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.beanclass;
  
  import java.util.Map;
  
  import org.apache.camel.Endpoint;
  import org.apache.camel.component.bean.BeanComponent;
  import org.apache.camel.component.bean.BeanHolder;
  import org.apache.camel.component.bean.ConstantBeanHolder;
  import org.apache.camel.component.bean.ConstantTypeBeanHolder;
  import org.apache.camel.component.bean.ParameterMappingStrategy;
  import org.apache.camel.component.bean.ParameterMappingStrategyHelper;
  import org.apache.camel.util.PropertiesHelper;
  
  /**
   * The <a href="http://camel.apache.org/class.html">Class Component</a> is for binding JavaBeans to Camel message
   * exchanges based on class name.
   * <p/>
   * This component is an extension to the {@link org.apache.camel.component.bean.BeanComponent}.
   */
  @org.apache.camel.spi.annotations.Component("class")
  public class ClassComponent extends BeanComponent {
  
      private ParameterMappingStrategy parameterMappingStrategy;
      private BeanComponent beanComponent;
  
      public ClassComponent() {
      }
  
      @Override
      protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
          ClassEndpoint endpoint = new ClassEndpoint(uri, this);
          endpoint.setBeanName(remaining);
  
          // bean name is the FQN
          String name = endpoint.getBeanName();
          Class<?> clazz = getCamelContext().getClassResolver().resolveMandatoryClass(name);
  
          // the bean.xxx options is for the bean
          Map<String, Object> options = PropertiesHelper.extractProperties(parameters, "bean.");
          endpoint.setParameters(options);
  
          BeanHolder holder;
  
          // if there is options then we need to create a bean instance
          if (!options.isEmpty()) {
              // create bean
              Object bean = getCamelContext().getInjector().newInstance(clazz);
  
              // now set additional properties on it
              setProperties(bean, options);
  
              holder = new ConstantBeanHolder(bean, getCamelContext(), parameterMappingStrategy, beanComponent);
          } else {
              // otherwise refer to the type
              holder = new ConstantTypeBeanHolder(clazz, getCamelContext(), parameterMappingStrategy, beanComponent);
          }
  
          validateParameters(uri, options, null);
  
          // and register the bean as a holder on the endpoint
          endpoint.setBeanHolder(holder);
  
          return endpoint;
      }
  
      @Override
      protected void doInit() throws Exception {
          parameterMappingStrategy = ParameterMappingStrategyHelper.createParameterMappingStrategy(getCamelContext());
          beanComponent = getCamelContext().getComponent("bean", BeanComponent.class);
      }
  }
  