public DeltaChain(DeltaManifest manifest)
{
if (manifest == null)
throw new ArgumentNullException("manifest");
this.manifest = manifest;
}
public Delta(DeltaManifest manifest, LinkedList<DeltaEntry> deltaEntries)
{
if (manifest == null)
throw new ArgumentNullException("manifest");
if (deltaEntries == null)
this.entries = new LinkedList<DeltaEntry>();
else
this.entries = deltaEntries;
this.manifest = manifest;
this.timestamp = DateTime.Now;
}
private void LoadOrCreateManifest()
{
ISiteAdapter adapter = profile.GetProvider().Adapter;
if (!adapter.FileExists(profile, profile.RemoteHost))
FlagDatabaseDirty();
string packagePath = DeltaManifest.GetManifestPath(profile);
if (!adapter.FileExists(profile, packagePath))
deltaManifest = new DeltaManifest(profile, GetDatabaseToken());
else
using (Stream manifestStream = adapter.PullFile(profile, packagePath))
deltaManifest = DeltaManifest.Deserialize(manifestStream, profile);
try
{
if (!deltaManifest.IsNew)
{
try
{
deltaManifest.Validate();
DeltaChain = new DeltaChain(deltaManifest);
}
// The manifest may belong to another db...
catch (DeltaSyncException)
{
// Store the old manifest
legacyManifest = deltaManifest;
// Create new manifest
deltaManifest = new DeltaManifest(profile, GetDatabaseToken());
// Inform the caller
throw;
}
}
}
finally
{
// MUST run always, even if DeltaManifest.IsNew == TRUE
CurrentDelta = new Delta(deltaManifest);
}
}
public Delta(DeltaManifest manifest) : this(manifest, null) { }
public static string GetPathForDelta(DeltaManifest manifest, int deltaIndex)
{
if (manifest == null)
throw new ArgumentNullException("manifest");
return String.Format("{0}.d{1}.{2}", manifest.AssociatedProfile.RemoteHost, deltaIndex.ToString("000"), DeltaSuffix);
}
public static Delta Deserialize(Stream source, DeltaManifest manifest)
{
if (source == null)
throw new ArgumentNullException("source");
if (manifest == null)
throw new ArgumentNullException("manifest");
if (!source.CanRead)
throw new ArgumentException();
using (MemoryStream decryptedStream = new MemoryStream(8192))
{
StreamUtility.DecryptAndDecompress(source, decryptedStream, manifest.AssociatedProfile.DatabasePassword);
decryptedStream.Seek(0, SeekOrigin.Begin);
BinaryFormatter formatter = new BinaryFormatter();
Delta delta = (Delta)formatter.Deserialize(decryptedStream);
delta.manifest = manifest;
return delta;
}
}
