tikhomirov@64: /*
tikhomirov@64:  * Copyright (c) 2011 TMate Software Ltd
tikhomirov@64:  *  
tikhomirov@64:  * This program is free software; you can redistribute it and/or modify
tikhomirov@64:  * it under the terms of the GNU General Public License as published by
tikhomirov@64:  * the Free Software Foundation; version 2 of the License.
tikhomirov@64:  *
tikhomirov@64:  * This program is distributed in the hope that it will be useful,
tikhomirov@64:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
tikhomirov@64:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tikhomirov@64:  * GNU General Public License for more details.
tikhomirov@64:  *
tikhomirov@64:  * For information on how to redistribute this software under
tikhomirov@64:  * the terms of a license other than GNU General Public License
tikhomirov@102:  * contact TMate Software at support@hg4j.com
tikhomirov@64:  */
tikhomirov@64: package org.tmatesoft.hg.util;
tikhomirov@64: 
tikhomirov@74: import java.util.LinkedList;
tikhomirov@74: import java.util.List;
tikhomirov@74: 
tikhomirov@64: /**
tikhomirov@64:  *
tikhomirov@64:  * @author Artem Tikhomirov
tikhomirov@64:  * @author TMate Software Ltd.
tikhomirov@64:  */
tikhomirov@64: public interface PathRewrite {
tikhomirov@64: 
tikhomirov@64: 	public String rewrite(String path);
tikhomirov@93: 	
tikhomirov@93: 	public static class Empty implements PathRewrite {
tikhomirov@93: 		public String rewrite(String path) {
tikhomirov@93: 			return path;
tikhomirov@93: 		}
tikhomirov@93: 	}
tikhomirov@74: 
tikhomirov@74: 	public class Composite implements PathRewrite {
tikhomirov@74: 		private List<PathRewrite> chain;
tikhomirov@74: 
tikhomirov@74: 		public Composite(PathRewrite... e) {
tikhomirov@74: 			LinkedList<PathRewrite> r = new LinkedList<PathRewrite>();
tikhomirov@74: 			for (int i = (e == null ? -1 : e.length); i >=0; i--) {
tikhomirov@74: 				r.addFirst(e[i]);
tikhomirov@74: 			}
tikhomirov@74: 			chain = r;
tikhomirov@74: 		}
tikhomirov@74: 		public Composite chain(PathRewrite e) {
tikhomirov@74: 			chain.add(e);
tikhomirov@74: 			return this;
tikhomirov@74: 		}
tikhomirov@74: 
tikhomirov@74: 		public String rewrite(String path) {
tikhomirov@74: 			for (PathRewrite pr : chain) {
tikhomirov@74: 				path = pr.rewrite(path);
tikhomirov@74: 			}
tikhomirov@74: 			return path;
tikhomirov@74: 		}
tikhomirov@74: 	}
tikhomirov@64: }