public StmtForgeMethodResult Make(
string @namespace,
string classPostfix,
StatementCompileTimeServices services)
{
// determine context
var contextName = @base.StatementSpec.Raw.OptionalContextName;
IList<FilterSpecCompiled> filterSpecCompileds = new List<FilterSpecCompiled>();
IList<ScheduleHandleCallbackProvider> schedules = new List<ScheduleHandleCallbackProvider>();
IList<NamedWindowConsumerStreamSpec> namedWindowConsumers = new List<NamedWindowConsumerStreamSpec>();
IList<StmtClassForgeableFactory> additionalForgeables = new List<StmtClassForgeableFactory>();
// create subselect information
var subSelectActivationDesc = SubSelectHelperActivations.CreateSubSelectActivation(
filterSpecCompileds, namedWindowConsumers, @base, services);
IDictionary<ExprSubselectNode, SubSelectActivationPlan> subselectActivation = subSelectActivationDesc.Subselects;
additionalForgeables.AddAll(subSelectActivationDesc.AdditionalForgeables);
// obtain activator
var streamSpec = @base.StatementSpec.StreamSpecs[0];
StreamSelector? optionalStreamSelector = null;
OnTriggerActivatorDesc activatorResult;
if (streamSpec is FilterStreamSpecCompiled) {
var filterStreamSpec = (FilterStreamSpecCompiled) streamSpec;
activatorResult = ActivatorFilter(filterStreamSpec, services);
filterSpecCompileds.Add(filterStreamSpec.FilterSpecCompiled);
}
else if (streamSpec is PatternStreamSpecCompiled) {
var patternStreamSpec = (PatternStreamSpecCompiled) streamSpec;
var forges = patternStreamSpec.Root.CollectFactories();
foreach (var forge in forges) {
forge.CollectSelfFilterAndSchedule(filterSpecCompileds, schedules);
}
activatorResult = ActivatorPattern(patternStreamSpec, services);
}
else if (streamSpec is NamedWindowConsumerStreamSpec) {
var namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
activatorResult = ActivatorNamedWindow(namedSpec, services);
namedWindowConsumers.Add(namedSpec);
}
else if (streamSpec is TableQueryStreamSpec) {
throw new ExprValidationException("Tables cannot be used in an on-action statement triggering stream");
}
else {
throw new ExprValidationException("Unknown stream specification type: " + streamSpec);
}
var statementFieldsClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementFields), classPostfix);
var namespaceScope = new CodegenNamespaceScope(
@namespace,
statementFieldsClassName,
services.IsInstrumented);
var aiFactoryProviderClassName = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(StatementAIFactoryProvider),
classPostfix);
// context-factory creation
//
// handle on-merge for table
var onTriggerDesc = @base.StatementSpec.Raw.OnTriggerDesc;
OnTriggerPlan onTriggerPlan;
if (onTriggerDesc is OnTriggerWindowDesc) {
var desc = (OnTriggerWindowDesc) onTriggerDesc;
var namedWindow = services.NamedWindowCompileTimeResolver.Resolve(desc.WindowName);
TableMetaData table = null;
if (namedWindow == null) {
table = services.TableCompileTimeResolver.Resolve(desc.WindowName);
if (table == null) {
throw new ExprValidationException(
"A named window or table '" + desc.WindowName + "' has not been declared");
}
}
var planDesc = new OnTriggerWindowPlan(
desc,
contextName,
activatorResult,
optionalStreamSelector,
subselectActivation,
streamSpec);
onTriggerPlan = OnTriggerWindowUtil.HandleContextFactoryOnTrigger(
aiFactoryProviderClassName,
namespaceScope,
classPostfix,
namedWindow,
table,
planDesc,
@base,
services);
}
else if (onTriggerDesc is OnTriggerSetDesc) {
// variable assignments
var desc = (OnTriggerSetDesc) onTriggerDesc;
var plan = OnTriggerSetUtil.HandleSetVariable(
aiFactoryProviderClassName,
namespaceScope,
classPostfix,
activatorResult,
streamSpec.OptionalStreamName,
subselectActivation,
desc,
@base,
services);
onTriggerPlan = new OnTriggerPlan(
plan.Forgeable,
plan.Forgeables,
plan.SelectSubscriberDescriptor,
plan.AdditionalForgeables);
}
else {
// split-stream use case
var desc = (OnTriggerSplitStreamDesc) onTriggerDesc;
onTriggerPlan = OnSplitStreamUtil.HandleSplitStream(
aiFactoryProviderClassName,
namespaceScope,
classPostfix,
desc,
streamSpec,
activatorResult,
subselectActivation,
@base,
services);
}
additionalForgeables.AddAll(onTriggerPlan.AdditionalForgeables);
// build forge list
IList<StmtClassForgeable> forgeables = new List<StmtClassForgeable>();
foreach (StmtClassForgeableFactory additional in additionalForgeables) {
forgeables.Add(additional.Make(namespaceScope, classPostfix));
}
forgeables.AddAll(onTriggerPlan.Forgeables);
forgeables.Add(onTriggerPlan.Factory);
var statementProviderClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementProvider), classPostfix);
var informationals = StatementInformationalsUtil.GetInformationals(
@base,
filterSpecCompileds,
schedules,
namedWindowConsumers,
true,
onTriggerPlan.SubscriberDescriptor,
namespaceScope,
services);
forgeables.Add(
new StmtClassForgeableStmtProvider(
aiFactoryProviderClassName,
statementProviderClassName,
informationals,
namespaceScope));
forgeables.Add(
new StmtClassForgeableStmtFields(
statementFieldsClassName,
namespaceScope,
2));
return new StmtForgeMethodResult(
forgeables,
filterSpecCompileds,
schedules,
namedWindowConsumers,
FilterSpecCompiled.MakeExprNodeList(
filterSpecCompileds,
EmptyList<FilterSpecParamExprNodeForge>.Instance));
}
public StmtForgeMethodResult Make(
string @namespace,
string classPostfix,
StatementCompileTimeServices services)
{
var statementSpec = @base.StatementSpec;
if (statementSpec.Raw.OptionalContextName != null) {
throw new ExprValidationException(
"A create-context statement cannot itself be associated to a context, please declare a nested context instead");
}
IList<FilterSpecCompiled> filterSpecCompileds = new List<FilterSpecCompiled>();
IList<ScheduleHandleCallbackProvider> scheduleHandleCallbackProviders =
new List<ScheduleHandleCallbackProvider>();
IList<FilterSpecParamExprNodeForge> filterBooleanExpressions = new List<FilterSpecParamExprNodeForge>();
var context = statementSpec.Raw.CreateContextDesc;
if (services.ContextCompileTimeResolver.GetContextInfo(context.ContextName) != null) {
throw new ExprValidationException("Context by name '" + context.ContextName + "' already exists");
}
// compile filter specs, if any
var validationEnv = new CreateContextValidationEnv(
context.ContextName,
@base.StatementRawInfo,
services,
filterSpecCompileds,
scheduleHandleCallbackProviders,
filterBooleanExpressions);
var additionalForgeables = ValidateContextDetail(
context.ContextDetail,
0,
validationEnv);
// get controller factory forges
var controllerFactoryForges = GetForges(
context.ContextName,
context.ContextDetail);
// build context properties type information
var contextProps = MakeContextProperties(
controllerFactoryForges,
@base.StatementRawInfo,
services);
// allocate type for context properties
var contextEventTypeName =
services.EventTypeNameGeneratorStatement.GetContextPropertyTypeName(context.ContextName);
var metadata = new EventTypeMetadata(
contextEventTypeName,
@base.ModuleName,
EventTypeTypeClass.CONTEXTPROPDERIVED,
EventTypeApplicationType.MAP,
NameAccessModifier.TRANSIENT,
EventTypeBusModifier.NONBUS,
false,
EventTypeIdPair.Unassigned());
var contextPropertiesType = BaseNestableEventUtil.MakeMapTypeCompileTime(
metadata,
contextProps,
null,
null,
null,
null,
services.BeanEventTypeFactoryPrivate,
services.EventTypeCompileTimeResolver);
services.EventTypeCompileTimeRegistry.NewType(contextPropertiesType);
// register context
var visibilityContext =
services.ModuleVisibilityRules.GetAccessModifierContext(@base, context.ContextName);
var validationInfo =
new ContextControllerPortableInfo[controllerFactoryForges.Length];
for (var i = 0; i < validationInfo.Length; i++) {
validationInfo[i] = controllerFactoryForges[i].ValidationInfo;
}
var detail = new ContextMetaData(
context.ContextName,
@base.ModuleName,
visibilityContext,
contextPropertiesType,
validationInfo);
services.ContextCompileTimeRegistry.NewContext(detail);
// define output event type
var statementEventTypeName =
services.EventTypeNameGeneratorStatement.GetContextStatementTypeName(context.ContextName);
var statementTypeMetadata = new EventTypeMetadata(
statementEventTypeName,
@base.ModuleName,
EventTypeTypeClass.STATEMENTOUT,
EventTypeApplicationType.MAP,
NameAccessModifier.TRANSIENT,
EventTypeBusModifier.NONBUS,
false,
EventTypeIdPair.Unassigned());
EventType statementEventType = BaseNestableEventUtil.MakeMapTypeCompileTime(
statementTypeMetadata,
EmptyDictionary<string, object>.Instance,
null,
null,
null,
null,
services.BeanEventTypeFactoryPrivate,
services.EventTypeCompileTimeResolver);
services.EventTypeCompileTimeRegistry.NewType(statementEventType);
var statementFieldsClassName = CodeGenerationIDGenerator
.GenerateClassNameSimple(typeof(StatementFields), classPostfix);
var namespaceScope = new CodegenNamespaceScope(
@namespace,
statementFieldsClassName,
services.IsInstrumented);
var forgeables = new List<StmtClassForgeable>();
foreach (var additional in additionalForgeables) {
forgeables.Add(additional.Make(namespaceScope, classPostfix));
}
var statementProviderClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementProvider), classPostfix);
var statementAIFactoryProviderClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementAIFactoryProvider), classPostfix);
var forge =
new StatementAgentInstanceFactoryCreateContextForge(context.ContextName, statementEventType);
forgeables.Add(
new StmtClassForgeableAIFactoryProviderCreateContext(
statementAIFactoryProviderClassName,
namespaceScope,
context.ContextName,
controllerFactoryForges,
contextPropertiesType,
forge));
var selectSubscriberDescriptor = new SelectSubscriberDescriptor();
var informationals = StatementInformationalsUtil.GetInformationals(
@base,
filterSpecCompileds,
scheduleHandleCallbackProviders,
EmptyList<NamedWindowConsumerStreamSpec>.Instance,
false,
selectSubscriberDescriptor,
namespaceScope,
services);
informationals.Properties.Put(StatementProperty.CREATEOBJECTNAME, context.ContextName);
forgeables.Add(
new StmtClassForgeableStmtProvider(
statementAIFactoryProviderClassName,
statementProviderClassName,
informationals,
namespaceScope));
forgeables.Add(
new StmtClassForgeableStmtFields(
statementFieldsClassName,
namespaceScope,
0));
return new StmtForgeMethodResult(
forgeables,
filterSpecCompileds,
scheduleHandleCallbackProviders,
EmptyList<NamedWindowConsumerStreamSpec>.Instance,
FilterSpecCompiled.MakeExprNodeList(filterSpecCompileds, filterBooleanExpressions));
}
public static StmtForgeMethodSelectResult Make(
IContainer container,
bool dataflowOperator,
string @namespace,
string classPostfix,
StatementBaseInfo @base,
StatementCompileTimeServices services)
{
var filterSpecCompileds = new List<FilterSpecCompiled>();
var scheduleHandleCallbackProviders = new List<ScheduleHandleCallbackProvider>();
var namedWindowConsumers = new List<NamedWindowConsumerStreamSpec>();
var statementSpec = @base.StatementSpec;
var additionalForgeables = new List<StmtClassForgeableFactory>();
var streamNames = StatementForgeMethodSelectUtil.DetermineStreamNames(statementSpec.StreamSpecs);
var numStreams = streamNames.Length;
if (numStreams == 0) {
throw new ExprValidationException("The from-clause is required but has not been specified");
}
// first we create streams for subselects, if there are any
SubSelectActivationDesc subSelectActivationDesc = SubSelectHelperActivations.CreateSubSelectActivation(
filterSpecCompileds, namedWindowConsumers, @base, services);
IDictionary<ExprSubselectNode, SubSelectActivationPlan> subselectActivation = subSelectActivationDesc.Subselects;
additionalForgeables.AddAll(subSelectActivationDesc.AdditionalForgeables);
// verify for joins that required views are present
StreamJoinAnalysisResultCompileTime joinAnalysisResult = StatementForgeMethodSelectUtil.VerifyJoinViews(statementSpec);
var streamEventTypes = new EventType[statementSpec.StreamSpecs.Length];
var eventTypeNames = new string[numStreams];
var isNamedWindow = new bool[numStreams];
var viewableActivatorForges = new ViewableActivatorForge[numStreams];
var viewForges = new IList<ViewFactoryForge>[numStreams];
var historicalEventViewables = new HistoricalEventViewableForge[numStreams];
for (var stream = 0; stream < numStreams; stream++) {
var streamSpec = statementSpec.StreamSpecs[stream];
var isCanIterateUnbound = streamSpec.ViewSpecs.Length == 0 &&
(services.Configuration.Compiler.ViewResources.IsIterableUnbound ||
AnnotationUtil.HasAnnotation(statementSpec.Annotations, typeof(IterableUnboundAttribute)));
var args = new ViewFactoryForgeArgs(
stream,
false,
-1,
streamSpec.Options,
null,
@base.StatementRawInfo,
services);
if (dataflowOperator) {
var dfResult = HandleDataflowActivation(args, streamSpec);
streamEventTypes[stream] = dfResult.StreamEventType;
eventTypeNames[stream] = dfResult.EventTypeName;
viewableActivatorForges[stream] = dfResult.ViewableActivatorForge;
viewForges[stream] = dfResult.ViewForges;
additionalForgeables.AddAll(dfResult.AdditionalForgeables);
}
else if (streamSpec is FilterStreamSpecCompiled) {
var filterStreamSpec = (FilterStreamSpecCompiled) statementSpec.StreamSpecs[stream];
var filterSpecCompiled = filterStreamSpec.FilterSpecCompiled;
streamEventTypes[stream] = filterSpecCompiled.ResultEventType;
eventTypeNames[stream] = filterStreamSpec.FilterSpecCompiled.FilterForEventTypeName;
viewableActivatorForges[stream] = new ViewableActivatorFilterForge(
filterSpecCompiled,
isCanIterateUnbound,
stream,
false,
-1);
ViewFactoryForgeDesc viewForgeDesc = ViewFactoryForgeUtil.CreateForges(streamSpec.ViewSpecs, args, streamEventTypes[stream]);
viewForges[stream] = viewForgeDesc.Forges;
additionalForgeables.AddAll(viewForgeDesc.MultikeyForges);
filterSpecCompileds.Add(filterSpecCompiled);
}
else if (streamSpec is PatternStreamSpecCompiled) {
var patternStreamSpec = (PatternStreamSpecCompiled) streamSpec;
var forges = patternStreamSpec.Root.CollectFactories();
foreach (var forgeNode in forges) {
forgeNode.CollectSelfFilterAndSchedule(filterSpecCompileds, scheduleHandleCallbackProviders);
}
var patternType = ViewableActivatorPatternForge.MakeRegisterPatternType(
@base,
stream,
patternStreamSpec,
services);
var patternContext = new PatternContext(0, patternStreamSpec.MatchedEventMapMeta, false, -1, false);
viewableActivatorForges[stream] = new ViewableActivatorPatternForge(
patternType,
patternStreamSpec,
patternContext,
isCanIterateUnbound);
streamEventTypes[stream] = patternType;
ViewFactoryForgeDesc viewForgeDesc = ViewFactoryForgeUtil.CreateForges(streamSpec.ViewSpecs, args, patternType);
viewForges[stream] = viewForgeDesc.Forges;
additionalForgeables.AddAll(viewForgeDesc.MultikeyForges);
}
else if (streamSpec is NamedWindowConsumerStreamSpec) {
var namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
var namedWindow =
services.NamedWindowCompileTimeResolver.Resolve(namedSpec.NamedWindow.EventType.Name);
var namedWindowType = namedWindow.EventType;
if (namedSpec.OptPropertyEvaluator != null) {
namedWindowType = namedSpec.OptPropertyEvaluator.FragmentEventType;
}
var typesFilterValidation = new StreamTypeServiceImpl(
namedWindowType,
namedSpec.OptionalStreamName,
false);
var filterSingle =
ExprNodeUtilityMake.ConnectExpressionsByLogicalAndWhenNeeded(namedSpec.FilterExpressions);
var filterQueryGraph = EPLValidationUtil.ValidateFilterGetQueryGraphSafe(
filterSingle,
typesFilterValidation,
@base.StatementRawInfo,
services);
namedWindowConsumers.Add(namedSpec);
viewableActivatorForges[stream] = new ViewableActivatorNamedWindowForge(
namedSpec,
namedWindow,
filterSingle,
filterQueryGraph,
true,
namedSpec.OptPropertyEvaluator);
streamEventTypes[stream] = namedWindowType;
viewForges[stream] = Collections.GetEmptyList<ViewFactoryForge>();
joinAnalysisResult.SetNamedWindowsPerStream(stream, namedWindow);
eventTypeNames[stream] = namedSpec.NamedWindow.EventType.Name;
isNamedWindow[stream] = true;
// Consumers to named windows cannot declare a data window view onto the named window to avoid duplicate remove streams
ViewFactoryForgeDesc viewForgeDesc = ViewFactoryForgeUtil.CreateForges(streamSpec.ViewSpecs, args, namedWindowType);
viewForges[stream] = viewForgeDesc.Forges;
additionalForgeables.AddAll(viewForgeDesc.MultikeyForges);
EPStatementStartMethodHelperValidate.ValidateNoDataWindowOnNamedWindow(viewForges[stream]);
}
else if (streamSpec is TableQueryStreamSpec) {
ValidateNoViews(streamSpec, "Table data");
var tableStreamSpec = (TableQueryStreamSpec) streamSpec;
if (numStreams > 1 && tableStreamSpec.FilterExpressions.Count > 0) {
throw new ExprValidationException(
"Joins with tables do not allow table filter expressions, please add table filters to the where-clause instead");
}
var table = tableStreamSpec.Table;
EPLValidationUtil.ValidateContextName(
true,
table.TableName,
table.OptionalContextName,
statementSpec.Raw.OptionalContextName,
false);
var filter =
ExprNodeUtilityMake.ConnectExpressionsByLogicalAndWhenNeeded(tableStreamSpec.FilterExpressions);
viewableActivatorForges[stream] = new ViewableActivatorTableForge(table, filter);
viewForges[stream] = Collections.GetEmptyList<ViewFactoryForge>();
eventTypeNames[stream] = tableStreamSpec.Table.TableName;
streamEventTypes[stream] = tableStreamSpec.Table.InternalEventType;
joinAnalysisResult.SetTablesForStream(stream, table);
if (tableStreamSpec.Options.IsUnidirectional) {
throw new ExprValidationException("Tables cannot be marked as unidirectional");
}
if (tableStreamSpec.Options.IsRetainIntersection || tableStreamSpec.Options.IsRetainUnion) {
throw new ExprValidationException("Tables cannot be marked with retain");
}
}
else if (streamSpec is DBStatementStreamSpec) {
ValidateNoViews(streamSpec, "Historical data");
var sqlStreamSpec = (DBStatementStreamSpec) streamSpec;
var typeConversionHook = (SQLColumnTypeConversion) ImportUtil.GetAnnotationHook(
statementSpec.Annotations,
HookType.SQLCOL,
typeof(SQLColumnTypeConversion),
services.ImportServiceCompileTime);
var outputRowConversionHook = (SQLOutputRowConversion) ImportUtil.GetAnnotationHook(
statementSpec.Annotations,
HookType.SQLROW,
typeof(SQLOutputRowConversion),
services.ImportServiceCompileTime);
var viewable = HistoricalEventViewableDatabaseForgeFactory.CreateDBStatementView(
stream,
sqlStreamSpec,
typeConversionHook,
outputRowConversionHook,
@base,
services,
statementSpec.Annotations);
streamEventTypes[stream] = viewable.EventType;
viewForges[stream] = Collections.GetEmptyList<ViewFactoryForge>();
viewableActivatorForges[stream] = new ViewableActivatorHistoricalForge(viewable);
historicalEventViewables[stream] = viewable;
}
else if (streamSpec is MethodStreamSpec) {
ValidateNoViews(streamSpec, "Method data");
var methodStreamSpec = (MethodStreamSpec) streamSpec;
var viewable = HistoricalEventViewableMethodForgeFactory.CreateMethodStatementView(
stream,
methodStreamSpec,
@base,
services);
historicalEventViewables[stream] = viewable;
streamEventTypes[stream] = viewable.EventType;
viewForges[stream] = Collections.GetEmptyList<ViewFactoryForge>();
viewableActivatorForges[stream] = new ViewableActivatorHistoricalForge(viewable);
historicalEventViewables[stream] = viewable;
}
else {
throw new IllegalStateException("Unrecognized stream " + streamSpec);
}
// plan serde for iterate-unbound
if (isCanIterateUnbound) {
var serdeForgeables = SerdeEventTypeUtility.Plan(
streamEventTypes[stream], @base.StatementRawInfo, services.SerdeEventTypeRegistry, services.SerdeResolver);
additionalForgeables.AddAll(serdeForgeables);
}
}
// handle match-recognize pattern
if (statementSpec.Raw.MatchRecognizeSpec != null) {
if (numStreams > 1) {
throw new ExprValidationException("Joins are not allowed when using match-recognize");
}
if (joinAnalysisResult.TablesPerStream[0] != null) {
throw new ExprValidationException("Tables cannot be used with match-recognize");
}
var isUnbound = viewForges[0].IsEmpty() &&
!(statementSpec.StreamSpecs[0] is NamedWindowConsumerStreamSpec);
var eventType = viewForges[0].IsEmpty()
? streamEventTypes[0]
: viewForges[0][(viewForges[0].Count - 1)].EventType;
var plan = RowRecogNFAViewPlanUtil.ValidateAndPlan(services.Container, eventType, isUnbound, @base, services);
var forge = new RowRecogNFAViewFactoryForge(plan.Forge);
additionalForgeables.AddAll(plan.AdditionalForgeables);
scheduleHandleCallbackProviders.Add(forge);
viewForges[0].Add(forge);
var serdeForgeables = SerdeEventTypeUtility.Plan(
eventType, @base.StatementRawInfo, services.SerdeEventTypeRegistry, services.SerdeResolver);
additionalForgeables.AddAll(serdeForgeables);
}
// Obtain event types from view factory chains
for (var i = 0; i < viewForges.Length; i++) {
streamEventTypes[i] = viewForges[i].IsEmpty()
? streamEventTypes[i]
: viewForges[i][(viewForges[i].Count - 1)].EventType;
}
// add unique-information to join analysis
joinAnalysisResult.AddUniquenessInfo(viewForges, statementSpec.Annotations);
// plan sub-selects
SubSelectHelperForgePlan subselectForgePlan = SubSelectHelperForgePlanner.PlanSubSelect(
@base, subselectActivation, streamNames, streamEventTypes, eventTypeNames, services);
var subselectForges = subselectForgePlan.Subselects;
additionalForgeables.AddAll(subselectForgePlan.AdditionalForgeables);
DetermineViewSchedules(subselectForges, scheduleHandleCallbackProviders);
// determine view schedules
var viewResourceDelegateExpr = new ViewResourceDelegateExpr();
ViewFactoryForgeUtil.DetermineViewSchedules(viewForges, scheduleHandleCallbackProviders);
var hasIStreamOnly = StatementForgeMethodSelectUtil.GetHasIStreamOnly(isNamedWindow, viewForges);
var optionalStreamsIfAny = OuterJoinAnalyzer.OptionalStreamsIfAny(statementSpec.Raw.OuterJoinDescList);
StreamTypeService typeService = new StreamTypeServiceImpl(
streamEventTypes,
streamNames,
hasIStreamOnly,
false,
optionalStreamsIfAny);
// Validate views that require validation, specifically streams that don't have
// sub-views such as DB SQL joins
var historicalViewableDesc = new HistoricalViewableDesc(numStreams);
for (var stream = 0; stream < historicalEventViewables.Length; stream++) {
var historicalEventViewable = historicalEventViewables[stream];
if (historicalEventViewable == null) {
continue;
}
scheduleHandleCallbackProviders.Add(historicalEventViewable);
IList<StmtClassForgeableFactory> forgeables = historicalEventViewable.Validate(typeService, @base, services);
additionalForgeables.AddAll(forgeables);
historicalViewableDesc.SetHistorical(stream, historicalEventViewable.RequiredStreams);
if (historicalEventViewable.RequiredStreams.Contains(stream)) {
throw new ExprValidationException(
"Parameters for historical stream " +
stream +
" indicate that the stream is subordinate to itself as stream parameters originate in the same stream");
}
}
// Validate where-clause filter tree, outer join clause and output limit expression
var whereClauseValidated = EPStatementStartMethodHelperValidate.ValidateNodes(
statementSpec.Raw,
typeService,
viewResourceDelegateExpr,
@base.StatementRawInfo,
services);
var whereClauseForge = whereClauseValidated?.Forge;
// Obtain result set processor
var resultSetProcessorDesc = ResultSetProcessorFactoryFactory.GetProcessorPrototype(
new ResultSetSpec(statementSpec),
typeService,
viewResourceDelegateExpr,
joinAnalysisResult.UnidirectionalInd,
true,
@base.ContextPropertyRegistry,
false,
false,
@base.StatementRawInfo,
services);
additionalForgeables.AddAll(resultSetProcessorDesc.AdditionalForgeables);
// Handle 'prior' function nodes in terms of view requirements
var viewResourceDelegateDesc =
ViewResourceVerifyHelper.VerifyPreviousAndPriorRequirements(viewForges, viewResourceDelegateExpr);
var hasPrior = ViewResourceDelegateDesc.HasPrior(viewResourceDelegateDesc);
if (hasPrior) {
for (var stream = 0; stream < numStreams; stream++) {
if (!viewResourceDelegateDesc[stream].PriorRequests.IsEmpty()) {
viewForges[stream].Add(new PriorEventViewForge(viewForges[stream].IsEmpty(), streamEventTypes[stream]));
var serdeForgeables = SerdeEventTypeUtility.Plan(
streamEventTypes[stream], @base.StatementRawInfo, services.SerdeEventTypeRegistry, services.SerdeResolver);
additionalForgeables.AddAll(serdeForgeables);
}
}
}
var outputProcessDesc = OutputProcessViewForgeFactory.Make(
typeService.EventTypes,
resultSetProcessorDesc.ResultEventType,
resultSetProcessorDesc.ResultSetProcessorType,
statementSpec,
@base.StatementRawInfo,
services);
var outputProcessViewFactoryForge = outputProcessDesc.Forge;
additionalForgeables.AddAll(outputProcessDesc.AdditionalForgeables);
outputProcessViewFactoryForge.CollectSchedules(scheduleHandleCallbackProviders);
JoinSetComposerPrototypeForge joinForge = null;
if (numStreams > 1) {
var hasAggregations = !resultSetProcessorDesc.AggregationServiceForgeDesc.Expressions.IsEmpty();
var desc = JoinSetComposerPrototypeForgeFactory.MakeComposerPrototype(
statementSpec,
joinAnalysisResult,
typeService,
historicalViewableDesc,
false,
hasAggregations,
@base.StatementRawInfo,
services);
joinForge = desc.Forge;
additionalForgeables.AddAll(desc.AdditionalForgeables);
HandleIndexDependencies(joinForge.OptionalQueryPlan, services);
}
// plan table access
var tableAccessForges =
ExprTableEvalHelperPlan.PlanTableAccess(@base.StatementSpec.TableAccessNodes);
ValidateTableAccessUse(statementSpec.Raw.IntoTableSpec, statementSpec.Raw.TableExpressions);
if (joinAnalysisResult.IsUnidirectional && statementSpec.Raw.IntoTableSpec != null) {
throw new ExprValidationException("Into-table does not allow unidirectional joins");
}
var orderByWithoutOutputLimit = statementSpec.Raw.OrderByList != null &&
!statementSpec.Raw.OrderByList.IsEmpty() &&
statementSpec.Raw.OutputLimitSpec == null;
var statementAIFactoryProviderClassName = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(StatementAIFactoryProvider),
classPostfix);
var resultSetProcessorProviderClassName = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(ResultSetProcessorFactoryProvider),
classPostfix);
var outputProcessViewProviderClassName = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(OutputProcessViewFactoryProvider),
classPostfix);
var statementProviderClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementProvider), classPostfix);
var statementFieldsClassName =
CodeGenerationIDGenerator.GenerateClassNameSimple(typeof(StatementFields), classPostfix);
//var statementFieldsClassName = namespaceScope.FieldsClassNameOptional;
var forgeX = new StatementAgentInstanceFactorySelectForge(
typeService.StreamNames,
viewableActivatorForges,
resultSetProcessorProviderClassName,
viewForges,
viewResourceDelegateDesc,
whereClauseForge,
joinForge,
outputProcessViewProviderClassName,
subselectForges,
tableAccessForges,
orderByWithoutOutputLimit,
joinAnalysisResult.IsUnidirectional);
var namespaceScope = new CodegenNamespaceScope(
@namespace,
statementFieldsClassName,
services.IsInstrumented);
var forgeablesX = additionalForgeables
.Select(additional => additional.Make(namespaceScope, classPostfix))
.ToList();
forgeablesX.Add(
new StmtClassForgeableRSPFactoryProvider(
resultSetProcessorProviderClassName,
resultSetProcessorDesc,
namespaceScope,
@base.StatementRawInfo));
forgeablesX.Add(
new StmtClassForgeableOPVFactoryProvider(
outputProcessViewProviderClassName,
outputProcessViewFactoryForge,
namespaceScope,
numStreams,
@base.StatementRawInfo));
forgeablesX.Add(
new StmtClassForgeableAIFactoryProviderSelect(statementAIFactoryProviderClassName, namespaceScope, forgeX));
forgeablesX.Add(
new StmtClassForgeableStmtFields(statementFieldsClassName, namespaceScope, numStreams));
if (!dataflowOperator) {
var informationals = StatementInformationalsUtil.GetInformationals(
@base,
filterSpecCompileds,
scheduleHandleCallbackProviders,
namedWindowConsumers,
true,
resultSetProcessorDesc.SelectSubscriberDescriptor,
namespaceScope,
services);
forgeablesX.Add(
new StmtClassForgeableStmtProvider(statementAIFactoryProviderClassName, statementProviderClassName, informationals, namespaceScope));
}
var forgeableResult = new StmtForgeMethodResult(
forgeablesX,
filterSpecCompileds,
scheduleHandleCallbackProviders,
namedWindowConsumers,
FilterSpecCompiled.MakeExprNodeList(filterSpecCompileds, EmptyList<FilterSpecParamExprNodeForge>.Instance));
return new StmtForgeMethodSelectResult(forgeableResult, resultSetProcessorDesc.ResultEventType, numStreams);
}
