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using System;
using System.IO;
namespace SharpCompress.Common
{
internal class EntryStream : Stream
{
private Stream stream;
private bool completed;
private bool isDisposed;
internal EntryStream(Stream stream)
{
this.stream = stream;
}
/// <summary>
/// When reading a stream from OpenEntryStream, the stream must be completed so use this to finish reading the entire entry.
/// </summary>
public void SkipEntry()
{
var buffer = new byte[4096];
while (Read(buffer, 0, buffer.Length) > 0)
{
}
completed = true;
}
protected override void Dispose(bool disposing)
{
if (!completed)
{
throw new InvalidOperationException(
"EntryStream has not been fully consumed. Read the entire stream or use SkipEntry.");
}
if (isDisposed)
{
return;
}
isDisposed = true;
base.Dispose(disposing);
stream.Dispose();
}
public override bool CanRead
{
get { return true; }
}
public override bool CanSeek
{
get { return false; }
}
public override bool CanWrite
{
get { return false; }
}
public override void Flush()
{
throw new System.NotImplementedException();
}
public override long Length
{
get { throw new System.NotImplementedException(); }
}
public override long Position
{
get { throw new System.NotImplementedException(); }
set { throw new System.NotImplementedException(); }
}
public override int Read(byte[] buffer, int offset, int count)
{
int read = stream.Read(buffer, offset, count);
if (read <= 0)
{
completed = true;
}
return read;
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new System.NotImplementedException();
}
public override void SetLength(long value)
{
throw new System.NotImplementedException();
}
public override void Write(byte[] buffer, int offset, int count)
{
throw new System.NotImplementedException();
}
}
}
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