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.ObjectHelper;
026    
027    import static org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint;
028    
029    /**
030     * A composite {@link org.apache.camel.Component} which creates a {@link BindingEndpoint} from a
031     * configured {@link Binding} instance and using the optional {@link #setUriPrefix(String)}
032     * and {@link #setUriPostfix(String)} to create the underlying endpoint from the remaining URI
033     */
034    public class BindingComponent extends DefaultComponent {
035        private Binding binding;
036        private String uriPrefix;
037        private String uriPostfix;
038    
039        public BindingComponent() {
040        }
041    
042        public BindingComponent(Binding binding) {
043            this.binding = binding;
044        }
045    
046        public BindingComponent(Binding binding, String uriPrefix) {
047            this(binding);
048            this.uriPrefix = uriPrefix;
049        }
050    
051        public BindingComponent(Binding binding, String uriPrefix, String uriPostfix) {
052            this(binding, uriPrefix);
053            this.uriPostfix = uriPostfix;
054        }
055    
056        public Binding getBinding() {
057            return binding;
058        }
059    
060        public void setBinding(Binding binding) {
061            this.binding = binding;
062        }
063    
064        public String getUriPostfix() {
065            return uriPostfix;
066        }
067    
068        public void setUriPostfix(String uriPostfix) {
069            this.uriPostfix = uriPostfix;
070        }
071    
072        public String getUriPrefix() {
073            return uriPrefix;
074        }
075    
076        public void setUriPrefix(String uriPrefix) {
077            this.uriPrefix = uriPrefix;
078        }
079    
080        @Override
081        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
082            Binding bindingValue = getBinding();
083            ObjectHelper.notNull(bindingValue, "binding");
084    
085            CamelContext camelContext = getCamelContext();
086            String delegateURI = createDelegateURI(remaining, parameters);
087            Endpoint delegate = getMandatoryEndpoint(camelContext, delegateURI);
088            return new BindingEndpoint(uri, this, bindingValue, delegate);
089        }
090    
091        protected String createDelegateURI(String remaining, Map<String, Object> parameters) {
092            return getOrEmpty(uriPrefix) + remaining + getOrEmpty(uriPostfix);
093        }
094    
095        protected static String getOrEmpty(String text) {
096            return text != null ? text : "";
097        }
098    }