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.ref;
  
  import org.apache.camel.Category;
  import org.apache.camel.Component;
  import org.apache.camel.Consumer;
  import org.apache.camel.DelegateEndpoint;
  import org.apache.camel.Endpoint;
  import org.apache.camel.Processor;
  import org.apache.camel.Producer;
  import org.apache.camel.spi.Metadata;
  import org.apache.camel.spi.UriEndpoint;
  import org.apache.camel.spi.UriPath;
  import org.apache.camel.support.CamelContextHelper;
  import org.apache.camel.support.DefaultEndpoint;
  
  /**
   * Route messages to an endpoint looked up dynamically by name in the Camel Registry.
   */
  @UriEndpoint(firstVersion = "1.2.0", scheme = "ref", title = "Ref", syntax = "ref:name",
               remote = false, category = { Category.CORE })
  public class RefEndpoint extends DefaultEndpoint implements DelegateEndpoint {
  
      private volatile Endpoint endpoint;
  
      @UriPath
      @Metadata(required = true)
      private String name;
  
      public RefEndpoint(String endpointUri, Component component) {
          super(endpointUri, component);
      }
  
      @Override
      public boolean isRemote() {
          return false;
      }
  
      public String getName() {
          return name;
      }
  
      /**
       * Name of endpoint to lookup in the registry.
       */
      public void setName(String name) {
          this.name = name;
      }
  
      @Override
      public Producer createProducer() throws Exception {
          return endpoint.createProducer();
      }
  
      @Override
      public Consumer createConsumer(Processor processor) throws Exception {
          return endpoint.createConsumer(processor);
      }
  
      @Override
      public Endpoint getEndpoint() {
          return endpoint;
      }
  
      @Override
      protected void doInit() throws Exception {
          if (endpoint == null) {
              // endpoint is mandatory
              endpoint = CamelContextHelper.mandatoryLookup(getCamelContext(), name, Endpoint.class);
              if (getCamelContext().hasEndpoint(getEndpoint().getEndpointUri()) == null
                      || getCamelContext().hasEndpoint(getEndpoint().getEndpointUri()) != endpoint) {
                  getCamelContext().addEndpoint(getEndpoint().getEndpointUri(), endpoint);
              }
          }
          super.doInit();
      }
  
  }
  