/// <summary>
/// Perform one trial, measuring the effectiveness and speed
/// of compression.
/// </summary>
///
/// <param name='label'>the label for the trial</param>
///
/// <param name='compressor'>a function that accepts a string,
/// and returns a byte array representing the compressed
/// form</param>
///
/// <param name='decompressor'>a function that accepts a byte
/// array, and decompresses it, returning a string. </param>
///
/// <param name='s'>the string to compress and decompress</param>
///
/// <param name='nCycles'>the number of cycles to time</param>
///
/// <returns>the CompressionTrialResult describing the trial results</returns>
///
/// <remarks>
/// </remarks>
public CompressionTrialResult DoTrial(string label,
Func <string, byte[]> compressor,
Func <byte[], string> decompressor,
string s,
int nCycles)
{
byte[] compressed = compressor(s);
// verify that the compression decompresses correctly
string uncompressed = decompressor(compressed);
if (s.Length != uncompressed.Length)
{
throw new Exception("decompression failed.");
}
// compress the same thing 1000 times, and measure the time
var stopwatch = new Stopwatch();
stopwatch.Start();
for (int i = 0; i < nCycles; i++)
{
compressed = compressor(s);
}
stopwatch.Stop();
var result = new CompressionTrialResult
{
Label = label,
CompressedData = compressed,
Cycles = nCycles,
TimeForManyCycles = stopwatch.Elapsed
};
return(result);
}
/// <summary>
/// Perform one trial, measuring the effectiveness and speed
/// of compression.
/// </summary>
///
/// <param name='label'>the label for the trial</param>
///
/// <param name='compressor'>a function that accepts a string,
/// and returns a byte array representing the compressed
/// form</param>
///
/// <param name='decompressor'>a function that accepts a byte
/// array, and decompresses it, returning a string. </param>
///
/// <param name='s'>the string to compress and decompress</param>
///
/// <param name='nCycles'>the number of cycles to time</param>
///
/// <returns>the CompressionTrialResult describing the trial results</returns>
///
/// <remarks>
/// </remarks>
public CompressionTrialResult DoTrial(string label,
Func<string, byte[]> compressor,
Func<byte[],string> decompressor,
string s,
int nCycles)
{
byte[] compressed = compressor(s);
// verify that the compression decompresses correctly
string uncompressed = decompressor(compressed);
if (s.Length != uncompressed.Length)
throw new Exception("decompression failed.");
// compress the same thing 1000 times, and measure the time
var stopwatch = new Stopwatch();
stopwatch.Start();
for (int i=0; i < nCycles; i++)
compressed = compressor(s);
stopwatch.Stop();
var result = new CompressionTrialResult
{
Label = label,
CompressedData = compressed,
Cycles = nCycles,
TimeForManyCycles = stopwatch.Elapsed
};
return result;
}
