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| |
| <document> |
| <properties> |
| <title>Apache Synapse - Sample 355</title> |
| </properties> |
| <body> |
| <section name="Sample 355: Using Python Scripts for Mediation"> |
| <div class="xmlConf"> |
| <definitions xmlns="http://ws.apache.org/ns/synapse"> |
| |
| <registry provider="org.apache.synapse.registry.url.SimpleURLRegistry"> |
| <!-- the root property of the simple URL registry helps resolve a resource URL as root + key --> |
| <parameter name="root">file:repository/conf/sample/resources/</parameter> |
| <!-- all resources loaded from the URL registry would be cached for this number of milli seconds --> |
| <parameter name="cachableDuration">15000</parameter> |
| </registry> |
| |
| <localEntry key="stockquoteScript" |
| src="file:repository/conf/sample/resources/script/stockquoteTransformRequest.py"/> |
| |
| <sequence name="main"> |
| <in> |
| <!-- transform the custom quote request into a standard quote request expected by the service --> |
| <script language="py" key="stockquoteScript" function="transformRequest"/> |
| <send> |
| <endpoint> |
| <address uri="http://localhost:9000/services/SimpleStockQuoteService"/> |
| </endpoint> |
| </send> |
| </in> |
| <out> |
| <!-- transform the standard response back into the custom format the client expects --> |
| <script language="py" key="script/stockquoteTransformResponse.py" |
| function="transformResponse"/> |
| <send/> |
| </out> |
| </sequence> |
| |
| </definitions></div> |
| <subsection name="Objective"> |
| <p> |
| Shows how to embed Python scripts in the Synapse configuration itself. |
| </p> |
| </subsection> |
| <subsection name="Pre-requisites"> |
| <p> |
| <ul> |
| <li> |
| This sample uses Jython, so first setup support for this in Synapse as described at |
| <a href="setup/script.html#python">Configuring Jython</a> |
| </li> |
| <li> |
| Deploy the SimpleStockQuoteService in the sample Axis2 server and start Axis2 |
| </li> |
| <li> |
| Synapse does not ship with a Jython engine by default. Therefore you should |
| download the Jython engine from Jython site and copy the downloaded jar file |
| to the 'lib' directory of Synapse. |
| </li> |
| <li> |
| Start Synapse using the configuration numbered 355 (repository/conf/sample/synapse_sample_355.xml) |
| <div class="command"> |
| Unix/Linux: sh synapse.sh -sample 355<br/> |
| Windows: synapse.bat -sample 355 |
| </div> |
| </li> |
| </ul> |
| </p> |
| </subsection> |
| <subsection name="Executing the Client"> |
| <p> |
| Run the sample client as follows. |
| </p> |
| <div class="command">ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/ -Dmode=customquote</div> |
| <p> |
| The Python scripts will transform the requests and responses. |
| </p> |
| </subsection> |
| </section> |
| <p><a href="../samples.html">Back to Catalog</a></p> |
| </body> |
| </document> |
