/// <summary>
/// Initializes a new instance of the <see cref="PackageFile"/> class.
/// The instance is initialized as uncompressed and depends on the file existing prior to creation of the PackageFile
/// </summary>
/// <param name="ownerPackage">The owner package.</param>
public PackageFile(IPackage ownerPackage, string path)
{
if (ownerPackage == null)
{
throw new ArgumentNullException("PackageFiles must be created with an owning Package");
}
if (string.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException("Path must be non-null and not whitespace.");
}
string absolutePath = System.IO.Path.Combine(ownerPackage.Location, path);
if (System.IO.File.Exists(absolutePath) == false)
{
throw new System.IO.FileNotFoundException("File must exist");
}
Owner = ownerPackage;
ID = Guid.NewGuid().ToString("D");
Path = path;
using (var stream = new System.IO.FileStream(absolutePath, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read))
{
UncompressedSize = stream.Length;
UncompressedHash = Package.ComputeHash(stream);
}
}
/// <summary>
/// Packs the file and prepares it for transport
/// </summary>
public void PackFile()
{
string inFilePath = System.IO.Path.Combine(Owner.Location, Path);
using (var inFile = System.IO.File.OpenRead(inFilePath))
{
using (var outFile = new System.IO.MemoryStream())
{
CompressStream(inFile, outFile);
outFile.Seek(0, System.IO.SeekOrigin.Begin);
CompressedSize = outFile.Length;
CompressedHash = Package.ComputeHash(outFile);
Data = System.Convert.ToBase64String(outFile.GetBuffer(), 0, (int)outFile.Length);
IsCompressed = true;
}
}
}
