camunda
Spring boot: starting a camunda process
For a project we had to develop a spring boot webservice including the camunda rest engine to controll the process.
When including and starting the camunda process by the autowired capablity we had the problem the just a empty process was launched, not using our deployed process definition.
Solution:
To tackle this problem we used spring boots EventLister annoation to know when the application had fully deployed the process and then starting it.
@EventListener
public void processPostDeploy(PostDeployEvent event) {
instance = runtimeService.startProcessInstanceByKey("Process");
//..
}
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Camunda framework provides possibility to configure service call from model directly, what reduces amount of code.
1. Create service task in BPMN modeler
2. Open Properties Panel
3. Configure Connector: Connector Id, Input and Output parameters (of your service), add Script as Output parameter in case it‘s necessary
4. Use process model in your application with BPMN engine as usually.
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Configure service call from BPMN model (Camunda framework)
BPMN uses graphical representation of business processes. Some parts of business process can use web-services. In this case it is necessary to configure web service call.
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