--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/io/DefaultByteBuffer.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,242 @@
+/* ====================================================================
+ * Trove - Copyright (c) 1999-2000 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.io;
+
+import java.io.OutputStream;
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.List;
+import java.util.ArrayList;
+
+/******************************************************************************
+ * A ByteBuffer implementation that keeps byte data in memory.
+ *
+ * @author Brian S O'Neill
+ * @version
+ * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/05/30 <!-- $-->
+ */
+public class DefaultByteBuffer implements ByteBuffer, Serializable {
+    private static final int BUFFER_SIZE = 512;
+
+    // A List of ByteData instances.
+    private List mChunks;
+
+    private byte[] mBuffer;
+    private int mCursor;
+
+    private int mBaseCount;
+
+    private List mCaptureBuffers;
+
+    public DefaultByteBuffer() {
+        mChunks = new ArrayList(100);
+    }
+
+    public long getBaseByteCount() {
+        if (mBuffer != null) {
+            return mBaseCount + mCursor;
+        }
+        else {
+            return mBaseCount;
+        }
+    }
+
+    public long getByteCount() throws IOException {
+        long count;
+        if (mBuffer != null) {
+            count = mCursor;
+        }
+        else {
+            count = 0;
+        }
+
+        int size = mChunks.size();
+        for (int i=0; i<size; i++) {
+            count += ((ByteData)mChunks.get(i)).getByteCount();
+        }
+
+        return count;
+    }
+
+    public void writeTo(OutputStream out) throws IOException {
+        int size = mChunks.size();
+        for (int i=0; i<size; i++) {
+            ((ByteData)mChunks.get(i)).writeTo(out);
+        }
+
+        if (mBuffer != null && mCursor != 0) {
+            out.write(mBuffer, 0, mCursor);
+        }
+    }
+
+    public void append(byte b) throws IOException {
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) != null) {
+            int size = captureBuffers.size();
+            for (int i=0; i<size; i++) {
+                ((ByteBuffer)captureBuffers.get(i)).append(b);
+            }
+        }
+
+        if (mBuffer == null) {
+            mBuffer = new byte[BUFFER_SIZE];
+            mCursor = 0;
+        }
+        else if (mCursor >= mBuffer.length) {
+            mChunks.add(new ArrayByteData(mBuffer));
+            mBaseCount += BUFFER_SIZE;
+            mBuffer = new byte[BUFFER_SIZE];
+            mCursor = 0;
+        }
+
+        mBuffer[mCursor++] = b;
+    }
+
+    public void append(byte[] bytes) throws IOException {
+        append(bytes, 0, bytes.length);
+    }
+
+    public void append(byte[] bytes, int offset, int length)
+        throws IOException
+    {
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) != null) {
+            int size = captureBuffers.size();
+            for (int i=0; i<size; i++) {
+                ((ByteBuffer)captureBuffers.get(i)).append
+                    (bytes, offset, length);
+            }
+        }
+
+        while (length > 0) {
+            if (mBuffer == null) {
+                if (length >= BUFFER_SIZE) {
+                    byte[] copy = new byte[length];
+                    System.arraycopy(bytes, offset, copy, 0, length);
+                    mChunks.add(new ArrayByteData(copy));
+                    mBaseCount += length;
+                    return;
+                }
+                
+                mBuffer = new byte[BUFFER_SIZE];
+                mCursor = 0;
+            }
+            
+            int available = BUFFER_SIZE - mCursor;
+            
+            if (length <= available) {
+                System.arraycopy(bytes, offset, mBuffer, mCursor, length);
+                mCursor += length;
+                return;
+            }
+            
+            System.arraycopy(bytes, offset, mBuffer, mCursor, available);
+            mChunks.add(new ArrayByteData(mBuffer));
+            mBaseCount += BUFFER_SIZE;
+            mBuffer = null;
+            offset += available;
+            length -= available;
+        }
+    }
+
+    public void appendSurrogate(ByteData s) throws IOException {
+        if (s == null) {
+            return;
+        }
+
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) != null) {
+            int size = captureBuffers.size();
+            for (int i=0; i<size; i++) {
+                ((ByteBuffer)captureBuffers.get(i)).appendSurrogate(s);
+            }
+        }
+
+        if (mBuffer != null && mCursor > 0) {
+            mChunks.add(new ArrayByteData(mBuffer, 0, mCursor));
+            mBaseCount += mCursor;
+            mBuffer = null;
+        }
+        mChunks.add(s);
+    }
+
+    public void addCaptureBuffer(ByteBuffer buffer) {
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) == null) {
+            captureBuffers = mCaptureBuffers = new ArrayList();
+        }
+        captureBuffers.add(buffer);
+    }
+
+    public void removeCaptureBuffer(ByteBuffer buffer) {
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) != null) {
+            captureBuffers.remove(buffer);
+        }
+    }
+
+    public void reset() throws IOException {
+        int size = mChunks.size();
+        for (int i=0; i<size; i++) {
+            ((ByteData)mChunks.get(i)).reset();
+        }
+
+        List captureBuffers;
+        if ((captureBuffers = mCaptureBuffers) != null) {
+            size = captureBuffers.size();
+            for (int i=0; i<size; i++) {
+                ((ByteData)captureBuffers.get(i)).reset();
+            }
+        }
+    }
+}