Java tutorial
/**************************************************************** * 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.james.container.spring.resource; import java.io.File; import org.apache.james.filesystem.api.FileSystem; import org.springframework.context.ApplicationContext; import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.DefaultResourceLoader; import org.springframework.core.io.FileSystemResource; import org.springframework.core.io.Resource; /** * Abstract base class which load JAMES files based on the prefix. This can be * used in different {@link ApplicationContext} implementations */ public abstract class AbstractJamesResourceLoader extends DefaultResourceLoader implements JamesResourceLoader { /** * Return the {@link Resource} for the given url. If the resource can not be * found null get returned * * @see org.springframework.core.io.ResourceLoader#getResource(java.lang.String) */ public Resource getResource(String fileURL) { Resource r = null; if (fileURL.startsWith(FileSystem.CLASSPATH_PROTOCOL)) { String resourceName = fileURL.substring(FileSystem.CLASSPATH_PROTOCOL.length()); r = new ClassPathResource(resourceName); } else if (fileURL.startsWith(FileSystem.FILE_PROTOCOL)) { File file = null; if (fileURL.startsWith(FileSystem.FILE_PROTOCOL_AND_CONF)) { file = new File( getConfDirectory() + "/" + fileURL.substring(FileSystem.FILE_PROTOCOL_AND_CONF.length())); } else if (fileURL.startsWith(FileSystem.FILE_PROTOCOL_AND_VAR)) { file = new File( getVarDirectory() + "/" + fileURL.substring(FileSystem.FILE_PROTOCOL_AND_VAR.length())); } else if (fileURL.startsWith(FileSystem.FILE_PROTOCOL_ABSOLUTE)) { file = new File( getAbsoluteDirectory() + fileURL.substring(FileSystem.FILE_PROTOCOL_ABSOLUTE.length())); } else { // move to the root folder of the spring deployment file = new File(getRootDirectory() + "/" + fileURL.substring(FileSystem.FILE_PROTOCOL.length())); } r = new FileSystemResource(file); } else { return null; } return r; } }