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| |
| <document> |
| <properties> |
| <title>Apache Synapse - Sample 265</title> |
| </properties> |
| <body> |
| <section name="Sample 265: Switching from TCP to HTTP/S"> |
| <div class="xmlConf"><definitions xmlns="http://ws.apache.org/ns/synapse"> |
| |
| <proxy name="StockQuoteProxy" transports="tcp"> |
| <target> |
| <endpoint> |
| <address uri="http://localhost:9000/services/SimpleStockQuoteService"/> |
| </endpoint> |
| <inSequence> |
| <log level="full"/> |
| <property name="OUT_ONLY" value="true"/> |
| </inSequence> |
| </target> |
| </proxy> |
| |
| </definitions></div> |
| <subsection name="Objective"> |
| <p> |
| Demonstrate the ability of Synapse to receive raw TCP messages and send them to |
| HTTP endpoints |
| </p> |
| </subsection> |
| <subsection name="Pre-requisites"> |
| <p> |
| <ul> |
| <li> |
| Deploy the SimpleStockQuoteService in the sample Axis2 server and start Axis2 |
| </li> |
| <li> |
| Enable the TCP transport receiver for Synapse (refer |
| <a href="setup/tcp_udp.html#tcp">TCP transport setup guide</a>). |
| </li> |
| <li> |
| Start Synapse using the configuration numbered 265 (repository/conf/sample/synapse_sample_265.xml) |
| <div class="command"> |
| Unix/Linux: sh synapse.sh -sample 265<br/> |
| Windows: synapse.bat -sample 265 |
| </div> |
| </li> |
| <li> |
| Enable the TCP transport sender for the sample Axis2 client (refer |
| <a href="setup/tcp_udp.html#tcp">TCP transport setup guide</a> for |
| details). |
| </li> |
| </ul> |
| </p> |
| </subsection> |
| <subsection name="Executing the Client"> |
| <p> |
| This sample is similar to <a href="sample250.html">Sample 250</a>. Only difference |
| is instead of the JMS transport we will be using the TCP transport to receive |
| messages. TCP is not an application layer protocol. Hence there are no application |
| level headers available in the requests. Synapse has to simply read the XML content |
| coming through the socket and dispatch it to the right proxy service based on the |
| information available in the message payload itself. The TCP transport is capable |
| of dispatching requests based on addressing headers or the first element in the |
| SOAP body. In this sample, we will get the sample client to send WS-Addressing |
| headers in the request. Therefore the dispatching will take place based on the |
| addressing header values. |
| </p> |
| <p> |
| Invoke the stockquote client using the following command. Note the TCP URL in the |
| command. |
| </p> |
| <div class="command">ant stockquote -Daddurl=tcp://localhost:6060/services/StockQuoteProxy -Dmode=placeorder</div> |
| <p> |
| The TCP transport will receive the message and hand it over to the mediation engine. |
| Synapse will dispatch the request to the StockQuoteProxy service based on the |
| addressing header values. |
| </p> |
| <p> |
| When the proxy service forwards the message to the sample Axis2 server over HTTP, |
| sample server will print the following entry to confirm that the request has |
| been received. |
| </p> |
| <div class="consoleOutput">Thu May 20 12:25:01 IST 2010 samples.services.SimpleStockQuoteService :: Accepted order #1 for : 17621 stocks of IBM at $ 73.48068475255796</div> |
| </subsection> |
| </section> |
| <p><a href="../samples.html">Back to Catalog</a></p> |
| </body> |
| </document> |
