               throws Exception

Throws:

Exception

isBlockedCandidate

public boolean isBlockedCandidate()

Returns:

Returns the blockedCandidate.

setBlockedCandidate

public void setBlockedCandidate(boolean blockedCandidate)

Parameters:

blockedCandidate - The blockedCandidate to set.

isMarkedCandidate

public boolean isMarkedCandidate()

Returns:

Returns the markedCandidate.

setMarkedCandidate

public void setMarkedCandidate(boolean markedCandidate)

Parameters:

markedCandidate - The markedCandidate to set.

setSlow

public void setSlow(boolean slow)

Parameters:

slow - The slow to set.

isSlow

public boolean isSlow()

Specified by:

isSlow in interface Connection

Returns:

true if the Connection is slow

isMarkedBlockedCandidate

public boolean isMarkedBlockedCandidate()

Returns:

true if the Connection is potentially blocked

doMark

public void doMark()

Mark the Connection, so we can deem if it's collectable on the next sweep

isBlocked

public boolean isBlocked()

Specified by:

isBlocked in interface Connection

Returns:

if after being marked, the Connection is still writing

isConnected

public boolean isConnected()

Specified by:

isConnected in interface Connection

Returns:

true if the Connection is connected

setBlocked

public void setBlocked(boolean blocked)

Parameters:

blocked - The blocked to set.

setConnected

public void setConnected(boolean connected)

Parameters:

connected - The connected to set.

isActive

public boolean isActive()

Specified by:

isActive in interface Connection

Returns:

true if the Connection is active

setActive

public void setActive(boolean active)

Parameters:

active - The active to set.

isStarting

public boolean isStarting()

Returns:

true if the Connection is starting

isNetworkConnection

public boolean isNetworkConnection()

Description copied from interface: Connection

return true if a network connection

Specified by:

isNetworkConnection in interface Connection

Returns:

isFaultTolerantConnection

public boolean isFaultTolerantConnection()

Specified by:

isFaultTolerantConnection in interface Connection

Returns:

true if a fault tolerant connection

setStarting

protected void setStarting(boolean starting)

isPendingStop

public boolean isPendingStop()

Returns:

true if the Connection needs to stop

setPendingStop

protected void setPendingStop(boolean pendingStop)

processBrokerInfo

public Response processBrokerInfo(BrokerInfo info)

Specified by:

processBrokerInfo in interface CommandVisitor

dispatch

protected void dispatch(Command command)
                 throws IOException

Throws:

IOException

getRemoteAddress

public String getRemoteAddress()

Specified by:

getRemoteAddress in interface Connection

Returns:

the source address for this connection

getTransport

public Transport getTransport()

getConnectionId

public String getConnectionId()

Specified by:

getConnectionId in interface Connection

updateClient

public void updateClient(ConnectionControl control)

Specified by:

updateClient in interface Connection

getProducerBrokerExchangeIfExists

public ProducerBrokerExchange getProducerBrokerExchangeIfExists(ProducerInfo producerInfo)

getProtocolVersion

public int getProtocolVersion()

processControlCommand

public Response processControlCommand(ControlCommand command)
                               throws Exception

Specified by:

processControlCommand in interface CommandVisitor

Throws:

Exception

processMessageDispatch

public Response processMessageDispatch(MessageDispatch dispatch)
                                throws Exception

Specified by:

processMessageDispatch in interface CommandVisitor

Throws:

Exception

processConnectionControl

public Response processConnectionControl(ConnectionControl control)
                                  throws Exception

Specified by:

processConnectionControl in interface CommandVisitor

Throws:

Exception

processConnectionError

public Response processConnectionError(ConnectionError error)
                                throws Exception

Specified by:

processConnectionError in interface CommandVisitor

Throws:

Exception

processConsumerControl

public Response processConsumerControl(ConsumerControl control)
                                throws Exception

Specified by:

processConsumerControl in interface CommandVisitor

Throws:

Exception

registerConnectionState

protected TransportConnectionState registerConnectionState(ConnectionId connectionId,
                                               TransportConnectionState state)

unregisterConnectionState

protected TransportConnectionState unregisterConnectionState(ConnectionId connectionId)

listConnectionStates

protected List<TransportConnectionState> listConnectionStates()

lookupConnectionState

protected TransportConnectionState lookupConnectionState(String connectionId)

lookupConnectionState

protected TransportConnectionState lookupConnectionState(ConsumerId id)

lookupConnectionState

protected TransportConnectionState lookupConnectionState(ProducerId id)

lookupConnectionState

protected TransportConnectionState lookupConnectionState(SessionId id)

lookupConnectionState

public TransportConnectionState lookupConnectionState(ConnectionId connectionId)

setDuplexNetworkConnectorId

protected void setDuplexNetworkConnectorId(String duplexNetworkConnectorId)

getDuplexNetworkConnectorId

protected String getDuplexNetworkConnectorId()

isStopping

public boolean isStopping()

getStopped

protected CountDownLatch getStopped()

getRemoteWireFormatInfo

public WireFormatInfo getRemoteWireFormatInfo()