Web Service Executor Sample

This sample explains how the Web Service Executor can be used in lifecycle configurations to invoke a Web Service in a synchronous manner.

Prerequisites

• Download Apache Axis2 and SoapUI. 

Steps To Get This Sample To Work

1. Start the Apache Axis2 server and add the AdderService.aar file which can be downloaded here, into AXIS2_HOME/repository/services.

2. Go to http://localhost:8080/axis2/services/ and get AdderService from this. You can copy the WSDL location which should look like the following: http://localhost:8080/axis2/services/AdderService?wsdl.

3. Start SoapUI and create a new project and give the WSDL path that was obtained in step 2.

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4. Send an request to the Web Service using the SoapUI. Add some random values to args0 and args1.

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   The response can be seen through SoapUI after successful service invocation.

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5. Start WSO2 Governance Registry and go to Extensions > Configure > Lifecycles and click on Add New Lifecycle.

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6. Add the following segment under the datamodel tag in Development state and save the Lifecycle.

   <data name="transitionExecution"> <execution forEvent="Promote" class="org.wso2.carbon.governance.registry.extensions.executors.WSExecutor"> <parameter name="async" value="false"/> <parameter name="save.type" value="property"/> <parameter name="save.name" value="response"/> <parameter name="response.xpath" value="//ns:return"/> <parameter name="response.namespace" value="http://ws.apache.org/axis2"/> <parameter name="response.namespace.prefix" value="ns"/> <parameter name="epr" value="http://localhost:8080/axis2/services/AdderService.AdderServiceHttpSoap11Endpoint/"/> <parameter name="payload"> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:axis="http://ws.apache.org/axis2"> <soapenv:Header/> <soapenv:Body> <axis:add> <axis:args0>5</axis:args0> <axis:args1>6</axis:args1> </axis:add> </soapenv:Body> </soapenv:Envelope> </parameter> </execution> </data>
   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:axis="http://ws.apache.org/axis2"> <soapenv:Header/> <soapenv:Body> <axis:add> <axis:args0>5</axis:args0> <axis:args1>6</axis:args1> </axis:add> </soapenv:Body> </soapenv:Envelope>

7. Create a new API and add the “SampleLifeCycle” as the lifecycle. 
   

   
   

8. Do an Promote operation. The response value is saved in the property when the promote operation is successful.

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