public StatementAgentInstanceFactoryOnTriggerInfraMergeForge(
ViewableActivatorForge activator,
EventType resultEventType,
IDictionary<ExprSubselectNode, SubSelectFactoryForge> subselects,
IDictionary<ExprTableAccessNode, ExprTableEvalStrategyFactoryForge> tableAccesses,
string nonSelectRSPProviderClassName,
NamedWindowMetaData namedWindow,
TableMetaData table,
SubordinateWMatchExprQueryPlanForge queryPlanForge,
InfraOnMergeHelperForge mergeHelperForge)
: base(
activator,
resultEventType,
subselects,
tableAccesses,
nonSelectRSPProviderClassName,
namedWindow,
table,
queryPlanForge)
{
this.mergeHelperForge = mergeHelperForge;
}
public static OnTriggerPlan HandleContextFactoryOnTrigger(
string className,
CodegenNamespaceScope namespaceScope,
string classPostfix,
NamedWindowMetaData namedWindow,
TableMetaData table,
OnTriggerWindowPlan planDesc,
StatementBaseInfo @base,
StatementCompileTimeServices services)
{
// validate context
var infraName = planDesc.OnTriggerDesc.WindowName;
var infraTitle = (namedWindow != null ? "Named window" : "Table") + " '" + infraName + "'";
var infraContextName = namedWindow != null ? namedWindow.ContextName : table.OptionalContextName;
var infraModuleName = namedWindow != null ? namedWindow.NamedWindowModuleName : table.TableModuleName;
var infraEventType = namedWindow != null ? namedWindow.EventType : table.InternalEventType;
var resultEventType = namedWindow != null ? namedWindow.EventType : table.PublicEventType;
var infraVisibility = namedWindow != null
? namedWindow.EventType.Metadata.AccessModifier
: table.TableVisibility;
ValidateOnExpressionContext(planDesc.ContextName, infraContextName, infraTitle);
List<StmtClassForgeableFactory> additionalForgeables = new List<StmtClassForgeableFactory>();
// validate expressions and plan subselects
var validationResult = OnTriggerPlanValidator.ValidateOnTriggerPlan(
infraEventType,
planDesc.OnTriggerDesc,
planDesc.StreamSpec,
planDesc.ActivatorResult,
planDesc.SubselectActivation,
@base,
services);
additionalForgeables.AddAll(validationResult.AdditionalForgeables);
var validatedJoin = validationResult.ValidatedJoin;
var activatorResultEventType = planDesc.ActivatorResult.ActivatorResultEventType;
var pair = IndexHintPair.GetIndexHintPair(
planDesc.OnTriggerDesc,
@base.StatementSpec.StreamSpecs[0].OptionalStreamName,
@base.StatementRawInfo,
services);
var indexHint = pair.IndexHint;
var excludePlanHint = pair.ExcludePlanHint;
var enabledSubqueryIndexShare = namedWindow != null && namedWindow.IsEnableIndexShare;
var isVirtualWindow = namedWindow != null && namedWindow.IsVirtualDataWindow;
var indexMetadata = namedWindow != null ? namedWindow.IndexMetadata : table.IndexMetadata;
var optionalUniqueKeySet = namedWindow != null ? namedWindow.UniquenessAsSet : table.UniquenessAsSet;
// query plan
var onlyUseExistingIndexes = table != null;
SubordinateWMatchExprQueryPlanResult planResult = SubordinateQueryPlanner.PlanOnExpression(
validatedJoin,
activatorResultEventType,
indexHint,
enabledSubqueryIndexShare,
-1,
excludePlanHint,
isVirtualWindow,
indexMetadata,
infraEventType,
optionalUniqueKeySet,
onlyUseExistingIndexes,
@base.StatementRawInfo,
services);
SubordinateWMatchExprQueryPlanForge queryPlan = planResult.Forge;
additionalForgeables.AddAll(planResult.AdditionalForgeables);
// indicate index dependencies
if (queryPlan.Indexes != null && infraVisibility == NameAccessModifier.PUBLIC) {
foreach (var index in queryPlan.Indexes) {
services.ModuleDependenciesCompileTime.AddPathIndex(
namedWindow != null,
infraName,
infraModuleName,
index.IndexName,
index.IndexModuleName,
services.NamedWindowCompileTimeRegistry,
services.TableCompileTimeRegistry);
}
}
var onTriggerType = planDesc.OnTriggerDesc.OnTriggerType;
var activator = planDesc.ActivatorResult.Activator;
var subselectForges = validationResult.SubselectForges;
var tableAccessForges = validationResult.TableAccessForges;
IList<StmtClassForgeable> forgeables = new List<StmtClassForgeable>(2);
StatementAgentInstanceFactoryOnTriggerInfraBaseForge forge;
var classNameRSP = CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(ResultSetProcessorFactoryProvider),
classPostfix);
ResultSetProcessorDesc resultSetProcessor;
if (onTriggerType == OnTriggerType.ON_SELECT) {
resultSetProcessor = validationResult.ResultSetProcessorPrototype;
var outputEventType = resultSetProcessor.ResultEventType;
var insertInto = false;
TableMetaData optionalInsertIntoTable = null;
var insertIntoDesc = @base.StatementSpec.Raw.InsertIntoDesc;
var addToFront = false;
if (insertIntoDesc != null) {
insertInto = true;
optionalInsertIntoTable = services.TableCompileTimeResolver.Resolve(insertIntoDesc.EventTypeName);
var optionalInsertIntoNamedWindow =
services.NamedWindowCompileTimeResolver.Resolve(insertIntoDesc.EventTypeName);
addToFront = optionalInsertIntoNamedWindow != null || optionalInsertIntoTable != null;
}
var selectAndDelete = planDesc.OnTriggerDesc.IsDeleteAndSelect;
var distinct = @base.StatementSpec.SelectClauseCompiled.IsDistinct;
MultiKeyPlan distinctMultiKeyPlan = MultiKeyPlanner.PlanMultiKeyDistinct(
distinct,
outputEventType,
@base.StatementRawInfo,
services.SerdeResolver);
additionalForgeables.AddAll(distinctMultiKeyPlan.MultiKeyForgeables);
forge = new StatementAgentInstanceFactoryOnTriggerInfraSelectForge(
activator,
outputEventType,
subselectForges,
tableAccessForges,
namedWindow,
table,
queryPlan,
classNameRSP,
insertInto,
addToFront,
optionalInsertIntoTable,
selectAndDelete,
distinct,
distinctMultiKeyPlan.ClassRef);
}
else {
var defaultSelectAllSpec = new StatementSpecCompiled();
defaultSelectAllSpec.SelectClauseCompiled.WithSelectExprList(new SelectClauseElementWildcard());
defaultSelectAllSpec.Raw.SelectStreamDirEnum = SelectClauseStreamSelectorEnum.RSTREAM_ISTREAM_BOTH;
StreamTypeService typeService = new StreamTypeServiceImpl(
new[] {resultEventType},
new[] {infraName},
new[] {false},
false,
false);
resultSetProcessor = ResultSetProcessorFactoryFactory.GetProcessorPrototype(
new ResultSetSpec(defaultSelectAllSpec),
typeService,
null,
new bool[1],
false,
@base.ContextPropertyRegistry,
false,
false,
@base.StatementRawInfo,
services);
if (onTriggerType == OnTriggerType.ON_DELETE) {
forge = new StatementAgentInstanceFactoryOnTriggerInfraDeleteForge(
activator,
resultEventType,
subselectForges,
tableAccessForges,
classNameRSP,
namedWindow,
table,
queryPlan);
}
else if (onTriggerType == OnTriggerType.ON_UPDATE) {
var updateDesc = (OnTriggerWindowUpdateDesc) planDesc.OnTriggerDesc;
EventBeanUpdateHelperForge updateHelper = EventBeanUpdateHelperForgeFactory.Make(
infraName,
(EventTypeSPI) infraEventType,
updateDesc.Assignments,
validationResult.ZeroStreamAliasName,
activatorResultEventType,
namedWindow != null,
@base.StatementName,
services.EventTypeAvroHandler);
forge = new StatementAgentInstanceFactoryOnTriggerInfraUpdateForge(
activator,
resultEventType,
subselectForges,
tableAccessForges,
classNameRSP,
namedWindow,
table,
queryPlan,
updateHelper);
}
else if (onTriggerType == OnTriggerType.ON_MERGE) {
var onMergeTriggerDesc = (OnTriggerMergeDesc) planDesc.OnTriggerDesc;
var onMergeHelper = new InfraOnMergeHelperForge(
onMergeTriggerDesc,
activatorResultEventType,
planDesc.StreamSpec.OptionalStreamName,
infraName,
(EventTypeSPI) infraEventType,
@base.StatementRawInfo,
services,
table);
forge = new StatementAgentInstanceFactoryOnTriggerInfraMergeForge(
activator,
resultEventType,
subselectForges,
tableAccessForges,
classNameRSP,
namedWindow,
table,
queryPlan,
onMergeHelper);
}
else {
throw new IllegalStateException("Unrecognized trigger type " + onTriggerType);
}
}
forgeables.Add(
new StmtClassForgeableRSPFactoryProvider(
classNameRSP,
resultSetProcessor,
namespaceScope,
@base.StatementRawInfo));
var queryPlanLogging = services.Configuration.Common.Logging.IsEnableQueryPlan;
SubordinateQueryPlannerUtil.QueryPlanLogOnExpr(
queryPlanLogging,
QUERY_PLAN_LOG,
queryPlan,
@base.StatementSpec.Annotations,
services.ImportServiceCompileTime);
StmtClassForgeableAIFactoryProviderOnTrigger onTrigger = new StmtClassForgeableAIFactoryProviderOnTrigger(className, namespaceScope, forge);
return new OnTriggerPlan(onTrigger, forgeables, resultSetProcessor.SelectSubscriberDescriptor, additionalForgeables);
}
protected override void InitExec(
string aliasName,
StatementSpecCompiled spec,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices services)
{
var selectNoWildcard = InfraOnMergeHelperForge.CompileSelectNoWildcard(
UuidGenerator.Generate(),
Arrays.AsList(spec.SelectClauseCompiled.SelectExprList));
StreamTypeService streamTypeService = new StreamTypeServiceImpl(true);
// assign names
var validationContext = new ExprValidationContextBuilder(streamTypeService, statementRawInfo, services)
.WithAllowBindingConsumption(true)
.Build();
// determine whether column names are provided
// if the "values" keyword was used, allow sequential automatic name assignment
string[] assignedSequentialNames = null;
if (spec.Raw.InsertIntoDesc.ColumnNames.IsEmpty()) {
var insert = (FireAndForgetSpecInsert) spec.Raw.FireAndForgetSpec;
if (insert.IsUseValuesKeyword) {
assignedSequentialNames = processor.EventTypePublic.PropertyNames;
}
}
var count = -1;
foreach (var compiled in spec.SelectClauseCompiled.SelectExprList) {
count++;
if (compiled is SelectClauseExprCompiledSpec) {
var expr = (SelectClauseExprCompiledSpec) compiled;
var validatedExpression = ExprNodeUtilityValidate.GetValidatedSubtree(
ExprNodeOrigin.SELECT,
expr.SelectExpression,
validationContext);
expr.SelectExpression = validatedExpression;
if (expr.AssignedName == null) {
if (expr.ProvidedName == null) {
if (assignedSequentialNames != null && count < assignedSequentialNames.Length) {
expr.AssignedName = assignedSequentialNames[count];
}
else {
expr.AssignedName =
ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(expr.SelectExpression);
}
}
else {
expr.AssignedName = expr.ProvidedName;
}
}
}
}
EventType optionalInsertIntoEventType = processor.EventTypeRspInputEvents;
var args = new SelectProcessorArgs(
selectNoWildcard.ToArray(),
null,
false,
optionalInsertIntoEventType,
null,
streamTypeService,
statementRawInfo.OptionalContextDescriptor,
true,
spec.Annotations,
statementRawInfo,
services);
insertHelper = SelectExprProcessorFactory.GetProcessor(args, spec.Raw.InsertIntoDesc, false).Forge;
}
