mirror of git://gcc.gnu.org/git/gcc.git
95 lines
3.0 KiB
Java
95 lines
3.0 KiB
Java
/* JarURLResource.java -- a Resource for jar URLs
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.net.loader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.security.cert.Certificate;
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import java.util.jar.JarEntry;
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public final class JarURLResource extends Resource
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{
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private final JarEntry entry;
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private final String name;
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public JarURLResource(JarURLLoader loader, String name, JarEntry entry)
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{
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super(loader);
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this.entry = entry;
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this.name = name;
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}
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public InputStream getInputStream() throws IOException
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{
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return ((JarURLLoader) loader).jarfile.getInputStream(entry);
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}
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public int getLength()
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{
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return (int) entry.getSize();
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}
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public Certificate[] getCertificates()
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{
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// We have to get the entry from the jar file again, because the
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// certificates will not be available until the entire entry has
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// been read.
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return ((JarEntry) ((JarURLLoader) loader).jarfile.getEntry(name))
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.getCertificates();
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}
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public URL getURL()
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{
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try
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{
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return new URL(((JarURLLoader) loader).baseJarURL, name,
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loader.cache.get(loader.factory, "jar"));
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}
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catch (MalformedURLException e)
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{
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InternalError ie = new InternalError();
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ie.initCause(e);
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throw ie;
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}
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}
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}
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