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.cmd;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.ActivitiIllegalArgumentException;
  import org.activiti.engine.impl.event.MessageEventHandler;
  import org.activiti.engine.impl.interceptor.CommandContext;
  import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
  import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntityManager;
  import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
  
  /**
  
  
   */
  public class MessageEventReceivedCmd extends NeedsActiveExecutionCmd<Void> {
  
      private static final long serialVersionUID = 1L;
  
      protected final Map<String, Object> payload;
      protected final String messageName;
      protected final boolean async;
  
      public MessageEventReceivedCmd(String messageName, String executionId, Map<String, Object> processVariables) {
          super(executionId);
          this.messageName = messageName;
  
          if (processVariables != null) {
              this.payload = new HashMap<String, Object>(processVariables);
          } else {
              this.payload = null;
          }
          this.async = false;
      }
  
      public MessageEventReceivedCmd(String messageName, String executionId, boolean async) {
          super(executionId);
          this.messageName = messageName;
          this.payload = null;
          this.async = async;
      }
  
      protected Void execute(CommandContext commandContext, ExecutionEntity execution) {
          if (messageName == null) {
              throw new ActivitiIllegalArgumentException("messageName cannot be null");
          }
  
          executeInternal(commandContext, execution);
          return null;
      }
  
      protected void executeInternal(CommandContext commandContext, ExecutionEntity execution) {
          EventSubscriptionEntityManager eventSubscriptionEntityManager =
              commandContext.getEventSubscriptionEntityManager();
          List<EventSubscriptionEntity> eventSubscriptions =
              eventSubscriptionEntityManager.findEventSubscriptionsByNameAndExecution(
                  MessageEventHandler.EVENT_HANDLER_TYPE,
                  messageName,
                  executionId
              );
  
          if (eventSubscriptions.isEmpty()) {
              throw new ActivitiException(
                  "Execution with id '" +
                  executionId +
                  "' does not have a subscription to a message event with name '" +
                  messageName +
                  "'"
              );
          }
  
          // there can be only one:
          EventSubscriptionEntity eventSubscriptionEntity = eventSubscriptions.get(0);
          eventSubscriptionEntityManager.eventReceived(eventSubscriptionEntity, payload, async);
      }
  }
  