Package com.espertech.esper.core.service

Examples of com.espertech.esper.core.service.ExprEvaluatorContextStatement

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        {
            ViewFactorySupport.assertReturnsNonConstant(NAME, validated[i], i);
        }

        // get sort size
        ExprEvaluatorContextStatement exprEvaluatorContext = new ExprEvaluatorContextStatement(statementContext);
        Object sortSize = ViewFactorySupport.evaluateAssertNoProperties(NAME, validated[indexNumericSize], indexNumericSize, exprEvaluatorContext);
        if ((sortSize == null) || (!(sortSize instanceof Number)))
        {
            throw new ViewParameterException(message);
        }
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    private ExprNode validateMeasureClause(ExprNode measureNode, StreamTypeService typeServiceMeasure, Set<String> variablesMultiple, Set<String> variablesSingle, StatementContext statementContext)
            throws ExprValidationException
    {
        try
        {
            ExprEvaluatorContextStatement exprEvaluatorContext = new ExprEvaluatorContextStatement(statementContext);
            ExprValidationContext validationContext = new ExprValidationContext(typeServiceMeasure, statementContext.getMethodResolutionService(), null, statementContext.getSchedulingService(), statementContext.getVariableService(), exprEvaluatorContext, statementContext.getEventAdapterService(), statementContext.getStatementName(), statementContext.getStatementId(), statementContext.getAnnotations(), statementContext.getContextDescriptor());
            return ExprNodeUtility.getValidatedSubtree(measureNode, validationContext);
        }
        catch (ExprValidationPropertyException e)
        {
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        timestampExpression = validated[0];
        timestampExpressionEval = timestampExpression.getExprEvaluator();

        // validate second: window size
        ViewFactorySupport.assertReturnsNonConstant(windowName, validated[0], 0);
        Object parameter = ViewFactorySupport.evaluateAssertNoProperties(windowName, validated[1], 1, new ExprEvaluatorContextStatement(statementContext));
        if (!(parameter instanceof Number))
        {
            throw new ViewParameterException(errorMessage);
        }
        else
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        // determine aggregation nodes, if any
        List<ExprAggregateNode> aggregateNodes = new ArrayList<ExprAggregateNode>();
        ExprAggregateNodeUtil.getAggregatesBottomUp(expiryExpression, aggregateNodes);
        if (!aggregateNodes.isEmpty()) {
            try {
                aggregationServiceFactoryDesc = AggregationServiceFactoryFactory.getService(Collections.<ExprAggregateNode>emptyList(), aggregateNodes, Collections.<ExprAggregateNode>emptyList(), false, new ExprEvaluatorContextStatement(statementContext), statementContext.getAnnotations(), statementContext.getVariableService(), false, null, null, AggregationServiceFactoryServiceImpl.DEFAULT_FACTORY, streamTypeService.getEventTypes());
            }
            catch (ExprValidationException ex) {
                throw new ViewParameterException(ex.getMessage(), ex);
            }
        }
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            throw new ViewParameterException(errorMessage);
        }
        expiryExpression = expressionParameters.get(0);

        if (expressionParameters.size() > 1) {
            Object result = ViewFactorySupport.evaluateAssertNoProperties("expression batch window", expressionParameters.get(1), 1, new ExprEvaluatorContextStatement(viewFactoryContext.getStatementContext()));
            includeTriggeringEvent = (Boolean) result;
        }
    }
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        }
        timestampExpression = validated[0];
        timestampExpressionEval = timestampExpression.getExprEvaluator();

        ViewFactorySupport.assertReturnsNonConstant("Externally-timed window", validated[0], 0);
        Object parameter = ViewFactorySupport.evaluateAssertNoProperties("Externally-timed window", validated[1], 1, new ExprEvaluatorContextStatement(statementContext));
        if (!(parameter instanceof Number))
        {
            throw new ViewParameterException(errorMessage);
        }
        else
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        boolean[] isNamedWindow = new boolean[numStreams];
        HistoricalEventViewable[] historicalEventViewables = new HistoricalEventViewable[numStreams];

        // verify for joins that required views are present
        StreamJoinAnalysisResult joinAnalysisResult = verifyJoinViews(statementSpec, statementContext.getNamedWindowService(), defaultAgentInstanceContext);
        final ExprEvaluatorContextStatement evaluatorContextStmt = new ExprEvaluatorContextStatement(statementContext);

        for (int i = 0; i < statementSpec.getStreamSpecs().length; i++)
        {
            StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs()[i];
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        Object value = null;
        if (createDesc.getAssignment() != null)
        {
            // Evaluate assignment expression
            StreamTypeService typeService = new StreamTypeServiceImpl(new EventType[0], new String[0], new boolean[0], services.getEngineURI(), false);
            ExprEvaluatorContextStatement evaluatorContextStmt = new ExprEvaluatorContextStatement(statementContext);
            ExprValidationContext validationContext = new ExprValidationContext(typeService, statementContext.getMethodResolutionService(), null, statementContext.getSchedulingService(), statementContext.getVariableService(), evaluatorContextStmt, statementContext.getEventAdapterService(), statementContext.getStatementName(), statementContext.getStatementId(), statementContext.getAnnotations(), statementContext.getContextDescriptor(), false, false);
            ExprNode validated = ExprNodeUtility.getValidatedSubtree(ExprNodeOrigin.VARIABLEASSIGN, createDesc.getAssignment(), validationContext);
            value = validated.getExprEvaluator().evaluate(null, true, evaluatorContextStmt);
        }
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        // determine type service for use with DEFINE
        // validate each DEFINE clause expression
        Set<String> definedVariables = new HashSet<String>();
        List<ExprAggregateNode> aggregateNodes = new ArrayList<ExprAggregateNode>();
        ExprEvaluatorContextStatement exprEvaluatorContext = new ExprEvaluatorContextStatement(statementContext);
        this.isExprRequiresMultimatchState = new boolean[variableStreams.size()];

        for (int defineIndex = 0; defineIndex < matchRecognizeSpec.getDefines().size(); defineIndex++)
        {
            MatchRecognizeDefineItem defineItem = matchRecognizeSpec.getDefines().get(defineIndex);
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    private ExprNode validateMeasureClause(ExprNode measureNode, StreamTypeService typeServiceMeasure, Set<String> variablesMultiple, Set<String> variablesSingle, StatementContext statementContext)
            throws ExprValidationException
    {
        try
        {
            ExprEvaluatorContextStatement exprEvaluatorContext = new ExprEvaluatorContextStatement(statementContext);
            ExprValidationContext validationContext = new ExprValidationContext(typeServiceMeasure, statementContext.getMethodResolutionService(), null, statementContext.getSchedulingService(), statementContext.getVariableService(), exprEvaluatorContext, statementContext.getEventAdapterService(), statementContext.getStatementName(), statementContext.getStatementId(), statementContext.getAnnotations(), statementContext.getContextDescriptor(), false, false);
            return ExprNodeUtility.getValidatedSubtree(ExprNodeOrigin.MATCHRECOGMEASURE, measureNode, validationContext);
        }
        catch (ExprValidationPropertyException e)
        {
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