/* Licensed under the Apache License, Version 2.0 (the "License");
* 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.activiti.engine.impl.event;
import java.util.Map;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.impl.bpmn.behavior.BoundaryEventActivityBehavior;
import org.activiti.engine.impl.bpmn.behavior.EventSubProcessStartEventActivityBehavior;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
import org.activiti.engine.impl.pvm.delegate.ActivityBehavior;
import org.activiti.engine.impl.pvm.process.ActivityImpl;
/**
* @author Daniel Meyer
* @author Falko Menge
*/
public abstract class AbstractEventHandler implements EventHandler {
public void handleEvent(EventSubscriptionEntity eventSubscription, Object payload, CommandContext commandContext) {
ExecutionEntity execution = eventSubscription.getExecution();
ActivityImpl activity = eventSubscription.getActivity();
if (activity == null) {
throw new ActivitiException("Error while sending signal for event subscription '" + eventSubscription.getId() + "': "
+ "no activity associated with event subscription");
}
if (payload instanceof Map) {
@SuppressWarnings("unchecked")
Map<String, Object> processVariables = (Map<String, Object>) payload;
execution.setVariables(processVariables);
}
ActivityBehavior activityBehavior = activity.getActivityBehavior();
if (activityBehavior instanceof BoundaryEventActivityBehavior
|| activityBehavior instanceof EventSubProcessStartEventActivityBehavior) {
try {
activityBehavior.execute(execution);
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new ActivitiException("exception while sending signal for event subscription '" + eventSubscription + "':" + e.getMessage(), e);
}
} else { // not boundary
if (!activity.equals( execution.getActivity() )) {
execution.setActivity(activity);
}
execution.signal(eventSubscription.getEventName(), payload);
}
}
}