| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component; |
| |
| import org.apache.camel.impl.DefaultComponent; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.springframework.core.io.DefaultResourceLoader; |
| import org.springframework.core.io.Resource; |
| import org.springframework.core.io.ResourceLoader; |
| |
| /** |
| * A useful base class for components which depend on a resource |
| * such as things like Velocity or XQuery based components. |
| * |
| * @version |
| */ |
| public abstract class ResourceBasedComponent extends DefaultComponent { |
| protected final transient Logger log = LoggerFactory.getLogger(getClass()); |
| private ResourceLoader resourceLoader = new DefaultResourceLoader(); |
| |
| public ResourceLoader getResourceLoader() { |
| return resourceLoader; |
| } |
| |
| public void setResourceLoader(ResourceLoader resourceLoader) { |
| this.resourceLoader = resourceLoader; |
| } |
| |
| protected Resource resolveMandatoryResource(String uri) { |
| Resource resource = getResourceLoader().getResource(uri); |
| if (resource == null) { |
| throw new IllegalArgumentException("Could not find resource for URI: " + uri + " using: " + getResourceLoader()); |
| } else { |
| return resource; |
| } |
| } |
| |
| } |