public PatternSubexpressionPoolStmtSvc(
PatternSubexpressionPoolRuntimeSvc runtimeSvc,
PatternSubexpressionPoolStmtHandler stmtHandler)
{
RuntimeSvc = runtimeSvc;
StmtHandler = stmtHandler;
}
public StatementContext MakeContext(
int statementId,
string statementName,
string expression,
StatementType statementType,
EPServicesContext engineServices,
IDictionary <string, object> optAdditionalContext,
bool isFireAndForget,
Attribute[] annotations,
EPIsolationUnitServices isolationUnitServices,
bool stateless,
StatementSpecRaw statementSpecRaw,
IList <ExprSubselectNode> subselectNodes,
bool writesToTables,
object statementUserObject)
{
// Allocate the statement's schedule bucket which stays constant over it's lifetime.
// The bucket allows callbacks for the same time to be ordered (within and across statements) and thus deterministic.
var scheduleBucket = engineServices.SchedulingMgmtService.AllocateBucket();
// Create a lock for the statement
IReaderWriterLock defaultStatementAgentInstanceLock;
// For on-delete statements, use the create-named-window statement lock
var optCreateWindowDesc = statementSpecRaw.CreateWindowDesc;
var optOnTriggerDesc = statementSpecRaw.OnTriggerDesc;
if ((optOnTriggerDesc != null) && (optOnTriggerDesc is OnTriggerWindowDesc))
{
var windowName = ((OnTriggerWindowDesc)optOnTriggerDesc).WindowName;
if (engineServices.TableService.GetTableMetadata(windowName) == null)
{
defaultStatementAgentInstanceLock = engineServices.NamedWindowMgmtService.GetNamedWindowLock(windowName);
if (defaultStatementAgentInstanceLock == null)
{
throw new EPStatementException("Named window or table '" + windowName + "' has not been declared", expression);
}
}
else
{
defaultStatementAgentInstanceLock = engineServices.StatementLockFactory.GetStatementLock(statementName, annotations, stateless);
}
}
// For creating a named window, save the lock for use with on-delete/on-merge/on-Update etc. statements
else if (optCreateWindowDesc != null)
{
defaultStatementAgentInstanceLock =
engineServices.NamedWindowMgmtService.GetNamedWindowLock(optCreateWindowDesc.WindowName);
if (defaultStatementAgentInstanceLock == null)
{
defaultStatementAgentInstanceLock = engineServices.StatementLockFactory.GetStatementLock(
statementName, annotations, false);
engineServices.NamedWindowMgmtService.AddNamedWindowLock(
optCreateWindowDesc.WindowName, defaultStatementAgentInstanceLock, statementName);
}
}
else
{
defaultStatementAgentInstanceLock = engineServices.StatementLockFactory.GetStatementLock(
statementName, annotations, stateless);
}
StatementMetricHandle stmtMetric = null;
if (!isFireAndForget)
{
stmtMetric = engineServices.MetricsReportingService.GetStatementHandle(statementId, statementName);
}
var annotationData = AnnotationAnalysisResult.AnalyzeAnnotations(annotations);
var hasVariables = statementSpecRaw.HasVariables || (statementSpecRaw.CreateContextDesc != null);
var hasTableAccess = StatementContextFactoryUtil.DetermineHasTableAccess(subselectNodes, statementSpecRaw, engineServices);
var epStatementHandle = new EPStatementHandle(
statementId, statementName, expression, statementType, expression,
hasVariables, stmtMetric,
annotationData.Priority,
annotationData.IsPremptive,
hasTableAccess,
engineServices.MultiMatchHandlerFactory.GetDefaultHandler());
var patternContextFactory = new PatternContextFactoryDefault();
var optionalCreateNamedWindowName = statementSpecRaw.CreateWindowDesc != null
? statementSpecRaw.CreateWindowDesc.WindowName
: null;
var viewResolutionService = new ViewResolutionServiceImpl(
_viewRegistry, optionalCreateNamedWindowName, _systemVirtualDwViewFactory);
var patternResolutionService =
new PatternObjectResolutionServiceImpl(_patternObjectClasses);
var schedulingService = engineServices.SchedulingService;
var filterService = engineServices.FilterService;
if (isolationUnitServices != null)
{
filterService = isolationUnitServices.FilterService;
schedulingService = isolationUnitServices.SchedulingService;
}
var scheduleAudit = AuditEnum.SCHEDULE.GetAudit(annotations);
if (scheduleAudit != null)
{
schedulingService = new SchedulingServiceAudit(
engineServices.EngineURI, statementName, schedulingService);
}
StatementAIResourceRegistry statementAgentInstanceRegistry = null;
ContextDescriptor contextDescriptor = null;
var optionalContextName = statementSpecRaw.OptionalContextName;
if (optionalContextName != null)
{
contextDescriptor = engineServices.ContextManagementService.GetContextDescriptor(optionalContextName);
// allocate a per-instance registry of aggregations and prev/prior/subselect
if (contextDescriptor != null)
{
statementAgentInstanceRegistry = contextDescriptor.AiResourceRegistryFactory.Invoke();
}
}
var countSubexpressions = engineServices.ConfigSnapshot.EngineDefaults.PatternsConfig.MaxSubexpressions != null;
PatternSubexpressionPoolStmtSvc patternSubexpressionPoolStmtSvc = null;
if (countSubexpressions)
{
var stmtCounter = new PatternSubexpressionPoolStmtHandler();
patternSubexpressionPoolStmtSvc =
new PatternSubexpressionPoolStmtSvc(engineServices.PatternSubexpressionPoolSvc, stmtCounter);
engineServices.PatternSubexpressionPoolSvc.AddPatternContext(statementName, stmtCounter);
}
var countMatchRecogStates = engineServices.ConfigSnapshot.EngineDefaults.MatchRecognizeConfig.MaxStates != null;
MatchRecognizeStatePoolStmtSvc matchRecognizeStatePoolStmtSvc = null;
if (countMatchRecogStates && statementSpecRaw.MatchRecognizeSpec != null)
{
var stmtCounter = new MatchRecognizeStatePoolStmtHandler();
matchRecognizeStatePoolStmtSvc = new MatchRecognizeStatePoolStmtSvc(engineServices.MatchRecognizeStatePoolEngineSvc, stmtCounter);
engineServices.MatchRecognizeStatePoolEngineSvc.AddPatternContext(statementName, stmtCounter);
}
AgentInstanceScriptContext defaultAgentInstanceScriptContext = null;
if (statementSpecRaw.ScriptExpressions != null && !statementSpecRaw.ScriptExpressions.IsEmpty())
{
defaultAgentInstanceScriptContext = new AgentInstanceScriptContext();
}
// allow a special context controller factory for testing
var contextControllerFactoryService =
GetContextControllerFactoryService(annotations);
// may use resource tracking
var statementResourceService = new StatementResourceService(optionalContextName != null);
StatementExtensionSvcContext extensionSvcContext = new ProxyStatementExtensionSvcContext
{
ProcStmtResources = () => statementResourceService,
ProcExtractStatementResourceHolder = resultOfStart => StatementResourceHolderUtil.PopulateHolder(resultOfStart)
};
// Create statement context
return(new StatementContext(
_stmtEngineServices,
schedulingService,
scheduleBucket,
epStatementHandle,
viewResolutionService,
patternResolutionService,
extensionSvcContext,
new StatementStopServiceImpl(),
patternContextFactory,
filterService,
new StatementResultServiceImpl(
statementName,
engineServices.StatementLifecycleSvc,
engineServices.MetricsReportingService,
engineServices.ThreadingService),
engineServices.InternalEventEngineRouteDest,
annotations,
statementAgentInstanceRegistry,
defaultStatementAgentInstanceLock,
contextDescriptor,
patternSubexpressionPoolStmtSvc,
matchRecognizeStatePoolStmtSvc,
stateless,
contextControllerFactoryService,
defaultAgentInstanceScriptContext,
AggregationServiceFactoryServiceImpl.DEFAULT_FACTORY,
engineServices.ScriptingService,
writesToTables,
statementUserObject,
StatementSemiAnonymousTypeRegistryImpl.INSTANCE,
annotationData.Priority));
}
private static StatementLightweight InitStatement(
bool recovery,
string moduleName,
StatementProvider statementProvider,
string deploymentId,
int statementId,
EventTypeResolver eventTypeResolver,
ModuleIncidentals moduleIncidentals,
StatementNameRuntimeOption statementNameResolverRuntime,
StatementUserObjectRuntimeOption userObjectResolverRuntime,
ClassLoader moduleClassLoader,
EPServicesContext services)
{
var informationals = statementProvider.Informationals;
// set instrumentation unless already provided
if (informationals.InstrumentationProvider == null)
{
informationals.InstrumentationProvider = InstrumentationDefault.INSTANCE;
}
var statementResultService = new StatementResultServiceImpl(informationals, services);
FilterSharedLookupableRegistery filterSharedLookupableRegistery = new ProxyFilterSharedLookupableRegistery()
{
ProcRegisterLookupable = (
eventTypeX,
lookupable) => {
services.FilterSharedLookupableRepository.RegisterLookupable(statementId, eventTypeX, lookupable);
},
};
FilterSharedBoolExprRegistery filterSharedBoolExprRegistery = new ProxyFilterSharedBoolExprRegistery()
{
ProcRegisterBoolExpr = (node) => { services.FilterSharedBoolExprRepository.RegisterBoolExpr(statementId, node); },
};
IDictionary <int, FilterSpecActivatable> filterSpecActivatables = new Dictionary <int, FilterSpecActivatable>();
FilterSpecActivatableRegistry filterSpecActivatableRegistry = new ProxyFilterSpecActivatableRegistry()
{
ProcRegister = (filterSpecActivatable) => { filterSpecActivatables.Put(filterSpecActivatable.FilterCallbackId, filterSpecActivatable); },
};
var contextPartitioned = informationals.OptionalContextName != null;
var statementResourceService = new StatementResourceService(contextPartitioned);
// determine statement name
var statementName = informationals.StatementNameCompileTime;
if (statementNameResolverRuntime != null)
{
string statementNameAssigned = statementNameResolverRuntime.Invoke(
new StatementNameRuntimeContext(
deploymentId,
statementName,
statementId,
(string)informationals.Properties.Get(StatementProperty.EPL),
informationals.Annotations));
if (statementNameAssigned != null)
{
statementName = statementNameAssigned;
}
}
statementName = statementName.Trim();
var epInitServices = new EPStatementInitServicesImpl(
statementName,
informationals.Properties,
informationals.Annotations,
deploymentId,
eventTypeResolver,
filterSpecActivatableRegistry,
filterSharedBoolExprRegistery,
filterSharedLookupableRegistery,
moduleIncidentals,
recovery,
statementResourceService,
statementResultService,
services);
if (!services.EpServicesHA.RuntimeExtensionServices.IsHAEnabled)
{
statementProvider.Initialize(epInitServices);
}
else
{
// for HA we set the context classloader as state may be loaded considering the module provider's classloader
// - NEsper doesn't support HA like this, and we wouldn't want to deliver this information in
// - this manner. An alternative delivery mechanism must be established to carry the information
// - without relying on the "current" thread to carry that detail.
// ClassLoader originalClassLoader = Thread.CurrentThread().ContextClassLoader;
// try {
// Thread.CurrentThread().ContextClassLoader = moduleClassLoader;
// statementProvider.Initialize(epInitServices);
// }
// finally {
// Thread.CurrentThread().ContextClassLoader = originalClassLoader;
// }
}
var multiMatchHandler = services.MultiMatchHandlerFactory.Make(informationals.HasSubquery, informationals.IsNeedDedup);
var stmtMetric = services.MetricReportingService.GetStatementHandle(statementId, deploymentId, statementName);
var optionalEPL = (string)informationals.Properties.Get(StatementProperty.EPL);
InsertIntoLatchFactory insertIntoFrontLatchFactory = null;
InsertIntoLatchFactory insertIntoBackLatchFactory = null;
if (informationals.InsertIntoLatchName != null)
{
var latchFactoryNameBack = "insert_stream_B_" + informationals.InsertIntoLatchName + "_" + statementName;
var latchFactoryNameFront = "insert_stream_F_" + informationals.InsertIntoLatchName + "_" + statementName;
var msecTimeout = services.RuntimeSettingsService.ConfigurationRuntime.Threading.InsertIntoDispatchTimeout;
var locking = services.RuntimeSettingsService.ConfigurationRuntime.Threading.InsertIntoDispatchLocking;
var latchFactoryFront = new InsertIntoLatchFactory(
latchFactoryNameFront,
informationals.IsStateless,
msecTimeout,
locking,
services.TimeSourceService);
var latchFactoryBack = new InsertIntoLatchFactory(
latchFactoryNameBack,
informationals.IsStateless,
msecTimeout,
locking,
services.TimeSourceService);
insertIntoFrontLatchFactory = latchFactoryFront;
insertIntoBackLatchFactory = latchFactoryBack;
}
var statementHandle = new EPStatementHandle(
statementName,
deploymentId,
statementId,
optionalEPL,
informationals.Priority,
informationals.IsPreemptive,
informationals.IsCanSelfJoin,
multiMatchHandler,
informationals.HasVariables,
informationals.HasTableAccess,
stmtMetric,
insertIntoFrontLatchFactory,
insertIntoBackLatchFactory);
// determine context
StatementAIResourceRegistry statementAgentInstanceRegistry = null;
ContextRuntimeDescriptor contextRuntimeDescriptor = null;
var optionalContextName = informationals.OptionalContextName;
if (optionalContextName != null)
{
var contextDeploymentId = ContextDeployTimeResolver.ResolveContextDeploymentId(
informationals.OptionalContextModuleName,
informationals.OptionalContextVisibility,
optionalContextName,
deploymentId,
services.ContextPathRegistry);
var contextManager = services.ContextManagementService.GetContextManager(contextDeploymentId, optionalContextName);
contextRuntimeDescriptor = contextManager.ContextRuntimeDescriptor;
var registryRequirements = statementProvider.StatementAIFactoryProvider.Factory.RegistryRequirements;
statementAgentInstanceRegistry = contextManager.AllocateAgentInstanceResourceRegistry(registryRequirements);
}
var statementCPCacheService = new StatementCPCacheService(
contextPartitioned,
statementResourceService,
statementAgentInstanceRegistry);
var eventType = statementProvider.StatementAIFactoryProvider.Factory.StatementEventType;
var configurationThreading = services.RuntimeSettingsService.ConfigurationRuntime.Threading;
var preserveDispatchOrder = configurationThreading.IsListenerDispatchPreserveOrder && !informationals.IsStateless;
var isSpinLocks = configurationThreading.ListenerDispatchLocking == Locking.SPIN;
var msecBlockingTimeout = configurationThreading.ListenerDispatchTimeout;
UpdateDispatchViewBase dispatchChildView;
if (preserveDispatchOrder)
{
if (isSpinLocks)
{
dispatchChildView = new UpdateDispatchViewBlockingSpin(
eventType,
statementResultService,
services.DispatchService,
msecBlockingTimeout,
services.TimeSourceService);
}
else
{
dispatchChildView = new UpdateDispatchViewBlockingWait(eventType, statementResultService, services.DispatchService, msecBlockingTimeout);
}
}
else
{
dispatchChildView = new UpdateDispatchViewNonBlocking(eventType, statementResultService, services.DispatchService);
}
var countSubexpressions = services.ConfigSnapshot.Runtime.Patterns.MaxSubexpressions != null;
PatternSubexpressionPoolStmtSvc patternSubexpressionPoolStmtSvc = null;
if (countSubexpressions)
{
var stmtCounter = new PatternSubexpressionPoolStmtHandler();
patternSubexpressionPoolStmtSvc = new PatternSubexpressionPoolStmtSvc(services.PatternSubexpressionPoolRuntimeSvc, stmtCounter);
services.PatternSubexpressionPoolRuntimeSvc.AddPatternContext(statementId, statementName, stmtCounter);
}
var countMatchRecogStates = services.ConfigSnapshot.Runtime.MatchRecognize.MaxStates != null;
RowRecogStatePoolStmtSvc rowRecogStatePoolStmtSvc = null;
if (countMatchRecogStates && informationals.HasMatchRecognize)
{
var stmtCounter = new RowRecogStatePoolStmtHandler();
rowRecogStatePoolStmtSvc = new RowRecogStatePoolStmtSvc(services.RowRecogStatePoolEngineSvc, stmtCounter);
services.RowRecogStatePoolEngineSvc.AddPatternContext(new DeploymentIdNamePair(deploymentId, statementName), stmtCounter);
}
// get user object for runtime
object userObjectRuntime = null;
if (userObjectResolverRuntime != null)
{
userObjectRuntime = userObjectResolverRuntime.GetUserObject(
new StatementUserObjectRuntimeContext(
deploymentId,
statementName,
statementId,
(string)informationals.Properties.Get(StatementProperty.EPL),
informationals.Annotations));
}
var statementContext = new StatementContext(
services.Container,
contextRuntimeDescriptor,
deploymentId,
statementId,
statementName,
moduleName,
informationals,
userObjectRuntime,
services.StatementContextRuntimeServices,
statementHandle,
filterSpecActivatables,
patternSubexpressionPoolStmtSvc,
rowRecogStatePoolStmtSvc,
new ScheduleBucket(statementId),
statementAgentInstanceRegistry,
statementCPCacheService,
statementProvider.StatementAIFactoryProvider,
statementResultService,
dispatchChildView,
services.FilterService,
services.SchedulingService,
services.InternalEventRouteDest
);
foreach (var readyCallback in epInitServices.ReadyCallbacks)
{
readyCallback.Ready(statementContext, moduleIncidentals, recovery);
}
return(new StatementLightweight(statementProvider, informationals, statementResultService, statementContext));
}
public PatternSubexpressionPoolStmtSvc(PatternSubexpressionPoolEngineSvc engineSvc, PatternSubexpressionPoolStmtHandler stmtHandler)
{
EngineSvc = engineSvc;
StmtHandler = stmtHandler;
}
