private NamedWindowOnMergeActionIns SetupInsert(string namedWindowName, InternalEventRouter internalEventRouter, EventTypeSPI eventTypeNamedWindow, int selectClauseNumber, OnTriggerMergeActionInsert desc, EventType triggeringEventType, string triggeringStreamName, StatementContext statementContext) { // Compile insert-into INFO string streamName = desc.OptionalStreamName ?? eventTypeNamedWindow.Name; var insertIntoDesc = InsertIntoDesc.FromColumns(streamName, desc.Columns); // rewrite any wildcards to use "stream.wildcard" if (triggeringStreamName == null) { triggeringStreamName = UuidGenerator.Generate(); } var selectNoWildcard = CompileSelectNoWildcard(triggeringStreamName, desc.SelectClauseCompiled); // Set up event types for select-clause evaluation: The first type does not contain anything as its the named window row which is not present for insert var dummyTypeNoProperties = new MapEventType(EventTypeMetadata.CreateAnonymous("merge_named_window_insert", ApplicationType.MAP), "merge_named_window_insert", 0, null, Collections.EmptyDataMap, null, null, null); var eventTypes = new EventType[] { dummyTypeNoProperties, triggeringEventType }; var streamNames = new string[] { UuidGenerator.Generate(), triggeringStreamName }; var streamTypeService = new StreamTypeServiceImpl(eventTypes, streamNames, new bool[1], statementContext.EngineURI, false); // Get select expr processor var selectExprEventTypeRegistry = new SelectExprEventTypeRegistry(statementContext.StatementName, statementContext.StatementEventTypeRef); var exprEvaluatorContext = new ExprEvaluatorContextStatement(statementContext, false); var insertHelper = SelectExprProcessorFactory.GetProcessor( statementContext.Container, Collections.SingletonList(selectClauseNumber), selectNoWildcard.ToArray(), false, insertIntoDesc, null, null, streamTypeService, statementContext.EventAdapterService, statementContext.StatementResultService, statementContext.ValueAddEventService, selectExprEventTypeRegistry, statementContext.EngineImportService, exprEvaluatorContext, statementContext.VariableService, statementContext.ScriptingService, statementContext.TableService, statementContext.TimeProvider, statementContext.EngineURI, statementContext.StatementId, statementContext.StatementName, statementContext.Annotations, statementContext.ContextDescriptor, statementContext.ConfigSnapshot, null, statementContext.NamedWindowMgmtService, null, null, statementContext.StatementExtensionServicesContext); var filterEval = desc.OptionalWhereClause == null ? null : desc.OptionalWhereClause.ExprEvaluator; var routerToUser = streamName.Equals(namedWindowName) ? null : internalEventRouter; var audit = AuditEnum.INSERT.GetAudit(statementContext.Annotations) != null; string insertIntoTableName = null; if (statementContext.TableService.GetTableMetadata(insertIntoDesc.EventTypeName) != null) { insertIntoTableName = insertIntoDesc.EventTypeName; } return(new NamedWindowOnMergeActionIns(filterEval, insertHelper, routerToUser, insertIntoTableName, statementContext.TableService, statementContext.EpStatementHandle, statementContext.InternalEventEngineRouteDest, audit)); }
/// <summary> /// Makes the property evaluator. /// </summary> /// <param name="spec">is the property specification</param> /// <param name="sourceEventType">the event type</param> /// <param name="optionalSourceStreamName">the source stream name</param> /// <param name="eventAdapterService">for event instances</param> /// <param name="engineImportService">The engine import service.</param> /// <param name="timeProvider">provides time</param> /// <param name="variableService">for resolving variables</param> /// <param name="scriptingService">The scripting service.</param> /// <param name="tableService">The table service.</param> /// <param name="engineURI">engine URI</param> /// <param name="statementId">The statement identifier.</param> /// <param name="statementName">Name of the statement.</param> /// <param name="annotations">The annotations.</param> /// <param name="assignedTypeNumberStack">The assigned type number stack.</param> /// <param name="configuration">The configuration.</param> /// <param name="namedWindowMgmtService">The named window service.</param> /// <param name="statementExtensionSvcContext">The statement extension SVC context.</param> /// <returns> /// propert evaluator /// </returns> /// <exception cref="ExprValidationException">Missing @type(name) declaration providing the event type name of the return type for expression ' + /// ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + ' /// or /// Event type by name ' + atom.OptionalResultEventType + ' could not be found /// or /// Event type ' + streamEventType.Name + ' underlying type + streamEventType.UnderlyingType.Name + /// cannot be assigned a value of type + returnType.GetTypeNameFullyQualPretty() /// or /// Return type of expression ' + ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + ' is ' + returnType.Name + ', expected an Iterable or array result /// or /// Property rename ' + rawStreamSpec.MaskTypeName + ' not found in path /// or /// Expression in a property-selection may not utilize + isMinimal</exception> /// <exception cref="IllegalStateException">Unknown select clause item: + raw</exception> /// <throws>ExprValidationException if any expressions could not be verified</throws> public static PropertyEvaluator MakeEvaluator( PropertyEvalSpec spec, EventType sourceEventType, string optionalSourceStreamName, EventAdapterService eventAdapterService, EngineImportService engineImportService, TimeProvider timeProvider, VariableService variableService, ScriptingService scriptingService, TableService tableService, string engineURI, int statementId, string statementName, Attribute[] annotations, ICollection <int> assignedTypeNumberStack, ConfigurationInformation configuration, NamedWindowMgmtService namedWindowMgmtService, StatementExtensionSvcContext statementExtensionSvcContext) { var length = spec.Atoms.Count; var containedEventEvals = new ContainedEventEval[length]; var fragmentEventTypes = new FragmentEventType[length]; var currentEventType = sourceEventType; var whereClauses = new ExprEvaluator[length]; var streamEventTypes = new List <EventType>(); var streamNames = new List <string>(); var streamNameAndNumber = new Dictionary <string, int>().WithNullSupport(); var expressionTexts = new List <string>(); var validateContext = new ExprEvaluatorContextTimeOnly(timeProvider); streamEventTypes.Add(sourceEventType); streamNames.Add(optionalSourceStreamName); streamNameAndNumber.Put(optionalSourceStreamName, 0); expressionTexts.Add(sourceEventType.Name); IList <SelectClauseElementCompiled> cumulativeSelectClause = new List <SelectClauseElementCompiled>(); for (var i = 0; i < length; i++) { var atom = spec.Atoms[i]; ContainedEventEval containedEventEval = null; string expressionText = null; EventType streamEventType = null; FragmentEventType fragmentEventType = null; // Resolve directly as fragment event type if possible if (atom.SplitterExpression is ExprIdentNode) { var propertyName = ((ExprIdentNode)atom.SplitterExpression).FullUnresolvedName; fragmentEventType = currentEventType.GetFragmentType(propertyName); if (fragmentEventType != null) { var getter = currentEventType.GetGetter(propertyName); if (getter != null) { containedEventEval = new ContainedEventEvalGetter(getter); expressionText = propertyName; streamEventType = fragmentEventType.FragmentType; } } } // evaluate splitter expression if (containedEventEval == null) { ExprNodeUtility.ValidatePlainExpression( ExprNodeOrigin.CONTAINEDEVENT, ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression), atom.SplitterExpression); var availableTypes = streamEventTypes.ToArray(); var availableStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( availableTypes, availableStreamNames, isIStreamOnly, engineURI, false); var validationContext = new ExprValidationContext( streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService, validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService, false, false, true, false, null, false); var validatedExprNode = ExprNodeUtility.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, atom.SplitterExpression, validationContext); var evaluator = validatedExprNode.ExprEvaluator; // determine result type if (atom.OptionalResultEventType == null) { throw new ExprValidationException( "Missing @type(name) declaration providing the event type name of the return type for expression '" + ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "'"); } streamEventType = eventAdapterService.GetEventTypeByName(atom.OptionalResultEventType); if (streamEventType == null) { throw new ExprValidationException( "Event type by name '" + atom.OptionalResultEventType + "' could not be found"); } var returnType = evaluator.ReturnType; // when the expression returns an array, allow array values to become the column of the single-column event type if (returnType.IsArray && streamEventType.PropertyNames.Length == 1 && TypeHelper.IsSubclassOrImplementsInterface( TypeHelper.GetBoxedType(returnType.GetElementType()), TypeHelper.GetBoxedType(streamEventType.GetPropertyType(streamEventType.PropertyNames[0])))) { var writables = eventAdapterService.GetWriteableProperties(streamEventType, false); if (!writables.IsEmpty()) { try { EventBeanManufacturer manufacturer = EventAdapterServiceHelper.GetManufacturer( eventAdapterService, streamEventType, new WriteablePropertyDescriptor[] { writables.First() }, engineImportService, false, eventAdapterService.EventAdapterAvroHandler); containedEventEval = new ContainedEventEvalArrayToEvent(evaluator, manufacturer); } catch (EventBeanManufactureException e) { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' cannot be populated: " + e.Message, e); } } else { throw new ExprValidationException("Event type '" + streamEventType.Name + "' cannot be written to"); } } else if (returnType.IsArray() && returnType.GetElementType() == typeof(EventBean)) { containedEventEval = new ContainedEventEvalEventBeanArray(evaluator); } else { EventBeanFactory eventBeanFactory = EventAdapterServiceHelper.GetFactoryForType( streamEventType, eventAdapterService); // check expression result type against eventtype expected underlying type if (returnType.IsArray()) { if (!TypeHelper.IsSubclassOrImplementsInterface(returnType.GetElementType(), streamEventType.UnderlyingType)) { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' underlying type " + streamEventType.UnderlyingType.FullName + " cannot be assigned a value of type " + TypeHelper.GetTypeNameFullyQualPretty(returnType)); } } else if (GenericExtensions.IsGenericEnumerable(returnType) || returnType.IsImplementsInterface <IEnumerable>()) { // fine, assumed to return the right type } else { throw new ExprValidationException( "Return type of expression '" + ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "' is '" + returnType.FullName + "', expected an Iterable or array result"); } containedEventEval = new ContainedEventEvalExprNode(evaluator, eventBeanFactory); } expressionText = ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(validatedExprNode); fragmentEventType = new FragmentEventType(streamEventType, true, false); } // validate where clause, if any streamEventTypes.Add(streamEventType); streamNames.Add(atom.OptionalAsName); streamNameAndNumber.Put(atom.OptionalAsName, i + 1); expressionTexts.Add(expressionText); if (atom.OptionalWhereClause != null) { var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, engineURI, false); var validationContext = new ExprValidationContext( streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService, validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService, false, false, true, false, null, false); whereClauses[i] = ExprNodeUtility.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, atom.OptionalWhereClause, validationContext).ExprEvaluator; } // validate select clause if (atom.OptionalSelectClause != null) { var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, engineURI, false); var validationContext = new ExprValidationContext( streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService, validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService, false, false, true, false, null, false); foreach (var raw in atom.OptionalSelectClause.SelectExprList) { if (raw is SelectClauseStreamRawSpec) { var rawStreamSpec = (SelectClauseStreamRawSpec)raw; if (!streamNames.Contains(rawStreamSpec.StreamName)) { throw new ExprValidationException( "Property rename '" + rawStreamSpec.StreamName + "' not found in path"); } var streamSpec = new SelectClauseStreamCompiledSpec( rawStreamSpec.StreamName, rawStreamSpec.OptionalAsName); int streamNumber = streamNameAndNumber.Get(rawStreamSpec.StreamName); streamSpec.StreamNumber = streamNumber; cumulativeSelectClause.Add(streamSpec); } else if (raw is SelectClauseExprRawSpec) { var exprSpec = (SelectClauseExprRawSpec)raw; var exprCompiled = ExprNodeUtility.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, exprSpec.SelectExpression, validationContext); var resultName = exprSpec.OptionalAsName; if (resultName == null) { resultName = ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(exprCompiled); } cumulativeSelectClause.Add( new SelectClauseExprCompiledSpec( exprCompiled, resultName, exprSpec.OptionalAsName, exprSpec.IsEvents)); var isMinimal = ExprNodeUtility.IsMinimalExpression(exprCompiled); if (isMinimal != null) { throw new ExprValidationException( "Expression in a property-selection may not utilize " + isMinimal); } } else if (raw is SelectClauseElementWildcard) { // wildcards are stream selects: we assign a stream name (any) and add a stream wildcard select var streamNameAtom = atom.OptionalAsName; if (streamNameAtom == null) { streamNameAtom = UuidGenerator.Generate(); } var streamSpec = new SelectClauseStreamCompiledSpec(streamNameAtom, atom.OptionalAsName); var streamNumber = i + 1; streamSpec.StreamNumber = streamNumber; cumulativeSelectClause.Add(streamSpec); } else { throw new IllegalStateException("Unknown select clause item:" + raw); } } } currentEventType = fragmentEventType.FragmentType; fragmentEventTypes[i] = fragmentEventType; containedEventEvals[i] = containedEventEval; } if (cumulativeSelectClause.IsEmpty()) { if (length == 1) { return(new PropertyEvaluatorSimple( containedEventEvals[0], fragmentEventTypes[0], whereClauses[0], expressionTexts[0])); } else { return(new PropertyEvaluatorNested(containedEventEvals, fragmentEventTypes, whereClauses, expressionTexts)); } } else { var accumulative = new PropertyEvaluatorAccumulative( containedEventEvals, fragmentEventTypes, whereClauses, expressionTexts); var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, engineURI, false); var cumulativeSelectArr = cumulativeSelectClause.ToArray(); var selectExpr = SelectExprProcessorFactory.GetProcessor( assignedTypeNumberStack, cumulativeSelectArr, false, null, null, null, streamTypeService, eventAdapterService, null, null, null, engineImportService, validateContext, variableService, scriptingService, tableService, timeProvider, engineURI, statementId, statementName, annotations, null, configuration, null, namedWindowMgmtService, null, null, statementExtensionSvcContext); return(new PropertyEvaluatorSelect(selectExpr, accumulative)); } }
public override EPPreparedExecuteIUDSingleStreamExec GetExecutor(FilterSpecCompiled filter, string aliasName) { var selectNoWildcard = NamedWindowOnMergeHelper.CompileSelectNoWildcard(UuidGenerator.Generate(), StatementSpec.SelectClauseSpec.SelectExprList); StreamTypeService streamTypeService = new StreamTypeServiceImpl(StatementContext.EngineURI, true); var exprEvaluatorContextStatement = new ExprEvaluatorContextStatement(StatementContext, true); // assign names var validationContext = new ExprValidationContext( streamTypeService, StatementContext.EngineImportService, StatementContext.StatementExtensionServicesContext, null, StatementContext.TimeProvider, StatementContext.VariableService, StatementContext.TableService, exprEvaluatorContextStatement, StatementContext.EventAdapterService, StatementContext.StatementName, StatementContext.StatementId, StatementContext.Annotations, StatementContext.ContextDescriptor, StatementContext.ScriptingService, false, false, true, false, null, false); // determine whether column names are provided // if the "values" keyword was used, allow sequential automatic name assignment string[] assignedSequentialNames = null; if (StatementSpec.InsertIntoDesc.ColumnNames.IsEmpty()) { var insert = (FireAndForgetSpecInsert)StatementSpec.FireAndForgetSpec; if (insert.IsUseValuesKeyword) { assignedSequentialNames = Processor.EventTypePublic.PropertyNames; } } var count = -1; foreach (var compiled in StatementSpec.SelectClauseSpec.SelectExprList) { count++; if (compiled is SelectClauseExprCompiledSpec) { var expr = (SelectClauseExprCompiledSpec)compiled; ExprNode validatedExpression = ExprNodeUtility.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 = ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(expr.SelectExpression); } } else { expr.AssignedName = expr.ProvidedName; } } } } EventType optionalInsertIntoEventType = Processor.EventTypeResultSetProcessor; var selectExprEventTypeRegistry = new SelectExprEventTypeRegistry(StatementContext.StatementName, StatementContext.StatementEventTypeRef); var insertHelper = SelectExprProcessorFactory.GetProcessor( Collections.SingletonList(0), selectNoWildcard.ToArray(), false, StatementSpec.InsertIntoDesc, optionalInsertIntoEventType, null, streamTypeService, StatementContext.EventAdapterService, StatementContext.StatementResultService, StatementContext.ValueAddEventService, selectExprEventTypeRegistry, StatementContext.EngineImportService, exprEvaluatorContextStatement, StatementContext.VariableService, StatementContext.ScriptingService, StatementContext.TableService, StatementContext.TimeProvider, StatementContext.EngineURI, StatementContext.StatementId, StatementContext.StatementName, StatementContext.Annotations, StatementContext.ContextDescriptor, StatementContext.ConfigSnapshot, null, StatementContext.NamedWindowMgmtService, null, null, StatementContext.StatementExtensionServicesContext); return(new EPPreparedExecuteIUDSingleStreamExecInsert(exprEvaluatorContextStatement, insertHelper, StatementSpec.TableNodes, Services)); }
public static PropertyEvaluatorForge MakeEvaluator( PropertyEvalSpec spec, EventType sourceEventType, string optionalSourceStreamName, StatementRawInfo rawInfo, StatementCompileTimeServices services) { var length = spec.Atoms.Count; var containedEventForges = new ContainedEventEvalForge[length]; var fragmentEventTypes = new FragmentEventType[length]; var currentEventType = sourceEventType; var whereClauses = new ExprForge[length]; IList<EventType> streamEventTypes = new List<EventType>(); IList<string> streamNames = new List<string>(); IDictionary<string, int> streamNameAndNumber = new Dictionary<string, int>().WithNullKeySupport(); IList<string> expressionTexts = new List<string>(); streamEventTypes.Add(sourceEventType); streamNames.Add(optionalSourceStreamName); streamNameAndNumber.Put(optionalSourceStreamName, 0); expressionTexts.Add(sourceEventType.Name); IList<SelectClauseElementCompiled> cumulativeSelectClause = new List<SelectClauseElementCompiled>(); for (var i = 0; i < length; i++) { var atom = spec.Atoms[i]; ContainedEventEvalForge containedEventEval = null; string expressionText = null; EventType streamEventType = null; FragmentEventType fragmentEventType = null; // Resolve directly as fragment event type if possible if (atom.SplitterExpression is ExprIdentNode) { var propertyName = ((ExprIdentNode) atom.SplitterExpression).FullUnresolvedName; fragmentEventType = currentEventType.GetFragmentType(propertyName); if (fragmentEventType != null) { var getter = ((EventTypeSPI) currentEventType).GetGetterSPI(propertyName); if (getter != null) { containedEventEval = new ContainedEventEvalGetterForge(getter); expressionText = propertyName; streamEventType = fragmentEventType.FragmentType; } } } // evaluate splitter expression if (containedEventEval == null) { ExprNodeUtilityValidate.ValidatePlainExpression( ExprNodeOrigin.CONTAINEDEVENT, atom.SplitterExpression); var availableTypes = streamEventTypes.ToArray(); var availableStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( availableTypes, availableStreamNames, isIStreamOnly, false, false); var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services) .WithAllowBindingConsumption(true) .Build(); var validatedExprNode = ExprNodeUtilityValidate.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, atom.SplitterExpression, validationContext); // determine result type if (atom.OptionalResultEventType == null) { throw new ExprValidationException( "Missing @type(name) declaration providing the event type name of the return type for expression '" + ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "'"); } streamEventType = services.EventTypeCompileTimeResolver.GetTypeByName(atom.OptionalResultEventType); if (streamEventType == null) { throw new ExprValidationException( "Event type by name '" + atom.OptionalResultEventType + "' could not be found"); } var returnType = validatedExprNode.Forge.EvaluationType; // when the expression returns an array, allow array values to become the column of the single-column event type if (returnType.IsArray && streamEventType.PropertyNames.Length == 1 && !(streamEventType is JsonEventType) && // since json string-array should not become itself the property TypeHelper.IsSubclassOrImplementsInterface( returnType.GetElementType().GetBoxedType(), streamEventType.GetPropertyType(streamEventType.PropertyNames[0]).GetBoxedType())) { var writables = EventTypeUtility.GetWriteableProperties(streamEventType, false, false); if (writables != null && !writables.IsEmpty()) { try { var manufacturer = EventTypeUtility.GetManufacturer( streamEventType, new[] {writables.First()}, services.ImportServiceCompileTime, false, services.EventTypeAvroHandler); containedEventEval = new ContainedEventEvalArrayToEventForge( validatedExprNode.Forge, manufacturer); } catch (EventBeanManufactureException e) { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' cannot be populated: " + e.Message, e); } } else { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' cannot be written to"); } } else if (returnType.IsArray && returnType.GetElementType() == typeof(EventBean)) { containedEventEval = new ContainedEventEvalEventBeanArrayForge(validatedExprNode.Forge); } else { // check expression result type against eventtype expected underlying type if (returnType.IsArray) { if (!(streamEventType is JsonEventType)) { if (!TypeHelper.IsSubclassOrImplementsInterface( returnType.GetElementType(), streamEventType.UnderlyingType)) { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' underlying type " + streamEventType.UnderlyingType.CleanName() + " cannot be assigned a value of type " + returnType.CleanName()); } } else { if (returnType.GetElementType() != typeof(string)) { throw new ExprValidationException( "Event type '" + streamEventType.Name + "' requires string-type array and cannot be assigned from value of type " + returnType.CleanName()); } } } else if (GenericExtensions.IsGenericEnumerable(returnType) || TypeHelper.IsImplementsInterface<System.Collections.IEnumerable>(returnType)) { // fine, assumed to return the right type } else { throw new ExprValidationException( "Return type of expression '" + ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "' is '" + returnType.Name + "', expected an Iterable or array result"); } containedEventEval = new ContainedEventEvalExprNodeForge( validatedExprNode.Forge, streamEventType); } expressionText = ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(validatedExprNode); fragmentEventType = new FragmentEventType(streamEventType, true, false); } // validate where clause, if any streamEventTypes.Add(streamEventType); streamNames.Add(atom.OptionalAsName); streamNameAndNumber.Put(atom.OptionalAsName, i + 1); expressionTexts.Add(expressionText); if (atom.OptionalWhereClause != null) { var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, false, false); var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services) .WithAllowBindingConsumption(true) .Build(); var whereClause = ExprNodeUtilityValidate.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, atom.OptionalWhereClause, validationContext); whereClauses[i] = whereClause.Forge; } // validate select clause if (atom.OptionalSelectClause != null && !atom.OptionalSelectClause.SelectExprList.IsEmpty()) { var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, false, false); var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services) .WithAllowBindingConsumption(true) .Build(); foreach (var raw in atom.OptionalSelectClause.SelectExprList) { if (raw is SelectClauseStreamRawSpec) { var rawStreamSpec = (SelectClauseStreamRawSpec) raw; if (!streamNames.Contains(rawStreamSpec.StreamName)) { throw new ExprValidationException( "Property rename '" + rawStreamSpec.StreamName + "' not found in path"); } var streamSpec = new SelectClauseStreamCompiledSpec( rawStreamSpec.StreamName, rawStreamSpec.OptionalAsName); var streamNumber = streamNameAndNumber.Get(rawStreamSpec.StreamName); streamSpec.StreamNumber = streamNumber; cumulativeSelectClause.Add(streamSpec); } else if (raw is SelectClauseExprRawSpec) { var exprSpec = (SelectClauseExprRawSpec) raw; var exprCompiled = ExprNodeUtilityValidate.GetValidatedSubtree( ExprNodeOrigin.CONTAINEDEVENT, exprSpec.SelectExpression, validationContext); var resultName = exprSpec.OptionalAsName; if (resultName == null) { resultName = ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(exprCompiled); } cumulativeSelectClause.Add( new SelectClauseExprCompiledSpec( exprCompiled, resultName, exprSpec.OptionalAsName, exprSpec.IsEvents)); var isMinimal = ExprNodeUtilityValidate.IsMinimalExpression(exprCompiled); if (isMinimal != null) { throw new ExprValidationException( "Expression in a property-selection may not utilize " + isMinimal); } } else if (raw is SelectClauseElementWildcard) { // wildcards are stream selects: we assign a stream name (any) and add a stream wildcard select var streamNameAtom = atom.OptionalAsName; if (streamNameAtom == null) { streamNameAtom = UuidGenerator.Generate(); } var streamSpec = new SelectClauseStreamCompiledSpec(streamNameAtom, atom.OptionalAsName); var streamNumber = i + 1; streamSpec.StreamNumber = streamNumber; cumulativeSelectClause.Add(streamSpec); } else { throw new IllegalStateException("Unknown select clause item:" + raw); } } } currentEventType = fragmentEventType.FragmentType; fragmentEventTypes[i] = fragmentEventType; containedEventForges[i] = containedEventEval; } if (cumulativeSelectClause.IsEmpty()) { if (length == 1) { return new PropertyEvaluatorSimpleForge( containedEventForges[0], fragmentEventTypes[0], whereClauses[0], expressionTexts[0]); } return new PropertyEvaluatorNestedForge( containedEventForges, fragmentEventTypes, whereClauses, expressionTexts.ToArray()); } { var fragmentEventTypeIsIndexed = new bool[fragmentEventTypes.Length]; for (var i = 0; i < fragmentEventTypes.Length; i++) { fragmentEventTypeIsIndexed[i] = fragmentEventTypes[i].IsIndexed; } var accumulative = new PropertyEvaluatorAccumulativeForge( containedEventForges, fragmentEventTypeIsIndexed, whereClauses, expressionTexts); var whereTypes = streamEventTypes.ToArray(); var whereStreamNames = streamNames.ToArray(); var isIStreamOnly = new bool[streamNames.Count]; isIStreamOnly.Fill(true); StreamTypeService streamTypeService = new StreamTypeServiceImpl( whereTypes, whereStreamNames, isIStreamOnly, false, false); var cumulativeSelectArr = cumulativeSelectClause.ToArray(); var args = new SelectProcessorArgs( cumulativeSelectArr, null, false, null, null, streamTypeService, null, false, rawInfo.Annotations, rawInfo, services); var selectExprDesc = SelectExprProcessorFactory.GetProcessor(args, null, false); return new PropertyEvaluatorSelectForge(selectExprDesc, accumulative); } }
private InfraOnMergeActionInsForge SetupInsert( string infraName, EventType infraType, OnTriggerMergeActionInsert desc, EventType triggeringEventType, string triggeringStreamName, StatementRawInfo statementRawInfo, StatementCompileTimeServices services, bool isTable) { // Compile insert-into info var streamName = desc.OptionalStreamName != null ? desc.OptionalStreamName : infraName; InsertIntoDesc insertIntoDesc = InsertIntoDesc.FromColumns(streamName, desc.Columns); // rewrite any wildcards to use "stream.wildcard" if (triggeringStreamName == null) { triggeringStreamName = UuidGenerator.Generate(); } var selectNoWildcard = CompileSelectNoWildcard(triggeringStreamName, desc.SelectClauseCompiled); // Set up event types for select-clause evaluation: The first type does not contain anything as its the named-window or table row which is not present for insert var eventTypeMetadata = new EventTypeMetadata( "merge_infra_insert", statementRawInfo.ModuleName, EventTypeTypeClass.STREAM, EventTypeApplicationType.MAP, NameAccessModifier.TRANSIENT, EventTypeBusModifier.NONBUS, false, EventTypeIdPair.Unassigned()); EventType dummyTypeNoProperties = BaseNestableEventUtil.MakeMapTypeCompileTime( eventTypeMetadata, Collections.GetEmptyMap<string, object>(), null, null, null, null, services.BeanEventTypeFactoryPrivate, services.EventTypeCompileTimeResolver); var eventTypes = new EventType[] {dummyTypeNoProperties, triggeringEventType}; var streamNames = new string[] {UuidGenerator.Generate(), triggeringStreamName}; StreamTypeService streamTypeService = new StreamTypeServiceImpl( eventTypes, streamNames, new bool[eventTypes.Length], false, false); // Get select expr processor var selectClause = selectNoWildcard.ToArray(); var args = new SelectProcessorArgs( selectClause, null, false, null, null, streamTypeService, null, false, statementRawInfo.Annotations, statementRawInfo, services); if (isTable && streamName.Equals(infraName)) { args.OptionalInsertIntoEventType = infraType; } SelectExprProcessorForge insertHelperForge = SelectExprProcessorFactory.GetProcessor(args, insertIntoDesc, false).Forge; ExprNode filterEval = desc.OptionalWhereClause; var route = !streamName.Equals(infraName); bool audit = AuditEnum.INSERT.GetAudit(statementRawInfo.Annotations) != null; TableMetaData insertIntoTable = services.TableCompileTimeResolver.Resolve(insertIntoDesc.EventTypeName); return new InfraOnMergeActionInsForge(filterEval, insertHelperForge, insertIntoTable, audit, route); }
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; }