internal ArchiveFileModel(ArchiveMetadata metadata, ArchivedFolder rootFolder, ImmutableArray <int> sections, ImmutableList <ArchivedFile> files)
{
if (metadata == null)
{
throw new ArgumentNullException(nameof(metadata));
}
if (rootFolder == null)
{
throw new ArgumentNullException(nameof(rootFolder));
}
if (files == null)
{
throw new ArgumentNullException(nameof(files));
}
if (sections.IsDefault)
{
throw new ArgumentNullException(nameof(sections));
}
if (sections.Length != metadata.DecoderSections.Length + 1)
{
throw new InternalFailureException();
}
this.Metadata = metadata;
this.RootFolder = rootFolder;
this.mSectionFiles = files;
this.mSections = sections;
}
private static void UnpackArchiveStructure(ManagedLzma.SevenZip.FileModel.ArchivedFolder folder, string targetDirectory)
{
if (folder.Items.IsEmpty)
{
// Empty folders need to be created manually since the unpacking code doesn't try to write into it.
Directory.CreateDirectory(targetDirectory);
}
else
{
foreach (var item in folder.Items)
{
var file = item as ManagedLzma.SevenZip.FileModel.ArchivedFile;
if (file != null)
{
// Files without content are not iterated during normal unpacking so we need to create them manually.
if (file.Stream.IsUndefined)
{
System.Diagnostics.Debug.Assert(file.Length == 0); // If the file has no content then its length should be zero, otherwise something is wrong.
var filename = Path.Combine(targetDirectory, file.Name);
using (var stream = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Delete))
{
// Nothing to do, FileMode.Create already truncates the file on opening.
}
SetFileAttributes(filename, file);
}
}
var subfolder = item as ManagedLzma.SevenZip.FileModel.ArchivedFolder;
if (subfolder != null)
{
UnpackArchiveStructure(subfolder, Path.Combine(targetDirectory, subfolder.Name));
}
}
}
}
public Builder(ArchivedFolder original)
: base(original)
{
this.mOriginal = original;
}