/// <summary>
/// Constructs a new zip instance.
/// If the file exists and has a non-zero length we read it,
/// otherwise we create a new archive.
/// </summary>
/// <param name="filename">The name of the file to read or write</param>
/// <param name="options">The options passed on the commandline</param>
public SevenZipCompression(string filename, Dictionary <string, string> options)
{
m_threadCount = DEFAULT_THREAD_COUNT;
string threadCountSetting;
int threadCountValue;
if (options != null &&
options.TryGetValue(THREAD_COUNT_OPTION, out threadCountSetting) &&
Int32.TryParse(threadCountSetting, out threadCountValue) &&
threadCountValue > 0)
{
// arbitrary limit to avoid stupid mistakes
if (threadCountValue > MAX_THREAD_COUNT)
{
threadCountValue = MAX_THREAD_COUNT;
}
m_threadCount = threadCountValue;
}
string cplvl;
int tmplvl;
if (options.TryGetValue(COMPRESSION_LEVEL_OPTION, out cplvl) && int.TryParse(cplvl, out tmplvl))
{
tmplvl = Math.Max(Math.Min(9, tmplvl), 0);
}
else
{
tmplvl = DEFAULT_COMPRESSION_LEVEL;
}
m_encoderProps = new ManagedLzma.LZMA.Master.LZMA.CLzma2EncProps();
m_encoderProps.Lzma2EncProps_Init();
m_encoderProps.mLzmaProps.mLevel = tmplvl;
m_encoderProps.mLzmaProps.mAlgo = Library.Utility.Utility.ParseBoolOption(options, COMPRESSION_FASTALGO_OPTION) ? 0 : 1;
var file = new FileInfo(filename);
if (file.Exists && file.Length > 0)
{
InitializeArchiveReader(filename);
}
else
{
InitializeArchiveWriter(filename);
}
}
/// <summary>
/// Constructs a new zip instance.
/// If the file exists and has a non-zero length we read it,
/// otherwise we create a new archive.
/// </summary>
/// <param name="filename">The name of the file to read or write</param>
/// <param name="options">The options passed on the commandline</param>
public SevenZipCompression(string filename, Dictionary<string, string> options)
{
m_threadCount = DEFAULT_THREAD_COUNT;
string threadCountSetting;
int threadCountValue;
if(options != null
&& options.TryGetValue(THREAD_COUNT_OPTION, out threadCountSetting)
&& Int32.TryParse(threadCountSetting, out threadCountValue)
&& threadCountValue > 0)
{
// arbitrary limit to avoid stupid mistakes
if(threadCountValue > MAX_THREAD_COUNT)
threadCountValue = MAX_THREAD_COUNT;
m_threadCount = threadCountValue;
}
string cplvl;
int tmplvl;
if (options.TryGetValue(COMPRESSION_LEVEL_OPTION, out cplvl) && int.TryParse(cplvl, out tmplvl))
tmplvl = Math.Max(Math.Min(9, tmplvl), 0);
else
tmplvl = DEFAULT_COMPRESSION_LEVEL;
m_encoderProps = new ManagedLzma.LZMA.Master.LZMA.CLzma2EncProps();
m_encoderProps.Lzma2EncProps_Init();
m_encoderProps.mLzmaProps.mLevel = tmplvl;
m_encoderProps.mLzmaProps.mAlgo = Library.Utility.Utility.ParseBoolOption(options, COMPRESSION_FASTALGO_OPTION) ? 0 : 1;
var file = new FileInfo(filename);
if(file.Exists && file.Length > 0)
InitializeArchiveReader(filename);
else
InitializeArchiveWriter(filename);
}
