--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/util/Deflater.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,258 @@
+/* ====================================================================
+ * Trove - Copyright (c) 1997-2001 Walt Disney Internet Group
+ * ====================================================================
+ * The Tea Software License, Version 1.1
+ *
+ * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Walt Disney Internet Group (http://opensource.go.com/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
+ *    not be used to endorse or promote products derived from this
+ *    software without prior written permission. For written
+ *    permission, please contact opensource@dig.com.
+ *
+ * 5. Products derived from this software may not be called "Tea",
+ *    "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
+ *    "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
+ *    written permission of the Walt Disney Internet Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * For more information about Tea, please see http://opensource.go.com/.
+ */
+
+package com.go.trove.util;
+
+/******************************************************************************
+ * A zlib deflater interface that matches {@link java.util.zip.Deflater},
+ * except additional flush operations are supported. This class requires native
+ * code support and looks for a library named "TroveZip".
+ *
+ * @author Brian S O'Neill
+ * @version
+ * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/06/13 <!-- $-->
+ */
+public class Deflater {
+    public static final int
+        DEFLATED = 8,
+        NO_COMPRESSION = 0,
+        BEST_SPEED = 1,
+        BEST_COMPRESSION = 9,
+        DEFAULT_COMPRESSION = -1,
+        FILTERED = 1,
+        HUFFMAN_ONLY = 2,
+        DEFAULT_STRATEGY = 0;
+
+    private static final int
+        NO_FLUSH = 0,
+        SYNC_FLUSH = 2,
+        FULL_FLUSH = 3,
+        FINISH = 4;
+
+    static {
+        System.loadLibrary("TroveZip");
+        initIDs();
+    }
+
+    // Pointer to strm used by native deflate functions.
+    private long mStream;
+    private boolean mNoWrap;
+
+    private int mStrategy;
+    private int mLevel;
+    private boolean mSetParams;
+
+    private int mFlushOption = NO_FLUSH;
+    private boolean mFinished;
+
+    private byte[] mInputBuf;
+    private int mInputOffset;
+    private int mInputLength;
+
+    public Deflater(int level, boolean nowrap) {
+        mStream = init(DEFAULT_STRATEGY, level, nowrap);
+        mStrategy = DEFAULT_STRATEGY;
+        mLevel = level;
+        mNoWrap = nowrap;
+    }
+
+    public Deflater(int level) {
+        this(level, false);
+    }
+
+    public Deflater() {
+        this(DEFAULT_COMPRESSION, false);
+    }
+
+    public boolean isNoWrap() {
+        return mNoWrap;
+    }
+
+    public synchronized void setInput(byte[] b, int off, int len) {
+        boundsCheck(b, off, len);
+        mInputLength = len;
+        mInputOffset = off;
+        mInputBuf = b;
+    }
+    
+    public synchronized void setInput(byte[] b) {
+        mInputLength = b.length;
+        mInputOffset = 0;
+        mInputBuf = b;
+    }
+    
+    public synchronized void setDictionary(byte[] b, int off, int len) {
+        boundsCheck(b, off, len);
+        setDictionary(mStream, b, off, len);
+    }
+    
+    public synchronized void setDictionary(byte[] b) {
+        setDictionary(mStream, b, 0, b.length);
+    }
+
+    public synchronized void setStrategy(int strategy) {
+        mStrategy = strategy;
+        mSetParams = true;
+    }
+    
+    public synchronized void setLevel(int level) {
+        mLevel = level;
+        mSetParams = true;
+    }
+
+    public boolean needsInput() {
+        return mInputLength <= 0;
+    }
+
+    /**
+     * When called, indicates that the current input buffer contents should be
+     * flushed out when deflate is next called.
+     */
+    public void flush() {
+        mFlushOption = SYNC_FLUSH;
+    }
+
+    /**
+     * When called, indicates that the current input buffer contents should be
+     * flushed out when deflate is next called, but all compression information
+     * up to this point is cleared.
+     */
+    public void fullFlush() {
+        mFlushOption = FULL_FLUSH;
+    }
+
+    /**
+     * When called, indicates that compression should end with the current
+     * contents of the input buffer. Deflate must be called to get the final
+     * compressed bytes.
+     */
+    public void finish() {
+        mFlushOption = FINISH;
+    }
+
+    public synchronized boolean finished() {
+        return mFinished;
+    }
+
+    public int deflate(byte[] b, int off, int len) {
+        boundsCheck(b, off, len);
+        return deflate0(b, off, len);
+    }
+
+    public int deflate(byte[] b) {
+        return deflate0(b, 0, b.length);
+    }
+
+    private synchronized int deflate0(byte[] b, int off, int len) {
+        int amt = deflate(mStream, mFlushOption, mSetParams,
+                          mInputBuf, mInputOffset, mInputLength,
+                          b, off, len);
+        if (amt < len) {
+            if (mFlushOption == SYNC_FLUSH || mFlushOption == FULL_FLUSH) {
+                mFlushOption = NO_FLUSH;
+            }
+        }
+        return amt;
+    }
+
+    public synchronized int getAdler() {
+        return getAdler(mStream);
+    }
+
+    public synchronized int getTotalIn() {
+        return getTotalIn(mStream);
+    }
+
+    public synchronized int getTotalOut() {
+        return getTotalOut(mStream);
+    }
+
+    private int mResetCount;
+
+    public synchronized void reset() {
+        mFinished = false;
+        mFlushOption = NO_FLUSH;
+        mInputBuf = null;
+        mInputLength = 0;
+        reset(mStream);
+    }
+
+    public synchronized void end() {
+        end(mStream);
+    }
+
+    protected void finalize() {
+        end();
+    }
+
+    private void boundsCheck(byte[] b, int off, int len) {
+        if (off < 0 || len < 0 || off + len > b.length) {
+            throw new ArrayIndexOutOfBoundsException();
+        }
+    }
+
+    private static native void initIDs();
+
+    private native long init(int strategy, int level, boolean nowrap);
+
+    private native void setDictionary(long strm, byte[] b, int off, int len);
+
+    private native int deflate(long strm, int flushOpt, boolean setParams,
+                               byte[] inBuf, int inOff, int inLen,
+                               byte[] outBuf, int outOff, int outLen);
+
+    private native int getAdler(long strm);
+    private native int getTotalIn(long strm);
+    private native int getTotalOut(long strm);
+    private native void reset(long strm);
+    private native void end(long strm);
+}