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| |
| <document> |
| <properties> |
| <title>Apache Synapse - Sample 701</title> |
| </properties> |
| <body> |
| <section name="Sample 701: Introduction to Message Sampling Processor"> |
| <div class="xmlConf"><!-- Introduction to Message Sampling Processor --> |
| <definitions xmlns="http://ws.apache.org/ns/synapse"> |
| <sequence name="send_seq"> |
| <send> |
| <endpoint> |
| <address uri="http://localhost:9000/services/SimpleStockQuoteService"> |
| <suspendOnFailure> |
| <errorCodes>-1</errorCodes> |
| <progressionFactor>1.0</progressionFactor> |
| </suspendOnFailure> |
| </address> |
| </endpoint> |
| </send> |
| </sequence> |
| <sequence name="main"> |
| <in> |
| <log level="full"/> |
| <property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/> |
| <property name="OUT_ONLY" value="true"/> |
| <store messageStore="MyStore"/> |
| </in> |
| <description>The main sequence for the message mediation</description> |
| </sequence> |
| <messageStore name="MyStore"/> |
| <messageProcessor |
| class="org.apache.synapse.message.processors.sampler.SamplingProcessor" |
| name="SamplingProcessor" messageStore="MyStore"> |
| <parameter name="interval">20000</parameter> |
| <parameter name="sequence">send_seq</parameter> |
| </messageProcessor> |
| </definitions></div> |
| <subsection name="Objective"> |
| <p> |
| Introduction to Message Sampling Processor |
| </p> |
| </subsection> |
| <subsection name="Pre-requisites"> |
| <p> |
| <ul> |
| <li> |
| Deploy the SimpleStockQuoteService in the sample Axis2 server and start Axis2 |
| </li> |
| <li> |
| Start Synapse using the configuration numbered 701 (repository/conf/sample/synapse_sample_701.xml) |
| <div class="command"> |
| Unix/Linux: sh synapse.sh -sample 701<br/> |
| Windows: synapse.bat -sample 701 |
| </div> |
| </li> |
| </ul> |
| </p> |
| </subsection> |
| <subsection name="Executing the Client"> |
| <p> |
| Execute the Client few times with command : |
| </p> |
| <div class="command">ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dmode=placeorder |
| </div> |
| |
| <p> |
| When you execute the client the message will be dispatched to the main sequence. |
| In the Main sequence store mediator will store the placeOrder request message in |
| the 'MyStore' message store. |
| </p> |
| <p> |
| Message Processor will consume the messages and forward to the 'send_seq' sequence |
| in the configured rate. |
| </p> |
| <p> |
| You will observe that service invocation rate is not changing when increasing the |
| rate at which we execute the client. |
| </p> |
| </subsection> |
| </section> |
| <p> |
| <a href="../samples.html">Back to Catalog</a> |
| </p> |
| </body> |
| </document> |
