content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.camel.component.bean;
  
  import org.apache.camel.AsyncCallback;
  import org.apache.camel.Exchange;
  import org.apache.camel.NoSuchBeanException;
  import org.apache.camel.support.DefaultAsyncProducer;
  import org.apache.camel.support.service.ServiceHelper;
  
  /**
   * Bean {@link org.apache.camel.Producer}
   */
  public class BeanProducer extends DefaultAsyncProducer {
  
      private final BeanProcessor processor;
      private boolean beanStarted;
  
      public BeanProducer(BeanEndpoint endpoint, BeanProcessor processor) {
          super(endpoint);
          this.processor = processor;
          this.beanStarted = false;
      }
  
      @Override
      public boolean process(Exchange exchange, AsyncCallback callback) {
          return processor.process(exchange, callback);
      }
  
      @Override
      protected void doStart() throws Exception {
          super.doStart();
  
          if (processor.getBeanHolder() instanceof ConstantBeanHolder) {
              try {
                  // Start the bean if it implements Service interface and if cached
                  // so meant to be reused
                  ServiceHelper.startService(processor.getBean());
                  beanStarted = true;
              } catch (NoSuchBeanException e) {
              }
          }
      }
  
      @Override
      protected void doStop() throws Exception {
          if (beanStarted) {
              try {
                  // Stop the bean if it implements Service interface and if cached
                  // so meant to be reused
                  ServiceHelper.stopService(processor.getBean());
                  beanStarted = false;
              } catch (NoSuchBeanException e) {
              }
          }
  
          super.doStop();
      }
  }
  