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114 lines
3.8 KiB
Java
114 lines
3.8 KiB
Java
/* JarOutputStream.java - OutputStream for writing jar files
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Copyright (C) 2000 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., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 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 java.util.jar;
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import java.io.OutputStream;
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import java.io.IOException;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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/**
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* OutputStream for writing jar files.
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* A special ZipOutputStream that can take JarEntries and can have a optional
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* Manifest as first entry.
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*
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* @author Mark Wielaard (mark@klomp.org)
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*/
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public class JarOutputStream extends ZipOutputStream
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{
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// Constructors
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/**
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* Creates a new JarOutputStream without a manifest entry.
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*
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* @param out the stream to create the new jar on
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* @exception IOException if something unexpected happend
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*/
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public JarOutputStream(OutputStream out) throws IOException
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{
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this(out, null);
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}
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/**
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* Creates a new JarOutputStream with a manifest entry.
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* The manifest will be the first entry in the jar.
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*
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* @param out the stream to create the new jar on
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* @param man the manifest that should be put in the jar file or null
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* for no manifest entry
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* @exception IOException if something unexpected happend
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*/
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public JarOutputStream(OutputStream out, Manifest man) throws IOException
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{
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super(out);
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if (man != null)
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writeManifest(man);
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}
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// Methods
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/**
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* Writes the manifest to a new JarEntry in this JarOutputStream with as
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* name JarFile.MANIFEST_NAME.
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*
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* @param manifest the non null manifest to be written
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* @exception IOException if something unexpected happend
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*/
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private void writeManifest(Manifest manifest) throws IOException
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{
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// Create a new Jar Entry for the Manifest
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JarEntry entry = new JarEntry(JarFile.MANIFEST_NAME);
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putNextEntry(entry);
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manifest.write(this);
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closeEntry();
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}
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/**
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* Prepares the JarOutputStream for writing the next entry.
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* This implementation just calls <code>super.putNextEntre()</code>.
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*
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* @param entry The information for the next entry
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* @exception IOException when some unexpected I/O exception occurred
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*/
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public void putNextEntry(ZipEntry entry) throws IOException
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{
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super.putNextEntry(entry); // XXX
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}
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}
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