private static EPStatementSPI MakeStatement(
UpdateDispatchView dispatchChildView,
StatementContext statementContext,
StatementResultServiceImpl statementResultService,
EPRuntimeSPI epRuntime)
{
var epStatement =
epRuntime.ServicesContext.EpStatementFactory.Statement(new EPStatementFactoryArgs(statementContext, dispatchChildView, statementResultService));
var info = statementContext.StatementInformationals;
statementResultService.SetSelectClause(info.SelectClauseTypes, info.SelectClauseColumnNames, info.IsForClauseDelivery, info.GroupDeliveryEval);
statementResultService.SetContext(epStatement, epRuntime);
return(epStatement);
}
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));
}