public virtual void Initialize()
{
#region Main Tree Initialization
var treeOptions = new BPlusTree <AttributeValue, long> .OptionsV2(AttributeValueSerializer.Global,
new PrimitiveSerializer());
if (_configuration.JournalEnabled)
{
var transactionLogOptions = new TransactionLogOptions <AttributeValue, long>(_path + ".tlog",
new AttributeValueSerializer(), new PrimitiveSerializer());
transactionLogOptions.FileOptions = FileOptions.WriteThrough;
transactionLogOptions.FileBuffer = 4096;
treeOptions.TransactionLog = new TransactionLog <AttributeValue, long>(transactionLogOptions);
treeOptions.TransactionLogFileName = transactionLogOptions.FileName;
treeOptions.StoragePerformance = StoragePerformance.LogFileNoCache;
}
else
{
treeOptions.StoragePerformance = StoragePerformance.LogFileInCache;
}
if (_configuration.CachePolicy != null)
{
switch (_configuration.CachePolicy.ToLower())
{
case "all":
treeOptions.CachePolicy = CachePolicy.All;
break;
case "none":
treeOptions.CachePolicy = CachePolicy.None;
break;
default:
treeOptions.CachePolicy = CachePolicy.Recent;
break;
}
}
else
{
treeOptions.CachePolicy = CachePolicy.Recent;
}
treeOptions.FileName = _path;
treeOptions.StorageType = StorageType.Disk;
treeOptions.CreateFile = CreatePolicy.IfNeeded;
treeOptions.BTreeOrder = 64;
treeOptions.LockingFactory = new IgnoreLockFactory();
treeOptions.CallLevelLock = new IgnoreLocking();
treeOptions.StoragePerformance = StoragePerformance.Default;
try
{
_tree = new BPlusTree <AttributeValue, long>(treeOptions);
_tree.EnableCount();
if (LoggerManager.Instance.IndexLogger != null && LoggerManager.Instance.IndexLogger.IsInfoEnabled)
{
LoggerManager.Instance.IndexLogger.Info("BPlusIndex",
"Index (s) " + _indexKey.ToString() + " defined");
}
}
catch (Exception ex)
{
if (LoggerManager.Instance.IndexLogger != null)
{
LoggerManager.Instance.IndexLogger.Error("BPlusIndex",
"Error: " + ErrorCodes.Indexes.TREE_INITIALIZATION_FAILURE +
" - Failed to initialize Index for attribute(s) " + _indexKey.ToString() + Environment.NewLine + ex.ToString());
throw new IndexException(ErrorCodes.Indexes.TREE_INITIALIZATION_FAILURE);
}
}
#endregion
#region Transitory Tree Initialization
var _transitoryTreeOps =
new BPlusTree <AttributeValue, IndexOp <long> > .Options(AttributeValueSerializer.Global,
IndexOpSerializer <long> .Global);
_transitoryTreeOps.StorageType = StorageType.Memory;
_transitoryTreeOps.LockingFactory = new LockFactory <ReaderWriterLocking>();
_transitoryTreeOps.CallLevelLock = new ReaderWriterLocking();
_transitionTree = new BPlusTree <AttributeValue, IndexOp <long> >(_transitoryTreeOps);
opsToCommit = new ConcurrentDictionary <long, IList <IndexOp <long> > >();
appliedOps = new ClusteredList <long>();
#endregion
_bounds = new BoundingBox(1);
try
{
RestoreBoundsFromTree();
}
catch (Exception ex)
{
if (LoggerManager.Instance.IndexLogger != null)
{
LoggerManager.Instance.IndexLogger.Error("BPlusIndex",
"Error: " + ErrorCodes.Indexes.NUMERIC_BOUNDS_CALCULATION_FAILURE +
" - Failed to calculate numeric bounds of Index for attribute(s) " + _indexKey.ToString() +
Environment.NewLine + ex);
throw new IndexException(ErrorCodes.Indexes.NUMERIC_BOUNDS_CALCULATION_FAILURE);
}
}
}
public static string Dump(this IndexKey value)
{
return(string.Format("{0}{1}{0}", value.Type == IndexDataType.String ? "'" : "", value.ToString()));
}