Eventing is used to send notifications when a particular action is completed, such as when an operation with particular arguments is invoked or when a specific response is returned. Notifications are enabled in WSO2 DSS Enterprise Integrator (WSO2 EI) using input and output event triggers.
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- In the sample, we define a specific topic for events to be published, and an email address is added as a subscription for that topic. In order to allow mails to be sent, we have to configure the mail sender in the client Axis2 configuration. A sample
axis2.xmlfile for the client configuration is stored in<DSS<EI_HOME>/samples/data-services/resources/sample_axis2_client.xml. Use it to replace the<DSS<EI_HOME>/repository/conf/axis2/axis2_client.xmlfile. Theaxis2_client.xmlfile contains an already configured mail sender section and is ready to be used. - Edit the data service by adding a valid email address: Here we use the XML Edit option to edit the dataservice. In the XML view, replace all occurences of "test@test.com" with your own email address and restart the server.
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- Log in to the management console and select Upload under Data Service menu.
- Select the EventingSample.dbs file from the
<DSS<EI_HOME>/samples/data-services/dbs/rdbms/folder and click Upload. - If the file is deployed successfully, the Deployed Services window appears with the new data service listed. Alternatively, copy the file to the
<DSS<EI_HOME>/repository/deployment/server/dataservicesfolder. It will be deployed instantly as hot deployment, which is enabled in Data Services Server WSO2 EI by default.
See Uploading a Created Data Service.
Running the Sample
The sample service can be run using the TryIt toolTryIt tool, which is bundled with the WSO2 Data Services ServerEI, or a code-generated java client sample as discussed in the Data Services Clients section.
Follow the steps below to demonstrate this functionality using the TryIt tool:
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