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The ServiceMix OSWorkflow component provides workflow functionality to the ESB. You can specify one or more workflows and it's processing will start when a valid message is received.
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Note that this component is not yet available in the current smx version. |
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If you have no experience with the OSWorkflow itself, then it would be a good idea to have a look at the website http://www.opensymphony.com/osworkflow/ and reading the documentation and tutorials there. |
Installation
Installing the servicemix-osworkflow component can be done in several ways:
- drop the installer zip in an hotdeploy directory monitored by ServiceMix
- using ant tasks
Note that when using ant tasks, the component is not started, you will have to start it manually using ant tasks or a console.
Creation
Maven Archetype
You can use Maven servicemix-osworkflow-service-unit archetype to create a service unit.:
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mvn archetype:create \ -DarchetypeGroupId=org.apache.servicemix.tooling \ -DarchetypeArtifactId=servicemix-osworkflow-service-unit \ -DarchetypeVersion=2010.01 \ -DgroupId=comyour.mycompanygroup.myproductid \ -DartifactId=mycomponentyour.artifact.id \ -Dversion=your-version |
This will give you a simple workflow example to start with.
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<dir> |--- src |--- main |--- java | |--- ExampleFunction.java | |--- ExampleCondition.java |--- resources |--- exampleflow.xml |--- osworkflow.xml |--- workflows.xml |--- xbean.xml |
XBean deployment
You can deploy Service Units containing a file named xbean.xml for activating endpoints.
Note that you have to define the namespace with
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<beans xmlns:osworkflow="http://servicemix.apache.org/osworkflow/1.0">
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</beans>
Any numbers of endpoints can be specified in the xbean.xml file.
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Endpoint Configuration
The endpoint will receive messages from the NMR and will start then the processing of the workflow. You
can send both, InOnly and InOut messages to this endpoint. Sending an InOnly message will start the workflow in
a separate thread, while sending an InOut will result in sychronous processing of the workflow.
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<osworkflow:endpoint service="test:workflow" endpoint="workflowEndpoint" action="1" caller="callerName" workflowName="testflow" /> |
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