| /* |
| * |
| * 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 |
| } |