/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 2012-2015 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * http://glassfish.java.net/public/CDDL+GPL_1_1.html * or packager/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package org.glassfish.jersey.server.internal.scanning; import java.io.IOException; import java.io.InputStream; import java.net.URI; import java.util.Collections; import java.util.NoSuchElementException; import java.util.Set; import org.glassfish.jersey.server.internal.AbstractResourceFinderAdapter; /** * Preparations for OSGi support. * * @author Jakub Podlesak (jakub.podlesak at oracle.com) */ final class BundleSchemeResourceFinderFactory implements UriSchemeResourceFinderFactory { private static final Set<String> SCHEMES = Collections.singleton("bundle"); @Override public Set<String> getSchemes() { return SCHEMES; } /** * Create new bundle scheme resource finder factory. */ BundleSchemeResourceFinderFactory() { } @Override public BundleSchemeScanner create(final URI uri, final boolean recursive) { return new BundleSchemeScanner(uri); } private class BundleSchemeScanner extends AbstractResourceFinderAdapter { private BundleSchemeScanner(final URI uri) { this.uri = uri; } private final URI uri; /** * Marks this iterator as iterated after execution of {@link #open()} method. * Together with {@link #iterated}, this field determines a returned value of {@link #hasNext()}. */ private boolean accessed = false; /** * Marks this iterator as iterated after execution of {@link #next()} method. * Together with {@link #accessed}, this field determines a returned value of {@link #hasNext()}. */ private boolean iterated = false; @Override public boolean hasNext() { return !accessed && !iterated; } @Override public String next() { if (hasNext()) { iterated = true; return uri.getPath(); } throw new NoSuchElementException(); } @Override public InputStream open() { if (!accessed) { try { accessed = true; return uri.toURL().openStream(); } catch (final IOException e) { throw new ResourceFinderException(e); } } return null; } @Override public void reset() { throw new UnsupportedOperationException(); } } }