public IExtractor ExtractFile(UInt64 index, Stream outputStream)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
if (outputStream == null || !outputStream.CanWrite)
{
throw new ArgumentException($"Stream `{nameof(outputStream)}` is invalid or cannot be written to.");
}
SevenZipArchiveFile file = _Files[index];
if (file.IsEmpty)
{
Trace.TraceWarning($"Filename: {file.Name} is a directory, empty file or anti file, nothing to output to stream.");
}
else
{
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
sx.Extract((UInt64)file.UnPackIndex, outputStream);
}
return(this);
}
public IExtractor ExtractFile(UInt64 index, string outputDirectory)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
SevenZipArchiveFile file = _Files[index];
if (!preProcessFile(outputDirectory, file))
{
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
// progress provider
SevenZipProgressProvider szpp = null;
if (ProgressDelegate != null)
{
szpp = new SevenZipProgressProvider(_Files, new[] { index }, ProgressDelegate);
}
// extraction
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo, Password);
using (Stream fileStream = File.Create(fullPath))
sx.Extract((UInt64)file.UnPackIndex, fileStream, szpp);
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
}
return(this);
}
public IExtractor ExtractFile(UInt64 index, string outputDirectory)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
SevenZipArchiveFile file = _Files[index];
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
if (!processFile(outputDirectory, file))
{
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
if (File.Exists(fullPath) && !OverwriteExistingFiles && !SkipExistingFiles)
{
throw new IOException($"File `{file.Name}` already exists.");
}
if (!File.Exists(fullPath) || OverwriteExistingFiles)
{
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
using (Stream fileStream = File.Create(fullPath))
sx.Extract((UInt64)file.UnPackIndex, fileStream);
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
}
else
{
Trace.TraceWarning($"File `{file.Name} already exists, skipping.");
}
}
return(this);
}