private static object ZipArchiveCompressionMethodToNativeDeflateOptionEnum(ZipArchiveCompressionMethod compressionMethod)
{
var deflateOptionEnum = ZipArchiveCompressionMethodToDeflateOptionEnum(compressionMethod);
var nativeDeflateOptionEnum = ZipDeflateOptionEnumType.Value.GetField(deflateOptionEnum.ToString()).GetValue(null);
return(nativeDeflateOptionEnum);
}
/// <summary>
/// Creates a new ZIP entry in the archive.
/// </summary>
/// <param name="fileName">The name of the entry in the archive.</param>
/// <param name="compressionMethod">The compression method to use.</param>
/// <returns>The new archive entry.</returns>
/// <exception cref="System.ArgumentNullException">Thrown if <paramref name="fileName"/> is <c>null</c></exception>
/// <exception cref="System.ArgumentOutOfRangeException">Thrown if <paramref name="fileName"/> is too long, or <paramref name="compressionMethod"/> indicates improper compression or deflate mode.</exception>
/// <exception cref="System.InvalidOperationException">Thrown if archive was opened in read mode, or <paramref name="fileName"/> already exists in the archive.</exception>
private ICompressedArchiveEntry CreateZipEntry(string fileName, ZipArchiveCompressionMethod compressionMethod)
{
var compression = ZipArchiveCompressionMethodToNativeCompressionMethodEnum(compressionMethod);
var deflate = ZipArchiveCompressionMethodToNativeDeflateOptionEnum(compressionMethod);
var zipFileInfoObject = AddFileMethod.Value.Invoke(_zipArchiveObject, new object[] { fileName, compression, deflate });
var zipFileInfo = new ZipFileInfo(zipFileInfoObject);
return(zipFileInfo);
}
private ICompressedArchiveEntry CreateZipEntry(string fileName, ZipArchiveCompressionMethod compressionMethod)
{
ZipEntry entry = null;
var zipArchiveEntry = ZipArchive.CreateEntry(fileName, (CompressionLevel)compressionMethod);
if (zipArchiveEntry != null)
{
entry = new ZipEntry(zipArchiveEntry);
}
return(entry);
}
private static CompressionMethodEnum ZipArchiveCompressionMethodToCompressionMethodEnum(ZipArchiveCompressionMethod compressionMethod)
{
var compressionMethodEnum = CompressionMethodEnum.Deflated;
switch (compressionMethod)
{
case ZipArchiveCompressionMethod.NoCompression:
compressionMethodEnum = CompressionMethodEnum.Stored;
break;
default:
break;
}
return(compressionMethodEnum);
}
private static DeflateOptionEnum ZipArchiveCompressionMethodToDeflateOptionEnum(ZipArchiveCompressionMethod compressionMethod)
{
var deflateOptionEnum = DeflateOptionEnum.Normal;
switch (compressionMethod)
{
case ZipArchiveCompressionMethod.MaximumCompression:
deflateOptionEnum = DeflateOptionEnum.Maximum;
break;
case ZipArchiveCompressionMethod.FastestCompression:
deflateOptionEnum = DeflateOptionEnum.SuperFast;
break;
case ZipArchiveCompressionMethod.NoCompression:
deflateOptionEnum = DeflateOptionEnum.None;
break;
default:
break;
}
return(deflateOptionEnum);
}
