public PortableData Create()
{
// 1. Decrypt stream
ExportDataEncryptor decryptor =
new ExportDataEncryptor(dataStream);
using (MemoryStream decrypted = new MemoryStream())
{
decryptor.Decrypt(decrypted);
decrypted.Position = 0;
// 2. Decompress stream
ExportDataCompressor decompressor =
new ExportDataCompressor(decrypted);
using (MemoryStream decompressed = new MemoryStream())
{
decompressor.Decompress(decompressed);
decompressed.Position = 0;
// 3. Deserialize stream
PsaTracesSerializer deserializer =
new PsaTracesSerializer();
PortableData result = deserializer.Deserialize(decompressed);
return(result);
}
}
}
public void XmlCompressionDecompressionTest()
{
FileStream stream = new FileStream("./compression/XmlFile.xml", FileMode.Open);
ExportDataCompressor compressor = new ExportDataCompressor(stream);
MemoryStream mems = new MemoryStream();
compressor.Compress(mems);
mems.Position = 0;
try
{
XDocument doc = XDocument.Load(mems);
doc.ToString();
Assert.IsFalse(true);
}
catch (Exception)
{
mems.Position = 0;
}
MemoryStream mems2 = new MemoryStream();
mems.CopyTo(mems2);
mems2.Flush();
mems2.Position = 0;
ExportDataCompressor compressor2 = new ExportDataCompressor(mems2);
MemoryStream decompressed = new MemoryStream();
compressor2.Decompress(decompressed);
decompressed.Position = 0;
XDocument doc2 = XDocument.Load(decompressed);
XElement root = doc2.Root;
Assert.IsTrue(root.HasElements);
XElement xtag1 = root.Element("XmlTag1");
Assert.IsTrue(xtag1.Value == "XML Value 1");
}
public static PortableData Import(string vtsFilePathname)
{
if (String.IsNullOrEmpty(vtsFilePathname))
{
throw new ArgumentNullException("vtsFilePathname");
}
if (!File.Exists(vtsFilePathname))
{
throw new ArgumentException(".VTS File does not exist.");
}
PortableData result;
using (FileStream file = new FileStream(vtsFilePathname,
FileMode.Open,
FileAccess.Read,
FileShare.ReadWrite))
{
file.Position = 0;
ExportDataEncryptor decryptor = new ExportDataEncryptor(file);
using (MemoryStream decryptedFile = new MemoryStream())
{
decryptor.Decrypt(decryptedFile);
//decryptedFile.Position = 0;
ExportDataCompressor decompressor =
new ExportDataCompressor(decryptedFile);
using (MemoryStream decompressed = new MemoryStream())
{
decompressor.Decompress(decompressed);
decompressed.Position = 0;
PsaTracesSerializer deserializer = new PsaTracesSerializer();
result = deserializer.Deserialize(decompressed);
}
}
}
return(result);
}