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.behavior;
  
  import java.util.List;
  import org.activiti.bpmn.model.MessageEventDefinition;
  import org.activiti.engine.delegate.DelegateExecution;
  import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
  import org.activiti.engine.history.DeleteReason;
  import org.activiti.engine.impl.bpmn.parser.factory.MessageExecutionContext;
  import org.activiti.engine.impl.context.Context;
  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;
  import org.activiti.engine.impl.persistence.entity.MessageEventSubscriptionEntity;
  
  public class IntermediateCatchMessageEventActivityBehavior extends IntermediateCatchEventActivityBehavior {
  
      private static final long serialVersionUID = 1L;
  
      protected final MessageEventDefinition messageEventDefinition;
      protected final MessageExecutionContext messageExecutionContext;
  
      public IntermediateCatchMessageEventActivityBehavior(
          MessageEventDefinition messageEventDefinition,
          MessageExecutionContext messageExecutionContext
      ) {
          this.messageEventDefinition = messageEventDefinition;
          this.messageExecutionContext = messageExecutionContext;
      }
  
      public void execute(DelegateExecution execution) {
          CommandContext commandContext = Context.getCommandContext();
  
          MessageEventSubscriptionEntity subscription = messageExecutionContext.createMessageEventSubscription(
              commandContext,
              execution
          );
          if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
              commandContext
                  .getProcessEngineConfiguration()
                  .getEventDispatcher()
                  .dispatchEvent(
                      ActivitiEventBuilder.createMessageWaitingEvent(
                          execution,
                          subscription.getEventName(),
                          subscription.getConfiguration()
                      )
                  );
          }
      }
  
      @Override
      public void trigger(DelegateExecution execution, String triggerName, Object triggerData) {
          ExecutionEntity executionEntity = deleteMessageEventSubScription(execution);
          leaveIntermediateCatchEvent(executionEntity);
      }
  
      @Override
      public void eventCancelledByEventGateway(DelegateExecution execution) {
          deleteMessageEventSubScription(execution);
          Context.getCommandContext()
              .getExecutionEntityManager()
              .deleteExecutionAndRelatedData((ExecutionEntity) execution, DeleteReason.EVENT_BASED_GATEWAY_CANCEL);
      }
  
      protected ExecutionEntity deleteMessageEventSubScription(DelegateExecution execution) {
          ExecutionEntity executionEntity = (ExecutionEntity) execution;
          // Should we use triggerName and triggerData, because message name expression can change?
          String messageName = messageExecutionContext.getMessageName(execution);
  
          EventSubscriptionEntityManager eventSubscriptionEntityManager =
              Context.getCommandContext().getEventSubscriptionEntityManager();
          List<EventSubscriptionEntity> eventSubscriptions = executionEntity.getEventSubscriptions();
          for (EventSubscriptionEntity eventSubscription : eventSubscriptions) {
              if (
                  eventSubscription instanceof MessageEventSubscriptionEntity &&
                  eventSubscription.getEventName().equals(messageName)
              ) {
                  eventSubscriptionEntityManager.delete(eventSubscription);
              }
          }
          return executionEntity;
      }
  
      public MessageEventDefinition getMessageEventDefinition() {
          return messageEventDefinition;
      }
  
      public MessageExecutionContext getMessageExecutionContext() {
          return messageExecutionContext;
      }
  }
  