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;
  
  import jakarta.el.CompositeELResolver;
  import java.util.Map;
  import org.activiti.core.el.ReadOnlyMapELResolver;
  import org.activiti.engine.impl.el.ExpressionManager;
  import org.springframework.context.ApplicationContext;
  
  /**
   * {@link ExpressionManager} that exposes the full application-context or a limited set of beans in expressions.
   *
  
   */
  public class SpringExpressionManager extends ExpressionManager {
  
      protected ApplicationContext applicationContext;
  
      /**
       * @param applicationContext
       *          the applicationContext to use. Ignored when 'beans' parameter is not null.
       * @param beans
       *          a map of custom beans to expose. If null, all beans in the application-context will be exposed.
       */
      public SpringExpressionManager(ApplicationContext applicationContext, Map<Object, Object> beans) {
          super(beans);
          this.applicationContext = applicationContext;
      }
  
      @Override
      protected void addBeansResolver(CompositeELResolver elResolver) {
          if (beans != null) {
              // Only expose limited set of beans in expressions
              elResolver.add(new ReadOnlyMapELResolver(beans));
          } else {
              // Expose full application-context in expressions
              elResolver.add(new ApplicationContextElResolver(applicationContext));
          }
      }
  }
  