public static Stream GetAppropriateStream(PeekStream peekStream)
{
var header = peekStream.PeekBytes(NumHeaderBytes);
var compressionAlgorithm = IdentifyCompressionAlgorithm(header);
return(GetAppropriateStream(peekStream, compressionAlgorithm));
}
public PeekStreamTests()
{
var memoryStream = new MemoryStream();
using (var writer = new StreamWriter(memoryStream, Encoding.UTF8, 1024, true)) writer.WriteLine("testing");
memoryStream.Position = 0;
_peekStream = new PeekStream(memoryStream);
}
/// <summary>
/// <para>Creates and returns a new peek stream linked to this stream. Reading from the returned stream allows
/// peeking at the bytes ahead of the current position in this stream, without changing the outcome of future
/// calls to any methods on this stream.</para>
/// <para>The returned stream must be disposed of when done, since outstanding undisposed peek streams have a slight
/// performance impact on most operations on this peekable stream.</para>
/// <para>See Remarks on <see cref="PeekableStream"/> for more info.</para>
/// </summary>
public PeekStream GetPeekStream()
{
var peek = new PeekStream(this);
peek._buffer = _buffers.First;
peek._offset = _offset;
_peeks.Add(peek);
return(peek);
}
private LiteVcfReader GetVcfReader()
{
var useStdInput = ConfigurationSettings.VcfPath == "-";
var peekStream =
new PeekStream(useStdInput
? Console.OpenStandardInput()
: FileUtilities.GetReadStream(ConfigurationSettings.VcfPath));
return(new LiteVcfReader(GZipUtilities.GetAppropriateStream(peekStream)));
}
public static IVcfReader GetVcfReader(string vcfPath, IDictionary <string, IChromosome> chromosomeDictionary,
IRefMinorProvider refMinorProvider, bool verboseTranscript, IRecomposer recomposer)
{
var useStdInput = vcfPath == "-";
var peekStream =
new PeekStream(useStdInput
? Console.OpenStandardInput()
: GZipUtilities.GetAppropriateReadStream(vcfPath));
return(new VcfReader(peekStream, chromosomeDictionary, refMinorProvider, verboseTranscript, recomposer));
}
public void Should_ThrowException_Constructor_InvalidBufferSize()
{
var memoryStream = new MemoryStream(new byte[50]);
Assert.Throws <ArgumentOutOfRangeException>(delegate
{
// ReSharper disable once UnusedVariable
var peekStream = new PeekStream(memoryStream, 0);
});
Assert.Throws <ArgumentOutOfRangeException>(delegate
{
// ReSharper disable once UnusedVariable
var peekStream = new PeekStream(memoryStream, -1);
});
}
public void GetAppropriateStream_Handle_PeekStream()
{
string observedString;
using (var ms = new MemoryStream())
{
using (var writer = new BinaryWriter(new BlockGZipStream(ms, CompressionMode.Compress, true)))
{
writer.Write(ExpectedString);
}
ms.Position = 0;
using (var peekStream = new PeekStream(ms))
using (var reader = new BinaryReader(GZipUtilities.GetAppropriateStream(peekStream)))
{
observedString = reader.ReadString();
}
}
Assert.Equal(ExpectedString, observedString);
}
public void GetAppropriateStream_PeekStream_WithTextFile()
{
string observedString;
using (var ms = new MemoryStream())
{
using (var writer = new StreamWriter(ms, Encoding.UTF8, 1024, true))
{
writer.WriteLine(ExpectedString);
}
ms.Position = 0;
using (var peekStream = new PeekStream(ms))
using (var reader = new StreamReader(GZipUtilities.GetAppropriateStream(peekStream)))
{
observedString = reader.ReadLine();
}
}
Assert.Equal(ExpectedString, observedString);
}
/// <summary>
/// Initializes a new instance of the <see cref="FilteredStream{T}"/> class.
/// </summary>
/// <param name="underlying">The underlying stream this one reads from.</param>
/// <param name="predicate">The predicate used for filtering.</param>
public FilteredStream(IStream <T> underlying, Predicate <T> predicate)
{
this.underlying = new PeekStream <T>(underlying);
this.Predicate = predicate;
this.UpdatePeek();
}
public HessianReader(Stream input, bool closeInput)
{
this.input = new PeekStream(input);
this.ownsStream = closeInput;
}
/// <summary>
/// <para>Creates and returns a new peek stream linked to this stream. Reading from the returned stream allows
/// peeking at the bytes ahead of the current position in this stream, without changing the outcome of future
/// calls to any methods on this stream.</para>
/// <para>The returned stream must be disposed of when done, since outstanding undisposed peek streams have a slight
/// performance impact on most operations on this peekable stream.</para>
/// <para>See Remarks on <see cref="PeekableStream"/> for more info.</para>
/// </summary>
public PeekStream GetPeekStream()
{
var peek = new PeekStream(this);
peek._buffer = _buffers.First;
peek._offset = _offset;
_peeks.Add(peek);
return peek;
}
