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.validation.validator.impl;
  
  import java.util.List;
  import org.activiti.bpmn.model.BpmnModel;
  import org.activiti.bpmn.model.EventListener;
  import org.activiti.bpmn.model.ImplementationType;
  import org.activiti.bpmn.model.Process;
  import org.activiti.validation.ValidationError;
  import org.activiti.validation.validator.Problems;
  import org.activiti.validation.validator.ProcessLevelValidator;
  
  /**
  
   */
  public class ActivitiEventListenerValidator extends ProcessLevelValidator {
  
      @Override
      protected void executeValidation(BpmnModel bpmnModel, Process process, List<ValidationError> errors) {
          List<EventListener> eventListeners = process.getEventListeners();
          if (eventListeners != null) {
              for (EventListener eventListener : eventListeners) {
                  if (
                      eventListener.getImplementationType() != null &&
                      eventListener
                          .getImplementationType()
                          .equals(ImplementationType.IMPLEMENTATION_TYPE_INVALID_THROW_EVENT)
                  ) {
                      addError(errors, Problems.EVENT_LISTENER_INVALID_THROW_EVENT_TYPE, process, eventListener);
                  } else if (
                      eventListener.getImplementationType() == null || eventListener.getImplementationType().length() == 0
                  ) {
                      addError(errors, Problems.EVENT_LISTENER_IMPLEMENTATION_MISSING, process, eventListener);
                  } else if (eventListener.getImplementationType() != null) {
                      if (
                          !ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(eventListener.getImplementationType()) &&
                          !ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(
                              eventListener.getImplementationType()
                          ) &&
                          !ImplementationType.IMPLEMENTATION_TYPE_THROW_SIGNAL_EVENT.equals(
                              eventListener.getImplementationType()
                          ) &&
                          !ImplementationType.IMPLEMENTATION_TYPE_THROW_GLOBAL_SIGNAL_EVENT.equals(
                              eventListener.getImplementationType()
                          ) &&
                          !ImplementationType.IMPLEMENTATION_TYPE_THROW_MESSAGE_EVENT.equals(
                              eventListener.getImplementationType()
                          ) &&
                          !ImplementationType.IMPLEMENTATION_TYPE_THROW_ERROR_EVENT.equals(
                              eventListener.getImplementationType()
                          )
                      ) {
                          addError(errors, Problems.EVENT_LISTENER_INVALID_IMPLEMENTATION, process, eventListener);
                      }
                  }
              }
          }
      }
  }
  