public DataContext(Frontend frontend, byte[] id, DatabasePath path)
: base(frontend)
{
Log.WriteLine ("DataContext-{0}..ctor(frontend={1}, id={2}, path={3})", id.ToHexadecimal (), frontend.ToString (), id.ToHexadecimal (), path);
this.id = id;
this.path = path;
KeyValueStorageConfiguration kvscPrecomputedQueries = new KeyValueStorageConfiguration ("PrecomputedQueries", "Sqlite");
KeyValueStorageConfiguration kvscMeta = new KeyValueStorageConfiguration ("Meta", "Sqlite");
KeyValueStorageConfiguration kvscTemporary = new KeyValueStorageConfiguration ("Temporary", "Sqlite");
precomputedQueries = kvscPrecomputedQueries.OpenStorage<byte[]> (path);
meta = kvscMeta.OpenStorage<byte[]> (path);
temporary = kvscTemporary.OpenStorage<byte[]> (path);
try {
byte[] cid = meta.Get ("ID".SHA256 ());
if (cid == null) {
meta.Put ("ID".SHA256 (), id);
meta.Put ("Solid".SHA256 (), new byte[] { 0 });
} else {
if (ByteSequenceComparer.Shared.Compare (cid, id) != 0)
throw new InvalidDataException ("Wrong ID");//should i even do this?
}
} catch {
meta.Put ("ID".SHA256 (), id);
meta.Put ("Solid".SHA256 (), new byte[] { 0 });
}
foreach (var t in frontend.GetTables ())
perTableRows.Add (t, new SortedDictionary<byte[], Row> (ByteSequenceComparer.Shared));
foreach (var kvp in temporary) {
byte[] objectID = kvp.Key;
//BaseDataObject bdo = new BaseDataObject (this.Frontend, objectID);
System.IO.MemoryStream ms = new MemoryStream (kvp.Value, 16, kvp.Value.Length - 16);
byte[] GuidBytes = new byte[16];
System.Buffer.BlockCopy (kvp.Value, 0, GuidBytes, 0, 16);
BaseDataObjectVersion bdov = BaseDataObjectTypeIdAttribute.GetAttribFor (new Guid (GuidBytes)).Deserialize (this.Frontend, null, ms.ToArray ());
var row = bdov as Row;
if (!references.ContainsKey (bdov.ID)) {
if (row != null) {
perTableRows [row.Table].Add (bdov.ID, row);
}
objects.Add (bdov.ID, row);
}
foreach (var r in bdov.ReplacingIDs) {
if (!references.ContainsKey (r)) {
references.Add (r, new SortedSet<byte[]> (ByteSequenceComparer.Shared));
}
references [r].Add (bdov.ID);
}
}
//this.frontendInstanceBase = (FrontendInstance)frontendInstanceBase;
}
