org.camunda.bpm.engine.impl.bpmn.behavior.ThrowSignalEventActivityBehavior 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.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.bpmn.parser.EventSubscriptionDeclaration;
import org.camunda.bpm.engine.impl.context.Context;
import org.camunda.bpm.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.camunda.bpm.engine.impl.persistence.entity.EventSubscriptionManager;
import org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityExecution;
import org.camunda.bpm.engine.variable.VariableMap;
import java.util.List;
/**
* Defines activity behavior for signal end event and intermediate throw signal event.
*
* @author Daniel Meyer
*/
public class ThrowSignalEventActivityBehavior extends AbstractBpmnActivityBehavior {
protected final static BpmnBehaviorLogger LOG = ProcessEngineLogger.BPMN_BEHAVIOR_LOGGER;
protected final EventSubscriptionDeclaration signalDefinition;
public ThrowSignalEventActivityBehavior(EventSubscriptionDeclaration signalDefinition) {
this.signalDefinition = signalDefinition;
}
@Override
public void execute(ActivityExecution execution) throws Exception {
String businessKey = signalDefinition.getEventPayload().getBusinessKey(execution);
VariableMap variableMap = signalDefinition.getEventPayload().getInputVariables(execution);
String eventName = signalDefinition.resolveExpressionOfEventName(execution);
// trigger all event subscriptions for the signal (start and intermediate)
List signalEventSubscriptions =
findSignalEventSubscriptions(eventName, execution.getTenantId());
for (EventSubscriptionEntity signalEventSubscription : signalEventSubscriptions) {
if (isActiveEventSubscription(signalEventSubscription)) {
signalEventSubscription.eventReceived(variableMap, null, businessKey, signalDefinition.isAsync());
}
}
leave(execution);
}
protected List findSignalEventSubscriptions(String signalName, String tenantId) {
EventSubscriptionManager eventSubscriptionManager = Context.getCommandContext().getEventSubscriptionManager();
if (tenantId != null) {
return eventSubscriptionManager
.findSignalEventSubscriptionsByEventNameAndTenantIdIncludeWithoutTenantId(signalName, tenantId);
} else {
// find event subscriptions without tenant id
return eventSubscriptionManager.findSignalEventSubscriptionsByEventNameAndTenantId(signalName, null);
}
}
protected boolean isActiveEventSubscription(EventSubscriptionEntity signalEventSubscriptionEntity) {
return isStartEventSubscription(signalEventSubscriptionEntity)
|| isActiveIntermediateEventSubscription(signalEventSubscriptionEntity);
}
protected boolean isStartEventSubscription(EventSubscriptionEntity signalEventSubscriptionEntity) {
return signalEventSubscriptionEntity.getExecutionId() == null;
}
protected boolean isActiveIntermediateEventSubscription(EventSubscriptionEntity signalEventSubscriptionEntity) {
ExecutionEntity execution = signalEventSubscriptionEntity.getExecution();
return execution != null && !execution.isEnded() && !execution.isCanceled();
}
}