MatFileHandler/MatFileHandler.Tests/PartialUnseekableReadStream.cs

85 lines
2.1 KiB
C#

// Copyright 2017-2018 Alexander Luzgarev
using System;
using System.IO;
namespace MatFileHandler.Tests
{
/// <summary>
/// A stream which wraps another stream and only reads one byte at a time.
/// </summary>
internal class PartialUnseekableReadStream : Stream
{
private readonly Stream _baseStream;
/// <summary>
/// Initializes a new instance of the <see cref="PartialUnseekableReadStream"/> class.
/// </summary>
/// <param name="baseStream">The stream to wrap.</param>
public PartialUnseekableReadStream(Stream baseStream)
{
_baseStream = baseStream;
}
/// <inheritdoc/>
public override bool CanRead => _baseStream.CanRead;
/// <inheritdoc/>
public override bool CanSeek => false;
/// <inheritdoc/>
public override bool CanWrite => false;
/// <inheritdoc/>
public override long Length => _baseStream.Length;
/// <inheritdoc/>
public override long Position
{
get => throw new NotSupportedException();
set => throw new NotSupportedException();
}
/// <inheritdoc/>
public override void Flush()
{
_baseStream.Flush();
}
/// <inheritdoc/>
public override int Read(byte[] buffer, int offset, int count)
{
return _baseStream.Read(buffer, offset, Math.Min(1, count));
}
/// <inheritdoc/>
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
/// <inheritdoc/>
public override void SetLength(long value)
{
throw new NotSupportedException();
}
/// <inheritdoc/>
public override void Write(byte[] buffer, int offset, int count)
{
throw new NotImplementedException();
}
/// <inheritdoc/>
protected override void Dispose(bool disposing)
{
if (disposing)
{
_baseStream.Dispose();
}
base.Dispose(disposing);
}
}
}