Mercurial > hg > digilib-old
view servlet/src/digilib/io/AliasingDocuDirCache.java @ 176:67ff8c7fecb9
Servlet version 1.17b2
- new mapping file for "virtual directories"
- direct file URLs now work without extension (even with wrong ones)
author | robcast |
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date | Mon, 10 Nov 2003 20:59:00 +0100 |
parents | |
children | afe7ff98bb71 |
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/* * AliasingDocuDirCache -- DocuDirCache using alias entries from config file * * Digital Image Library servlet components * * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * * Please read license.txt for the full details. A copy of the GPL may be found * at http://www.gnu.org/copyleft/lgpl.html * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place, Suite 330, Boston, MA 02111-1307 USA * * Created on 04.11.2003 */ package digilib.io; import java.io.File; import java.util.HashMap; import java.util.Iterator; /** * @author casties * */ public class AliasingDocuDirCache extends DocuDirCache { /** * @param baseDirs * @param fileClasses * @param confFileName * @throws FileOpException */ public AliasingDocuDirCache( String[] baseDirs, int[] fileClasses, String confFileName) throws FileOpException { // create standard DocuDirCache super(baseDirs, fileClasses); HashMap pathMap = null; // read alias config file try { // create data loader for mapping-file File confFile = new File(confFileName); // load into pathMap XMLListLoader mapLoader = new XMLListLoader("digilib-aliases", "mapping", "link", "dir"); pathMap = mapLoader.loadURL(confFile.toURL().toString()); } catch (Exception e) { throw new FileOpException("ERROR loading mapping file: " + e); } if (pathMap == null) { throw new FileOpException("ERROR unable to load mapping file!"); } /* * load map entries into cache */ for (Iterator i = pathMap.keySet().iterator(); i.hasNext();) { String link = (String)i.next(); String dir = (String) pathMap.get(link); DocuDirectory destDir = new DocuDirectory(dir, this); if (destDir.isValid()) { // add the alias name putName(link, destDir); // add the real dir putDir(destDir); } } } /** Adds a DocuDirectory under another name to the cache. * * @param name * @param newdir */ public void putName(String name, DocuDirectory newdir) { if (map.containsKey(name)) { System.out.println("Baah, duplicate key in AliasingDocuDirCache.put!"); } else { map.put(name, newdir); } } }