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.spring.boot.process.validation;
  
  import java.util.List;
  import org.activiti.bpmn.model.BpmnModel;
  import org.activiti.bpmn.model.Event;
  import org.activiti.bpmn.model.FlowElement;
  import org.activiti.bpmn.model.FlowElementsContainer;
  import org.activiti.bpmn.model.FlowNode;
  import org.activiti.bpmn.model.Process;
  import org.activiti.bpmn.model.SignalEventDefinition;
  import org.activiti.bpmn.model.TimerEventDefinition;
  import org.activiti.validation.ValidationError;
  import org.activiti.validation.validator.Problems;
  import org.activiti.validation.validator.ProcessLevelValidator;
  
  public class AsyncPropertyValidator extends ProcessLevelValidator {
  
      @Override
      protected void executeValidation(BpmnModel bpmnModel, Process process, List<ValidationError> errors) {
          validateFlowElementsInContainer(process, errors, process);
      }
  
      protected void validateFlowElementsInContainer(
          FlowElementsContainer container,
          List<ValidationError> errors,
          Process process
      ) {
          for (FlowElement flowElement : container.getFlowElements()) {
              if (flowElement instanceof FlowElementsContainer) {
                  FlowElementsContainer subProcess = (FlowElementsContainer) flowElement;
                  validateFlowElementsInContainer(subProcess, errors, process);
              }
  
              if ((flowElement instanceof FlowNode) && ((FlowNode) flowElement).isAsynchronous()) {
                  addWarning(errors, Problems.FLOW_ELEMENT_ASYNC_NOT_AVAILABLE, process, flowElement);
              }
  
              if ((flowElement instanceof Event)) {
                  ((Event) flowElement).getEventDefinitions()
                      .stream()
                      .forEach(event -> {
                          if (event instanceof TimerEventDefinition) {
                              addWarning(errors, Problems.EVENT_TIMER_ASYNC_NOT_AVAILABLE, process, flowElement);
                          } else if (
                              (event instanceof SignalEventDefinition) && ((SignalEventDefinition) event).isAsync()
                          ) {
                              addWarning(errors, Problems.SIGNAL_ASYNC_NOT_AVAILABLE, process, flowElement);
                          }
                      });
              }
          }
      }
  }
  