jaroslav@874: /**
jaroslav@874:  * Back 2 Browser Bytecode Translator
jaroslav@874:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@874:  *
jaroslav@874:  * This program is free software: you can redistribute it and/or modify
jaroslav@874:  * it under the terms of the GNU General Public License as published by
jaroslav@874:  * the Free Software Foundation, version 2 of the License.
jaroslav@874:  *
jaroslav@874:  * This program is distributed in the hope that it will be useful,
jaroslav@874:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@874:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@874:  * GNU General Public License for more details.
jaroslav@874:  *
jaroslav@874:  * You should have received a copy of the GNU General Public License
jaroslav@874:  * along with this program. Look for COPYING file in the top folder.
jaroslav@874:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@874:  */
jaroslav@874: package org.apidesign.vm4brwsr;
jaroslav@874: 
jaroslav@874: import java.io.IOException;
jaroslav@874: import java.io.InputStream;
jaroslav@874: import java.net.URL;
jaroslav@874: import java.util.Enumeration;
jaroslav@874: 
jaroslav@874: /** Implementation of Resources that delegates to some class loader.
jaroslav@874:  *
jaroslav@874:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@874:  */
jaroslav@874: final class LdrRsrcs implements Bck2Brwsr.Resources {
jaroslav@874:     private final ClassLoader loader;
jaroslav@1359:     private final boolean skipRtJar;
jaroslav@874: 
jaroslav@1359:     LdrRsrcs(ClassLoader loader, boolean skipRtJar) {
jaroslav@874:         this.loader = loader;
jaroslav@1359:         this.skipRtJar = skipRtJar;
jaroslav@874:     }
jaroslav@874: 
jaroslav@874:     @Override
jaroslav@874:     public InputStream get(String name) throws IOException {
jaroslav@874:         Enumeration<URL> en = loader.getResources(name);
jaroslav@874:         URL u = null;
jaroslav@874:         while (en.hasMoreElements()) {
jaroslav@874:             u = en.nextElement();
jaroslav@874:         }
jaroslav@874:         if (u == null) {
jaroslav@874:             throw new IOException("Can't find " + name);
jaroslav@874:         }
jaroslav@1411:         if (skipRtJar && u.toExternalForm().contains("lib/rt.jar!")) {
jaroslav@1359:             return null;
jaroslav@1359:         }
jaroslav@874:         return u.openStream();
jaroslav@874:     }
jaroslav@874: }