1 files changed, 86 insertions, 0 deletions
diff --git a/qpid/dotnet/Qpid.Buffer/SlicedByteBuffer.cs b/qpid/dotnet/Qpid.Buffer/SlicedByteBuffer.cs
new file mode 100644
index 0000000000..890e2a3c7a
--- /dev/null
+++ b/qpid/dotnet/Qpid.Buffer/SlicedByteBuffer.cs
@@ -0,0 +1,86 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+using System;
+
+namespace Apache.Qpid.Buffer
+{
+   internal sealed class SlicedByteBuffer : ByteBuffer
+   {
+      private ByteBuffer _buffer;
+      private int _capacity;
+      private int _startPos;
+
+      public override int Capacity
+      {
+         get { return _capacity; }
+      }
+
+      public override byte[] Array
+      {
+         get { return _buffer.Array; }
+      }
+
+      /// <summary>
+      /// Initialize a new instance
+      /// </summary>
+      /// <param name="buffer">Underlying byte buffer</param>
+      internal SlicedByteBuffer(ByteBuffer buffer)
+      {
+         _buffer = buffer;
+         _startPos = buffer.Position;
+         Position = 0;
+         _capacity = buffer.Remaining;
+         Limit = Capacity;
+         // cannot autoexpand
+         IsAutoExpand = false;
+      }
+
+      protected override void DoWrite(int position, byte value)
+      {
+         _buffer.Put(_startPos + position, value);
+      }
+
+      protected override void DoWrite(int position, byte[] src, int offset, int length)
+      {
+         _buffer.Put(_startPos + position, src, offset, length);
+      }
+
+      protected override byte DoReadByte(int position)
+      {
+         return _buffer.GetByte(_startPos + position);
+      }
+
+      protected override void DoReadBytes(int position, byte[] dest, int offset, int length)
+      {
+         _buffer.GetBytes(_startPos + position, dest, offset, length);
+      }
+
+      protected override void DoCompact()
+      {
+         throw new NotSupportedException();
+      }
+
+      protected override void DoResize(int newSize)
+      {
+         throw new NotSupportedException();
+      }
+   } // class SlicedByteBuffer
+}