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| |
| <document> |
| <properties> |
| <title>Apache Synapse - Sample 451</title> |
| </properties> |
| <body> |
| <section name="Sample 451: Conditional URL Rewriting"> |
| <div class="xmlConf"><definitions xmlns="http://ws.apache.org/ns/synapse"> |
| |
| <sequence name="main"> |
| <in> |
| <rewrite> |
| <rule> |
| <condition> |
| <and> |
| <equal type="url" source="host" value="localhost"/> |
| <not> |
| <equal type="url" source="protocol" value="https"/> |
| </not> |
| </and> |
| </condition> |
| <action fragment="protocol" value="https"/> |
| <action fragment="port" value="9002"/> |
| </rule> |
| </rewrite> |
| <send/> |
| </in> |
| <out> |
| <send/> |
| </out> |
| </sequence> |
| |
| </definitions></div> |
| <subsection name="Objective"> |
| <p> |
| Demonstrate the ability of the URL rewrite mediator to evaluate conditions on |
| messages and perform rewrites based on the results |
| </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 451 (repository/conf/sample/synapse_sample_451.xml) |
| <div class="command"> |
| Unix/Linux: sh synapse.sh -sample 451<br/> |
| Windows: synapse.bat -sample 451 |
| </div> |
| </li> |
| </ul> |
| </p> |
| </subsection> |
| <subsection name="Executing the Client"> |
| <p> |
| Invoke the Axis2 client and send some requests to Synapse with different address |
| URL values. If the address URL value contains 'localhost' as the hostname and 'https' |
| as the protocol prefix, Synapse will route the message as it is. But if the |
| hostname is 'localhost' and the protocol is not https, Synapse will rewrite the |
| URL by setting 'https' as the protocol. The port number will also be set to the |
| HTTPS port of the Axis2 server. |
| </p> |
| <p> |
| If you invoke the client as follows, Synapse will rewrite the 'To' header and |
| forward the message to Axis2 over HTTPS. |
| </p> |
| <div class="command">ant stockquote -Daddurl=http://localhost:9000/services/SimpleStockQuoteService -Dtrpurl=http://localhost:8280/</div> |
| <p> |
| The condition evaluation feature is provided by the Synapse evaluator framework. |
| Currently one can evaluate expressions on URL values, query parameters, transport |
| headers, properties and SOAP envelope content using this framework. Hence URL |
| rewriting can be done based on any of these aspects. |
| </p> |
| </subsection> |
| </section> |
| <p><a href="../samples.html">Back to Catalog</a></p> |
| </body> |
| </document> |
