/// <summary>
/// Valida os dados que devem expirar.
/// </summary>
/// <returns></returns>
public bool Expire()
{
bool flag = false;
lock (this)
_runCount++;
_sleepInterval = Convert.ToInt32(ServiceConfiguration.ExpirationBulkRemoveDelay);
_removeThreshhold = Convert.ToInt32(ServiceConfiguration.ExpirationBulkRemoveSize);
CacheBase cacheImpl = _context.CacheImpl;
CacheBase cacheInternal = _context.CacheInternal;
Cache cacheRoot = _context.CacheRoot;
if (cacheInternal == null)
{
throw new InvalidOperationException("No cache instance defined");
}
ArrayList list = new ArrayList();
new ArrayList();
int num = 0;
Hashtable hashtable = null;
try
{
this.StartLogging();
DateTime now = DateTime.Now;
int diffSeconds = CachingUtils.DiffSeconds(now);
int num3 = (int)Math.Ceiling((double)(cacheInternal.Count * _cleanRatio));
if (_cacheLastAccessLoggingIntervalPassed >= _cacheLastAccessLoggingInterval)
{
_cacheLastAccessLoggingInterval = this.CacheLastAccessLoggingInterval;
_cacheLastAccessCountEnabled = this.IsCacheLastAccessCountEnabled;
_cacheLastAccessCountLoggingEnabled = this.IsCacheLastAccessLoggingEnabled;
_cacheLastAccessInterval = this.CacheLastAccessCountInterval;
}
else
{
_cacheLastAccessLoggingIntervalPassed++;
}
if ((_cacheLastAccessCountEnabled && _cacheLastAccessCountLoggingEnabled) && (_cacheLastAccessLoggingIntervalPassed >= _cacheLastAccessLoggingInterval))
{
_cacheLastAccessLoggingIntervalPassed = 0;
hashtable = new Hashtable();
}
lock (_mainIndex.SyncRoot)
{
IDictionaryEnumerator enumerator2 = _mainIndex.GetEnumerator();
if (enumerator2 != null)
{
while (enumerator2.MoveNext())
{
var entry2 = enumerator2.Value as ExpiryIndexEntry;
var exh = entry2.Hint;
if (((exh != null) && _cacheLastAccessCountEnabled) && (exh is IdleExpiration))
{
IdleExpiration expiration = exh as IdleExpiration;
TimeSpan span = (TimeSpan)(CachingUtils.GetDateTime(CachingUtils.DiffSeconds(DateTime.Now)) - CachingUtils.GetDateTime(expiration.LastAccessTime));
if (span.TotalMinutes >= _cacheLastAccessInterval)
{
num++;
if (hashtable != null)
{
hashtable.Add(enumerator2.Key, null);
}
}
}
if ((((exh != null) && (exh.SortKey.CompareTo(diffSeconds) < 0)) && !exh.IsRoutable) && exh.DetermineExpiration(_context))
{
if (exh.NeedsReSync && (_context.DatasourceMgr != null))
{
CacheEntry entry3 = cacheInternal.Get(enumerator2.Key, new OperationContext(OperationContextFieldName.OperationType, OperationContextOperationType.CacheOperation));
if (entry3 != null)
{
_context.DatasourceMgr.ResyncCacheItemAsync(enumerator2.Key, exh, null, entry3.GroupInfo, entry3.QueryInfo, entry3.ResyncProviderName);
}
else
{
_context.DatasourceMgr.ResyncCacheItemAsync(enumerator2.Key, exh, null, null, null, entry3.ResyncProviderName);
}
}
else
{
list.Add(enumerator2.Key);
}
if ((num3 > 0) && (list.Count == num3))
{
break;
}
}
}
}
}
}
catch (Exception exception)
{
this.Logger.Error(("LocalCache(Expire): " + exception.ToString()).GetFormatter());
}
finally
{
this.ApplyLoggs();
ArrayList list4 = new ArrayList();
ArrayList c = null;
DateTime time1 = DateTime.Now;
try
{
if (list.Count > 0)
{
var list6 = new ArrayList();
for (int i = 0; (i < list.Count) && !_cacheCleared; i++)
{
list6.Add(list[i]);
if ((list6.Count % _removeThreshhold) == 0)
{
try
{
if (this.IsDisposed)
{
break;
}
c = cacheInternal.RemoveSync(list6.ToArray(), ItemRemoveReason.Expired, false, new OperationContext(OperationContextFieldName.OperationType, OperationContextOperationType.CacheOperation)) as ArrayList;
flag = true;
}
catch (Exception exception2)
{
this.Logger.Error(("an error occured while removing expired items. Error " + exception2.ToString()).GetFormatter());
}
list6.Clear();
if ((c != null) && (c.Count > 0))
{
list4.AddRange(c);
}
System.Threading.Thread.Sleep((int)(_sleepInterval * 1000));
}
}
if (!this.IsDisposed && (list6.Count > 0))
{
try
{
c = cacheInternal.RemoveSync(list6.ToArray(), ItemRemoveReason.Expired, false, new OperationContext(OperationContextFieldName.OperationType, OperationContextOperationType.CacheOperation)) as ArrayList;
flag = true;
if ((c != null) && (c.Count > 0))
{
list4.AddRange(c);
}
}
catch (Exception exception3)
{
this.Logger.Error(("an error occured while removing expired items. Error " + exception3.ToString()).GetFormatter());
}
}
}
if (!this.IsDisposed && (list4.Count > 0))
{
ArrayList list7 = new ArrayList();
if (cacheRoot != null)
{
foreach (object obj2 in list4)
{
if (obj2 != null)
{
list7.Add(obj2);
if ((list7.Count % 100) == 0)
{
try
{
if (this.IsDisposed)
{
break;
}
cacheRoot.CascadedRemove(list7.ToArray(), ItemRemoveReason.Expired, true, new OperationContext(OperationContextFieldName.OperationType, OperationContextOperationType.CacheOperation));
}
catch (Exception exception4)
{
this.Logger.Error(("an error occured while removing dependent items. Error " + exception4.ToString()).GetFormatter());
}
list7.Clear();
}
}
}
if (!this.IsDisposed && (list7.Count > 0))
{
try
{
cacheRoot.CascadedRemove(list7.ToArray(), ItemRemoveReason.Expired, true, new OperationContext(OperationContextFieldName.OperationType, OperationContextOperationType.CacheOperation));
}
catch (Exception exception5)
{
this.Logger.Error(("an error occured while removing dependent items. Error " + exception5.ToString()).GetFormatter());
}
list7.Clear();
}
}
}
}
finally
{
_transitoryIndex.Clear();
lock (this)
{
_cacheCleared = false;
}
if (hashtable != null)
{
StringBuilder builder = new StringBuilder();
IDictionaryEnumerator enumerator3 = hashtable.GetEnumerator();
int num5 = 1;
while (enumerator3.MoveNext())
{
builder.Append(enumerator3.Key + ", ");
if ((num5 % 10) == 0)
{
builder.Append("\r\n");
num5 = 1;
}
else
{
num5++;
}
}
this.Logger.Info(builder.ToString().Trim().GetFormatter());
}
}
}
return(flag);
}