public static FilterSpecCompiled BuildNoStmtCtx(
IList<ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
string optionalStreamName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
ISet<string> allTagNamesOrdered,
StreamTypeService streamTypeService,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices)
{
PropertyEvaluatorForge optionalPropertyEvaluator = null;
if (optionalPropertyEvalSpec != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
optionalPropertyEvalSpec,
eventType,
optionalStreamName,
statementRawInfo,
compileTimeServices);
}
// unwind "and" and "or"
var unwound = FilterSpecCompilerIndexPlannerUnwindAndOr.UnwindAndOr(validatedNodes);
var args = new FilterSpecCompilerArgs(
taggedEventTypes,
arrayEventTypes,
allTagNamesOrdered,
streamTypeService,
null,
statementRawInfo,
compileTimeServices);
var plan = FilterSpecCompilerIndexPlanner.PlanFilterParameters(unwound, args);
var hook = (FilterSpecCompileHook) ImportUtil.GetAnnotationHook(
statementRawInfo.Annotations,
HookType.INTERNAL_FILTERSPEC,
typeof(FilterSpecCompileHook),
compileTimeServices.ImportServiceCompileTime);
hook?.FilterIndexPlan(eventType, unwound, plan);
if (compileTimeServices.Configuration.Compiler.Logging.IsEnableFilterPlan) {
LogFilterPlans(unwound, plan, eventType, optionalStreamName, statementRawInfo);
}
if (Log.IsDebugEnabled) {
Log.Debug(".makeFilterSpec spec=" + plan);
}
return new FilterSpecCompiled(eventType, eventTypeName, plan, optionalPropertyEvaluator);
}
public static FilterSpecCompiled BuildNoStmtCtx(
IList<ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
string optionalStreamName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
StreamTypeService streamTypeService,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices
)
{
PropertyEvaluatorForge optionalPropertyEvaluator = null;
if (optionalPropertyEvalSpec != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
optionalPropertyEvalSpec,
eventType,
optionalStreamName,
statementRawInfo,
compileTimeServices);
}
var args = new FilterSpecCompilerArgs(
taggedEventTypes,
arrayEventTypes,
streamTypeService,
null,
statementRawInfo,
compileTimeServices);
IList<FilterSpecParamForge>[] spec = FilterSpecCompilerPlanner.PlanFilterParameters(validatedNodes, args);
if (Log.IsDebugEnabled) {
Log.Debug(".makeFilterSpec spec=" + spec);
}
return new FilterSpecCompiled(eventType, eventTypeName, spec, optionalPropertyEvaluator);
}
public static StreamSpecCompiled CompileFilter(
FilterStreamSpecRaw streamSpec,
bool isInsertInto,
bool isJoin,
bool isContextDeclaration,
bool isOnTrigger,
string optionalStreamName,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices services)
{
// Determine the event type
var rawFilterSpec = streamSpec.RawFilterSpec;
var eventTypeName = rawFilterSpec.EventTypeName;
var table = services.TableCompileTimeResolver.Resolve(eventTypeName);
if (table != null) {
if (streamSpec.ViewSpecs != null && streamSpec.ViewSpecs.Length > 0) {
throw new ExprValidationException("Views are not supported with tables");
}
if (streamSpec.RawFilterSpec.OptionalPropertyEvalSpec != null) {
throw new ExprValidationException("Contained-event expressions are not supported with tables");
}
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
new[] {table.InternalEventType},
new[] {optionalStreamName},
new[] {true},
false,
false);
var validatedNodes = FilterSpecCompiler.ValidateAllowSubquery(
ExprNodeOrigin.FILTER,
rawFilterSpec.FilterExpressions,
streamTypeService,
null,
null,
statementRawInfo,
services);
return new TableQueryStreamSpec(
streamSpec.OptionalStreamName,
streamSpec.ViewSpecs,
streamSpec.Options,
table,
validatedNodes);
}
// Could be a named window
var namedWindowInfo = services.NamedWindowCompileTimeResolver.Resolve(eventTypeName);
if (namedWindowInfo != null) {
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
new[] {namedWindowInfo.EventType},
new[] {optionalStreamName},
new[] {true},
false,
false);
var validatedNodes = FilterSpecCompiler.ValidateAllowSubquery(
ExprNodeOrigin.FILTER,
rawFilterSpec.FilterExpressions,
streamTypeService,
null,
null,
statementRawInfo,
services);
PropertyEvaluatorForge optionalPropertyEvaluator = null;
if (rawFilterSpec.OptionalPropertyEvalSpec != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
rawFilterSpec.OptionalPropertyEvalSpec,
namedWindowInfo.EventType,
streamSpec.OptionalStreamName,
statementRawInfo,
services);
}
return new NamedWindowConsumerStreamSpec(
namedWindowInfo,
streamSpec.OptionalStreamName,
streamSpec.ViewSpecs,
validatedNodes,
streamSpec.Options,
optionalPropertyEvaluator);
}
var eventType = ResolveTypeName(eventTypeName, services.EventTypeCompileTimeResolver);
// Validate all nodes, make sure each returns a boolean and types are good;
// Also decompose all AND super nodes into individual expressions
StreamTypeService streamTypeServiceX = new StreamTypeServiceImpl(
new[] {eventType},
new[] {streamSpec.OptionalStreamName},
new[] {true},
false,
false);
var spec = FilterSpecCompiler.MakeFilterSpec(
eventType,
eventTypeName,
rawFilterSpec.FilterExpressions,
rawFilterSpec.OptionalPropertyEvalSpec,
null,
null, // no tags
streamTypeServiceX,
streamSpec.OptionalStreamName,
statementRawInfo,
services);
return new FilterStreamSpecCompiled(
spec,
streamSpec.ViewSpecs,
streamSpec.OptionalStreamName,
streamSpec.Options);
}
private static void RecursiveCompile(
EvalForgeNode evalNode,
ISet<string> eventTypeReferences,
bool isInsertInto,
MatchEventSpec tags,
Stack<EvalForgeNode> parentNodeStack,
ISet<string> allTagNamesOrdered,
int streamNum,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices services)
{
parentNodeStack.Push(evalNode);
foreach (var child in evalNode.ChildNodes) {
RecursiveCompile(
child,
eventTypeReferences,
isInsertInto,
tags,
parentNodeStack,
allTagNamesOrdered,
streamNum,
statementRawInfo,
services);
}
parentNodeStack.Pop();
IDictionary<string, Pair<EventType, string>> newTaggedEventTypes = null;
IDictionary<string, Pair<EventType, string>> newArrayEventTypes = null;
if (evalNode is EvalFilterForgeNode) {
var filterNode = (EvalFilterForgeNode) evalNode;
var eventName = filterNode.RawFilterSpec.EventTypeName;
if (services.TableCompileTimeResolver.Resolve(eventName) != null) {
throw new ExprValidationException("Tables cannot be used in pattern filter atoms");
}
var resolvedEventType = ResolveTypeName(eventName, services.EventTypeCompileTimeResolver);
var finalEventType = resolvedEventType;
var optionalTag = filterNode.EventAsName;
var isPropertyEvaluation = false;
var isParentMatchUntil = IsParentMatchUntil(evalNode, parentNodeStack);
// obtain property event type, if final event type is properties
if (filterNode.RawFilterSpec.OptionalPropertyEvalSpec != null) {
var optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
filterNode.RawFilterSpec.OptionalPropertyEvalSpec,
resolvedEventType,
filterNode.EventAsName,
statementRawInfo,
services);
finalEventType = optionalPropertyEvaluator.FragmentEventType;
isPropertyEvaluation = true;
}
// If a tag was supplied for the type, the tags must stay with this type, i.e. a=BeanA -> b=BeanA -> a=BeanB is a no
if (optionalTag != null) {
var pair = tags.TaggedEventTypes.Get(optionalTag);
EventType existingType = null;
if (pair != null) {
existingType = pair.First;
}
if (existingType == null) {
pair = tags.ArrayEventTypes.Get(optionalTag);
if (pair != null) {
throw new ExprValidationException(
"Tag '" +
optionalTag +
"' for event '" +
eventName +
"' used in the repeat-until operator cannot also appear in other filter expressions");
}
}
if (existingType != null && existingType != finalEventType) {
throw new ExprValidationException(
"Tag '" +
optionalTag +
"' for event '" +
eventName +
"' has already been declared for events of type " +
existingType.UnderlyingType.Name);
}
pair = new Pair<EventType, string>(finalEventType, eventName);
// add tagged type
if (isPropertyEvaluation || isParentMatchUntil) {
newArrayEventTypes = new LinkedHashMap<string, Pair<EventType, string>>();
newArrayEventTypes.Put(optionalTag, pair);
}
else {
newTaggedEventTypes = new LinkedHashMap<string, Pair<EventType, string>>();
newTaggedEventTypes.Put(optionalTag, pair);
}
}
// For this filter, filter types are all known tags at this time,
// and additionally stream 0 (self) is our event type.
// Stream type service allows resolution by property name event if that name appears in other tags.
// by defaulting to stream zero.
// Stream zero is always the current event type, all others follow the order of the map (stream 1 to N).
var selfStreamName = optionalTag;
if (selfStreamName == null) {
selfStreamName = "s_" + UuidGenerator.Generate();
}
var filterTypes = new LinkedHashMap<string, Pair<EventType, string>>();
var typePair = new Pair<EventType, string>(finalEventType, eventName);
filterTypes.Put(selfStreamName, typePair);
filterTypes.PutAll(tags.TaggedEventTypes);
// for the filter, specify all tags used
var filterTaggedEventTypes = new LinkedHashMap<string, Pair<EventType, string>>(tags.TaggedEventTypes);
filterTaggedEventTypes.Remove(optionalTag);
// handle array tags (match-until clause)
IDictionary<string, Pair<EventType, string>> arrayCompositeEventTypes = null;
if (tags.ArrayEventTypes != null && !tags.ArrayEventTypes.IsEmpty()) {
arrayCompositeEventTypes = new LinkedHashMap<string, Pair<EventType, string>>();
foreach (var entry in tags.ArrayEventTypes) {
var specificArrayType = new LinkedHashMap<string, Pair<EventType, string>>();
specificArrayType.Put(entry.Key, entry.Value);
var eventTypeName = services.EventTypeNameGeneratorStatement.GetAnonymousPatternNameWTag(
streamNum,
evalNode.FactoryNodeId,
entry.Key);
var mapProps = GetMapProperties(
Collections.GetEmptyMap<string, Pair<EventType, string>>(),
specificArrayType);
var metadata = new EventTypeMetadata(
eventTypeName,
statementRawInfo.ModuleName,
EventTypeTypeClass.PATTERNDERIVED,
EventTypeApplicationType.MAP,
NameAccessModifier.TRANSIENT,
EventTypeBusModifier.NONBUS,
false,
EventTypeIdPair.Unassigned());
var mapEventType = BaseNestableEventUtil.MakeMapTypeCompileTime(
metadata,
mapProps,
null,
null,
null,
null,
services.BeanEventTypeFactoryPrivate,
services.EventTypeCompileTimeResolver);
services.EventTypeCompileTimeRegistry.NewType(mapEventType);
var tag = entry.Key;
if (!filterTypes.ContainsKey(tag)) {
var pair = new Pair<EventType, string>(mapEventType, tag);
filterTypes.Put(tag, pair);
arrayCompositeEventTypes.Put(tag, pair);
}
}
}
StreamTypeService streamTypeService = new StreamTypeServiceImpl(filterTypes, true, false);
var exprNodes = filterNode.RawFilterSpec.FilterExpressions;
var spec = FilterSpecCompiler.MakeFilterSpec(
resolvedEventType,
eventName,
exprNodes,
filterNode.RawFilterSpec.OptionalPropertyEvalSpec,
filterTaggedEventTypes,
arrayCompositeEventTypes,
streamTypeService,
null,
statementRawInfo,
services);
filterNode.FilterSpec = spec;
}
else if (evalNode is EvalObserverForgeNode) {
var observerNode = (EvalObserverForgeNode) evalNode;
try {
var observerForge =
services.PatternResolutionService.Create(observerNode.PatternObserverSpec);
var streamTypeService = GetStreamTypeService(
tags.TaggedEventTypes,
tags.ArrayEventTypes,
observerNode,
streamNum,
statementRawInfo,
services);
var validationContext = new ExprValidationContextBuilder(
streamTypeService,
statementRawInfo,
services).Build();
var validated = ValidateExpressions(
ExprNodeOrigin.PATTERNOBSERVER,
observerNode.PatternObserverSpec.ObjectParameters,
validationContext);
var convertor = new MatchedEventConvertorForge(
tags.TaggedEventTypes,
tags.ArrayEventTypes,
allTagNamesOrdered);
observerNode.ObserverFactory = observerForge;
observerForge.SetObserverParameters(validated, convertor, validationContext);
}
catch (ObserverParameterException e) {
throw new ExprValidationException(
"Invalid parameter for pattern observer '" +
observerNode.ToPrecedenceFreeEPL() +
"': " +
e.Message,
e);
}
catch (PatternObjectException e) {
throw new ExprValidationException(
"Failed to resolve pattern observer '" + observerNode.ToPrecedenceFreeEPL() + "': " + e.Message,
e);
}
}
else if (evalNode is EvalGuardForgeNode) {
var guardNode = (EvalGuardForgeNode) evalNode;
try {
var guardForge = services.PatternResolutionService.Create(guardNode.PatternGuardSpec);
var streamTypeService = GetStreamTypeService(
tags.TaggedEventTypes,
tags.ArrayEventTypes,
guardNode,
streamNum,
statementRawInfo,
services);
var validationContext = new ExprValidationContextBuilder(
streamTypeService,
statementRawInfo,
services).Build();
var validated = ValidateExpressions(
ExprNodeOrigin.PATTERNGUARD,
guardNode.PatternGuardSpec.ObjectParameters,
validationContext);
var convertor = new MatchedEventConvertorForge(
tags.TaggedEventTypes,
tags.ArrayEventTypes,
allTagNamesOrdered);
guardNode.GuardForge = guardForge;
guardForge.SetGuardParameters(validated, convertor, services);
}
catch (GuardParameterException e) {
throw new ExprValidationException(
"Invalid parameter for pattern guard '" + guardNode.ToPrecedenceFreeEPL() + "': " + e.Message,
e);
}
catch (PatternObjectException e) {
throw new ExprValidationException(
"Failed to resolve pattern guard '" + guardNode.ToPrecedenceFreeEPL() + "': " + e.Message,
e);
}
}
else if (evalNode is EvalEveryDistinctForgeNode) {
var distinctNode = (EvalEveryDistinctForgeNode) evalNode;
var matchEventFromChildNodes = AnalyzeMatchEvent(distinctNode);
var streamTypeService = GetStreamTypeService(
matchEventFromChildNodes.TaggedEventTypes,
matchEventFromChildNodes.ArrayEventTypes,
distinctNode,
streamNum,
statementRawInfo,
services);
var validationContext =
new ExprValidationContextBuilder(streamTypeService, statementRawInfo, services).Build();
IList<ExprNode> validated;
try {
validated = ValidateExpressions(
ExprNodeOrigin.PATTERNEVERYDISTINCT,
distinctNode.Expressions,
validationContext);
}
catch (ExprValidationPropertyException ex) {
throw new ExprValidationPropertyException(
ex.Message +
", every-distinct requires that all properties resolve from sub-expressions to the every-distinct",
ex.InnerException);
}
var convertor = new MatchedEventConvertorForge(
matchEventFromChildNodes.TaggedEventTypes,
matchEventFromChildNodes.ArrayEventTypes,
allTagNamesOrdered);
distinctNode.Convertor = convertor;
// Determine whether some expressions are constants or time period
IList<ExprNode> distinctExpressions = new List<ExprNode>();
TimePeriodComputeForge timePeriodComputeForge = null;
ExprNode expiryTimeExp = null;
var count = -1;
var last = validated.Count - 1;
foreach (var expr in validated) {
count++;
if (count == last && expr is ExprTimePeriod) {
expiryTimeExp = expr;
var timePeriodExpr = (ExprTimePeriod) expiryTimeExp;
timePeriodComputeForge = timePeriodExpr.TimePeriodComputeForge;
}
else if (expr.Forge.ForgeConstantType.IsCompileTimeConstant) {
if (count == last) {
var value = expr.Forge.ExprEvaluator.Evaluate(null, true, null);
if (!value.IsNumber()) {
throw new ExprValidationException(
"Invalid parameter for every-distinct, expected number of seconds constant (constant not considered for distinct)");
}
var secondsExpire = expr.Forge.ExprEvaluator.Evaluate(null, true, null);
var timeExpire = secondsExpire == null
? (long?) null
: (long?) services.ImportServiceCompileTime.TimeAbacus.DeltaForSecondsNumber(
secondsExpire);
if (timeExpire != null && timeExpire > 0) {
timePeriodComputeForge = new TimePeriodComputeConstGivenDeltaForge(timeExpire.Value);
expiryTimeExp = expr;
}
else {
Log.Warn(
"Invalid seconds-expire " +
timeExpire +
" for " +
ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(expr));
}
}
else {
Log.Warn(
"Every-distinct node utilizes an expression returning a constant value, please check expression '" +
ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(expr) +
"', not adding expression to distinct-value expression list");
}
}
else {
distinctExpressions.Add(expr);
}
}
if (distinctExpressions.IsEmpty()) {
throw new ExprValidationException(
"Every-distinct node requires one or more distinct-value expressions that each return non-constant result values");
}
distinctNode.SetDistinctExpressions(distinctExpressions, timePeriodComputeForge, expiryTimeExp);
}
else if (evalNode is EvalMatchUntilForgeNode) {
var matchUntilNode = (EvalMatchUntilForgeNode) evalNode;
// compile bounds expressions, if any
var untilMatchEventSpec = new MatchEventSpec(tags.TaggedEventTypes, tags.ArrayEventTypes);
var streamTypeService = GetStreamTypeService(
untilMatchEventSpec.TaggedEventTypes,
untilMatchEventSpec.ArrayEventTypes,
matchUntilNode,
streamNum,
statementRawInfo,
services);
var validationContext =
new ExprValidationContextBuilder(streamTypeService, statementRawInfo, services).Build();
var lower = ValidateBounds(matchUntilNode.LowerBounds, validationContext);
matchUntilNode.LowerBounds = lower;
var upper = ValidateBounds(matchUntilNode.UpperBounds, validationContext);
matchUntilNode.UpperBounds = upper;
var single = ValidateBounds(matchUntilNode.SingleBound, validationContext);
matchUntilNode.SingleBound = single;
bool tightlyBound;
if (matchUntilNode.SingleBound != null) {
ValidateMatchUntil(matchUntilNode.SingleBound, matchUntilNode.SingleBound, false);
tightlyBound = true;
}
else {
var allowZeroLowerBounds = matchUntilNode.LowerBounds != null && matchUntilNode.UpperBounds != null;
tightlyBound = ValidateMatchUntil(
matchUntilNode.LowerBounds,
matchUntilNode.UpperBounds,
allowZeroLowerBounds);
}
if (matchUntilNode.SingleBound == null && !tightlyBound && matchUntilNode.ChildNodes.Count < 2) {
throw new ExprValidationException("Variable bounds repeat operator requires an until-expression");
}
var convertor = new MatchedEventConvertorForge(
untilMatchEventSpec.TaggedEventTypes,
untilMatchEventSpec.ArrayEventTypes,
allTagNamesOrdered);
matchUntilNode.Convertor = convertor;
// compile new tag lists
ISet<string> arrayTags = null;
var matchUntilAnalysisResult = EvalNodeUtil.RecursiveAnalyzeChildNodes(matchUntilNode.ChildNodes[0]);
foreach (var filterNode in matchUntilAnalysisResult.FilterNodes) {
var optionalTag = filterNode.EventAsName;
if (optionalTag != null) {
if (arrayTags == null) {
arrayTags = new HashSet<string>();
}
arrayTags.Add(optionalTag);
}
}
if (arrayTags != null) {
foreach (var arrayTag in arrayTags) {
if (!tags.ArrayEventTypes.ContainsKey(arrayTag)) {
tags.ArrayEventTypes.Put(arrayTag, tags.TaggedEventTypes.Get(arrayTag));
tags.TaggedEventTypes.Remove(arrayTag);
}
}
}
matchUntilNode.TagsArrayedSet = GetIndexesForTags(allTagNamesOrdered, arrayTags);
}
else if (evalNode is EvalFollowedByForgeNode) {
var followedByNode = (EvalFollowedByForgeNode) evalNode;
StreamTypeService streamTypeService = new StreamTypeServiceImpl(false);
var validationContext =
new ExprValidationContextBuilder(streamTypeService, statementRawInfo, services).Build();
if (followedByNode.OptionalMaxExpressions != null) {
IList<ExprNode> validated = new List<ExprNode>();
foreach (var maxExpr in followedByNode.OptionalMaxExpressions) {
if (maxExpr == null) {
validated.Add(null);
}
else {
var visitor = new ExprNodeSummaryVisitor();
maxExpr.Accept(visitor);
if (!visitor.IsPlain) {
var errorMessage = "Invalid maximum expression in followed-by, " +
visitor.Message +
" are not allowed within the expression";
Log.Error(errorMessage);
throw new ExprValidationException(errorMessage);
}
var validatedExpr = ExprNodeUtilityValidate.GetValidatedSubtree(
ExprNodeOrigin.FOLLOWEDBYMAX,
maxExpr,
validationContext);
validated.Add(validatedExpr);
var returnType = validatedExpr.Forge.EvaluationType;
if (returnType == null || !returnType.IsNumeric()) {
var message =
"Invalid maximum expression in followed-by, the expression must return an integer value";
throw new ExprValidationException(message);
}
}
}
followedByNode.OptionalMaxExpressions = validated;
}
}
if (newTaggedEventTypes != null) {
tags.TaggedEventTypes.PutAll(newTaggedEventTypes);
}
if (newArrayEventTypes != null) {
tags.ArrayEventTypes.PutAll(newArrayEventTypes);
}
}
public static OnTriggerPlan HandleSplitStream(
string aiFactoryProviderClassName,
CodegenNamespaceScope namespaceScope,
string classPostfix,
OnTriggerSplitStreamDesc desc,
StreamSpecCompiled streamSpec,
OnTriggerActivatorDesc activatorResult,
IDictionary<ExprSubselectNode, SubSelectActivationPlan> subselectActivation,
StatementBaseInfo @base,
StatementCompileTimeServices services)
{
var raw = @base.StatementSpec.Raw;
if (raw.InsertIntoDesc == null) {
throw new ExprValidationException(
"Required insert-into clause is not provided, the clause is required for split-stream syntax");
}
if (raw.GroupByExpressions != null && raw.GroupByExpressions.Count > 0 ||
raw.HavingClause != null ||
raw.OrderByList.Count > 0) {
throw new ExprValidationException(
"A group-by clause, having-clause or order-by clause is not allowed for the split stream syntax");
}
var streamName = streamSpec.OptionalStreamName;
if (streamName == null) {
streamName = "stream_0";
}
StreamTypeService typeServiceTrigger = new StreamTypeServiceImpl(
new[] {activatorResult.ActivatorResultEventType},
new[] {streamName},
new[] {true},
false,
false);
// materialize sub-select views
var subselectForges = SubSelectHelperForgePlanner.PlanSubSelect(
@base,
subselectActivation,
new[] {streamSpec.OptionalStreamName},
new[] {activatorResult.ActivatorResultEventType},
new[] {activatorResult.TriggerEventTypeName},
services);
// compile top-level split
var items = new OnSplitItemForge[desc.SplitStreams.Count + 1];
items[0] = OnSplitValidate(
typeServiceTrigger,
@base.StatementSpec,
@base.ContextPropertyRegistry,
null,
@base.StatementRawInfo,
services);
// compile each additional split
var index = 1;
foreach (var splits in desc.SplitStreams) {
var splitSpec = new StatementSpecCompiled();
splitSpec.Raw.InsertIntoDesc = splits.InsertInto;
splitSpec.SelectClauseCompiled = CompileSelectAllowSubselect(splits.SelectClause);
splitSpec.Raw.WhereClause = splits.WhereClause;
PropertyEvaluatorForge optionalPropertyEvaluator = null;
StreamTypeService typeServiceProperty;
if (splits.FromClause != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
splits.FromClause.PropertyEvalSpec,
activatorResult.ActivatorResultEventType,
streamName,
@base.StatementRawInfo,
services);
typeServiceProperty = new StreamTypeServiceImpl(
new[] {optionalPropertyEvaluator.FragmentEventType},
new[] {splits.FromClause.OptionalStreamName},
new[] {true},
false,
false);
}
else {
typeServiceProperty = typeServiceTrigger;
}
items[index] = OnSplitValidate(
typeServiceProperty,
splitSpec,
@base.ContextPropertyRegistry,
optionalPropertyEvaluator,
@base.StatementRawInfo,
services);
index++;
}
// handle result set processor classes
IList<StmtClassForgable> forgables = new List<StmtClassForgable>();
for (var i = 0; i < items.Length; i++) {
var classNameRSP = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(ResultSetProcessorFactoryProvider),
classPostfix + "_" + i);
forgables.Add(
new StmtClassForgableRSPFactoryProvider(
classNameRSP,
items[i].ResultSetProcessorDesc,
namespaceScope,
@base.StatementRawInfo));
items[i].ResultSetProcessorClassName = classNameRSP;
}
// plan table access
var tableAccessForges = ExprTableEvalHelperPlan.PlanTableAccess(@base.StatementSpec.TableAccessNodes);
// build forge
var splitStreamForge = new StatementAgentInstanceFactoryOnTriggerSplitStreamForge(
activatorResult.Activator,
activatorResult.ActivatorResultEventType,
subselectForges,
tableAccessForges,
items,
desc.IsFirst);
var triggerForge = new StmtClassForgableAIFactoryProviderOnTrigger(
aiFactoryProviderClassName,
namespaceScope,
splitStreamForge);
return new OnTriggerPlan(triggerForge, forgables, new SelectSubscriberDescriptor());
}
