public PrefetchingBehavior(PrefetchingUser prefetchingUser,
WorkContext context,
BaseBatchSizeAutoTuner autoTuner,
string prefetchingUserDescription,
bool isDefault = false,
Func<int> getPrefetchintBehavioursCount = null,
Func<PrefetchingSummary> getPrefetcherSummary = null)
{
this.context = context;
this.autoTuner = autoTuner;
PrefetchingUser = prefetchingUser;
this.userDescription = prefetchingUserDescription;
this.IsDefault = isDefault;
this.getPrefetchintBehavioursCount = getPrefetchintBehavioursCount ?? (() => 1);
this.getPrefetcherSummary = getPrefetcherSummary ?? GetSummary;
MemoryStatistics.RegisterLowMemoryHandler(this);
LastTimeUsed = DateTime.MinValue;
ingestMeter = context.MetricsCounters.DbMetrics.Meter("metrics",
"ingest/sec", "In memory documents held by this prefetcher", TimeUnit.Seconds);
returnedDocsMeter = context.MetricsCounters.DbMetrics.Meter("metrics",
"returned docs/sec", "Documents being served by this prefetcher", TimeUnit.Seconds);
if (isDefault)
{
context.Database.TransactionalStorage.Batch(accessor =>
{
recentEtag = accessor.Staleness.GetMostRecentDocumentEtag();
});
}
}
public PrefetchingBehavior(PrefetchingUser prefetchingUser, WorkContext context, BaseBatchSizeAutoTuner autoTuner)
{
this.context = context;
this.autoTuner = autoTuner;
PrefetchingUser = prefetchingUser;
MemoryStatistics.RegisterLowMemoryHandler(this);
}
public PrefetchingBehavior CreatePrefetchingBehavior(PrefetchingUser user, BaseBatchSizeAutoTuner autoTuner)
{
lock (this)
{
var newPrefetcher = new PrefetchingBehavior(user, workContext, autoTuner ?? new IndependentBatchSizeAutoTuner(workContext));
prefetchingBehaviors = new List<PrefetchingBehavior>(prefetchingBehaviors)
{
newPrefetcher
};
return newPrefetcher;
}
}
public PrefetchingBehavior GetPrefetchingBehavior(PrefetchingUser user, BaseBatchSizeAutoTuner autoTuner)
{
PrefetchingBehavior value;
if (prefetchingBehaviors.TryGetValue(user, out value))
return value;
lock (this)
{
if (prefetchingBehaviors.TryGetValue(user, out value))
return value;
value = new PrefetchingBehavior(workContext, autoTuner ?? new IndependentBatchSizeAutoTuner(workContext));
prefetchingBehaviors = new Dictionary<PrefetchingUser, PrefetchingBehavior>(prefetchingBehaviors)
{
{user, value}
};
return value;
}
}
public PrefetchingBehavior CreatePrefetchingBehavior(PrefetchingUser user, BaseBatchSizeAutoTuner autoTuner, string prefetchingUserDescription, bool isDefault = false)
{
lock (this)
{
var newPrefetcher =
new PrefetchingBehavior(user,
workContext,
autoTuner ?? new IndependentBatchSizeAutoTuner(workContext, user),
prefetchingUserDescription,
isDefault,
GetPrefetchintBehavioursCount,
GetPrefetchingBehaviourSummary);
prefetchingBehaviors = new List<PrefetchingBehavior>(prefetchingBehaviors)
{
newPrefetcher
};
return newPrefetcher;
}
}
public PrefetchingBehavior(WorkContext context, BaseBatchSizeAutoTuner autoTuner)
{
this.context = context;
this.autoTuner = autoTuner;
}
public PrefetchingBehavior(WorkContext context, BaseBatchSizeAutoTuner autoTuner)
{
this.context = context;
this.autoTuner = autoTuner;
}
