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-rw-r--r--libjava/classpath/java/util/zip/DeflaterOutputStream.java198
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diff --git a/libjava/classpath/java/util/zip/DeflaterOutputStream.java b/libjava/classpath/java/util/zip/DeflaterOutputStream.java
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--- a/libjava/classpath/java/util/zip/DeflaterOutputStream.java
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-/* DeflaterOutputStream.java - Output filter for compressing.
- Copyright (C) 1999, 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.util.zip;
-
-import java.io.FilterOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-
-/* Written using on-line Java Platform 1.2 API Specification
- * and JCL book.
- * Believed complete and correct.
- */
-
-/**
- * This is a special FilterOutputStream deflating the bytes that are
- * written through it. It uses the Deflater for deflating.
- *
- * A special thing to be noted is that flush() doesn't flush
- * everything in Sun's JDK, but it does so in jazzlib. This is because
- * Sun's Deflater doesn't have a way to flush() everything, without
- * finishing the stream.
- *
- * @author Tom Tromey, Jochen Hoenicke
- * @date Jan 11, 2001
- */
-public class DeflaterOutputStream extends FilterOutputStream
-{
- /**
- * This buffer is used temporarily to retrieve the bytes from the
- * deflater and write them to the underlying output stream.
- */
- protected byte[] buf;
-
- /**
- * The deflater which is used to deflate the stream.
- */
- protected Deflater def;
-
- /**
- * Deflates everything in the def's input buffers. This will call
- * <code>def.deflate()</code> until all bytes from the input buffers
- * are processed.
- */
- protected void deflate() throws IOException
- {
- while (! def.needsInput())
- {
- int len = def.deflate(buf, 0, buf.length);
-
- // System.err.println("DOS deflated " + len + " out of " + buf.length);
- if (len <= 0)
- break;
- out.write(buf, 0, len);
- }
-
- if (! def.needsInput())
- throw new InternalError("Can't deflate all input?");
- }
-
- /**
- * Creates a new DeflaterOutputStream with a default Deflater and
- * default buffer size.
- * @param out the output stream where deflated output should be written.
- */
- public DeflaterOutputStream(OutputStream out)
- {
- this(out, new Deflater(), 4096);
- }
-
- /**
- * Creates a new DeflaterOutputStream with the given Deflater and
- * default buffer size.
- * @param out the output stream where deflated output should be written.
- * @param defl the underlying deflater.
- */
- public DeflaterOutputStream(OutputStream out, Deflater defl)
- {
- this(out, defl, 4096);
- }
-
- /**
- * Creates a new DeflaterOutputStream with the given Deflater and
- * buffer size.
- * @param out the output stream where deflated output should be written.
- * @param defl the underlying deflater.
- * @param bufsize the buffer size.
- * @exception IllegalArgumentException if bufsize isn't positive.
- */
- public DeflaterOutputStream(OutputStream out, Deflater defl, int bufsize)
- {
- super(out);
- if (bufsize <= 0)
- throw new IllegalArgumentException("bufsize <= 0");
- buf = new byte[bufsize];
- def = defl;
- }
-
- /**
- * Flushes the stream by calling flush() on the deflater and then
- * on the underlying stream. This ensures that all bytes are
- * flushed. This function doesn't work in Sun's JDK, but only in
- * jazzlib.
- */
- public void flush() throws IOException
- {
- def.flush();
- deflate();
- out.flush();
- }
-
- /**
- * Finishes the stream by calling finish() on the deflater. This
- * was the only way to ensure that all bytes are flushed in Sun's
- * JDK.
- */
- public void finish() throws IOException
- {
- def.finish();
- while (! def.finished())
- {
- int len = def.deflate(buf, 0, buf.length);
- if (len <= 0)
- break;
- out.write(buf, 0, len);
- }
- if (! def.finished())
- throw new InternalError("Can't deflate all input?");
- out.flush();
- }
-
- /**
- * Calls finish() and closes the stream.
- */
- public void close() throws IOException
- {
- finish();
- out.close();
- }
-
- /**
- * Writes a single byte to the compressed output stream.
- * @param bval the byte value.
- */
- public void write(int bval) throws IOException
- {
- byte[] b = new byte[1];
- b[0] = (byte) bval;
- write(b, 0, 1);
- }
-
- /**
- * Writes a len bytes from an array to the compressed stream.
- * @param buf the byte array.
- * @param off the offset into the byte array where to start.
- * @param len the number of bytes to write.
- */
- public void write(byte[] buf, int off, int len) throws IOException
- {
- def.setInput(buf, off, len);
- deflate();
- }
-}