internal static NetFxToWinRtStreamAdapter Create(Stream stream)
{
if (stream == null)
throw new ArgumentNullException(nameof(stream));
StreamReadOperationOptimization readOptimization = StreamReadOperationOptimization.AbstractStream;
if (stream.CanRead)
readOptimization = DetermineStreamReadOptimization(stream);
NetFxToWinRtStreamAdapter adapter;
if (stream.CanSeek)
adapter = new RandomAccessStream(stream, readOptimization);
else if (stream.CanRead && stream.CanWrite)
adapter = new InputOutputStream(stream, readOptimization);
else if (stream.CanRead)
adapter = new InputStream(stream, readOptimization);
else if (stream.CanWrite)
adapter = new OutputStream(stream, readOptimization);
else
throw new ArgumentException(global::Windows.Storage.Streams.SR.Argument_NotSufficientCapabilitiesToConvertToWinRtStream);
return adapter;
}
private NetFxToWinRtStreamAdapter(Stream stream, StreamReadOperationOptimization readOptimization)
{
Debug.Assert(stream != null);
Debug.Assert(stream.CanRead || stream.CanWrite || stream.CanSeek);
Debug.Assert(!stream.CanRead || (stream.CanRead && this is IInputStream));
Debug.Assert(!stream.CanWrite || (stream.CanWrite && this is IOutputStream));
Debug.Assert(!stream.CanSeek || (stream.CanSeek && this is IRandomAccessStream));
_readOptimization = readOptimization;
_managedStream = stream;
}
internal static NetFxToWinRtStreamAdapter Create(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
StreamReadOperationOptimization readOptimization = StreamReadOperationOptimization.AbstractStream;
if (stream.CanRead)
{
readOptimization = DetermineStreamReadOptimization(stream);
}
NetFxToWinRtStreamAdapter adapter;
if (stream.CanSeek)
{
adapter = new RandomAccessStream(stream, readOptimization);
}
else if (stream.CanRead && stream.CanWrite)
{
adapter = new InputOutputStream(stream, readOptimization);
}
else if (stream.CanRead)
{
adapter = new InputStream(stream, readOptimization);
}
else if (stream.CanWrite)
{
adapter = new OutputStream(stream, readOptimization);
}
else
{
throw new ArgumentException(SR.Argument_NotSufficientCapabilitiesToConvertToWinRtStream);
}
return(adapter);
}
internal InputOutputStream(Stream stream, StreamReadOperationOptimization readOptimization)
: base(stream, readOptimization)
{
}
internal RandomAccessStream(Stream stream, StreamReadOperationOptimization readOptimization)
: base(stream, readOptimization)
{
}
internal InputOutputStream(Stream stream, StreamReadOperationOptimization readOptimization)
: base(stream, readOptimization)
{
}
internal RandomAccessStream(Stream stream, StreamReadOperationOptimization readOptimization)
: base(stream, readOptimization)
{
}
private NetFxToWinRtStreamAdapter(Stream stream, StreamReadOperationOptimization readOptimization)
{
Contract.Requires(stream != null);
Contract.Requires(stream.CanRead || stream.CanWrite || stream.CanSeek);
Contract.EndContractBlock();
Debug.Assert(!stream.CanRead || (stream.CanRead && this is IInputStream));
Debug.Assert(!stream.CanWrite || (stream.CanWrite && this is IOutputStream));
Debug.Assert(!stream.CanSeek || (stream.CanSeek && this is IRandomAccessStream));
_readOptimization = readOptimization;
_managedStream = stream;
}
