﻿// -----------------------------------------------------------------------------------------
// <copyright file="NonSeekableMemoryStream.cs" company="Microsoft">
//    Copyright 2013 Microsoft Corporation
// 
//    Licensed 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.
// </copyright>
// -----------------------------------------------------------------------------------------

using System;
using System.IO;

namespace Microsoft.Azure.Storage.Blob
{
    public class NonSeekableMemoryStream : MemoryStream
    {
        public NonSeekableMemoryStream()
            : base()
        {
        }

        public NonSeekableMemoryStream(byte[] buffer)
            : base(buffer)
        {
        }

        public override bool CanSeek
        {
            get
            {
                return false;
            }
        }

        public override long Length
        {
            get
            {
                throw new NotSupportedException();
            }
        }

        public override long Position
        {
            get
            {
                throw new NotSupportedException();
            }
            set
            {
                throw new NotSupportedException();
            }
        }

        public override long Seek(long offset, SeekOrigin origin)
        {
            throw new NotSupportedException();
        }

        public override void SetLength(long value)
        {
            throw new NotSupportedException();
        }

        public void ForceSeek(long offset, SeekOrigin origin)
        {
            base.Seek(offset, origin);
        }
    }
}