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;
018    
019    import org.apache.camel.CamelContext;
020    import org.springframework.core.io.DefaultResourceLoader;
021    import org.springframework.core.io.Resource;
022    import org.springframework.util.Assert;
023    
024    /**
025     * A Camel specific {@link org.springframework.core.io.ResourceLoader} which can load
026     * resources from classpath using the Camel {@link org.apache.camel.spi.ClassResolver}.
027     */
028    public class CamelResourceLoader extends DefaultResourceLoader {
029    
030        private final CamelContext camelContext;
031    
032        public CamelResourceLoader(CamelContext camelContext) {
033            this.camelContext = camelContext;
034        }
035    
036        @Override
037        public Resource getResource(String location) {
038            Assert.notNull(location, "Location must not be null");
039            if (location.startsWith(CLASSPATH_URL_PREFIX)) {
040                return new CamelClassPathResource(camelContext.getClassResolver(), location.substring(CLASSPATH_URL_PREFIX.length()), getClassLoader());
041            }
042            return super.getResource(location);
043        }
044    
045        @Override
046        protected Resource getResourceByPath(String path) {
047            return new CamelClassPathResource(camelContext.getClassResolver(), path, getClassLoader());
048        }
049    
050    }