Author: buildbot
Date: Thu Apr 21 20:21:33 2016
New Revision: 986277
Log:
Production update by buildbot for camel
Modified:
websites/production/camel/content/book-in-one-page.html
websites/production/camel/content/book-languages-appendix.html
websites/production/camel/content/cache/main.pageCache
websites/production/camel/content/simple.html
Modified: websites/production/camel/content/book-in-one-page.html
==============================================================================
--- websites/production/camel/content/book-in-one-page.html (original)
+++ websites/production/camel/content/book-in-one-page.html Thu Apr 21 20:21:33
2016
@@ -122,7 +122,7 @@ ConnectionFactory connectionFactory = ne
// Note we can explicit name the component
context.addComponent("test-jms",
JmsComponent.jmsComponentAutoAcknowledge(connectionFactory));
]]></script>
-</div></div><p>The above works with any JMS provider. If we know we are using
<a shape="rect" href="activemq.html">ActiveMQ</a> we can use an even simpler
form using the <a shape="rect" class="external-link"
href="http://activemq.apache.org/maven/5.5.0/activemq-camel/apidocs/org/apache/activemq/camel/component/ActiveMQComponent.html#activeMQComponent%28java.lang.String%29";><code>activeMQComponent()</code>
method</a> while specifying the <a shape="rect" class="external-link"
href="http://activemq.apache.org/configuring-transports.html";>brokerURL</a>
used to connect to ActiveMQ</p>An error occurred: Unable to retrieve the URL:
https://git-wip-us.apache.org/repos/asf?p=activemq.git;a=blob_plain;hb=HEAD;f=trunk/activemq-camel/src/test/java/org/apache/activemq/camel/component/ActiveMQRouteTest.java
status code: 404. The error has been recorded.<p>In normal use, an external
system would be firing messages or events directly into Camel through one if
its <a shape="rect" href="components.ht
ml">Components</a> but we are going to use the <a shape="rect"
class="external-link"
href="http://camel.apache.org/maven/current/camel-core/apidocs/org/apache/camel/ProducerTemplate.html";>ProducerTemplate</a>
which is a really easy way for testing your configuration:</p><div class="code
panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>The above works with any JMS provider. If we know we are using
<a shape="rect" href="activemq.html">ActiveMQ</a> we can use an even simpler
form using the <a shape="rect" class="external-link"
href="http://activemq.apache.org/maven/5.5.0/activemq-camel/apidocs/org/apache/activemq/camel/component/ActiveMQComponent.html#activeMQComponent%28java.lang.String%29";><code>activeMQComponent()</code>
method</a> while specifying the <a shape="rect" class="external-link"
href="http://activemq.apache.org/configuring-transports.html";>brokerURL</a>
used to connect to ActiveMQ</p><div class="error"><span class="error">Error
formatting macro: snippet: java.lang.IndexOutOfBoundsException: Index: 20,
Size: 20</span> </div><p>In normal use, an external system would be firing
messages or events directly into Camel through one if its <a shape="rect"
href="components.html">Components</a> but we are going to use the <a
shape="rect" class="external-link" href="http://camel.apache.org/maven/cu
rrent/camel-core/apidocs/org/apache/camel/ProducerTemplate.html">ProducerTemplate</a>
which is a really easy way for testing your configuration:</p><div class="code
panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
ProducerTemplate template = context.createProducerTemplate();
]]></script>
@@ -1137,7 +1137,7 @@ disruptor-vm:someName[?<option>]
<p>There now follows a list of the Enterprise Integration Patterns from the
book along with examples of the various patterns using Apache Camel</p>
-<h3 id="BookInOnePage-MessagingSystems">Messaging Systems</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ChannelIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ChannelIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-channel.html">Message Channel</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does one application communicate with
another using messaging?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageIcon.gif";></span></p></td><td
colsp
an="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message.html">Message</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can two applications connected by a message channel
exchange a piece of information?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PipesAndFiltersIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PipesAndFiltersIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="pipes-and-filters.html">Pipes and Filters</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can we perform complex processing on a
message while maintaining independence and flexibility?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedd
ed-image confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-router.html">Message Router</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can you decouple individual processing
steps so that messages can be passed to different filters depending on a set of
conditions?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageTranslatorIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageTranslatorIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-translator.html">Message Translator</a></p></td><td colspan="1"
rowspan="1"
class="confluenceTd"><p>How can systems using different data formats
communicate with each other using messaging?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageEndpointIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageEndpointIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-endpoint.html">Message Endpoint</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does an application connect to a
messaging channel to send and receive
messages?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessagingChannels">Messaging Channels</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence
-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PointToPointIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PointToPointIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="point-to-point-channel.html">Point to Point Channel</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How can the caller be sure that
exactly one receiver will receive the document or perform the
call?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PublishSubscribeIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PublishSubscribeIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="publish-subscribe-channel.html">Publish Subscribe Channel</a></p></td><td
colspan="1" rowspan="1" class="conf
luenceTd"><p>How can the sender broadcast an event to all interested
receivers?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DeadLetterChannelIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DeadLetterChannelIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="dead-letter-channel.html">Dead Letter Channel</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>What will the messaging system do with a
message it cannot deliver?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/GuaranteedMessagingIcon.gif";
data-image-src="http://www.eaipatterns.com/img/GuaranteedMessagingIcon.gif";></s
pan></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a
shape="rect" href="guaranteed-delivery.html">Guaranteed
Delivery</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How
can the sender make sure that a message will be delivered, even if the
messaging system fails?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageBusIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageBusIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-bus.html">Message Bus</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>What is an architecture that enables separate
applications to work together, but in a de-coupled fashion such that
applications can be easily added or removed without affecting the
others?</p></td></tr></tbody>
</table></div><h3 id="BookInOnePage-MessageConstruction">Message
Construction</h3><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/EventMessageIcon.gif";
data-image-src="http://www.eaipatterns.com/img/EventMessageIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="event-message.html">Event Message</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can messaging be used to transmit events from one
application to another?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RequestReplyIcon.gif";
data-image-src="http://www.eaipatterns.com/img/
RequestReplyIcon.gif"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect" href="request-reply.html">Request
Reply</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>When an
application sends a message, how can it get a response from the
receiver?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/CorrelationIdentifierIcon.gif";
data-image-src="http://www.eaipatterns.com/img/CorrelationIdentifierIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="correlation-identifier.html">Correlation Identifier</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How does a requestor that has
received a reply know which request this is the reply for?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span class=
"confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ReturnAddressIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ReturnAddressIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="return-address.html">Return Address</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does a replier know where to send the
reply?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessageRouting">Message Routing</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluence
Td"><p><a shape="rect" href="content-based-router.html">Content Based
Router</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How do
we handle a situation where the implementation of a single logical function
(e.g., inventory check) is spread across multiple physical
systems?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageFilterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageFilterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-filter.html">Message Filter</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a component avoid receiving
uninteresting messages?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-emb
edded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DynamicRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DynamicRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="dynamic-router.html">Dynamic Router</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can you avoid the dependency of the
router on all possible destinations while maintaining its
efficiency?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RecipientListIcon.gif";
data-image-src="http://www.eaipatterns.com/img/RecipientListIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="recipient-list.html">Recipient List</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do we route a messa
ge to a list of (static or dynamically) specified
recipients?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/SplitterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/SplitterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="splitter.html">Splitter</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we process a message if it contains multiple
elements, each of which may have to be processed in a different
way?</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/AggregatorIcon.gif";
data-image-src="http://www.eaipatterns.com/img/AggregatorIcon.gif";></span></p></td><td
colsp
an="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="aggregator2.html">Aggregator</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do we combine the results of individual, but
related messages so that they can be processed as a whole?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ResequencerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ResequencerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="resequencer.html">Resequencer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we get a stream of related but out-of-sequence
messages back into the correct order?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedd
ed-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DistributionAggregateIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DistributionAggregateIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="composed-message-processor.html">Composed Message
Processor</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How
can you maintain the overall message flow when processing a message consisting
of multiple elements, each of which may require different
processing?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" href="scatt
er-gather.html">Scatter-Gather</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do you maintain the overall message flow when a
message needs to be sent to multiple recipients, each of which may send a
reply?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RoutingTableIcon.gif";
data-image-src="http://www.eaipatterns.com/img/RoutingTableIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="routing-slip.html">Routing Slip</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do we route a message consecutively through a
series of processing steps when the sequence of steps is not known at
design-time and may vary for each message?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span class="confluence-embedded-file-wr
apper"><img class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="throttler.html">Throttler</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I throttle messages to ensure that a specific
endpoint does not get overloaded, or we don't exceed an agreed SLA with some
external service?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shap
e="rect" href="sampling.html">Sampling</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I sample one message out of many in a given
period to avoid downstream route does not get overloaded?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="delayer.html">Delayer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I delay the sending of a
message?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/co
nfluence/download/attachments/49204/clear.png"
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="load-balancer.html">Load Balancer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I balance load across a number of
endpoints?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="multicast.html">Multicast</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I route a message to a number of endpoints at
the same time?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="loop.html">Loop</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I repeat processing a message in a
loop?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessageTransformation">Message Transformation</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/DataEnricherIcon.gif";
data-image-src="http://www.eaipatterns.com/img/Da
taEnricherIcon.gif"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect" href="content-enricher.html">Content
Enricher</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How do
we communicate with another system if the message originator does not have all
the required data items available?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentFilterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentFilterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="content-filter.html">Content Filter</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do you simplify dealing with a large
message, when you are interested only in a few data items?</p></td></tr><tr><td
colspan="1" rowspan="1" class="conflue
nceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/StoreInLibraryIcon.gif";
data-image-src="http://www.eaipatterns.com/img/StoreInLibraryIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="claim-check.html">Claim Check</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we reduce the data volume of message sent
across the system without sacrificing information content?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/NormalizerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/NormalizerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="normalizer.html">Normalizer</a></p></td><td colspan
="1" rowspan="1" class="confluenceTd"><p>How do you process messages that are
semantically equivalent, but arrive in a different format?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="sort.html">Sort</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I sort the body of a
message?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> </td><td colspan="1" rowspan="1"
class="confluenceTd">Script</td><td colspan="1" rowspan="1"
class="confluenceTd">How do I execute a script which may not change the
message?</td></tr><tr><td colspan="1" rowspan="1" class="conflue
nceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="validate.html">Validate</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I validate a
message?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessagingEndpoints">Messaging Endpoints</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.p
ng"></span></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a
shape="rect" href="messaging-mapper.html">Messaging Mapper</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How do you move data between
domain objects and the messaging infrastructure while keeping the two
independent of each other?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/EventDrivenConsumerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/EventDrivenConsumerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="event-driven-consumer.html">Event Driven Consumer</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How can an application
automatically consume messages as they become available?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd
"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PollingConsumerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PollingConsumerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="polling-consumer.html">Polling Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can an application consume a message
when the application is ready?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/CompetingConsumersIcon.gif";
data-image-src="http://www.eaipatterns.com/img/CompetingConsumersIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="competing-consumers.html">Competing Consumers</a></p></td><td col
span="1" rowspan="1" class="confluenceTd"><p>How can a messaging client
process multiple messages concurrently?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageDispatcherIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageDispatcherIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-dispatcher.html">Message Dispatcher</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can multiple consumers on a single
channel coordinate their message processing?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageSelectorIcon.gif";
data-image-src="http://www.eaipattern
s.com/img/MessageSelectorIcon.gif"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect"
href="selective-consumer.html">Selective Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a message consumer select which
messages it wishes to receive?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DurableSubscriptionIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DurableSubscriptionIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="durable-subscriber.html">Durable Subscriber</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a subscriber avoid missing messages
while it's not listening for them?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluenc
e-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="idempotent-consumer.html">Idempotent Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a message receiver deal with
duplicate messages?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/TransactionalClientIcon.gif";
data-image-src="http://www.eaipatterns.com/img/TransactionalClientIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="transactional-client.html">Transactional Client</a></p></td><td c
olspan="1" rowspan="1" class="confluenceTd"><p>How can a client control its
transactions with the messaging system?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessagingGatewayIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessagingGatewayIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="messaging-gateway.html">Messaging Gateway</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do you encapsulate access to the
messaging system from the rest of the application?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessagingAdapterIcon.gif";
data-image-src="http://www.eaipa
tterns.com/img/MessagingAdapterIcon.gif"></span></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><a shape="rect"
href="service-activator.html">Service Activator</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can an application design a service to
be invoked both via various messaging technologies and via non-messaging
techniques?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-SystemManagement">System Management</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ControlBusIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ControlBusIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="controlbus.html">ControlBus</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd">
<p>How can we effectively administer a messaging system that is distributed
across multiple platforms and a wide geographic area?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/DetourIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DetourIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="detour.html">Detour</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can you route a message through intermediate steps
to perform validation, testing or debugging functions?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/WireTapIcon.gif";
data-image-src="http://www.eaipatterns.com/img/
WireTapIcon.gif"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect" href="wire-tap.html">Wire
Tap</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How do you
inspect messages that travel on a point-to-point channel?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-history.html">Message History</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can we effectively analyze and debug
the flow of messages in a loosely coupled system?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span class="confluence-embedd
ed-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="logeip.html">Log</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I log processing a
message?</p></td></tr></tbody></table></div>
+<h3 id="BookInOnePage-MessagingSystems">Messaging Systems</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ChannelIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ChannelIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-channel.html">Message Channel</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does one application communicate with
another using messaging?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageIcon.gif";></span></p></td><td
colsp
an="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message.html">Message</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can two applications connected by a message channel
exchange a piece of information?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PipesAndFiltersIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PipesAndFiltersIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="pipes-and-filters.html">Pipes and Filters</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can we perform complex processing on a
message while maintaining independence and flexibility?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedd
ed-image confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-router.html">Message Router</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can you decouple individual processing
steps so that messages can be passed to different filters depending on a set of
conditions?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageTranslatorIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageTranslatorIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-translator.html">Message Translator</a></p></td><td colspan="1"
rowspan="1"
class="confluenceTd"><p>How can systems using different data formats
communicate with each other using messaging?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageEndpointIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageEndpointIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-endpoint.html">Message Endpoint</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does an application connect to a
messaging channel to send and receive
messages?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessagingChannels">Messaging Channels</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence
-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PointToPointIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PointToPointIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="point-to-point-channel.html">Point to Point Channel</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How can the caller be sure that
exactly one receiver will receive the document or perform the
call?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PublishSubscribeIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PublishSubscribeIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="publish-subscribe-channel.html">Publish Subscribe Channel</a></p></td><td
colspan="1" rowspan="1" class="conf
luenceTd"><p>How can the sender broadcast an event to all interested
receivers?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DeadLetterChannelIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DeadLetterChannelIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="dead-letter-channel.html">Dead Letter Channel</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>What will the messaging system do with a
message it cannot deliver?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/GuaranteedMessagingIcon.gif";
data-image-src="http://www.eaipatterns.com/img/GuaranteedMessagingIcon.gif";></s
pan></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a
shape="rect" href="guaranteed-delivery.html">Guaranteed
Delivery</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How
can the sender make sure that a message will be delivered, even if the
messaging system fails?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageBusIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageBusIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-bus.html">Message Bus</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>What is an architecture that enables separate
applications to work together, but in a de-coupled fashion such that
applications can be easily added or removed without affecting the
others?</p></td></tr></tbody>
</table></div><h3 id="BookInOnePage-MessageConstruction">Message
Construction</h3><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/EventMessageIcon.gif";
data-image-src="http://www.eaipatterns.com/img/EventMessageIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="event-message.html">Event Message</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can messaging be used to transmit events from one
application to another?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RequestReplyIcon.gif";
data-image-src="http://www.eaipatterns.com/img/
RequestReplyIcon.gif"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect" href="request-reply.html">Request
Reply</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>When an
application sends a message, how can it get a response from the
receiver?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/CorrelationIdentifierIcon.gif";
data-image-src="http://www.eaipatterns.com/img/CorrelationIdentifierIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="correlation-identifier.html">Correlation Identifier</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How does a requestor that has
received a reply know which request this is the reply for?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span class=
"confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ReturnAddressIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ReturnAddressIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="return-address.html">Return Address</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How does a replier know where to send the
reply?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessageRouting">Message Routing</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentBasedRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluence
Td"><p><a shape="rect" href="content-based-router.html">Content Based
Router</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How do
we handle a situation where the implementation of a single logical function
(e.g., inventory check) is spread across multiple physical
systems?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageFilterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageFilterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-filter.html">Message Filter</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a component avoid receiving
uninteresting messages?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-emb
edded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DynamicRouterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DynamicRouterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="dynamic-router.html">Dynamic Router</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can you avoid the dependency of the
router on all possible destinations while maintaining its
efficiency?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RecipientListIcon.gif";
data-image-src="http://www.eaipatterns.com/img/RecipientListIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="recipient-list.html">Recipient List</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do we route a messa
ge to a list of (static or dynamically) specified
recipients?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/SplitterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/SplitterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="splitter.html">Splitter</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we process a message if it contains multiple
elements, each of which may have to be processed in a different
way?</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/AggregatorIcon.gif";
data-image-src="http://www.eaipatterns.com/img/AggregatorIcon.gif";></span></p></td><td
colsp
an="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="aggregator2.html">Aggregator</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do we combine the results of individual, but
related messages so that they can be processed as a whole?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/ResequencerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ResequencerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="resequencer.html">Resequencer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we get a stream of related but out-of-sequence
messages back into the correct order?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedd
ed-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DistributionAggregateIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DistributionAggregateIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="composed-message-processor.html">Composed Message
Processor</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How
can you maintain the overall message flow when processing a message consisting
of multiple elements, each of which may require different
processing?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" href="scatt
er-gather.html">Scatter-Gather</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do you maintain the overall message flow when a
message needs to be sent to multiple recipients, each of which may send a
reply?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/RoutingTableIcon.gif";
data-image-src="http://www.eaipatterns.com/img/RoutingTableIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="routing-slip.html">Routing Slip</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do we route a message consecutively through a
series of processing steps when the sequence of steps is not known at
design-time and may vary for each message?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span class="confluence-embedded-file-wr
apper"><img class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="throttler.html">Throttler</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I throttle messages to ensure that a specific
endpoint does not get overloaded, or we don't exceed an agreed SLA with some
external service?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shap
e="rect" href="sampling.html">Sampling</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I sample one message out of many in a given
period to avoid downstream route does not get overloaded?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="delayer.html">Delayer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I delay the sending of a
message?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/co
nfluence/download/attachments/49204/clear.png"
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="load-balancer.html">Load Balancer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I balance load across a number of
endpoints?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> </td><td colspan="1" rowspan="1"
class="confluenceTd"><a shape="rect"
href="hystrix-eip.html">Hystrix</a></td><td colspan="1" rowspan="1"
class="confluenceTd">To use Hystrix Circuit Breaker when calling an external
service.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attach
ments/49204/clear.png"></span></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><a shape="rect"
href="multicast.html">Multicast</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I route a message to a number of endpoints at
the same time?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="loop.html">Loop</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I repeat processing a message in a
loop?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessageTransformation">Message Transformation</h3><div
class="table-wrap"><table class="confluence
Table"><tbody><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/DataEnricherIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DataEnricherIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="content-enricher.html">Content Enricher</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do we communicate with another system
if the message originator does not have all the required data items
available?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/ContentFilterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/ContentFilterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="conflu
enceTd"><p><a shape="rect" href="content-filter.html">Content
Filter</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How do
you simplify dealing with a large message, when you are interested only in a
few data items?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/StoreInLibraryIcon.gif";
data-image-src="http://www.eaipatterns.com/img/StoreInLibraryIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="claim-check.html">Claim Check</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we reduce the data volume of message sent
across the system without sacrificing information content?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
co
nfluence-external-resource"
src="http://www.eaipatterns.com/img/NormalizerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/NormalizerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="normalizer.html">Normalizer</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do you process messages that are semantically
equivalent, but arrive in a different format?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="sort.html">Sort</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I sort the body of a message?</p></td><
/tr><tr><td colspan="1" rowspan="1" class="confluenceTd"> </td><td
colspan="1" rowspan="1" class="confluenceTd">Script</td><td colspan="1"
rowspan="1" class="confluenceTd">How do I execute a script which may not change
the message?</td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="validate.html">Validate</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I validate a
message?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-MessagingEndpoints">Messaging Endpoints</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="con
fluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="messaging-mapper.html">Messaging Mapper</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do you move data between domain objects
and the messaging infrastructure while keeping the two independent of each
other?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/EventDrivenConsumerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/EventDrivenConsumerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confl
uenceTd"><p><a shape="rect" href="event-driven-consumer.html">Event Driven
Consumer</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>How
can an application automatically consume messages as they become
available?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/PollingConsumerIcon.gif";
data-image-src="http://www.eaipatterns.com/img/PollingConsumerIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="polling-consumer.html">Polling Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can an application consume a message
when the application is ready?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource" sr
c="http://www.eaipatterns.com/img/CompetingConsumersIcon.gif";
data-image-src="http://www.eaipatterns.com/img/CompetingConsumersIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="competing-consumers.html">Competing Consumers</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a messaging client process multiple
messages concurrently?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageDispatcherIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageDispatcherIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="message-dispatcher.html">Message Dispatcher</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can multiple consumers on a single
channel coordinate their message pr
ocessing?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessageSelectorIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessageSelectorIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="selective-consumer.html">Selective Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a message consumer select which
messages it wishes to receive?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DurableSubscriptionIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DurableSubscriptionIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape
="rect" href="durable-subscriber.html">Durable Subscriber</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How can a subscriber avoid
missing messages while it's not listening for them?</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="idempotent-consumer.html">Idempotent Consumer</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can a message receiver deal with
duplicate messages?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource" src=
"http://www.eaipatterns.com/img/TransactionalClientIcon.gif";
data-image-src="http://www.eaipatterns.com/img/TransactionalClientIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="transactional-client.html">Transactional Client</a></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>How can a client control its
transactions with the messaging system?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://www.eaipatterns.com/img/MessagingGatewayIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessagingGatewayIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="messaging-gateway.html">Messaging Gateway</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How do you encapsulate access to the
messaging system from the rest of the
application?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/MessagingAdapterIcon.gif";
data-image-src="http://www.eaipatterns.com/img/MessagingAdapterIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="service-activator.html">Service Activator</a></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>How can an application design a service to
be invoked both via various messaging technologies and via non-messaging
techniques?</p></td></tr></tbody></table></div><h3
id="BookInOnePage-SystemManagement">System Management</h3><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource" src="http:
//www.eaipatterns.com/img/ControlBusIcon.gif"
data-image-src="http://www.eaipatterns.com/img/ControlBusIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="controlbus.html">ControlBus</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we effectively administer a messaging system
that is distributed across multiple platforms and a wide geographic
area?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/DetourIcon.gif";
data-image-src="http://www.eaipatterns.com/img/DetourIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="detour.html">Detour</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can you route a message through intermediate steps
to perform validation, testing or debugging fun
ctions?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://www.eaipatterns.com/img/WireTapIcon.gif";
data-image-src="http://www.eaipatterns.com/img/WireTapIcon.gif";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="wire-tap.html">Wire Tap</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How do you inspect messages that travel on a
point-to-point channel?</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span class="confluence-embedded-file-wrapper"><img
class="confluence-embedded-image confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" href="
message-history.html">Message History</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can we effectively analyze and debug the flow of
messages in a loosely coupled system?</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><span
class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image
confluence-external-resource"
src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";
data-image-src="http://cwiki.apache.org/confluence/download/attachments/49204/clear.png";></span></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect"
href="logeip.html">Log</a></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>How can I log processing a
message?</p></td></tr></tbody></table></div>
<p>For a full breakdown of each pattern see the <a shape="rect"
href="book-pattern-appendix.html">Book Pattern Appendix</a></p>
</div>
@@ -2660,7 +2660,7 @@ public class CamelSpringDelegatingTestCo
}
// end::example[]
]]></script>
-</div></div><h4
id="BookInOnePage-SpringTestwithXMLConfigandDeclarativeConfigurationExample">Spring
Test with XML Config and Declarative Configuration Example</h4><p>Here is a
Camel test support enhanced <a shape="rect"
href="spring-testing.html">Spring Testing</a> <a shape="rect"
class="external-link"
href="https://svn.apache.org/repos/asf/camel/trunk/components/camel-test-spring/src/test/java/org/apache/camel/test/spring/CamelSpringJUnit4ClassRunnerPlainTest.java";>example
using XML Config and pure Spring Test based configuration of the Camel
Context</a>:An error occurred: Unable to retrieve the URL:
https://git-wip-us.apache.org/repos/asf?p=camel.git;a=blob_plain;hb=HEAD;f=components/camel-test-spring/src/test/java/org/apache/camel/test/spring/CamelSpringJUnit4ClassRunnerPlainTest.java
status code: 404. The error has been recorded.Notice how a custom test runner
is used with the <code>@RunWith</code> annotation to support the
features of <code>CamelTestSup
port</code> through annotations on the test class. See <a
shape="rect" href="spring-testing.html">Spring Testing</a> for a list of
annotations you can use in your tests.</p><h4
id="BookInOnePage-BlueprintTest">Blueprint Test</h4><p>Here is the <a
shape="rect" href="blueprint-testing.html">Blueprint Testing</a> <a
shape="rect" class="external-link"
href="http://svn.apache.org/repos/asf/camel/trunk/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/DebugBlueprintTest.java";>example
using XML Config</a>:</p><div class="code panel pdl" style="border-width:
1px;"><div class="codeContent panelContent pdl">
+</div></div><h4
id="BookInOnePage-SpringTestwithXMLConfigandDeclarativeConfigurationExample">Spring
Test with XML Config and Declarative Configuration Example</h4><p>Here is a
Camel test support enhanced <a shape="rect"
href="spring-testing.html">Spring Testing</a> <a shape="rect"
class="external-link"
href="https://svn.apache.org/repos/asf/camel/trunk/components/camel-test-spring/src/test/java/org/apache/camel/test/spring/CamelSpringJUnit4ClassRunnerPlainTest.java";>example
using XML Config and pure Spring Test based configuration of the Camel
Context</a>:</p><div class="error"><span class="error">Error formatting macro:
snippet: java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span>
</div>Notice how a custom test runner is used with
the <code>@RunWith</code> annotation to support the features
of <code>CamelTestSupport</code> through annotations on the test
class. See <a shape="rect" href="spring-testing.html">Spring
Testing</a> for a
list of annotations you can use in your tests.<h4
id="BookInOnePage-BlueprintTest">Blueprint Test</h4><p>Here is the <a
shape="rect" href="blueprint-testing.html">Blueprint Testing</a> <a
shape="rect" class="external-link"
href="http://svn.apache.org/repos/asf/camel/trunk/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/DebugBlueprintTest.java";>example
using XML Config</a>:</p><div class="code panel pdl" style="border-width:
1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
// tag::example[]
// to use camel-test-blueprint, then extend the CamelBlueprintTestSupport
class,
@@ -3612,11 +3612,11 @@ The tutorial has been designed in two pa
While not actual tutorials you might find working through the source of the
various <a shape="rect" href="examples.html">Examples</a> useful.</li></ul>
<h2 id="BookInOnePage-TutorialonSpringRemotingwithJMS">Tutorial on Spring
Remoting with JMS</h2><p> </p><div class="confluence-information-macro
confluence-information-macro-information"><p class="title">Thanks</p><span
class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>This tutorial was kindly donated
to Apache Camel by Martin Gilday.</p></div></div><h2
id="BookInOnePage-Preface">Preface</h2><p>This tutorial aims to guide the
reader through the stages of creating a project which uses Camel to facilitate
the routing of messages from a JMS queue to a <a shape="rect"
class="external-link" href="http://www.springramework.org";
rel="nofollow">Spring</a> service. The route works in a synchronous fashion
returning a response to the client.</p><p><style type="text/css">/*<![CDATA[*/
-div.rbtoc1461244685104 {padding: 0px;}
-div.rbtoc1461244685104 ul {list-style: disc;margin-left: 0px;}
-div.rbtoc1461244685104 li {margin-left: 0px;padding-left: 0px;}
+div.rbtoc1461269888752 {padding: 0px;}
+div.rbtoc1461269888752 ul {list-style: disc;margin-left: 0px;}
+div.rbtoc1461269888752 li {margin-left: 0px;padding-left: 0px;}
-/*]]>*/</style></p><div class="toc-macro rbtoc1461244685104">
+/*]]>*/</style></p><div class="toc-macro rbtoc1461269888752">
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-TutorialonSpringRemotingwithJMS">Tutorial on Spring
Remoting with JMS</a></li><li><a shape="rect"
href="#BookInOnePage-Preface">Preface</a></li><li><a shape="rect"
href="#BookInOnePage-Prerequisites">Prerequisites</a></li><li><a shape="rect"
href="#BookInOnePage-Distribution">Distribution</a></li><li><a shape="rect"
href="#BookInOnePage-About">About</a></li><li><a shape="rect"
href="#BookInOnePage-CreatetheCamelProject">Create the Camel Project</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-UpdatethePOMwithDependencies">Update the POM with
Dependencies</a></li></ul>
</li><li><a shape="rect" href="#BookInOnePage-WritingtheServer">Writing the
Server</a>
@@ -5731,11 +5731,11 @@ So we completed the last piece in the pi
<p>This example has been removed from <strong>Camel 2.9</strong> onwards.
Apache Axis 1.4 is a very old and unsupported framework. We encourage users to
use <a shape="rect" href="cxf.html">CXF</a> instead of Axis.</p></div></div>
<style type="text/css">/*<![CDATA[*/
-div.rbtoc1461244686087 {padding: 0px;}
-div.rbtoc1461244686087 ul {list-style: disc;margin-left: 0px;}
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+div.rbtoc1461269890005 {padding: 0px;}
+div.rbtoc1461269890005 ul {list-style: disc;margin-left: 0px;}
+div.rbtoc1461269890005 li {margin-left: 0px;padding-left: 0px;}
-/*]]>*/</style><div class="toc-macro rbtoc1461244686087">
+/*]]>*/</style><div class="toc-macro rbtoc1461269890005">
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-TutorialusingAxis1.4withApacheCamel">Tutorial using Axis
1.4 with Apache Camel</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-Prerequisites">Prerequisites</a></li><li><a shape="rect"
href="#BookInOnePage-Distribution">Distribution</a></li><li><a shape="rect"
href="#BookInOnePage-Introduction">Introduction</a></li><li><a shape="rect"
href="#BookInOnePage-SettinguptheprojecttorunAxis">Setting up the project to
run Axis</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-Maven2">Maven 2</a></li><li><a shape="rect"
href="#BookInOnePage-wsdl">wsdl</a></li><li><a shape="rect"
href="#BookInOnePage-ConfiguringAxis">Configuring Axis</a></li><li><a
shape="rect" href="#BookInOnePage-RunningtheExample">Running the
Example</a></li></ul>
@@ -8146,7 +8146,7 @@ simple("There are ${body.length} li
</div></div><h3 id="BookInOnePage-Operatorsupport">Operator support</h3><p>The
parser is limited to only support a single operator.</p><p>To enable it the
left value must be enclosed in ${ }. The syntax is:</p><div class="code panel
pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[${leftValue} OP rightValue
]]></script>
-</div></div><p>Where the <code>rightValue</code> can be a String literal
enclosed in <code>' '</code>, <code>null</code>, a constant value or another
expression enclosed in ${ }.</p><div class="confluence-information-macro
confluence-information-macro-information"><p class="title">Important</p><span
class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>There <strong>must</strong> be
spaces around the operator.</p></div></div><p>Camel will automatically type
convert the rightValue type to the leftValue type, so it is able to eg. convert
a string into a numeric so you can use > comparison for numeric
values.</p><p>The following operators are supported:</p><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1"
rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td
colspan="1" rowspan="1" c
lass="confluenceTd"><p>==</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>equals</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">=~</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.16:</strong> equals ignore case (will
ignore case when comparing String values)</td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>greater than</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>>=</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>greater than or equals</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>less than</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><=</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>less than or equals</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>!=</p></td><td co
lspan="1" rowspan="1" class="confluenceTd"><p>not equals</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>contains</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>For testing if contains in a
string based value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not contains</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For testing if not contains in a string based
value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>regex</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching against a given regular expression pattern
defined as a String value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not regex</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For not matching against a given regular expression
pattern defined as a String value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in</p></td><td colspan="1" rowspan="1" class="con
fluenceTd"><p>For matching if in a set of values, each element must be
separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not in</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if not in a set of values, each element
must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>is</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side type is an
instanceof the value.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not is</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side type is not an
instanceof the value.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>range</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side is within a range of
values defined as numbers: <code>from..to</code>. From <strong>Camel
2.9</strong> onwards
the range values must be enclosed in single quotes.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>not range</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand
side is not within a range of values defined as numbers: <code>from..to</code>.
From <strong>Camel 2.9</strong> onwards the range values must be enclosed in
single quotes.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">starts with</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17.1, 2.18</strong><span>: For testing if
the left hand side string starts with the right hand
string.</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">ends with</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17.1, 2.18</strong>: For testing if the
left hand side string ends with the right hand
string.</td></tr></tbody></table></div><p>And the following unary operators can
be used:</p><div class="table-wrap"><ta
ble class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>++</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> To increment a number by
one. The left hand side must be a function, otherwise parsed as
literal.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>--</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> To decrement a number by
one. The left hand side must be a function, otherwise parsed as
literal.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.3 to 2.10.x</strong> To escape a
value, eg \$, to indicate a $ sign. Special: Use \n for new line, \t for tab,
and \r for carriage return. <strong>Notice:</stro
ng> Escaping is <strong>not</strong> supported using the <a shape="rect"
href="file-language.html">File Language</a>. <strong>Notice:</strong> From
Camel 2.11 onwards the escape character is no longer support, but replaced with
the following three special escaping.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>\n</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use newline
character.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\t</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use tab
character.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\r</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use carriage return
character.</p></td></tr></tbody></table></div><p>And the following logical
operators can be used to group expressions:</p><div class="table-wrap"><table
class="confluenceTable">
<tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>and</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>deprecated</strong> use && instead. The
logical and operator is used to group two expressions.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>or</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>deprecated</strong> use || instead.
The logical or operator is used to group two expressions.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>&&</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The
logical and operator is used to group two expressions.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>||</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.
9:</strong> The logical or operator is used to group two
expressions.</p></td></tr></tbody></table></div><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">Using and,or
operators</p><span class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>In <strong>Camel 2.4 or
older</strong> the <code>and</code> or <code>or</code> can only be used
<strong>once</strong> in a simple language expression. From <strong>Camel
2.5</strong> onwards you can use these operators multiple
times.</p></div></div><p>The syntax for AND is:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
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