/// <summary>
/// Opens the archive and throws exceptions or returns OperationResult.DataError if any error occurs.
/// </summary>
/// <param name="archiveStream">The IInStream compliant class instance, that is, the input stream.</param>
/// <param name="openCallback">The ArchiveOpenCallback instance.</param>
/// <returns>True if Open() succeeds; otherwise, false.</returns>
private bool OpenArchive(IInStream archiveStream,
ArchiveOpenCallback openCallback)
{
if (!_opened)
{
if (OpenArchiveInner(archiveStream, openCallback) != OperationResult.Ok)
{
if (!ThrowException(null, new SevenZipArchiveException()))
{
return false;
}
}
_volumeFileNames = new ReadOnlyCollection<string>(openCallback.VolumeFileNames);
_opened = true;
}
return true;
}
private void CommonDispose()
{
if (_opened)
{
try
{
if (_archive != null)
{
_archive.Close();
}
}
catch (Exception) { }
}
_archive = null;
_archiveFileData = null;
_archiveProperties = null;
_archiveFileInfoCollection = null;
_inStream = null;
if (_openCallback != null)
{
try
{
_openCallback.Dispose();
}
catch (ObjectDisposedException) { }
_openCallback = null;
}
if (_archiveStream != null)
{
if (_archiveStream is IDisposable)
{
try
{
if (_archiveStream is DisposeVariableWrapper)
{
(_archiveStream as DisposeVariableWrapper).DisposeStream = true;
}
(_archiveStream as IDisposable).Dispose();
}
catch (ObjectDisposedException) { }
_archiveStream = null;
}
}
SevenZipLibraryManager.FreeLibrary(this, _format);
}
private ArchiveOpenCallback GetArchiveOpenCallback()
{
return _openCallback ?? (_openCallback = String.IsNullOrEmpty(Password)
? new ArchiveOpenCallback(_fileName)
: new ArchiveOpenCallback(_fileName, Password));
}
