public SubordIndexedTableLookupTableStrategy(
SubordTableLookupStrategy inner,
ILockable @lock)
{
this._inner = inner;
this._lock = @lock;
}
public SubordIndexedTableLookupStrategyLocking(
SubordTableLookupStrategy inner,
IReaderWriterLock statementLock)
{
this._inner = inner;
this._statementLock = statementLock;
}
public SubordWMatchExprLookupStrategyIndexedFiltered(
ExprEvaluator joinExpr,
SubordTableLookupStrategy tableLookupStrategy)
{
this.joinExpr = joinExpr;
this.eventsPerStream = new EventBean[2];
this.tableLookupStrategy = tableLookupStrategy;
}
public void AssignService(
int num,
SubordTableLookupStrategy subselectStrategy)
{
AIRegistryUtil.CheckExpand(num, strategies);
strategies.Array[num] = subselectStrategy;
InstanceCount++;
}
public SubSelectFactoryResult(
ViewableActivationResult subselectActivationResult,
SubSelectStrategyRealization realization,
SubordTableLookupStrategy lookupStrategy)
{
this.subselectActivationResult = subselectActivationResult;
this.lookupStrategy = lookupStrategy;
this.subselectAggregationPreprocessor = realization.SubselectAggregationPreprocessor;
this.aggregationService = realization.AggregationService;
this.priorStrategy = realization.PriorStrategy;
this.previousStrategy = realization.PreviousStrategy;
this.subselectView = realization.SubselectView;
this.indexes = realization.Indexes;
}
public void Assign(
int agentInstanceId,
SubordTableLookupStrategy lookupStrategy,
AggregationService aggregationService,
PriorEvalStrategy priorEvalStrategy,
PreviousGetterStrategy previousGetterStrategy)
{
LookupStrategies.AssignService(agentInstanceId, lookupStrategy);
AggregationServices?.AssignService(agentInstanceId, aggregationService);
PriorEvalStrategies?.AssignService(agentInstanceId, priorEvalStrategy);
PreviousGetterStrategies?.AssignService(agentInstanceId, previousGetterStrategy);
}
public SubSelectStrategyRealization(
SubordTableLookupStrategy strategy,
SubselectAggregationPreprocessorBase subselectAggregationPreprocessor,
AggregationService subselectAggregationService,
IDictionary <ExprPriorNode, ExprPriorEvalStrategy> priorNodeStrategies,
IDictionary <ExprPreviousNode, ExprPreviousEvalStrategy> previousNodeStrategies,
Viewable subselectView,
StatementAgentInstancePostLoad postLoad)
{
Strategy = strategy;
SubselectAggregationPreprocessor = subselectAggregationPreprocessor;
SubselectAggregationService = subselectAggregationService;
PriorNodeStrategies = priorNodeStrategies;
PreviousNodeStrategies = previousNodeStrategies;
SubselectView = subselectView;
PostLoad = postLoad;
}
public SubSelectStrategyRealization(
SubordTableLookupStrategy lookupStrategy,
SubselectAggregationPreprocessorBase subselectAggregationPreprocessor,
AggregationService aggregationService,
PriorEvalStrategy priorStrategy,
PreviousGetterStrategy previousStrategy,
Viewable subselectView,
EventTable[] indexes)
{
this.lookupStrategy = lookupStrategy;
this.subselectAggregationPreprocessor = subselectAggregationPreprocessor;
this.aggregationService = aggregationService;
this.priorStrategy = priorStrategy;
this.previousStrategy = previousStrategy;
this.subselectView = subselectView;
this.indexes = indexes;
}
protected ICollection<EventBean> LookupInternal(
EventBean[] events,
ExprEvaluatorContext context,
EventTableQuadTree index,
SubordTableLookupStrategy strategy)
{
var x = Eval(factory.X, events, context, "x");
var y = Eval(factory.Y, events, context, "y");
var width = Eval(factory.Width, events, context, "width");
var height = Eval(factory.Height, events, context, "height");
if (context.InstrumentationProvider.Activated()) {
context.InstrumentationProvider.QIndexSubordLookup(strategy, index, null);
var result = this.index.QueryRange(x, y, width, height);
context.InstrumentationProvider.AIndexSubordLookup(result, null);
return result;
}
return this.index.QueryRange(x, y, width, height);
}
public void QIndexSubordLookup(SubordTableLookupStrategy subordTableLookupStrategy, EventTable optionalEventIndex, int[] keyStreamNums)
{
}
public SubSelectStrategyRealization Instantiate(
EPServicesContext services,
Viewable viewableRoot,
AgentInstanceContext agentInstanceContext,
IList <StopCallback> stopCallbackList,
int subqueryNumber,
bool isRecoveringResilient)
{
IList <ViewFactory> viewFactoryChain = _subSelectHolder.ViewFactoryChain.FactoryChain;
// add "prior" view factory
var hasPrior = _viewResourceDelegate.PerStream[0].PriorRequests != null &&
!_viewResourceDelegate.PerStream[0].PriorRequests.IsEmpty();
if (hasPrior)
{
var priorEventViewFactory = EPStatementStartMethodHelperPrior.GetPriorEventViewFactory(
agentInstanceContext.StatementContext, 1024 + _subqueryNumber, viewFactoryChain.IsEmpty(), true,
subqueryNumber);
viewFactoryChain = new List <ViewFactory>(viewFactoryChain);
viewFactoryChain.Add(priorEventViewFactory);
}
// create factory chain context to hold callbacks specific to "prior" and "prev"
var viewFactoryChainContext = AgentInstanceViewFactoryChainContext.Create(
viewFactoryChain, agentInstanceContext, _viewResourceDelegate.PerStream[0]);
// make view
var createResult = services.ViewService.CreateViews(
viewableRoot, viewFactoryChain, viewFactoryChainContext, false);
var subselectView = createResult.FinalViewable;
// make aggregation service
AggregationService aggregationService = null;
if (_aggregationServiceFactory != null)
{
aggregationService = _aggregationServiceFactory.AggregationServiceFactory.MakeService(
agentInstanceContext, agentInstanceContext.StatementContext.EngineImportService, true,
subqueryNumber);
}
// handle "prior" nodes and their strategies
var priorNodeStrategies = EPStatementStartMethodHelperPrior.CompilePriorNodeStrategies(
_viewResourceDelegate, new AgentInstanceViewFactoryChainContext[]
{
viewFactoryChainContext
});
// handle "previous" nodes and their strategies
var previousNodeStrategies =
EPStatementStartMethodHelperPrevious.CompilePreviousNodeStrategies(
_viewResourceDelegate, new AgentInstanceViewFactoryChainContext[]
{
viewFactoryChainContext
});
// handle aggregated and non-correlated queries: there is no strategy or index
if (_aggregationServiceFactory != null && !_correlatedSubquery)
{
View aggregatorView;
if (_groupKeys == null)
{
if (_filterExprEval == null)
{
aggregatorView = new SubselectAggregatorViewUnfilteredUngrouped(
aggregationService, _filterExprEval, agentInstanceContext, null);
}
else
{
aggregatorView = new SubselectAggregatorViewFilteredUngrouped(
aggregationService, _filterExprEval, agentInstanceContext, null, _filterExprNode);
}
}
else
{
if (_filterExprEval == null)
{
aggregatorView = new SubselectAggregatorViewUnfilteredGrouped(
aggregationService, _filterExprEval, agentInstanceContext, _groupKeys);
}
else
{
aggregatorView = new SubselectAggregatorViewFilteredGrouped(
aggregationService, _filterExprEval, agentInstanceContext, _groupKeys, _filterExprNode);
}
}
subselectView.AddView(aggregatorView);
if (services.EventTableIndexService.AllowInitIndex(isRecoveringResilient))
{
Preload(services, null, aggregatorView, agentInstanceContext);
}
return(new SubSelectStrategyRealization(
NULL_ROW_STRATEGY, null, aggregationService, priorNodeStrategies, previousNodeStrategies,
subselectView, null));
}
// create index/holder table
EventTable[] index =
_pair.First.MakeEventTables(
new EventTableFactoryTableIdentAgentInstanceSubq(agentInstanceContext, _subqueryNumber));
stopCallbackList.Add(new SubqueryStopCallback(index));
// create strategy
SubordTableLookupStrategy strategy = _pair.Second.MakeStrategy(index, null);
SubselectAggregationPreprocessorBase subselectAggregationPreprocessor = null;
// handle unaggregated or correlated queries or
if (_aggregationServiceFactory != null)
{
if (_groupKeys == null)
{
if (_filterExprEval == null)
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorUnfilteredUngrouped(
aggregationService, _filterExprEval, null);
}
else
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorFilteredUngrouped(
aggregationService, _filterExprEval, null);
}
}
else
{
if (_filterExprEval == null)
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorUnfilteredGrouped(
aggregationService, _filterExprEval, _groupKeys);
}
else
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorFilteredGrouped(
aggregationService, _filterExprEval, _groupKeys);
}
}
}
// preload when allowed
StatementAgentInstancePostLoad postLoad;
if (services.EventTableIndexService.AllowInitIndex(isRecoveringResilient))
{
Preload(services, index, subselectView, agentInstanceContext);
postLoad = new ProxyStatementAgentInstancePostLoad()
{
ProcExecutePostLoad = () => Preload(services, index, subselectView, agentInstanceContext),
ProcAcceptIndexVisitor = visitor =>
{
foreach (var table in index)
{
visitor.Visit(table);
}
},
};
}
else
{
postLoad = new ProxyStatementAgentInstancePostLoad
{
ProcExecutePostLoad = () =>
{
// no post-load
},
ProcAcceptIndexVisitor = visitor =>
{
foreach (var table in index)
{
visitor.Visit(table);
}
},
};
}
var bufferView = new BufferView(_subSelectHolder.StreamNumber);
bufferView.Observer = new SubselectBufferObserver(index);
subselectView.AddView(bufferView);
return(new SubSelectStrategyRealization(
strategy, subselectAggregationPreprocessor, aggregationService, priorNodeStrategies,
previousNodeStrategies, subselectView, postLoad));
}
public SubSelectStrategyRealization Instantiate(
EPServicesContext services,
Viewable viewableRoot,
AgentInstanceContext agentInstanceContext,
IList <StopCallback> stopCallbackList,
int subqueryNumber,
bool isRecoveringResilient)
{
SubselectAggregationPreprocessorBase subselectAggregationPreprocessor = null;
AggregationService aggregationService = null;
if (_aggregationServiceFactory != null)
{
aggregationService = _aggregationServiceFactory.AggregationServiceFactory.MakeService(
agentInstanceContext, agentInstanceContext.StatementContext.EngineImportService, true, subqueryNumber);
if (_groupByKeys == null)
{
if (_filterExprEval == null)
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorUnfilteredUngrouped(
aggregationService, _filterExprEval, null);
}
else
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorFilteredUngrouped(aggregationService, _filterExprEval, null);
}
}
else
{
if (_filterExprEval == null)
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorUnfilteredGrouped(
aggregationService, _filterExprEval, _groupByKeys);
}
else
{
subselectAggregationPreprocessor =
new SubselectAggregationPreprocessorFilteredGrouped(
aggregationService, _filterExprEval, _groupByKeys);
}
}
}
SubordTableLookupStrategy subqueryLookup;
if (_optionalNamedWindowProcessor != null)
{
NamedWindowProcessorInstance instance =
_optionalNamedWindowProcessor.GetProcessorInstance(agentInstanceContext);
if (_queryPlan == null)
{
if (instance.RootViewInstance.IsQueryPlanLogging && NamedWindowRootView.QueryPlanLog.IsInfoEnabled)
{
NamedWindowRootView.QueryPlanLog.Info("shared, full table scan");
}
subqueryLookup =
new SubordFullTableScanLookupStrategyLocking(
instance.RootViewInstance.DataWindowContents,
agentInstanceContext.EpStatementAgentInstanceHandle.StatementAgentInstanceLock);
}
else
{
EventTable[] tables = null;
if (!_optionalNamedWindowProcessor.IsVirtualDataWindow)
{
tables = SubordinateQueryPlannerUtil.RealizeTables(
_queryPlan.IndexDescs, instance.RootViewInstance.EventType,
instance.RootViewInstance.IndexRepository,
instance.RootViewInstance.DataWindowContents, agentInstanceContext,
isRecoveringResilient);
}
SubordTableLookupStrategy strategy = _queryPlan.LookupStrategyFactory.MakeStrategy(
tables, instance.RootViewInstance.VirtualDataWindow);
subqueryLookup = new SubordIndexedTableLookupStrategyLocking(
strategy, instance.TailViewInstance.AgentInstanceContext.AgentInstanceLock);
}
}
else
{
TableStateInstance state = _tableService.GetState(
_optionalTableMetadata.TableName, agentInstanceContext.AgentInstanceId);
ILockable iLock = agentInstanceContext.StatementContext.IsWritesToTables
? state.TableLevelRWLock.WriteLock
: state.TableLevelRWLock.ReadLock;
if (_queryPlan == null)
{
subqueryLookup = new SubordFullTableScanTableLookupStrategy(iLock, state.IterableTableScan);
}
else
{
EventTable[] indexes = new EventTable[_queryPlan.IndexDescs.Length];
for (int i = 0; i < indexes.Length; i++)
{
indexes[i] = state.IndexRepository.GetIndexByDesc(_queryPlan.IndexDescs[i].IndexMultiKey);
}
subqueryLookup = _queryPlan.LookupStrategyFactory.MakeStrategy(indexes, null);
subqueryLookup = new SubordIndexedTableLookupTableStrategy(subqueryLookup, iLock);
}
}
return(new SubSelectStrategyRealization(
subqueryLookup, subselectAggregationPreprocessor, aggregationService,
Collections.GetEmptyMap <ExprPriorNode, ExprPriorEvalStrategy>(),
Collections.GetEmptyMap <ExprPreviousNode, ExprPreviousEvalStrategy>(),
null, null));
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="tableLookupStrategy">the strategy for looking up in an index the matching events using correlation</param>
public SubordWMatchExprLookupStrategyIndexedUnfiltered(SubordTableLookupStrategy tableLookupStrategy)
{
_eventsPerStream = new EventBean[2];
_tableLookupStrategy = tableLookupStrategy;
}
public SubordWMatchExprLookupStrategy Realize(EventTable[] indexes, AgentInstanceContext agentInstanceContext, IEnumerable <EventBean> scanIterable, VirtualDWView virtualDataWindow)
{
SubordTableLookupStrategy strategy = _lookupStrategyFactory.MakeStrategy(indexes, virtualDataWindow);
return(new SubordWMatchExprLookupStrategyIndexedUnfiltered(strategy));
}
public void AssignService(
int num,
SubordTableLookupStrategy subselectStrategy)
{
services.Put(num, subselectStrategy);
}
public void DeassignService(int num)
{
service = null;
}
