115 lines
2.7 KiB
Java
115 lines
2.7 KiB
Java
/* Inflater.java - Decompress a data stream
|
|
Copyright (C) 1999, 2000 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., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA.
|
|
|
|
As a special exception, if you link this library with other files to
|
|
produce an executable, this library does not by itself cause the
|
|
resulting executable to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why the
|
|
executable file might be covered by the GNU General Public License. */
|
|
|
|
package java.util.zip;
|
|
|
|
import gnu.gcj.RawData;
|
|
|
|
/**
|
|
* @author Tom Tromey
|
|
* @date May 17, 1999
|
|
*/
|
|
|
|
/* Written using on-line Java Platform 1.2 API Specification
|
|
* and JCL book.
|
|
* Believed complete and correct.
|
|
*/
|
|
|
|
public class Inflater
|
|
{
|
|
public native void end ();
|
|
|
|
protected void finalize ()
|
|
{
|
|
end ();
|
|
}
|
|
|
|
public synchronized boolean finished ()
|
|
{
|
|
return is_finished;
|
|
}
|
|
|
|
public native int getAdler ();
|
|
public native int getRemaining ();
|
|
public native int getTotalIn ();
|
|
public native int getTotalOut ();
|
|
|
|
public int inflate (byte[] buf) throws DataFormatException
|
|
{
|
|
return inflate (buf, 0, buf.length);
|
|
}
|
|
|
|
public native int inflate (byte[] buf, int off, int len)
|
|
throws DataFormatException;
|
|
|
|
private native void init (boolean noHeader);
|
|
|
|
public Inflater ()
|
|
{
|
|
this (false);
|
|
}
|
|
|
|
public Inflater (boolean noHeader)
|
|
{
|
|
init (noHeader);
|
|
}
|
|
|
|
public synchronized boolean needsDictionary ()
|
|
{
|
|
return dict_needed;
|
|
}
|
|
|
|
public synchronized boolean needsInput ()
|
|
{
|
|
return getRemaining () == 0;
|
|
}
|
|
|
|
public native void reset ();
|
|
|
|
public void setDictionary (byte[] buf)
|
|
{
|
|
setDictionary (buf, 0, buf.length);
|
|
}
|
|
|
|
public native void setDictionary (byte[] buf, int off, int len);
|
|
|
|
public void setInput (byte[] buf)
|
|
{
|
|
setInput (buf, 0, buf.length);
|
|
}
|
|
|
|
public native void setInput (byte[] buf, int off, int len);
|
|
|
|
// The zlib stream.
|
|
private RawData zstream;
|
|
|
|
// True if finished.
|
|
private boolean is_finished;
|
|
|
|
// True if dictionary needed.
|
|
private boolean dict_needed;
|
|
}
|