| /* |
| * Copyright (c) 1998, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| // Flaivio Stutz - bug fix for getEntryAsURL |
| package org.eclipse.persistence.internal.jpa.deployment; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| import org.eclipse.persistence.jpa.Archive; |
| |
| /** |
| * This is an implementation of {@link Archive} when container returns a url |
| * that is not one of the familiar URL types like file or jar URLs. So, we can |
| * not recursively walk thru' its hierarchy. As a result {@link #getEntries()} |
| * returns an empty collection. |
| * |
| * @author Sanjeeb.Sahoo@Sun.COM |
| */ |
| public class URLArchive extends ArchiveBase implements Archive { |
| /* |
| * Implementation Note: This class does not have any dependency on either |
| * EclipseLink or GlassFish implementation classes. Please retain this separation. |
| */ |
| |
| public URLArchive(URL url, String descriptorLocation) { |
| super(url, descriptorLocation); |
| } |
| |
| |
| @Override |
| public Iterator<String> getEntries() { |
| return Collections.EMPTY_LIST.iterator(); |
| } |
| |
| @Override |
| public InputStream getEntry(String entryPath) throws IOException { |
| URL subEntry = new URL(rootURL, entryPath); |
| InputStream is = null; |
| try { |
| is = subEntry.openStream(); |
| } catch (IOException ioe) { |
| // we return null when entry does not exist |
| } |
| return is; |
| } |
| |
| @Override |
| public URL getEntryAsURL(String entryPath) throws IOException { |
| URL subEntry = new URL(rootURL, entryPath); |
| try { |
| InputStream is = subEntry.openStream(); |
| if (is == null){ |
| return null; |
| } |
| is.close(); |
| } catch (IOException ioe) { |
| return null; // return null when entry does not exist |
| } |
| return subEntry; |
| } |
| |
| @Override |
| public void close() { |
| // nothing to close. it's caller's responsibility to close |
| // any InputStream returned by getEntry(). |
| } |
| } |