001/*
002 * Copyright (C) 2012 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020package org.crsh.vfs.spi.ram;
021
022import org.crsh.vfs.Path;
023
024import java.io.IOException;
025import java.net.URL;
026import java.net.URLConnection;
027import java.net.URLStreamHandler;
028
029public class RAMURLStreamHandler extends URLStreamHandler {
030
031  /** . */
032  private final RAMDriver driver;
033
034  public RAMURLStreamHandler(RAMDriver driver) {
035    this.driver = driver;
036  }
037
038  @Override
039  protected URLConnection openConnection(URL u) throws IOException {
040    Path path = Path.get(u.getFile());
041    if (path.isDir()) {
042      throw new IOException("Cannot open dir");
043    }
044    String file = driver.entries.get(path);
045    if (file == null) {
046      throw new IOException("Cannot open non existing dir " + path);
047    }
048    return new RAMURLConnection(u, file);
049  }
050}