org.camunda.bpm.engine.impl.bpmn.behavior.EventBasedGatewayActivityBehavior 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.bpmn.behavior;
import org.camunda.bpm.engine.impl.bpmn.parser.ConditionalEventDefinition;
import org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityBehavior;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityExecution;
import org.camunda.bpm.engine.impl.pvm.process.ActivityImpl;
/**
* @author Daniel Meyer
*/
public class EventBasedGatewayActivityBehavior extends FlowNodeActivityBehavior {
@Override
public void execute(ActivityExecution execution) throws Exception {
// If conditional events exist after the event based gateway they should be evaluated.
// If a condition is satisfied the event based gateway should be left,
// otherwise the event based gateway is a wait state
ActivityImpl eventBasedGateway = (ActivityImpl) execution.getActivity();
for (ActivityImpl act : eventBasedGateway.getEventActivities()) {
ActivityBehavior activityBehavior = act.getActivityBehavior();
if (activityBehavior instanceof ConditionalEventBehavior) {
ConditionalEventBehavior conditionalEventBehavior = (ConditionalEventBehavior) activityBehavior;
ConditionalEventDefinition conditionalEventDefinition = conditionalEventBehavior.getConditionalEventDefinition();
if (conditionalEventDefinition.tryEvaluate(execution)) {
((ExecutionEntity) execution).executeEventHandlerActivity(conditionalEventDefinition.getConditionalActivity());
return;
}
}
}
}
}