Spring Framework example source code file (FileSystemResourceLoader.java)

This example Spring Framework source code file (FileSystemResourceLoader.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

contextresource, defaultresourceloader, defaultresourceloader, filesystemcontextresource, filesystemcontextresource, filesystemresource, filesystemresource, filesystemresourceloader, resource, resource, string

The Spring Framework FileSystemResourceLoader.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed 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.springframework.core.io;

/**
 * {@link ResourceLoader} implementation that resolves plain paths as
 * file system resources rather than as class path resources
 * (the latter is {@link DefaultResourceLoader}'s default strategy).
 *
 * <p>NOTE: Plain paths will always be interpreted as relative
 * to the current VM working directory, even if they start with a slash.
 * (This is consistent with the semantics in a Servlet container.)
 * <b>Use an explicit "file:" prefix to enforce an absolute file path.
 *
 * <p>{@link org.springframework.context.support.FileSystemXmlApplicationContext}
 * is a full-fledged ApplicationContext implementation that provides
 * the same resource path resolution strategy.
 *
 * @author Juergen Hoeller
 * @since 1.1.3
 * @see DefaultResourceLoader
 * @see org.springframework.context.support.FileSystemXmlApplicationContext
 */
public class FileSystemResourceLoader extends DefaultResourceLoader {

	/**
	 * Resolve resource paths as file system paths.
	 * <p>Note: Even if a given path starts with a slash, it will get
	 * interpreted as relative to the current VM working directory.
	 * @param path the path to the resource
	 * @return the corresponding Resource handle
	 * @see FileSystemResource
	 * @see org.springframework.web.context.support.ServletContextResourceLoader#getResourceByPath
	 */
	protected Resource getResourceByPath(String path) {
		if (path != null && path.startsWith("/")) {
			path = path.substring(1);
		}
		return new FileSystemContextResource(path);
	}


	/**
	 * FileSystemResource that explicitly expresses a context-relative path
	 * through implementing the ContextResource interface.
	 */
	private static class FileSystemContextResource extends FileSystemResource implements ContextResource {

		public FileSystemContextResource(String path) {
			super(path);
		}

		public String getPathWithinContext() {
			return getPath();
		}
	}

}