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.context;
018    
019    import java.util.Map;
020    
021    import org.apache.camel.Component;
022    import org.apache.camel.Endpoint;
023    import org.apache.camel.impl.DefaultComponent;
024    import org.apache.camel.util.ObjectHelper;
025    import org.slf4j.Logger;
026    import org.slf4j.LoggerFactory;
027    
028    /**
029     * Supports the explicit and verbose URIs of the form <tt>context:camelContextId:someEndpoint</tt> to access
030     * a local endpoint inside an external {@link org.apache.camel.CamelContext}.
031     * <p/>
032     * Typically there's no need to use this level of verbosity, you can just use <tt>camelContextId:someEndpoint</tt>
033     */
034    public class QualifiedContextComponent extends DefaultComponent {
035        private static final transient Logger LOG = LoggerFactory.getLogger(QualifiedContextComponent.class);
036    
037        @Override
038        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
039            String splitURI[] = ObjectHelper.splitOnCharacter(remaining, ":", 2);
040            if (splitURI[1] != null) {
041                String contextId = splitURI[0];
042                String localEndpoint = splitURI[1];
043                Component component = getCamelContext().getComponent(contextId);
044                if (component != null) {
045                    if (LOG.isDebugEnabled()) {
046                        LOG.debug("Attempting to create local endpoint: " + localEndpoint + " inside the component: " + component);
047                    }
048                    return component.createEndpoint(localEndpoint);
049                }
050            }
051    
052            return null;
053        }
054    
055    }