001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020package org.sonar.core.plugins;
021
022import com.google.common.collect.Lists;
023import org.apache.commons.lang.StringUtils;
024
025import java.net.URL;
026import java.net.URLClassLoader;
027import java.util.Collection;
028
029/**
030 * This class loader is used to load resources from a list of URLs - see SONAR-1861.
031 */
032public class ResourcesClassloader extends URLClassLoader {
033  private Collection<URL> urls;
034
035  public ResourcesClassloader(Collection<URL> urls, ClassLoader parent) {
036    super(new URL[] {}, parent);
037    this.urls = Lists.newArrayList(urls);
038  }
039
040  @Override
041  public URL findResource(String name) {
042    for (URL url : urls) {
043      if (StringUtils.endsWith(url.getPath(), name)) {
044        return url;
045      }
046    }
047    return null;
048  }
049}