public static void Decode(Stream original, Stream delta, Stream output, long adler)
{
if (original != null && (!original.CanRead || !original.CanSeek))
{
throw new ArgumentException("Must be able to read and seek in original stream", "original");
}
if (delta == null)
{
throw new ArgumentNullException("delta");
}
if (!delta.CanRead)
{
throw new ArgumentException("Unable to read from delta stream");
}
if (output == null)
{
throw new ArgumentNullException("output");
}
if (!output.CanWrite || !output.CanRead || !output.CanSeek)
{
throw new ArgumentException("Must be able to read, write and seek in output stream", "output");
}
VcdiffDecoder vcdiffDecoder = new VcdiffDecoder(original, delta, output);
vcdiffDecoder.Decode();
if (adler != 0 && adler != vcdiffDecoder.adler.Value)
{
throw new Exception();
}
}
/// <summary>
/// Decodes an original stream and a delta stream, writing to a target stream.
/// The original stream may be null, so long as the delta stream never
/// refers to it. The original and delta streams must be readable, and the
/// original stream (if any) and the target stream must be seekable.
/// The target stream must be writable and readable. The original and target
/// streams are rewound to their starts before any data is read; the relevant data
/// must occur at the beginning of the original stream, and any data already present
/// in the target stream may be overwritten. The delta data must begin
/// wherever the delta stream is currently positioned. The delta stream must end
/// after the last window. The streams are not disposed by this method.
/// </summary>
/// <param name="original">Stream containing delta. May be null.</param>
/// <param name="delta">Stream containing delta data.</param>
/// <param name="output">Stream to write resulting data to.</param>
/// <param name="adler">The adler32 value of the output stream</param>
public static void Decode(Stream original, Stream delta, Stream output, long adler)
{
#region Simple argument checking
if (original != null && (!original.CanRead || !original.CanSeek))
{
throw new ArgumentException("Must be able to read and seek in original stream", "original");
}
if (delta == null)
{
throw new ArgumentNullException("delta");
}
if (!delta.CanRead)
{
throw new ArgumentException("Unable to read from delta stream");
}
if (output == null)
{
throw new ArgumentNullException("output");
}
if (!output.CanWrite || !output.CanRead || !output.CanSeek)
{
throw new ArgumentException("Must be able to read, write and seek in output stream", "output");
}
#endregion
// Now the arguments are checked, we construct an instance of the
// class and ask it to do the decoding.
VcdiffDecoder instance = new VcdiffDecoder(original, delta, output);
instance.Decode();
if (adler != 0 && adler != instance.adler.Value)
{
throw new Exception();
}
}
/// <summary>
/// Decodes an original stream and a delta stream, writing to a target stream.
/// The original stream may be null, so long as the delta stream never
/// refers to it. The original and delta streams must be readable, and the
/// original stream (if any) and the target stream must be seekable.
/// The target stream must be writable and readable. The original and target
/// streams are rewound to their starts before any data is read; the relevant data
/// must occur at the beginning of the original stream, and any data already present
/// in the target stream may be overwritten. The delta data must begin
/// wherever the delta stream is currently positioned. The delta stream must end
/// after the last window. The streams are not disposed by this method.
/// </summary>
/// <param name="original">Stream containing delta. May be null.</param>
/// <param name="delta">Stream containing delta data.</param>
/// <param name="output">Stream to write resulting data to.</param>
/// <param name="adler">The adler32 value of the output stream</param>
public static void Decode(Stream original, Stream delta, Stream output, long adler)
{
#region Simple argument checking
if (original != null && (!original.CanRead || !original.CanSeek))
{
throw new ArgumentException ("Must be able to read and seek in original stream", "original");
}
if (delta==null)
{
throw new ArgumentNullException("delta");
}
if (!delta.CanRead)
{
throw new ArgumentException ("Unable to read from delta stream");
}
if (output==null)
{
throw new ArgumentNullException("output");
}
if (!output.CanWrite || !output.CanRead || !output.CanSeek)
{
throw new ArgumentException ("Must be able to read, write and seek in output stream", "output");
}
#endregion
// Now the arguments are checked, we construct an instance of the
// class and ask it to do the decoding.
VcdiffDecoder instance = new VcdiffDecoder(original, delta, output);
instance.Decode();
if (adler != 0 && adler != instance.adler.Value)
throw new Exception();
}
