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 */
017package org.apache.camel.component.binding;
018
019import java.util.Map;
020
021import org.apache.camel.CamelContext;
022import org.apache.camel.Endpoint;
023import org.apache.camel.impl.DefaultComponent;
024import org.apache.camel.spi.Binding;
025import org.apache.camel.util.CamelContextHelper;
026
027import 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 */
034public 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}