content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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.bpmn.helper;
  
  import java.util.List;
  import org.activiti.engine.ActivitiIllegalArgumentException;
  import org.activiti.engine.delegate.event.ActivitiEvent;
  import org.activiti.engine.delegate.event.ActivitiEventListener;
  import org.activiti.engine.impl.context.Context;
  import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
  import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntityManager;
  import org.activiti.engine.impl.persistence.entity.MessageEventSubscriptionEntity;
  
  /**
   * An {@link ActivitiEventListener} that throws a message event when an event is dispatched to it. Sends the message to the execution the event was fired from. If the execution is not subscribed to a
   * message, the process-instance is checked.
   *
  
   *
   */
  public class MessageThrowingEventListener extends BaseDelegateEventListener {
  
      protected String messageName;
      protected Class<?> entityClass;
  
      @Override
      public void onEvent(ActivitiEvent event) {
          if (isValidEvent(event)) {
              if (event.getProcessInstanceId() == null) {
                  throw new ActivitiIllegalArgumentException(
                      "Cannot throw process-instance scoped message, since the dispatched event is not part of an ongoing process instance"
                  );
              }
  
              EventSubscriptionEntityManager eventSubscriptionEntityManager =
                  Context.getCommandContext().getEventSubscriptionEntityManager();
              List<MessageEventSubscriptionEntity> subscriptionEntities =
                  eventSubscriptionEntityManager.findMessageEventSubscriptionsByProcessInstanceAndEventName(
                      event.getProcessInstanceId(),
                      messageName
                  );
  
              for (EventSubscriptionEntity messageEventSubscriptionEntity : subscriptionEntities) {
                  eventSubscriptionEntityManager.eventReceived(messageEventSubscriptionEntity, null, false);
              }
          }
      }
  
      public void setMessageName(String messageName) {
          this.messageName = messageName;
      }
  
      @Override
      public boolean isFailOnException() {
          return true;
      }
  }
  