public static FileInfo Decompress(this FileInfo inputFile,
FileInfo outputFile,
int lockWaitMs = 60000,
ExistingFileHandling onExisting = ExistingFileHandling.PreserveExisting,
int bufferSize = 4096)
{
return(GZip(inputFile, outputFile, GZipType.Decompress, lockWaitMs, onExisting, bufferSize));
}
public void CanEnumerateDecompressFile_Test02_True(ExistingFileHandling handling)
{
/* Arrange */
var gotInput = m_Fixture.sutInputFileInfo02;
var got = m_Fixture.sutOutputFileInfo02;
/* Act */
output.WriteLine("File already exists:{0}", got.Exists);
got = gotInput.Decompress(got, onExisting: handling);
/* Assert */
output.WriteLine("File created:{0}", got?.FullName);
Assert.True(got.Exists, $"{TestConstants.CANNOT_FIND_FILE_MSG} {got.FullName}");
Assert.True(got.Length == m_Fixture.sutControlOutputFileInfo02.Length);
}
public static FileInfo GZip(this FileInfo inputFile,
FileInfo outputFile,
GZipType compressionMode,
int lockWaitMs = 60000,
ExistingFileHandling onExisting = ExistingFileHandling.PreserveExisting,
int bufferSize = 4096)
{
VerifyFileParams(inputFile, outputFile);
FileInfo m_OutputFileInfo = EnsureOutputDirectory(inputFile, outputFile);
if (inputFile.FullName.Equals(m_OutputFileInfo.FullName, StringComparison.InvariantCultureIgnoreCase))
{
throw new IOException($"{nameof(inputFile)} ({inputFile.FullName}) and {nameof(outputFile)} ({m_OutputFileInfo.FullName}) cannot be the same!");
}
if (m_OutputFileInfo.Exists)
{
switch (onExisting)
{
case ExistingFileHandling.PreserveExisting:
return(m_OutputFileInfo);
case ExistingFileHandling.Overwrite:
m_OutputFileInfo.Delete();
break;
case ExistingFileHandling.ReplaceAndArchive:
var m_arcFile = GetArchiveFullName(m_OutputFileInfo);
if (!File.Exists(m_arcFile))
{
File.Move(m_OutputFileInfo.FullName, m_arcFile);
}
else
{
m_OutputFileInfo.Delete(); /* may no longer be numerically possible needs validation */
}
break;
default:
throw new IOException(IoConstants.FILE_EXISTS_ERROR_MSG);
}
}
if (compressionMode == GZipType.Compress)
{
return(ExecuteCompress(inputFile, m_OutputFileInfo, bufferSize, lockWaitMs));
}
return(ExecuteDecompress(inputFile, outputFile, bufferSize, lockWaitMs));
}
public void CanEnumerateGzipFile_Test01_True(ExistingFileHandling handling)
{
/* Arrange */
var sutFilePath = Path.Combine(Environment.CurrentDirectory, TestConstants.INPUT_FILE_01_PATH);
var sutOutputFilePath = Path.Combine(Environment.CurrentDirectory, TestConstants.OUTPUT_FILE_01_PATH);
var gotInput = new FileInfo(sutFilePath);
var got = new FileInfo(sutOutputFilePath);
/* Act */
output.WriteLine("File already exists:{0}", got.Exists);
got = gotInput.Compress(got, 60000, handling);
/* Assert */
output.WriteLine("File created:{0}", got?.FullName);
Assert.True(got.Exists, $"{TestConstants.CANNOT_FIND_FILE_MSG} {got.FullName}");
}
private static void HandleCompressCommand(FileInfo input,
FileInfo output,
int lockms = 60000,
ExistingFileHandling filehandling = ExistingFileHandling.PreserveExisting,
int buffersize = 4096)
{
try
{
input.Compress(output, lockms, filehandling, buffersize);
Console.WriteLine($"Compression Complete! {output.FullName}");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
