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| |
| <document> |
| <properties> |
| <title>Apache Synapse - Sample 452</title> |
| </properties> |
| <body> |
| <section name="Sample 452: Conditional URL Rewriting with Multiple Rules"> |
| <div class="xmlConf"><definitions xmlns="http://ws.apache.org/ns/synapse"> |
| |
| <sequence name="main"> |
| <in> |
| <property name="http.port" value="9000"/> |
| <property name="https.port" value="9002"/> |
| <rewrite> |
| <rule> |
| <action fragment="host" value="localhost"/> |
| <action fragment="path" type="prepend" value="/services"/> |
| </rule> |
| <rule> |
| <condition> |
| <equal type="url" source="protocol" value="http"/> |
| </condition> |
| <action fragment="port" xpath="get-property('http.port')"/> |
| </rule> |
| <rule> |
| <condition> |
| <equal type="url" source="protocol" value="https"/> |
| </condition> |
| <action fragment="port" xpath="get-property('https.port')"/> |
| </rule> |
| </rewrite> |
| <log level="full"/> |
| <send/> |
| </in> |
| <out> |
| <send/> |
| </out> |
| </sequence> |
| |
| </definitions></div> |
| <subsection name="Objective"> |
| <p> |
| Demonstrate the ability of the URL rewrite mediator to perform rewrites based |
| on multiple rules |
| </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 452 (repository/conf/sample/synapse_sample_452.xml) |
| <div class="command"> |
| Unix/Linux: sh synapse.sh -sample 452<br/> |
| Windows: synapse.bat -sample 452 |
| </div> |
| </li> |
| </ul> |
| </p> |
| </subsection> |
| <subsection name="Executing the Client"> |
| <p> |
| One may specify multiple rewrite rules for a URL rewrite mediator instance. In |
| that case Synapse will execute all the rules on each message, in the order they |
| appear. This particular sample lists 3 rewrite rules. To try it out, invoke the |
| client as follows. |
| </p> |
| <div class="command">ant stockquote -Dtrpurl=http://localhost:8280 -Daddurl=http://test.com/SimpleStockQuoteService</div> |
| <p> |
| The provided address URL does not contain a port number and the context. The URL |
| rewrite mediator will replace the hostname (test.com) with 'localhost' and add the |
| context '/services' to the path. Then it will add the appropriate port number to |
| the URL by looking at the protocol prefix. Ultimately the service request will be |
| routed the sample Axis2 server and the client will receive a valid response. |
| </p> |
| <p> |
| Another important aspect shown by this sample is the ability of the URL rewirte |
| mediator to obtain the necessary values by executing XPath expressions. The port |
| numbers are calculated by executing an XPath on the messages. |
| </p> |
| </subsection> |
| </section> |
| <p><a href="../samples.html">Back to Catalog</a></p> |
| </body> |
| </document> |
