public static Stream SearchWrappedStream(Stream stream, OssFunc <Stream, bool> condition)
{
WrapperStream wrapperStream = stream as WrapperStream;
if (wrapperStream == null)
{
return(condition(stream) ? stream : null);
}
return(wrapperStream.SearchWrappedStream(condition));
}
public Stream SearchWrappedStream(OssFunc <Stream, bool> condition)
{
Stream baseStream = this;
do
{
if (condition(baseStream))
{
return(baseStream);
}
if (!(baseStream is WrapperStream))
{
return(null);
}
baseStream = (baseStream as WrapperStream).BaseStream;
} while (baseStream != null);
return(baseStream);
}
