001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.component.ref;
018
019 import java.util.Map;
020
021 import org.apache.camel.Endpoint;
022 import org.apache.camel.Exchange;
023 import org.apache.camel.impl.DefaultComponent;
024
025 /**
026 * Component for lookup of existing endpoints bound in the {@link org.apache.camel.spi.Registry}.
027 * <p/>
028 * This component uses the <tt>ref:</tt> notation instead of the mostly common <tt>uri:</tt> notation.
029 */
030 public class RefComponent extends DefaultComponent<Exchange> {
031
032 protected Endpoint createEndpoint(String uri, String remaining, Map parameters) throws Exception {
033 // lets remove the scheme from the URI
034 int index = uri.indexOf(":");
035 String name = uri;
036 if (index >= 0) {
037 name = uri.substring(index + 1);
038 }
039 return lookupEndpoint(name, parameters);
040 }
041
042 /**
043 * Looks up an endpoint for a given name.
044 *
045 * Derived classes could use this name as a logical name and look it up on some registry.
046 *
047 * The default implementation will look up the name in the registry of the {@link #getCamelContext()} property
048 */
049 protected Endpoint lookupEndpoint(String name, Map parameters) {
050 return getCamelContext().getRegistry().lookup(name, Endpoint.class);
051 }
052
053 }