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.listener;
  
  import java.util.Map;
  import org.activiti.bpmn.model.Task;
  import org.activiti.engine.ActivitiIllegalArgumentException;
  import org.activiti.engine.delegate.Expression;
  import org.activiti.engine.delegate.TransactionDependentTaskListener;
  import org.activiti.engine.impl.el.NoExecutionVariableScope;
  
  /**
  
   */
  public class DelegateExpressionTransactionDependentTaskListener implements TransactionDependentTaskListener {
  
      protected Expression expression;
  
      public DelegateExpressionTransactionDependentTaskListener(Expression expression) {
          this.expression = expression;
      }
  
      @Override
      public void notify(
          String processInstanceId,
          String executionId,
          Task task,
          Map<String, Object> executionVariables,
          Map<String, Object> customPropertiesMap
      ) {
          NoExecutionVariableScope scope = new NoExecutionVariableScope();
  
          Object delegate = expression.getValue(scope);
  
          if (delegate instanceof TransactionDependentTaskListener) {
              ((TransactionDependentTaskListener) delegate).notify(
                  processInstanceId,
                  executionId,
                  task,
                  executionVariables,
                  customPropertiesMap
              );
          } else {
              throw new ActivitiIllegalArgumentException(
                  "Delegate expression " +
                  expression +
                  " did not resolve to an implementation of " +
                  TransactionDependentTaskListener.class
              );
          }
      }
  
      /**
       * returns the expression text for this task listener. Comes in handy if you want to check which listeners you already have.
       */
      public String getExpressionText() {
          return expression.getExpressionText();
      }
  }
  