org.camunda.bpm.engine.impl.event.ConditionalEventHandler 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.event;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityBehavior;
import org.camunda.bpm.engine.impl.pvm.process.ActivityImpl;
import org.camunda.bpm.engine.impl.bpmn.behavior.ConditionalEventBehavior;
import org.camunda.bpm.engine.impl.core.variable.event.VariableEvent;
/**
*
* @author Christopher Zell
*/
public class ConditionalEventHandler implements EventHandler {
@Override
public String getEventHandlerType() {
return EventType.CONDITONAL.name();
}
@Override
public void handleEvent(EventSubscriptionEntity eventSubscription, Object payload, Object localPayload, Object payloadToTriggeredScope, String businessKey, CommandContext commandContext) {
VariableEvent variableEvent;
if (payload == null || payload instanceof VariableEvent) {
variableEvent = (VariableEvent) payload;
} else {
throw new ProcessEngineException("Payload have to be " + VariableEvent.class.getName() + ", to evaluate condition.");
}
ActivityImpl activity = eventSubscription.getActivity();
ActivityBehavior activityBehavior = activity.getActivityBehavior();
if (activityBehavior instanceof ConditionalEventBehavior) {
ConditionalEventBehavior conditionalBehavior = (ConditionalEventBehavior) activityBehavior;
conditionalBehavior.leaveOnSatisfiedCondition(eventSubscription, variableEvent);
} else {
throw new ProcessEngineException("Conditional Event has not correct behavior: " + activityBehavior);
}
}
}