public TextDeferredIndexer(DBreezeEngine engine)
{
this.DBreezeEngine = engine;
LTrieSettings = new TrieSettings()
{
InternalTable = true
};
Storage = new StorageLayer(Path.Combine(engine.MainFolder, TableFileName), LTrieSettings, engine.Configuration);
LTrie = new LTrie(Storage);
LTrie.TableName = "DBreeze.TextIndexer";
if (LTrie.Storage.Length > 100000) //Recreating file if its size more then 100KB and it is empty
{
if (LTrie.Count(true) == 0)
{
LTrie.Storage.RecreateFiles();
LTrie.Dispose();
Storage = new StorageLayer(Path.Combine(engine.MainFolder, TableFileName), LTrieSettings, engine.Configuration);
LTrie = new LTrie(Storage);
LTrie.TableName = "DBreeze.TextIndexer";
}
}
if (LTrie.Count(true) > 0)
{
this.StartDefferedIndexing();
}
}
private void RestoreNotFinishedTransactions()
{
//TODO Trie settings from the table must be taken from schema (when they will differ)
//STORE FILE NAME of rollback not table name
try
{
byte[] btCommittedTablesNames = null;
List <string> committedTablesNames = new List <string>();
if (LTrie.Count(false) == 0) //All ok
{
LTrie.RemoveAll(true);
return;
}
string physicalPathToTheUserTable = String.Empty;
//Settigns and storage for Committed tables !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MUST BE TAKEN FROM SCHEMA, FOR NOW DEFAULT
TrieSettings ltrSet = null;
IStorage storage = null;
DBriize.LianaTrie.LTrie ltrie = null;
foreach (var row in LTrie.IterateForward(true, false))
{
btCommittedTablesNames = row.GetFullValue(true);
committedTablesNames = System.Text.Encoding.UTF8.GetString(btCommittedTablesNames).DeserializeXml <List <string> >();
foreach (var fn in committedTablesNames)
{
//Trying to get path from the Schema, there is universal function for getting table physical TABLE FULL PATH /NAME
physicalPathToTheUserTable = Engine.DBriizeSchema.GetPhysicalPathToTheUserTable(fn);
//Returned path can be empty, if no more such table
if (physicalPathToTheUserTable == String.Empty)
{
continue;
}
//We don't restore in-memory tables
if (physicalPathToTheUserTable == "MEMORY")
{
continue;
}
//we open ltrie, and it automatically restores rollback
ltrSet = new TrieSettings(); //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MUST BE TAKEN FROM SCHEMA, FOR NOW DEFAULT
//storage = new TrieDiskStorage(physicalPathToTheUserTable, ltrSet, Engine.Configuration);
storage = new StorageLayer(physicalPathToTheUserTable, ltrSet, Engine.Configuration);
ltrie = new LTrie(storage);
//closing trie, that Schema could open it again
ltrie.Dispose();
////Deleting rollback file for such table
//physicalPathToTheUserTable += ".rol";
//System.IO.File.Delete(physicalPathToTheUserTable);
}
committedTablesNames.Clear();
}
//If all ok, recreate file
LTrie.RemoveAll(true);
}
catch (OperationCanceledException ex)
{
throw ex;
}
//catch (System.Threading.ThreadAbortException ex)
//{
// //We don'T make DBisOperable = false;
// throw ex;
//}
catch (Exception)
{
//BRINGS TO DB NOT OPERATABLE
this.Engine.DBisOperable = false;
this.Engine.DBisOperableReason = "TransactionsCoordinator.RestoreNotFinishedTransaction";
//NOT CASCADE ADD EXCEPTION
throw DBriizeException.Throw(DBriizeException.eDBriizeExceptions.CLEAN_ROLLBACK_FILES_FOR_FINISHED_TRANSACTIONS_FAILED);
}
}
