org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityInitStackNotifyListenerStart Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.camunda.bpm.engine.impl.pvm.runtime.operation;
import java.util.List;
import org.camunda.bpm.engine.delegate.ExecutionListener;
import org.camunda.bpm.engine.impl.pvm.PvmTransition;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityExecution;
import org.camunda.bpm.engine.impl.pvm.delegate.ModificationObserverBehavior;
import org.camunda.bpm.engine.impl.pvm.process.ActivityImpl;
import org.camunda.bpm.engine.impl.pvm.process.ScopeImpl;
import org.camunda.bpm.engine.impl.pvm.process.TransitionImpl;
import org.camunda.bpm.engine.impl.pvm.runtime.ScopeInstantiationContext;
import org.camunda.bpm.engine.impl.pvm.runtime.InstantiationStack;
import org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl;
/**
* @author Thorben Lindhauer
*
*/
public class PvmAtomicOperationActivityInitStackNotifyListenerStart extends PvmAtomicOperationActivityInstanceStart {
public String getCanonicalName() {
return "activity-init-stack-notify-listener-start";
}
protected ScopeImpl getScope(PvmExecutionImpl execution) {
ActivityImpl activity = execution.getActivity();
if (activity!=null) {
return activity;
} else {
PvmExecutionImpl parent = execution.getParent();
if (parent != null) {
return getScope(execution.getParent());
}
return execution.getProcessDefinition();
}
}
protected String getEventName() {
return ExecutionListener.EVENTNAME_START;
}
protected void eventNotificationsCompleted(PvmExecutionImpl execution) {
super.eventNotificationsCompleted(execution);
execution.activityInstanceStarted();
ScopeInstantiationContext startContext = execution.getScopeInstantiationContext();
InstantiationStack instantiationStack = startContext.getInstantiationStack();
PvmExecutionImpl propagatingExecution = execution;
ActivityImpl activity = execution.getActivity();
if (activity.getActivityBehavior() instanceof ModificationObserverBehavior) {
ModificationObserverBehavior behavior = (ModificationObserverBehavior) activity.getActivityBehavior();
List concurrentExecutions = behavior.initializeScope(propagatingExecution, 1);
propagatingExecution = (PvmExecutionImpl) concurrentExecutions.get(0);
}
// if the stack has been instantiated
if (instantiationStack.getActivities().isEmpty() && instantiationStack.getTargetActivity() != null) {
// as if we are entering the target activity instance id via a transition
propagatingExecution.setActivityInstanceId(null);
// execute the target activity with this execution
startContext.applyVariables(propagatingExecution);
propagatingExecution.setActivity(instantiationStack.getTargetActivity());
propagatingExecution.disposeScopeInstantiationContext();
propagatingExecution.performOperation(ACTIVITY_START_CREATE_SCOPE);
}
else if (instantiationStack.getActivities().isEmpty() && instantiationStack.getTargetTransition() != null) {
// as if we are entering the target activity instance id via a transition
propagatingExecution.setActivityInstanceId(null);
// execute the target transition with this execution
PvmTransition transition = instantiationStack.getTargetTransition();
startContext.applyVariables(propagatingExecution);
propagatingExecution.setActivity(transition.getSource());
propagatingExecution.setTransition((TransitionImpl) transition);
propagatingExecution.disposeScopeInstantiationContext();
propagatingExecution.performOperation(TRANSITION_START_NOTIFY_LISTENER_TAKE);
}
else {
// else instantiate the activity stack further
propagatingExecution.setActivity(null);
propagatingExecution.performOperation(ACTIVITY_INIT_STACK);
}
}
}