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.test.fieldinjection;
  
  import java.util.concurrent.atomic.AtomicInteger;
  import org.activiti.engine.delegate.DelegateExecution;
  import org.activiti.engine.delegate.DelegateHelper;
  import org.activiti.engine.delegate.Expression;
  import org.activiti.engine.delegate.JavaDelegate;
  
  /**
  
   */
  public class PrototypeDelegateExpressionBean implements JavaDelegate {
  
      public static AtomicInteger INSTANCE_COUNT = new AtomicInteger(0);
  
      private Expression fieldA;
      private Expression fieldB;
      private Expression resultVariableName;
  
      public PrototypeDelegateExpressionBean() {
          INSTANCE_COUNT.incrementAndGet();
      }
  
      @Override
      public void execute(DelegateExecution execution) {
          // just a quick check to avoid creating a specific test for it
          int nrOfFieldExtensions = DelegateHelper.getFields(execution).size();
          if (nrOfFieldExtensions != 3) {
              throw new RuntimeException("Error: 3 field extensions expected, but was " + nrOfFieldExtensions);
          }
  
          Number fieldAValue = (Number) fieldA.getValue(execution);
          Number fieldValueB = (Number) fieldB.getValue(execution);
  
          int result = fieldAValue.intValue() + fieldValueB.intValue();
          execution.setVariable(resultVariableName.getValue(execution).toString(), result);
      }
  }
  