kitaev@213: /*
kitaev@213:  * Copyright (c) 2011 TMate Software Ltd
kitaev@213:  *  
kitaev@213:  * This program is free software; you can redistribute it and/or modify
kitaev@213:  * it under the terms of the GNU General Public License as published by
kitaev@213:  * the Free Software Foundation; version 2 of the License.
kitaev@213:  *
kitaev@213:  * This program is distributed in the hope that it will be useful,
kitaev@213:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
kitaev@213:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
kitaev@213:  * GNU General Public License for more details.
kitaev@213:  *
kitaev@213:  * For information on how to redistribute this software under
kitaev@213:  * the terms of a license other than GNU General Public License
kitaev@213:  * contact TMate Software at support@hg4j.com
kitaev@213:  */
kitaev@213: package org.tmatesoft.hg.internal;
kitaev@213: 
kitaev@213: import java.io.File;
kitaev@213: 
kitaev@213: import org.tmatesoft.hg.util.PathRewrite;
kitaev@213: 
kitaev@213: /**
kitaev@213:  *
kitaev@213:  * @author Artem Tikhomirov
kitaev@213:  * @author TMate Software Ltd.
kitaev@213:  */
kitaev@213: public class RelativePathRewrite implements PathRewrite {
kitaev@213: 	
kitaev@213: 	private final String rootPath;
kitaev@213: 
kitaev@213: 	public RelativePathRewrite(File root) {
kitaev@213: 		this(root.getPath());
kitaev@213: 	}
kitaev@213: 	
kitaev@213: 	public RelativePathRewrite(String rootPath) {
kitaev@213: 		this.rootPath = rootPath;
kitaev@213: 	}
kitaev@213: 
kitaev@213: 	public String rewrite(String path) {
kitaev@213: 		if (path != null && path.startsWith(rootPath)) {
kitaev@213: 			if (path.length() == rootPath.length()) {
kitaev@213: 				return "";
kitaev@213: 			}
kitaev@213: 			return path.substring(rootPath.length() + 1);
kitaev@213: 		}
kitaev@213: 		return path;
kitaev@213: 	}
kitaev@213: }