Package no.mnemonic.messaging.requestsink.jms

Class JMSRequestProxy

java.lang.Object

no.mnemonic.messaging.requestsink.jms.AbstractJMSRequestBase

no.mnemonic.messaging.requestsink.jms.JMSRequestProxy

All Implemented Interfaces:

javax.jms.ExceptionListener, no.mnemonic.commons.component.LifecycleAspect, no.mnemonic.commons.metrics.MetricAspect, no.mnemonic.commons.utilities.AppendMembers

public class JMSRequestProxy
extends AbstractJMSRequestBase
implements no.mnemonic.commons.metrics.MetricAspect

A JMSRequestProxy is the listener component handling messages sent from a JMSRequestSink, dispatching them to the configured RequestSink.

The JMSRequestProxy listens to messages on a JMS queue or topic, and will unpack the message, signal the downstream RequestSink, and handle any replies.

Each request will be run in a separate thread, and the maxConcurrentCalls parameter puts a limit on the maximum requests being handled. If more messages are sent to the JMS queue, these will not be consumed by the JMS Request Sink until a thread is available. This allows multiple JMSRequestProxies to share the load from a queue, and acts as a resource limitation.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JMSRequestProxy.Builder
static interface	JMSRequestProxy.JMSRequestProxyConnectionListener

Nested classes/interfaces inherited from class no.mnemonic.messaging.requestsink.jms.AbstractJMSRequestBase

AbstractJMSRequestBase.BaseBuilder<T extends AbstractJMSRequestBase.BaseBuilder>

Field Summary

Fields inherited from class no.mnemonic.messaging.requestsink.jms.AbstractJMSRequestBase

DEFAULT_MAX_MAX_MESSAGE_SIZE, DEFAULT_PRIORITY, MESSAGE_TYPE_CHANNEL_REQUEST, MESSAGE_TYPE_CHANNEL_SETUP, MESSAGE_TYPE_CLIENT_RESPONSE_ACKNOWLEDGEMENT, MESSAGE_TYPE_END_OF_FRAGMENTED_MESSAGE, MESSAGE_TYPE_EXCEPTION, MESSAGE_TYPE_EXTEND_WAIT, MESSAGE_TYPE_SIGNAL, MESSAGE_TYPE_SIGNAL_FRAGMENT, MESSAGE_TYPE_SIGNAL_RESPONSE, MESSAGE_TYPE_STREAM_CLOSED, PROPERTY_DATA_CHECKSUM_MD5, PROPERTY_FRAGMENTS_IDX, PROPERTY_FRAGMENTS_TOTAL, PROPERTY_MESSAGE_TYPE, PROPERTY_REQ_TIMEOUT, PROPERTY_RESPONSE_ID, PROPERTY_SEGMENT_WINDOW_SIZE, PROTOCOL_VERSION_KEY, SERIALIZER_KEY

Method Summary

Modifier and Type	Method	Description
void	addJMSRequestProxyConnectionListener(JMSRequestProxy.JMSRequestProxyConnectionListener listener)
static JMSRequestProxy.Builder	builder()
no.mnemonic.commons.metrics.Metrics	getMetrics()
void	onException(javax.jms.JMSException e)
void	startComponent()
void	stopComponent()

Methods inherited from class no.mnemonic.messaging.requestsink.jms.AbstractJMSRequestBase

appendMembers, createSession, toString

Methods inherited from class java.lang.Object

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

Method Details

getMetrics

public no.mnemonic.commons.metrics.Metrics getMetrics()
                                               throws no.mnemonic.commons.metrics.MetricException

Specified by:

getMetrics in interface no.mnemonic.commons.metrics.MetricAspect

Throws:

no.mnemonic.commons.metrics.MetricException

startComponent

public void startComponent()

Specified by:

startComponent in interface no.mnemonic.commons.component.LifecycleAspect

stopComponent

public void stopComponent()

Specified by:

stopComponent in interface no.mnemonic.commons.component.LifecycleAspect

onException

public void onException(javax.jms.JMSException e)

Specified by:

onException in interface javax.jms.ExceptionListener

addJMSRequestProxyConnectionListener

public void addJMSRequestProxyConnectionListener(JMSRequestProxy.JMSRequestProxyConnectionListener listener)

builder

public static JMSRequestProxy.Builder builder()