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.binding;
018    
019    import java.util.Map;
020    
021    import org.apache.camel.CamelContext;
022    import org.apache.camel.Endpoint;
023    import org.apache.camel.impl.DefaultComponent;
024    import org.apache.camel.spi.Binding;
025    import org.apache.camel.util.CamelContextHelper;
026    
027    import static org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint;
028    
029    /**
030     * A Binding component using the URI form <code>binding:nameOfBinding:endpointURI</code>
031     * to extract the binding name which is then resolved from the registry and used to create a
032     * {@link BindingEndpoint} from the underlying {@link Endpoint}
033     */
034    public class BindingNameComponent extends DefaultComponent {
035        protected static final String BAD_FORMAT_MESSAGE = "URI should be of the format binding:nameOfBinding:endpointURI";
036    
037        @Override
038        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
039            CamelContext camelContext = getCamelContext();
040            int idx = remaining.indexOf(":");
041            if (idx <= 0) {
042                throw new IllegalArgumentException(BAD_FORMAT_MESSAGE);
043            }
044            String bindingName = remaining.substring(0, idx);
045            String delegateURI = remaining.substring(idx + 1);
046            if (delegateURI.isEmpty()) {
047                throw new IllegalArgumentException(BAD_FORMAT_MESSAGE);
048            }
049            Binding binding = CamelContextHelper.mandatoryLookup(camelContext, bindingName, Binding.class);
050            Endpoint delegate = getMandatoryEndpoint(camelContext, delegateURI);
051            return new BindingEndpoint(uri, this, binding,  delegate);
052        }
053    }