DeleteResult <JSONDocument> IDocumentStore.DeleteDocument(RemoveOperation operation)
{
UsageStats stats = new UsageStats();
stats.BeginSample();
DeleteResult <JSONDocument> result = new DeleteResult <JSONDocument>();
CacheItem cItem;
if (!_cache.ContainsKey(operation.RowId))
{
//TODO: Read-through
if (!_persistenceManager.MetadataIndex(_parent.Name).ContainsRowId(operation.RowId))
{
if (LoggerManager.Instance.StorageLogger != null && LoggerManager.Instance.StorageLogger.IsWarnEnabled)
{
LoggerManager.Instance.StorageLogger.Warn("Delete : document not found.", "Document not found while deleting in metadataIndex. rowId = " + operation.RowId + " collection = " + Name);
}
AddFailedOperation(operation);
return(result);
}
cItem = LoadDocument(operation.RowId, operation.Context);
}
else
{
cItem = CacheGet(operation.RowId);
}
//Remove an item from eviction index, so that it's not marked for eviction.
if (cItem != null)
{
_evictionPolicy.Remove(operation.RowId, cItem.EvictionHint);
}
result.Document = cItem.Document;
result.RowId = operation.RowId;
//_cache.Remove(operation.RowId);
//CacheRemove(operation.RowId);
_indexManager.UpdateIndex(operation.RowId, result.Document, new JSONDocument(), operation.OperationId);
cItem.Flag.SetBit(BitsetConstants.DocumentDirty);
cItem.Flag.SetBit(BitsetConstants.MarkedForDeletion);
PersistenceOperation persistenceOperation = new PersistenceDeleteOperation(operation.OperationId, _parent.Name, operation.RowId, cItem, operation.Context);
AddToPersistenceDictionary(persistenceOperation);
_persistenceManager.MetadataIndex(_parent.Name).Remove(new DocumentKey(cItem.Document.Key));
if (_statsCollector != null)
{
stats.EndSample();
_statsCollector.IncrementStatsValue(StatisticsType.AvgDeleteTime, stats.Current);
_statsCollector.IncrementStatsValue(StatisticsType.DeletesPerSec);
}
return(result);
}
public void Remove(object key, EvictionHint hint)
{
Sync.AcquireWriterLock(Timeout.Infinite);
try
{
_evctPolicy.Remove(key, hint);
}
finally
{
Sync.ReleaseWriterLock();
}
}
/// <summary>
/// Remove a entrada associada com a chave informada.
/// </summary>
/// <param name="key">Chave da entrada que será removida.</param>
/// <param name="removalReason"></param>
/// <param name="isUserOperation"></param>
/// <param name="operationContext"></param>
/// <returns></returns>
internal override CacheEntry RemoveInternal(object key, ItemRemoveReason removalReason, bool isUserOperation, OperationContext operationContext)
{
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
CacheEntry entry = (CacheEntry)_cacheStore.Remove(key);
if ((entry != null) && (_evictionPolicy != null))
{
_evictionPolicy.Remove(key, entry.EvictionHint);
}
return(entry);
}
/// <summary>
/// Removes the object and key pair from the cache. The key is specified as parameter.
/// Moreover it take a removal reason and a boolean specifying if a notification should
/// be raised.
/// </summary>
/// <param name="key">key of the entry.</param>
/// <param name="removalReason">reason for the removal.</param>
/// <param name="notify">boolean specifying to raise the event.</param>
/// <returns>item value</returns>
internal override CacheEntry RemoveInternal(object key, ItemRemoveReason removalReason, bool isUserOperation, OperationContext operationContext, bool cloneEntry, bool needUserPayload)
{
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
CacheEntry e = (CacheEntry)_cacheStore.Remove(key);
if (e != null)
{
//Entry is no more part of store
e.IsStored = false;
if (_evictionPolicy != null && e.EvictionHint != null)
{
_evictionPolicy.Remove(key, e.EvictionHint);
}
if (_notifyCacheFull)
{
_notifyCacheFull = false;
}
if (cloneEntry)
{
var clone = e.DeepClone(operationContext.UseObjectPool ? _context.TransactionalPoolManager : _context.FakeObjectPool, true);
//return entry to the store pool
MiscUtil.ReturnEntryToPool(e, _context.StorePoolManager);
e = clone;
}
}
if (_context.PerfStatsColl != null)
{
if (_evictionPolicy != null)
{
_context.PerfStatsColl.SetEvictionIndexSize((long)_evictionPolicy.IndexInMemorySize);
}
if (_context.ExpiryMgr != null)
{
_context.PerfStatsColl.SetExpirationIndexSize((long)_context.ExpiryMgr.IndexInMemorySize);
}
}
return(e);
}
/// <summary>
/// Removes the object and key pair from the cache. The key is specified as parameter.
/// Moreover it take a removal reason and a boolean specifying if a notification should
/// be raised.
/// </summary>
/// <param name="key">key of the entry.</param>
/// <param name="removalReason">reason for the removal.</param>
/// <param name="notify">boolean specifying to raise the event.</param>
/// <returns>item value</returns>
internal override CacheEntry RemoveInternal(object key, ItemRemoveReason removalReason, bool isUserOperation, OperationContext operationContext)
{
if (ServerMonitor.MonitorActivity)
{
ServerMonitor.LogClientActivity("LocalCache.Remove", "");
}
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
CacheEntry e = (CacheEntry)_cacheStore.Remove(key);
if (e != null)
{
if (_evictionPolicy != null && e.EvictionHint != null)
{
_evictionPolicy.Remove(key, e.EvictionHint);
}
if (_notifyCacheFull)
{
_notifyCacheFull = false;
}
}
if (_context.PerfStatsColl != null)
{
if (_evictionPolicy != null)
{
_context.PerfStatsColl.SetEvictionIndexSize((long)_evictionPolicy.IndexInMemorySize);
}
if (_context.ExpiryMgr != null)
{
_context.PerfStatsColl.SetExpirationIndexSize((long)_context.ExpiryMgr.IndexInMemorySize);
}
}
return(e);
}
void IEvictionPolicy.Notify(object key, EvictionHint oldhint, EvictionHint newHint)
{
//always use the new priority eviction hint.
EvictionHint hint = newHint;
if (hint != null)
{
CacheItemPriority hintPriority = ((PriorityEvictionHint)hint).Priority;
if (hintPriority == CacheItemPriority.Default)
{
hintPriority = this._priority;//set the default priority from the config.
((PriorityEvictionHint)hint).Priority = this._priority;
}
if ((oldhint != null))
{
CacheItemPriority oldPriority = ((PriorityEvictionHint)oldhint).Priority;
CacheItemPriority newPriority = ((PriorityEvictionHint)newHint).Priority;
if (oldPriority != newPriority)
{
IEvictionPolicy temp = this as IEvictionPolicy;
temp.Remove(key, oldhint);
}
}
lock (_index.SyncRoot)
{
switch (hintPriority)
{
case CacheItemPriority.Low:
if (_index[0] == null)
{
_index[0] = new HashVector();
}
_index[0][key] = hint;
break;
case CacheItemPriority.BelowNormal:
if (_index[1] == null)
{
_index[1] = new HashVector();
}
_index[1][key] = hint;
break;
case CacheItemPriority.Normal:
if (_index[2] == null)
{
_index[2] = new HashVector();
}
_index[2][key] = hint;
break;
case CacheItemPriority.AboveNormal:
if (_index[3] == null)
{
_index[3] = new HashVector();
}
_index[3][key] = hint;
break;
case CacheItemPriority.High:
if (_index[4] == null)
{
_index[4] = new HashVector();
}
_index[4][key] = hint;
break;
}
}
}
}
void IEvictionPolicy.Notify(object key, EvictionHint oldhint, EvictionHint newHint)
{
//always use the new priority eviction hint.
EvictionHint hint = newHint;
if (hint != null)
{
CacheItemPriority hintPriority = ((PriorityEvictionHint)hint).Priority;
if (hintPriority == CacheItemPriority.Default)
{
hintPriority = this._priority;//set the default priority from the config.
((PriorityEvictionHint)hint).Priority = this._priority;
}
if ((oldhint != null))
{
CacheItemPriority oldPriority = ((PriorityEvictionHint)oldhint).Priority;
CacheItemPriority newPriority = ((PriorityEvictionHint)newHint).Priority;
if (oldPriority != newPriority)
{
IEvictionPolicy temp = this as IEvictionPolicy;
temp.Remove(key, oldhint);
}
}
lock (_index.SyncRoot)
{
int changedIndex = -1;
switch (hintPriority)
{
case CacheItemPriority.Low:
if (_index[0] == null)
{
_index[0] = new Hashtable(25000, 0.7f);
}
_index[0][key] = hint;
changedIndex = 0;
break;
case CacheItemPriority.BelowNormal:
if (_index[1] == null)
{
_index[1] = new Hashtable(25000, 0.7f);
}
_index[1][key] = hint;
changedIndex = 1;
break;
case CacheItemPriority.Normal:
if (_index[2] == null)
{
_index[2] = new Hashtable(25000, 0.7f);
}
_index[2][key] = hint;
changedIndex = 2;
break;
case CacheItemPriority.AboveNormal:
if (_index[3] == null)
{
_index[3] = new Hashtable(25000, 0.7f);
}
_index[3][key] = hint;
changedIndex = 3;
break;
case CacheItemPriority.High:
if (_index[4] == null)
{
_index[4] = new Hashtable(25000, 0.7f);
}
_index[4][key] = hint;
changedIndex = 4;
break;
}
if (changedIndex > -1 && _index[changedIndex].Count > _evictionIndexMaxCounts[changedIndex])
{
_evictionIndexMaxCounts[changedIndex] = _index[changedIndex].Count;
}
}
}
}
