Package org.apache.activemq.state

Class ConnectionStateTracker

java.lang.Object

org.apache.activemq.state.CommandVisitorAdapter

org.apache.activemq.state.ConnectionStateTracker

All Implemented Interfaces:

CommandVisitor

public class ConnectionStateTracker
extends CommandVisitorAdapter

Tracks the state of a connection so a newly established transport can be re-initialized to the state that was tracked.

Field Summary

Fields

Modifier and Type	Field	Description
protected ConcurrentMap<ConnectionId,ConnectionState>	connectionStates

Constructor Summary

Constructors

Constructor	Description
ConnectionStateTracker()

Method Summary

Modifier and Type	Method	Description
void	connectionInterruptProcessingComplete(Transport transport, ConnectionId connectionId)
long	getCurrentCacheSize()
int	getMaxCacheSize()
boolean	isRestoreConsumers()
boolean	isRestoreProducers()
boolean	isRestoreSessions()
boolean	isRestoreTransaction()
boolean	isTrackMessages()
boolean	isTrackTransactionProducers()
boolean	isTrackTransactions()
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	processCommitTransactionOnePhase(TransactionInfo info)
Response	processCommitTransactionTwoPhase(TransactionInfo info)
Response	processEndTransaction(TransactionInfo info)
Response	processMessage(Message send)
Response	processMessagePull(MessagePull pull)
Response	processPrepareTransaction(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	processRollbackTransaction(TransactionInfo info)
void	restore(Transport transport)
protected void	restoreConsumers(Transport transport, SessionState sessionState)
protected void	restoreProducers(Transport transport, SessionState sessionState)
protected void	restoreSessions(Transport transport, ConnectionState connectionState)
protected void	restoreTempDestinations(Transport transport, ConnectionState connectionState)
void	setMaxCacheSize(int maxCacheSize)
void	setRestoreConsumers(boolean restoreConsumers)
void	setRestoreProducers(boolean restoreProducers)
void	setRestoreSessions(boolean restoreSessions)
void	setRestoreTransaction(boolean restoreTransaction)
void	setTrackMessages(boolean trackMessages)
void	setTrackTransactionProducers(boolean trackTransactionProducers)
void	setTrackTransactions(boolean trackTransactions)
Tracked	track(Command command)	Entry point for all tracked commands in the tracker.
void	trackBack(Command command)	Completes the two phase tracking operation for a command that is sent on the wire.
void	transportInterrupted(ConnectionId connectionId)

Methods inherited from class org.apache.activemq.state.CommandVisitorAdapter

processBrokerInfo, processBrokerSubscriptionInfo, processConnectionControl, processConnectionError, processConsumerControl, processControlCommand, processFlush, processForgetTransaction, processKeepAlive, processMessageAck, processMessageDispatch, processMessageDispatchNotification, processProducerAck, processRecoverTransactions, processRemoveSubscription, processShutdown, processWireFormat

Methods inherited from class java.lang.Object

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

Field Detail

connectionStates

protected final ConcurrentMap<ConnectionId,ConnectionState> connectionStates

Constructor Detail

ConnectionStateTracker

public ConnectionStateTracker()

Method Detail

track

public Tracked track(Command command)
              throws IOException

Entry point for all tracked commands in the tracker. Commands should be tracked before there is an attempt to send them on the wire. Upon a successful send of a command it is necessary to call the trackBack method to complete the tracking of the given command.

Parameters:

command - The command that is to be tracked by this tracker.

Returns:

null if the command is not state tracked.

Throws:

IOException - if an error occurs during setup of the tracking operation.

trackBack

public void trackBack(Command command)

Completes the two phase tracking operation for a command that is sent on the wire. Once the command is sent successfully to complete the tracking operation or otherwise update the state of the tracker.

Parameters:

command - The command that was previously provided to the track method.

restore

public void restore(Transport transport)
             throws IOException

Throws:

IOException

restoreSessions

protected void restoreSessions(Transport transport,
                               ConnectionState connectionState)
                        throws IOException

Parameters:

transport -

connectionState -

Throws:

IOException

restoreConsumers

protected void restoreConsumers(Transport transport,
                                SessionState sessionState)
                         throws IOException

Parameters:

transport -

sessionState -

Throws:

IOException

restoreProducers

protected void restoreProducers(Transport transport,
                                SessionState sessionState)
                         throws IOException

Parameters:

transport -

sessionState -

Throws:

IOException

restoreTempDestinations

protected void restoreTempDestinations(Transport transport,
                                       ConnectionState connectionState)
                                throws IOException

Parameters:

transport -

connectionState -

Throws:

IOException

processAddDestination

public Response processAddDestination(DestinationInfo info)

Specified by:

processAddDestination in interface CommandVisitor

Overrides:

processAddDestination in class CommandVisitorAdapter

processRemoveDestination

public Response processRemoveDestination(DestinationInfo info)

Specified by:

processRemoveDestination in interface CommandVisitor

Overrides:

processRemoveDestination in class CommandVisitorAdapter

processAddProducer

public Response processAddProducer(ProducerInfo info)

Specified by:

processAddProducer in interface CommandVisitor

Overrides:

processAddProducer in class CommandVisitorAdapter

processRemoveProducer

public Response processRemoveProducer(ProducerId id)

Specified by:

processRemoveProducer in interface CommandVisitor

Overrides:

processRemoveProducer in class CommandVisitorAdapter

processAddConsumer

public Response processAddConsumer(ConsumerInfo info)

Specified by:

processAddConsumer in interface CommandVisitor

Overrides:

processAddConsumer in class CommandVisitorAdapter

processRemoveConsumer

public Response processRemoveConsumer(ConsumerId id,
                                      long lastDeliveredSequenceId)

Specified by:

processRemoveConsumer in interface CommandVisitor

Overrides:

processRemoveConsumer in class CommandVisitorAdapter

processAddSession

public Response processAddSession(SessionInfo info)

Specified by:

processAddSession in interface CommandVisitor

Overrides:

processAddSession in class CommandVisitorAdapter

processRemoveSession

public Response processRemoveSession(SessionId id,
                                     long lastDeliveredSequenceId)

Specified by:

processRemoveSession in interface CommandVisitor

Overrides:

processRemoveSession in class CommandVisitorAdapter

processAddConnection

public Response processAddConnection(ConnectionInfo info)

Specified by:

processAddConnection in interface CommandVisitor

Overrides:

processAddConnection in class CommandVisitorAdapter

processRemoveConnection

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

Specified by:

processRemoveConnection in interface CommandVisitor

Overrides:

processRemoveConnection in class CommandVisitorAdapter

Throws:

Exception

processMessage

public Response processMessage(Message send)
                        throws Exception

Specified by:

processMessage in interface CommandVisitor

Overrides:

processMessage in class CommandVisitorAdapter

Throws:

Exception

processBeginTransaction

public Response processBeginTransaction(TransactionInfo info)

Specified by:

processBeginTransaction in interface CommandVisitor

Overrides:

processBeginTransaction in class CommandVisitorAdapter

processPrepareTransaction

public Response processPrepareTransaction(TransactionInfo info)
                                   throws Exception

Specified by:

processPrepareTransaction in interface CommandVisitor

Overrides:

processPrepareTransaction in class CommandVisitorAdapter

Throws:

Exception

processCommitTransactionOnePhase

public Response processCommitTransactionOnePhase(TransactionInfo info)
                                          throws Exception

Specified by:

processCommitTransactionOnePhase in interface CommandVisitor

Overrides:

processCommitTransactionOnePhase in class CommandVisitorAdapter

Throws:

Exception

processCommitTransactionTwoPhase

public Response processCommitTransactionTwoPhase(TransactionInfo info)
                                          throws Exception

Specified by:

processCommitTransactionTwoPhase in interface CommandVisitor

Overrides:

processCommitTransactionTwoPhase in class CommandVisitorAdapter

Throws:

Exception

processRollbackTransaction

public Response processRollbackTransaction(TransactionInfo info)
                                    throws Exception

Specified by:

processRollbackTransaction in interface CommandVisitor

Overrides:

processRollbackTransaction in class CommandVisitorAdapter

Throws:

Exception

processEndTransaction

public Response processEndTransaction(TransactionInfo info)
                               throws Exception

Specified by:

processEndTransaction in interface CommandVisitor

Overrides:

processEndTransaction in class CommandVisitorAdapter

Throws:

Exception

processMessagePull

public Response processMessagePull(MessagePull pull)
                            throws Exception

Specified by:

processMessagePull in interface CommandVisitor

Overrides:

processMessagePull in class CommandVisitorAdapter

Throws:

Exception

isRestoreConsumers

public boolean isRestoreConsumers()

setRestoreConsumers

public void setRestoreConsumers(boolean restoreConsumers)

isRestoreProducers

public boolean isRestoreProducers()

setRestoreProducers

public void setRestoreProducers(boolean restoreProducers)

isRestoreSessions

public boolean isRestoreSessions()

setRestoreSessions

public void setRestoreSessions(boolean restoreSessions)

isTrackTransactions

public boolean isTrackTransactions()

setTrackTransactions

public void setTrackTransactions(boolean trackTransactions)

isTrackTransactionProducers

public boolean isTrackTransactionProducers()

setTrackTransactionProducers

public void setTrackTransactionProducers(boolean trackTransactionProducers)

isRestoreTransaction

public boolean isRestoreTransaction()

setRestoreTransaction

public void setRestoreTransaction(boolean restoreTransaction)

isTrackMessages

public boolean isTrackMessages()

setTrackMessages

public void setTrackMessages(boolean trackMessages)

getMaxCacheSize

public int getMaxCacheSize()

setMaxCacheSize

public void setMaxCacheSize(int maxCacheSize)

getCurrentCacheSize

public long getCurrentCacheSize()

Returns:

the current cache size for the Message and MessagePull Command cache.

connectionInterruptProcessingComplete

public void connectionInterruptProcessingComplete(Transport transport,
                                                  ConnectionId connectionId)

transportInterrupted

public void transportInterrupted(ConnectionId connectionId)