You can follow eduk8u these steps one by one to override:
import org.camunda.bpm.model.bpmn.BpmnModelInstance;
import org.camunda.bpm.model.bpmn.instance.FlowElement;
import org.camunda.bpm.model.bpmn.instance.Process;
import org.camunda.bpm.model.xml.ModelBuilder;
import org.camunda.bpm.model.xml.impl.ModelInstanceImpl;
import org.camunda.bpm.model.xml.impl.util.ModelUtil;
import org.camunda.bpm.model.xml.instance.ModelElementInstance;
import org.camunda.bpm.model.xml.type.ModelElementType;
import org.camunda.bpm.model.xml.type.ModelElementTypeBuilder;
import org.camunda.bpm.model.xml.type.child.SequenceBuilder;
public class CustomBpmnFactory extends BpmnFactory {
@Override
protected String _ensureId(ModelElementInstance element) {
// Custom logic to generate or manipulate the ID
String originalId = super._ensureId(element);
String modifiedId = "custom_" + originalId;
return modifiedId;
}
public static void main(String[] args) {
// Example usage
ModelBuilder modelBuilder = ModelUtil.createModelBuilder();
ModelElementTypeBuilder typeBuilder = modelBuilder.defineType(Process.class, "bpmn:Process")
.namespaceUri(BpmnModelInstance.CAMUNDA_NS)
.extendsType(org.camunda.bpm.model.bpmn.impl.instance.ProcessImpl.class)
.instanceProvider(new BpmnModelInstanceImpl.InstanceProvider<Process>() {
public Process newInstance(ModelTypeInstanceContext instanceContext) {
return new ProcessImpl(instanceContext);
}
});
SequenceBuilder sequenceBuilder = typeBuilder.sequence();
// ... Define other BPMN elements as needed
BpmnModelInstance modelInstance = new BpmnModelInstanceImpl(modelBuilder, null);
Process process = modelInstance.newInstance(Process.class);
process.setId("myProcess");
modelInstance.setDefinitions(process);
CustomBpmnFactory customFactory = new CustomBpmnFactory();
customFactory.setBpmnModelInstance(modelInstance);
// ... Use the CustomBpmnFactory for further operations
}
@s.chung Extending our tools, in particular any component such as bpmnFactory you’d proceed as following:
Create your custom extension class MyCustomBpmnFactory extends BpmnFactory. You have to adhere to the existing service contract. I.e. it is fundamental that IDs are actually unique etc.
Provide MyCustomBpmnFactory as a service to bpmn-js by exposing it as an extension module
import BpmnFactory from './MyCustomBpmnFactory';
import BpmnModeler from 'bpmn-js/lib/Modeler';
// re-declare `bpmnFactory` to be provided through
// your custom service
const extensionModule = {
'bpmnFactory': [ 'type', MyCustomBpmnFactory ]
};
// bootstrap your BPMN editor using the custom extension module:
const bpmnModeler = new BpmnModeler({
additionalModules: [
extensionModule
]
});
const bpmnFactory = bpmnModeler.get('bpmnFactory');
// instance of MyCustomBpmnFactory