Sample 267: Switching from UDP to HTTP/S

Objective: Demonstrate receiving SOAP messages over UDP and forwarding them over HTTP

<definitions xmlns="http://ws.apache.org/ns/synapse"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://ws.apache.org/ns/synapse http://synapse.apache.org/ns/2010/04/configuration/synapse_config.xsd">

    <proxy name="StockQuoteProxy" transports="udp">
        <target>
            <endpoint>
                <address uri="http://localhost:9000/services/SimpleStockQuoteService"/>
            </endpoint>
            <inSequence>
                <log level="full"/>
                <property name="OUT_ONLY" value="true"/>
            </inSequence>
        </target>
        <parameter name="transport.udp.port">9999</parameter>
        <parameter name="transport.udp.contentType">text/xml</parameter>
        <publishWSDL uri="file:repository/conf/sample/resources/proxy/sample_proxy_1.wsdl"/>
    </proxy>
</definitions>

Prerequisites:

You need to configure Synpase to use the TCP transport. The sample Axis2 client should also be setup to send TCP requests. Refer Setting Up the TCP Transport section in the sample setup guide for more details. Start Synpase using sample 267: ie synapse -sample 267
Start Axis2 server with SimpleStockService deployed

This sample is similar to Sample 266. Only difference is instead of the TCP transport we will be using the UDP transport to receive messages. Invoke the stockquote client using the following command. Note the TCP URL in the command.

ant stockquote -Daddurl=udp://localhost:9999?contentType=text/xml -Dmode=placeorder

Since we have configured the content type as text/xml for the proxy service, incoming messages will be processed as SOAP 1.1 messages. The sample Axis2 server console will print a message indicating that it has received the request:

Thu May 20 12:25:01 IST 2010 samples.services.SimpleStockQuoteService :: Accepted order #1 for : 17621 stocks of IBM at $ 73.48068475255796