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.impl; 018 019 import org.apache.camel.CamelContext; 020 import org.apache.camel.Component; 021 import org.apache.camel.Endpoint; 022 import org.apache.camel.EndpointResolver; 023 import org.apache.camel.util.FactoryFinder; 024 import org.apache.camel.util.ObjectHelper; 025 026 /** 027 * An implementation of {@link org.apache.camel.EndpointResolver} that delegates to 028 * other {@link EndpointResolver} which are selected based on the uri prefix. 029 * 030 * The delegate {@link EndpointResolver} are associated with uri prefixes by 031 * adding a property file with the same uri prefix in the 032 * META-INF/services/org/apache/camel/EndpointResolver/ 033 * directory on the classpath. 034 * 035 * @version $Revision: 520985 $ 036 */ 037 public class DefaultEndpointResolver<E> implements EndpointResolver<E> { 038 static final private FactoryFinder endpointResolverFactory = new FactoryFinder("META-INF/services/org/apache/camel/EndpointResolver/"); 039 040 public Endpoint<E> resolveEndpoint(CamelContext container, String uri) throws Exception { 041 EndpointResolver resolver = getDelegate(uri); 042 return resolver.resolveEndpoint(container, uri); 043 } 044 045 public Component resolveComponent(CamelContext container, String uri) throws Exception { 046 EndpointResolver resolver = getDelegate(uri); 047 return resolver.resolveComponent(container, uri); 048 } 049 050 private EndpointResolver getDelegate(String uri) { 051 String splitURI[] = ObjectHelper.splitOnCharacter(uri, ":", 2); 052 if( splitURI[1] == null ) 053 throw new IllegalArgumentException("Invalid URI, it did not contain a scheme: "+uri); 054 EndpointResolver resolver; 055 try { 056 resolver = (EndpointResolver) endpointResolverFactory.newInstance(splitURI[0]); 057 } catch (Throwable e) { 058 throw new IllegalArgumentException("Invalid URI, no EndpointResolver registered for scheme : "+splitURI[0], e); 059 } 060 return resolver; 061 } 062 063 }