org.apache.cxf.ws.rm.soap
Class RetransmissionQueueImpl

java.lang.Object
  org.apache.cxf.ws.rm.soap.RetransmissionQueueImpl

All Implemented Interfaces:

RetransmissionQueue

public class RetransmissionQueueImpl
extends java.lang.Object
implements RetransmissionQueue

Nested Class Summary

protected class	RetransmissionQueueImpl.ResendCandidate Represents a candidate for resend, i.e.
static interface	RetransmissionQueueImpl.Resender Encapsulates actual resend logic (pluggable to facilitate unit testing)
protected class	RetransmissionQueueImpl.ResendInitiator Manages scheduling of resend attempts.

Field Summary

Fields inherited from interface org.apache.cxf.ws.rm.RetransmissionQueue

DEFAULT_BASE_RETRANSMISSION_INTERVAL, DEFAULT_EXPONENTIAL_BACKOFF

Constructor Summary

RetransmissionQueueImpl(RMManager m)

Method Summary

void	addUnacknowledged(org.apache.cxf.message.Message message) Accepts a new context for posible future retransmission.
protected RetransmissionQueueImpl.ResendCandidate	cacheUnacknowledged(org.apache.cxf.message.Message message) Accepts a new resend candidate.
int	countUnacknowledged(SourceSequence seq)
protected RetransmissionQueueImpl.ResendCandidate	createResendCandidate(org.apache.cxf.message.Message message)
long	getBaseRetransmissionInterval()
protected RetransmissionQueueImpl.Resender	getDefaultResender() Create default Resender logic.
protected int	getExponentialBackoff()
RMManager	getManager()
protected java.lang.Runnable	getResendInitiator()
protected java.util.List<RetransmissionQueueImpl.ResendCandidate>	getSequenceCandidates(SourceSequence seq)
protected java.util.List<RetransmissionQueueImpl.ResendCandidate>	getSequenceCandidates(java.lang.String key)
protected java.util.Map<java.lang.String,java.util.List<RetransmissionQueueImpl.ResendCandidate>>	getUnacknowledged()
boolean	isEmpty()
void	populate(java.util.Collection<SourceSequence> sss) Populates the retransmission queue with messages recovered from persistent store.
void	purgeAcknowledged(SourceSequence seq) Purge all candidates for the given sequence that have been acknowledged.
protected void	replaceResender(RetransmissionQueueImpl.Resender replacement) Plug in replacement resend logic (facilitates unit testing).
void	setBaseRetransmissionInterval(long baseRetransmissionInterval)
void	setExponentialBackoff(int exponentialBackoff)
void	setManager(RMManager m)
void	start() Initiate resends.
void	stop() Stops retransmission queue.

Methods inherited from class java.lang.Object

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

Constructor Detail

RetransmissionQueueImpl

public RetransmissionQueueImpl(RMManager m)

Method Detail

getManager

public RMManager getManager()

setManager

public void setManager(RMManager m)

getBaseRetransmissionInterval

public long getBaseRetransmissionInterval()

setBaseRetransmissionInterval

public void setBaseRetransmissionInterval(long baseRetransmissionInterval)

setExponentialBackoff

public void setExponentialBackoff(int exponentialBackoff)

addUnacknowledged

public void addUnacknowledged(org.apache.cxf.message.Message message)

Description copied from interface: RetransmissionQueue

Accepts a new context for posible future retransmission.

Specified by:

addUnacknowledged in interface RetransmissionQueue

countUnacknowledged

public int countUnacknowledged(SourceSequence seq)

Specified by:

countUnacknowledged in interface RetransmissionQueue

Parameters:

seq - the sequence under consideration

Returns:

the number of unacknowledged messages for that sequence

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface RetransmissionQueue

Returns:

true if there are no unacknowledged messages in the queue

populate

public void populate(java.util.Collection<SourceSequence> sss)

Description copied from interface: RetransmissionQueue

Populates the retransmission queue with messages recovered from persistent store.

Specified by:

populate in interface RetransmissionQueue

purgeAcknowledged

public void purgeAcknowledged(SourceSequence seq)

Purge all candidates for the given sequence that have been acknowledged.

Specified by:

purgeAcknowledged in interface RetransmissionQueue

Parameters:

seq - the sequence object.

start

public void start()

Initiate resends.

Specified by:

start in interface RetransmissionQueue

Parameters:

queue - the work queue providing async execution

stop

public void stop()

Stops retransmission queue.

Specified by:

stop in interface RetransmissionQueue

getExponentialBackoff

protected int getExponentialBackoff()

Returns:

the exponential backoff

getResendInitiator

protected java.lang.Runnable getResendInitiator()

Returns:

the ResendInitiator

createResendCandidate

protected RetransmissionQueueImpl.ResendCandidate createResendCandidate(org.apache.cxf.message.Message message)

Parameters:

message - the message context

Returns:

a ResendCandidate

cacheUnacknowledged

protected RetransmissionQueueImpl.ResendCandidate cacheUnacknowledged(org.apache.cxf.message.Message message)

Accepts a new resend candidate.

Parameters:

ctx - the message context.

Returns:

ResendCandidate

getUnacknowledged

protected java.util.Map<java.lang.String,java.util.List<RetransmissionQueueImpl.ResendCandidate>> getUnacknowledged()

Returns:

a map relating sequence ID to a lists of un-acknowledged messages for that sequence

getSequenceCandidates

protected java.util.List<RetransmissionQueueImpl.ResendCandidate> getSequenceCandidates(SourceSequence seq)

Parameters:

seq - the sequence under consideration

Returns:

the list of resend candidates for that sequence

getSequenceCandidates

protected java.util.List<RetransmissionQueueImpl.ResendCandidate> getSequenceCandidates(java.lang.String key)

Parameters:

key - the sequence identifier under consideration

Returns:

the list of resend candidates for that sequence

getDefaultResender

protected final RetransmissionQueueImpl.Resender getDefaultResender()

Create default Resender logic.

Returns:

default Resender

replaceResender

protected void replaceResender(RetransmissionQueueImpl.Resender replacement)

Plug in replacement resend logic (facilitates unit testing).

Parameters:

replacement - resend logic