Examples with In io.siddhi.query.api.expression.condition.In used on opensource projects

Example 1 with In

use of io.siddhi.query.api.expression.condition.In in project siddhi by wso2.

the class SiddhiAppParser method getFindExecutedElements.

private static List<String> getFindExecutedElements(SiddhiApp siddhiApp) {
    List<String> findExecutedElements = new ArrayList<>();
    for (ExecutionElement executionElement : siddhiApp.getExecutionElementList()) {
        if (executionElement instanceof Query) {
            List<StreamHandler> streamHandlers = new ArrayList<>();
            if (((Query) executionElement).getInputStream() instanceof JoinInputStream) {
                findExecutedElements.addAll(((Query) executionElement).getInputStream().getAllStreamIds());
                streamHandlers.addAll(((SingleInputStream) ((JoinInputStream) ((Query) executionElement).getInputStream()).getLeftInputStream()).getStreamHandlers());
                streamHandlers.addAll(((SingleInputStream) ((JoinInputStream) ((Query) executionElement).getInputStream()).getRightInputStream()).getStreamHandlers());
            } else if (((Query) executionElement).getInputStream() instanceof SingleInputStream) {
                streamHandlers.addAll(((SingleInputStream) ((Query) executionElement).getInputStream()).getStreamHandlers());
            } else if (((Query) executionElement).getInputStream() instanceof StateInputStream) {
                streamHandlers.addAll((((StateInputStream) ((Query) executionElement).getInputStream()).getStreamHandlers()));
            }
            for (StreamHandler streamHandler : streamHandlers) {
                if (streamHandler instanceof In) {
                    findExecutedElements.add(((In) streamHandler).getSourceId());
                }
            }
        } else {
            List<Query> queries = ((Partition) executionElement).getQueryList();
            for (Query query : queries) {
                List<StreamHandler> streamHandlers = new ArrayList<>();
                if (query.getInputStream() instanceof JoinInputStream) {
                    findExecutedElements.addAll(query.getInputStream().getAllStreamIds());
                    streamHandlers.addAll(((SingleInputStream) ((JoinInputStream) query.getInputStream()).getLeftInputStream()).getStreamHandlers());
                    streamHandlers.addAll(((SingleInputStream) ((JoinInputStream) query.getInputStream()).getRightInputStream()).getStreamHandlers());
                } else if (query.getInputStream() instanceof SingleInputStream) {
                    streamHandlers.addAll(((SingleInputStream) query.getInputStream()).getStreamHandlers());
                } else if (query.getInputStream() instanceof StateInputStream) {
                    streamHandlers.addAll((((StateInputStream) query.getInputStream()).getStreamHandlers()));
                }
                for (StreamHandler streamHandler : streamHandlers) {
                    if (streamHandler instanceof In) {
                        findExecutedElements.add(((In) streamHandler).getSourceId());
                    }
                }
            }
        }
    }
    return findExecutedElements;
}

Example 2 with In

use of io.siddhi.query.api.expression.condition.In in project siddhi by wso2.

the class AggregationExpressionBuilder method build.

private void build(Expression expression, AggregationExpressionVisitor expressionVisitor) {
    if (expression instanceof And) {
        build(((And) expression).getLeftExpression(), expressionVisitor);
        build(((And) expression).getRightExpression(), expressionVisitor);
        expressionVisitor.endVisitAnd();
    } else if (expression instanceof Or) {
        build(((Or) expression).getLeftExpression(), expressionVisitor);
        build(((Or) expression).getRightExpression(), expressionVisitor);
        expressionVisitor.endVisitOr();
    } else if (expression instanceof Not) {
        build(((Not) expression).getExpression(), expressionVisitor);
        expressionVisitor.endVisitNot();
    } else if (expression instanceof Compare) {
        build(((Compare) expression).getLeftExpression(), expressionVisitor);
        build(((Compare) expression).getRightExpression(), expressionVisitor);
        expressionVisitor.endVisitCompare(((Compare) expression).getOperator());
    } else if (expression instanceof Constant) {
        expressionVisitor.addConstantExpression(expression);
    } else if (expression instanceof Variable) {
        expressionVisitor.addVariableExpression(expression);
    } else if (expression instanceof IsNull) {
        IsNull isNull = (IsNull) expression;
        if (isNull.getExpression() != null) {
            build(((IsNull) expression).getExpression(), expressionVisitor);
            expressionVisitor.endVisitIsNull(null);
        }
    } else if (expression instanceof AttributeFunction) {
        Expression[] expressions = ((AttributeFunction) expression).getParameters();
        for (Expression value : expressions) {
            build(value, expressionVisitor);
        }
        expressionVisitor.endVisitAttributeFunction(((AttributeFunction) expression).getNamespace(), ((AttributeFunction) expression).getName(), expressions.length);
    } else if (expression instanceof Add) {
        build(((Add) expression).getLeftValue(), expressionVisitor);
        build(((Add) expression).getRightValue(), expressionVisitor);
        expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.ADD);
    } else if (expression instanceof Subtract) {
        build(((Subtract) expression).getLeftValue(), expressionVisitor);
        build(((Subtract) expression).getRightValue(), expressionVisitor);
        expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.SUBTRACT);
    } else if (expression instanceof Divide) {
        build(((Divide) expression).getLeftValue(), expressionVisitor);
        build(((Divide) expression).getRightValue(), expressionVisitor);
        expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.DIVIDE);
    } else if (expression instanceof Multiply) {
        build(((Multiply) expression).getLeftValue(), expressionVisitor);
        build(((Multiply) expression).getRightValue(), expressionVisitor);
        expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.MULTIPLY);
    } else if (expression instanceof Mod) {
        build(((Mod) expression).getLeftValue(), expressionVisitor);
        build(((Mod) expression).getRightValue(), expressionVisitor);
        expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.MOD);
    } else if (expression instanceof In) {
        build(((In) expression).getExpression(), expressionVisitor);
        expressionVisitor.endVisitIn(((In) expression).getSourceId());
    }
}

Example 3 with In

use of io.siddhi.query.api.expression.condition.In in project siddhi by wso2.

the class ExpressionBuilder method buildVariableExecutors.

private void buildVariableExecutors(Expression expression, ExpressionVisitor expressionVisitor) {
    try {
        if (expression instanceof And) {
            expressionVisitor.beginVisitAnd();
            expressionVisitor.beginVisitAndLeftOperand();
            buildVariableExecutors(((And) expression).getLeftExpression(), expressionVisitor);
            expressionVisitor.endVisitAndLeftOperand();
            expressionVisitor.beginVisitAndRightOperand();
            buildVariableExecutors(((And) expression).getRightExpression(), expressionVisitor);
            expressionVisitor.endVisitAndRightOperand();
            expressionVisitor.endVisitAnd();
        } else if (expression instanceof Or) {
            expressionVisitor.beginVisitOr();
            expressionVisitor.beginVisitOrLeftOperand();
            buildVariableExecutors(((Or) expression).getLeftExpression(), expressionVisitor);
            expressionVisitor.endVisitOrLeftOperand();
            expressionVisitor.beginVisitOrRightOperand();
            buildVariableExecutors(((Or) expression).getRightExpression(), expressionVisitor);
            expressionVisitor.endVisitOrRightOperand();
            expressionVisitor.endVisitOr();
        } else if (expression instanceof Not) {
            expressionVisitor.beginVisitNot();
            buildVariableExecutors(((Not) expression).getExpression(), expressionVisitor);
            expressionVisitor.endVisitNot();
        } else if (expression instanceof Compare) {
            expressionVisitor.beginVisitCompare(((Compare) expression).getOperator());
            expressionVisitor.beginVisitCompareLeftOperand(((Compare) expression).getOperator());
            buildVariableExecutors(((Compare) expression).getLeftExpression(), expressionVisitor);
            expressionVisitor.endVisitCompareLeftOperand(((Compare) expression).getOperator());
            expressionVisitor.beginVisitCompareRightOperand(((Compare) expression).getOperator());
            buildVariableExecutors(((Compare) expression).getRightExpression(), expressionVisitor);
            expressionVisitor.endVisitCompareRightOperand(((Compare) expression).getOperator());
            expressionVisitor.endVisitCompare(((Compare) expression).getOperator());
        } else if (expression instanceof Add) {
            expressionVisitor.beginVisitMath(ExpressionVisitor.MathOperator.ADD);
            expressionVisitor.beginVisitMathLeftOperand(ExpressionVisitor.MathOperator.ADD);
            buildVariableExecutors(((Add) expression).getLeftValue(), expressionVisitor);
            expressionVisitor.endVisitMathLeftOperand(ExpressionVisitor.MathOperator.ADD);
            expressionVisitor.beginVisitMathRightOperand(ExpressionVisitor.MathOperator.ADD);
            buildVariableExecutors(((Add) expression).getRightValue(), expressionVisitor);
            expressionVisitor.endVisitMathRightOperand(ExpressionVisitor.MathOperator.ADD);
            expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.ADD);
        } else if (expression instanceof Subtract) {
            expressionVisitor.beginVisitMath(ExpressionVisitor.MathOperator.SUBTRACT);
            expressionVisitor.beginVisitMathLeftOperand(ExpressionVisitor.MathOperator.SUBTRACT);
            buildVariableExecutors(((Subtract) expression).getLeftValue(), expressionVisitor);
            expressionVisitor.endVisitMathLeftOperand(ExpressionVisitor.MathOperator.SUBTRACT);
            expressionVisitor.beginVisitMathRightOperand(ExpressionVisitor.MathOperator.SUBTRACT);
            buildVariableExecutors(((Subtract) expression).getRightValue(), expressionVisitor);
            expressionVisitor.endVisitMathRightOperand(ExpressionVisitor.MathOperator.SUBTRACT);
            expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.SUBTRACT);
        } else if (expression instanceof Divide) {
            expressionVisitor.beginVisitMath(ExpressionVisitor.MathOperator.DIVIDE);
            expressionVisitor.beginVisitMathLeftOperand(ExpressionVisitor.MathOperator.DIVIDE);
            buildVariableExecutors(((Divide) expression).getLeftValue(), expressionVisitor);
            expressionVisitor.endVisitMathLeftOperand(ExpressionVisitor.MathOperator.DIVIDE);
            expressionVisitor.beginVisitMathRightOperand(ExpressionVisitor.MathOperator.DIVIDE);
            buildVariableExecutors(((Divide) expression).getRightValue(), expressionVisitor);
            expressionVisitor.endVisitMathRightOperand(ExpressionVisitor.MathOperator.DIVIDE);
            expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.DIVIDE);
        } else if (expression instanceof Multiply) {
            expressionVisitor.beginVisitMath(ExpressionVisitor.MathOperator.MULTIPLY);
            expressionVisitor.beginVisitMathLeftOperand(ExpressionVisitor.MathOperator.MULTIPLY);
            buildVariableExecutors(((Multiply) expression).getLeftValue(), expressionVisitor);
            expressionVisitor.endVisitMathLeftOperand(ExpressionVisitor.MathOperator.MULTIPLY);
            expressionVisitor.beginVisitMathRightOperand(ExpressionVisitor.MathOperator.MULTIPLY);
            buildVariableExecutors(((Multiply) expression).getRightValue(), expressionVisitor);
            expressionVisitor.endVisitMathRightOperand(ExpressionVisitor.MathOperator.MULTIPLY);
            expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.MULTIPLY);
        } else if (expression instanceof Mod) {
            expressionVisitor.beginVisitMath(ExpressionVisitor.MathOperator.MOD);
            expressionVisitor.beginVisitMathLeftOperand(ExpressionVisitor.MathOperator.MOD);
            buildVariableExecutors(((Mod) expression).getLeftValue(), expressionVisitor);
            expressionVisitor.endVisitMathLeftOperand(ExpressionVisitor.MathOperator.MOD);
            expressionVisitor.beginVisitMathRightOperand(ExpressionVisitor.MathOperator.MOD);
            buildVariableExecutors(((Mod) expression).getRightValue(), expressionVisitor);
            expressionVisitor.endVisitMathRightOperand(ExpressionVisitor.MathOperator.MOD);
            expressionVisitor.endVisitMath(ExpressionVisitor.MathOperator.MOD);
        } else if (expression instanceof IsNull) {
            IsNull isNull = (IsNull) expression;
            if (isNull.getExpression() != null) {
                expressionVisitor.beginVisitIsNull(null);
                buildVariableExecutors(((IsNull) expression).getExpression(), expressionVisitor);
                expressionVisitor.endVisitIsNull(null);
            } else {
                String streamId = isNull.getStreamId();
                MetaStateEvent metaStateEvent = matchingMetaInfoHolder.getMetaStateEvent();
                if (streamId == null) {
                    throw new SiddhiAppCreationException("IsNull does not support streamId being null");
                } else {
                    AbstractDefinition definitionOutput = null;
                    MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
                    for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
                        MetaStreamEvent metaStreamEvent = metaStreamEvents[i];
                        AbstractDefinition definition = metaStreamEvent.getLastInputDefinition();
                        if (metaStreamEvent.getInputReferenceId() == null) {
                            if (definition.getId().equals(streamId)) {
                                definitionOutput = definition;
                                break;
                            }
                        } else {
                            if (metaStreamEvent.getInputReferenceId().equals(streamId)) {
                                definitionOutput = definition;
                                break;
                            }
                        }
                    }
                    if (definitionOutput != null) {
                        expressionVisitor.beginVisitIsNull(definitionOutput.getId());
                        expressionVisitor.endVisitIsNull(definitionOutput.getId());
                    } else {
                        expressionVisitor.beginVisitIsNull(null);
                        expressionVisitor.endVisitIsNull(null);
                    }
                }
            }
        } else if (expression instanceof In) {
            expressionVisitor.beginVisitIn(((In) expression).getSourceId());
            buildVariableExecutors(((In) expression).getExpression(), expressionVisitor);
            expressionVisitor.endVisitIn(((In) expression).getSourceId());
        } else if (expression instanceof Constant) {
            if (expression instanceof DoubleConstant) {
                expressionVisitor.beginVisitConstant(((DoubleConstant) expression).getValue(), Attribute.Type.DOUBLE);
                expressionVisitor.endVisitConstant(((DoubleConstant) expression).getValue(), Attribute.Type.DOUBLE);
            } else if (expression instanceof StringConstant) {
                expressionVisitor.beginVisitConstant(((StringConstant) expression).getValue(), Attribute.Type.STRING);
                expressionVisitor.endVisitConstant(((StringConstant) expression).getValue(), Attribute.Type.STRING);
            } else if (expression instanceof IntConstant) {
                expressionVisitor.beginVisitConstant(((IntConstant) expression).getValue(), Attribute.Type.INT);
                expressionVisitor.endVisitConstant(((IntConstant) expression).getValue(), Attribute.Type.INT);
            } else if (expression instanceof BoolConstant) {
                expressionVisitor.beginVisitConstant(((BoolConstant) expression).getValue(), Attribute.Type.BOOL);
                expressionVisitor.endVisitConstant(((BoolConstant) expression).getValue(), Attribute.Type.BOOL);
            } else if (expression instanceof FloatConstant) {
                expressionVisitor.beginVisitConstant(((FloatConstant) expression).getValue(), Attribute.Type.FLOAT);
                expressionVisitor.endVisitConstant(((FloatConstant) expression).getValue(), Attribute.Type.FLOAT);
            } else if (expression instanceof LongConstant) {
                expressionVisitor.beginVisitConstant(((LongConstant) expression).getValue(), Attribute.Type.LONG);
                expressionVisitor.endVisitConstant(((LongConstant) expression).getValue(), Attribute.Type.LONG);
            } else {
                throw new OperationNotSupportedException("No constant exist with type " + expression.getClass().getName());
            }
        } else if (expression instanceof AttributeFunction) {
            expressionVisitor.beginVisitAttributeFunction(((AttributeFunction) expression).getNamespace(), ((AttributeFunction) expression).getName());
            Expression[] expressions = ((AttributeFunction) expression).getParameters();
            if (expressions != null) {
                for (int i = 0; i < expressions.length; i++) {
                    expressionVisitor.beginVisitParameterAttributeFunction(i);
                    buildVariableExecutors(expressions[i], expressionVisitor);
                    expressionVisitor.endVisitParameterAttributeFunction(i);
                }
            }
            expressionVisitor.endVisitAttributeFunction(((AttributeFunction) expression).getNamespace(), ((AttributeFunction) expression).getName());
        } else if (expression instanceof Variable) {
            Variable variable = ((Variable) expression);
            String attributeName = variable.getAttributeName();
            AbstractDefinition definition;
            Attribute.Type type = null;
            int streamEventChainIndex = matchingMetaInfoHolder.getCurrentState();
            if (variable.getStreamId() == null) {
                MetaStreamEvent[] metaStreamEvents = matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvents();
                if (streamEventChainIndex == UNKNOWN_STATE) {
                    String firstInput = null;
                    for (int i = 0; i < metaStreamEvents.length; i++) {
                        MetaStreamEvent metaStreamEvent = metaStreamEvents[i];
                        definition = metaStreamEvent.getLastInputDefinition();
                        if (type == null) {
                            try {
                                type = definition.getAttributeType(attributeName);
                                firstInput = "Input Stream: " + definition.getId() + " with " + "reference: " + metaStreamEvent.getInputReferenceId();
                                streamEventChainIndex = i;
                            } catch (AttributeNotExistException e) {
                            // do nothing
                            }
                        } else {
                            try {
                                definition.getAttributeType(attributeName);
                                throw new SiddhiAppValidationException(firstInput + " and Input Stream: " + definition.getId() + " with " + "reference: " + metaStreamEvent.getInputReferenceId() + " contains attribute " + "with same" + " name '" + attributeName + "'");
                            } catch (AttributeNotExistException e) {
                            // do nothing as its expected
                            }
                        }
                    }
                    if (streamEventChainIndex != UNKNOWN_STATE) {
                        if (matchingMetaInfoHolder.getMatchingStreamEventIndex() == streamEventChainIndex) {
                            buildStreamVariableExecutor(variable, streamEventChainIndex, expressionVisitor, type);
                        } else {
                            buildStoreVariableExecutor(variable, expressionVisitor, type, matchingMetaInfoHolder.getStoreDefinition());
                        }
                    } else {
                        // Having state : i.e attribute is in the select clause
                        definition = matchingMetaInfoHolder.getMetaStateEvent().getOutputStreamDefinition();
                        try {
                            type = definition.getAttributeType(attributeName);
                            buildStoreVariableExecutor(variable, expressionVisitor, type, matchingMetaInfoHolder.getStoreDefinition());
                        } catch (AttributeNotExistException e) {
                        // do nothing as its not expected
                        }
                    }
                } else {
                    MetaStreamEvent metaStreamEvent = matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvent(matchingMetaInfoHolder.getCurrentState());
                    definition = metaStreamEvent.getLastInputDefinition();
                    try {
                        type = definition.getAttributeType(attributeName);
                    } catch (AttributeNotExistException e) {
                        // Having state : i.e attribute is in the select clause
                        definition = matchingMetaInfoHolder.getMetaStateEvent().getOutputStreamDefinition();
                        try {
                            type = definition.getAttributeType(attributeName);
                            buildStoreVariableExecutor(variable, expressionVisitor, type, matchingMetaInfoHolder.getStoreDefinition());
                        } catch (AttributeNotExistException e1) {
                            throw new SiddhiAppValidationException(e1.getMessageWithOutContext() + " Input Stream: " + definition.getId() + " with " + "reference: " + metaStreamEvent.getInputReferenceId(), e1.getQueryContextStartIndex(), e1.getQueryContextEndIndex(), siddhiQueryContext.getSiddhiAppContext().getName(), siddhiQueryContext.getSiddhiAppContext().getSiddhiAppString());
                        }
                    }
                    if (matchingMetaInfoHolder.getCurrentState() == matchingMetaInfoHolder.getMatchingStreamEventIndex()) {
                        buildStreamVariableExecutor(variable, streamEventChainIndex, expressionVisitor, type);
                    } else {
                        buildStoreVariableExecutor(variable, expressionVisitor, type, matchingMetaInfoHolder.getStoreDefinition());
                    }
                }
            } else {
                MetaStreamEvent[] metaStreamEvents = matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvents();
                for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
                    MetaStreamEvent metaStreamEvent = metaStreamEvents[i];
                    definition = metaStreamEvent.getLastInputDefinition();
                    if (metaStreamEvent.getInputReferenceId() == null) {
                        if (definition.getId().equals(variable.getStreamId())) {
                            type = definition.getAttributeType(attributeName);
                            streamEventChainIndex = i;
                            break;
                        }
                    } else {
                        if (metaStreamEvent.getInputReferenceId().equals(variable.getStreamId())) {
                            type = definition.getAttributeType(attributeName);
                            streamEventChainIndex = i;
                            break;
                        }
                    }
                }
                if (matchingMetaInfoHolder.getMatchingStreamEventIndex() == streamEventChainIndex) {
                    buildStreamVariableExecutor(variable, streamEventChainIndex, expressionVisitor, type);
                } else {
                    buildStoreVariableExecutor(variable, expressionVisitor, type, matchingMetaInfoHolder.getStoreDefinition());
                }
            }
        }
    } catch (Throwable t) {
        ExceptionUtil.populateQueryContext(t, expression, siddhiQueryContext.getSiddhiAppContext(), siddhiQueryContext);
        throw t;
    }
}

Example 4 with In

use of io.siddhi.query.api.expression.condition.In in project siddhi by wso2.

the class CollectionExpressionParser method parseInternalCollectionExpression.

/**
 * Parse the given expression and create the appropriate Executor by recursively traversing the expression.
 *
 * @param expression             Expression to be parsed
 * @param matchingMetaInfoHolder matchingMetaInfoHolder
 * @param indexedEventHolder     indexed event holder
 * @return ExpressionExecutor
 */
private static CollectionExpression parseInternalCollectionExpression(Expression expression, MatchingMetaInfoHolder matchingMetaInfoHolder, IndexedEventHolder indexedEventHolder) {
    if (expression instanceof And) {
        CollectionExpression leftCollectionExpression = parseInternalCollectionExpression(((And) expression).getLeftExpression(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression rightCollectionExpression = parseInternalCollectionExpression(((And) expression).getRightExpression(), matchingMetaInfoHolder, indexedEventHolder);
        if (leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON && rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else if ((leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET) && (rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET)) {
            Set<String> primaryKeys = new HashSet<>();
            primaryKeys.addAll(leftCollectionExpression.getMultiPrimaryKeys());
            primaryKeys.addAll(rightCollectionExpression.getMultiPrimaryKeys());
            if (indexedEventHolder.getPrimaryKeyReferenceHolders() != null && primaryKeys.size() == indexedEventHolder.getPrimaryKeyReferenceHolders().length) {
                return new AndMultiPrimaryKeyCollectionExpression(expression, CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET, leftCollectionExpression, rightCollectionExpression);
            } else {
                return new AndCollectionExpression(expression, CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET, leftCollectionExpression, rightCollectionExpression);
            }
        // TODO support query rewriting to group all PARTIAL_PRIMARY_KEY_RESULT_SETs together such that it can
        // build AndMultiPrimaryKeyCollectionExpression.
        } else if ((leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.EXHAUSTIVE) && (rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.EXHAUSTIVE)) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        } else {
            return new AndCollectionExpression(expression, CollectionExpression.CollectionScope.OPTIMISED_PRIMARY_KEY_OR_INDEXED_RESULT_SET, leftCollectionExpression, rightCollectionExpression);
        }
    } else if (expression instanceof Or) {
        CollectionExpression leftCollectionExpression = parseInternalCollectionExpression(((Or) expression).getLeftExpression(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression rightCollectionExpression = parseInternalCollectionExpression(((Or) expression).getRightExpression(), matchingMetaInfoHolder, indexedEventHolder);
        if (leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON && rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else if (leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.EXHAUSTIVE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.EXHAUSTIVE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        } else {
            return new OrCollectionExpression(expression, CollectionExpression.CollectionScope.OPTIMISED_PRIMARY_KEY_OR_INDEXED_RESULT_SET, leftCollectionExpression, rightCollectionExpression);
        }
    } else if (expression instanceof Not) {
        CollectionExpression notCollectionExpression = parseInternalCollectionExpression(((Not) expression).getExpression(), matchingMetaInfoHolder, indexedEventHolder);
        switch(notCollectionExpression.getCollectionScope()) {
            case NON:
                return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
            case PRIMARY_KEY_ATTRIBUTE:
                return new NotCollectionExpression(expression, CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET, notCollectionExpression);
            case INDEXED_ATTRIBUTE:
                return new NotCollectionExpression(expression, CollectionExpression.CollectionScope.INDEXED_RESULT_SET, notCollectionExpression);
            case PRIMARY_KEY_RESULT_SET:
            case INDEXED_RESULT_SET:
            case OPTIMISED_PRIMARY_KEY_OR_INDEXED_RESULT_SET:
                return new NotCollectionExpression(expression, CollectionExpression.CollectionScope.OPTIMISED_PRIMARY_KEY_OR_INDEXED_RESULT_SET, notCollectionExpression);
            case PARTIAL_PRIMARY_KEY_ATTRIBUTE:
            case PARTIAL_PRIMARY_KEY_RESULT_SET:
            case EXHAUSTIVE:
                return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Compare) {
        CollectionExpression leftCollectionExpression = parseInternalCollectionExpression(((Compare) expression).getLeftExpression(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression rightCollectionExpression = parseInternalCollectionExpression(((Compare) expression).getRightExpression(), matchingMetaInfoHolder, indexedEventHolder);
        if (leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON && rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            // comparing two stream attributes with O(1) time complexity
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else if ((leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.INDEXED_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE || leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE) && rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            switch(leftCollectionExpression.getCollectionScope()) {
                case INDEXED_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.INDEXED_RESULT_SET, leftCollectionExpression, ((Compare) expression).getOperator(), rightCollectionExpression);
                case PRIMARY_KEY_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET, leftCollectionExpression, ((Compare) expression).getOperator(), rightCollectionExpression);
                case PARTIAL_PRIMARY_KEY_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET, leftCollectionExpression, ((Compare) expression).getOperator(), rightCollectionExpression);
            }
        } else if (leftCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON && (rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.INDEXED_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE || rightCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE)) {
            Compare.Operator operator = ((Compare) expression).getOperator();
            // moving let to right
            switch(operator) {
                case LESS_THAN:
                    operator = Compare.Operator.GREATER_THAN;
                    break;
                case GREATER_THAN:
                    operator = Compare.Operator.LESS_THAN;
                    break;
                case LESS_THAN_EQUAL:
                    operator = Compare.Operator.GREATER_THAN_EQUAL;
                    break;
                case GREATER_THAN_EQUAL:
                    operator = Compare.Operator.LESS_THAN_EQUAL;
                    break;
                case EQUAL:
                    break;
                case NOT_EQUAL:
                    break;
            }
            switch(rightCollectionExpression.getCollectionScope()) {
                case INDEXED_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.INDEXED_RESULT_SET, rightCollectionExpression, operator, leftCollectionExpression);
                case PRIMARY_KEY_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET, rightCollectionExpression, operator, leftCollectionExpression);
                case PARTIAL_PRIMARY_KEY_ATTRIBUTE:
                    return new CompareCollectionExpression((Compare) expression, CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_RESULT_SET, rightCollectionExpression, operator, leftCollectionExpression);
            }
        } else {
            // comparing non indexed table with stream attributes or another table attribute
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Constant) {
        return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
    } else if (expression instanceof Variable) {
        if (((Variable) expression).getStreamId() == null) {
            List<String> attributeNameList = Arrays.asList(matchingMetaInfoHolder.getMatchingStreamDefinition().getAttributeNameArray());
            if (attributeNameList.contains(((Variable) expression).getAttributeName())) {
                String streamId = matchingMetaInfoHolder.getMatchingStreamDefinition().getId();
                ((Variable) expression).setStreamId(streamId);
            }
        }
        if (isCollectionVariable(matchingMetaInfoHolder, (Variable) expression)) {
            if (indexedEventHolder.isAttributeIndexed(((Variable) expression).getAttributeName())) {
                return new AttributeCollectionExpression(expression, ((Variable) expression).getAttributeName(), CollectionExpression.CollectionScope.INDEXED_ATTRIBUTE);
            } else if (indexedEventHolder.isMultiPrimaryKeyAttribute(((Variable) expression).getAttributeName())) {
                if (indexedEventHolder.getPrimaryKeyReferenceHolders() != null && indexedEventHolder.getPrimaryKeyReferenceHolders().length == 1) {
                    return new AttributeCollectionExpression(expression, ((Variable) expression).getAttributeName(), CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE);
                } else {
                    return new AttributeCollectionExpression(expression, ((Variable) expression).getAttributeName(), CollectionExpression.CollectionScope.PARTIAL_PRIMARY_KEY_ATTRIBUTE);
                }
            } else {
                return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
            }
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        }
    } else if (expression instanceof Multiply) {
        CollectionExpression left = parseInternalCollectionExpression(((Multiply) expression).getLeftValue(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression right = parseInternalCollectionExpression(((Multiply) expression).getRightValue(), matchingMetaInfoHolder, indexedEventHolder);
        if (left.getCollectionScope() == CollectionExpression.CollectionScope.NON && right.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Add) {
        CollectionExpression left = parseInternalCollectionExpression(((Add) expression).getLeftValue(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression right = parseInternalCollectionExpression(((Add) expression).getRightValue(), matchingMetaInfoHolder, indexedEventHolder);
        if (left.getCollectionScope() == CollectionExpression.CollectionScope.NON && right.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Subtract) {
        CollectionExpression left = parseInternalCollectionExpression(((Subtract) expression).getLeftValue(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression right = parseInternalCollectionExpression(((Subtract) expression).getRightValue(), matchingMetaInfoHolder, indexedEventHolder);
        if (left.getCollectionScope() == CollectionExpression.CollectionScope.NON && right.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Mod) {
        CollectionExpression left = parseInternalCollectionExpression(((Mod) expression).getLeftValue(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression right = parseInternalCollectionExpression(((Mod) expression).getRightValue(), matchingMetaInfoHolder, indexedEventHolder);
        if (left.getCollectionScope() == CollectionExpression.CollectionScope.NON && right.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof Divide) {
        CollectionExpression left = parseInternalCollectionExpression(((Divide) expression).getLeftValue(), matchingMetaInfoHolder, indexedEventHolder);
        CollectionExpression right = parseInternalCollectionExpression(((Divide) expression).getRightValue(), matchingMetaInfoHolder, indexedEventHolder);
        if (left.getCollectionScope() == CollectionExpression.CollectionScope.NON && right.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    } else if (expression instanceof AttributeFunction) {
        Expression[] innerExpressions = ((AttributeFunction) expression).getParameters();
        for (Expression aExpression : innerExpressions) {
            CollectionExpression aCollectionExpression = parseInternalCollectionExpression(aExpression, matchingMetaInfoHolder, indexedEventHolder);
            if (aCollectionExpression.getCollectionScope() != CollectionExpression.CollectionScope.NON) {
                return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
            }
        }
        return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
    } else if (expression instanceof In) {
        CollectionExpression inCollectionExpression = parseInternalCollectionExpression(((In) expression).getExpression(), matchingMetaInfoHolder, indexedEventHolder);
        if (inCollectionExpression.getCollectionScope() != CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
        return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
    } else if (expression instanceof IsNull) {
        CollectionExpression nullCollectionExpression = parseInternalCollectionExpression(((IsNull) expression).getExpression(), matchingMetaInfoHolder, indexedEventHolder);
        if (nullCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.NON) {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.NON);
        } else if (nullCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.INDEXED_ATTRIBUTE) {
            return new NullCollectionExpression(expression, CollectionExpression.CollectionScope.INDEXED_RESULT_SET, ((AttributeCollectionExpression) nullCollectionExpression).getAttribute());
        } else if (nullCollectionExpression.getCollectionScope() == CollectionExpression.CollectionScope.PRIMARY_KEY_ATTRIBUTE) {
            return new NullCollectionExpression(expression, CollectionExpression.CollectionScope.PRIMARY_KEY_RESULT_SET, ((AttributeCollectionExpression) nullCollectionExpression).getAttribute());
        } else {
            return new BasicCollectionExpression(expression, CollectionExpression.CollectionScope.EXHAUSTIVE);
        }
    }
    throw new UnsupportedOperationException(expression.toString() + " not supported!");
}

Example 5 with In

use of io.siddhi.query.api.expression.condition.In in project siddhi by wso2.

the class ExpressionParser method parseExpression.

/**
 * Parse the given expression and create the appropriate Executor by recursively traversing the expression
 *
 * @param expression                 Expression to be parsed
 * @param metaEvent                  Meta Event
 * @param currentState               Current state number
 * @param tableMap                   Event Table Map
 * @param executorList               List to hold VariableExpressionExecutors to update after query parsing
 * @param groupBy                    is for groupBy expression
 * @param defaultStreamEventIndex    Default StreamEvent Index
 * @param processingMode             processing mode of the query
 * @param outputExpectsExpiredEvents is expired events sent as output
 * @param siddhiQueryContext         current siddhi query context
 * @return ExpressionExecutor
 */
public static ExpressionExecutor parseExpression(Expression expression, MetaComplexEvent metaEvent, int currentState, Map<String, Table> tableMap, List<VariableExpressionExecutor> executorList, boolean groupBy, int defaultStreamEventIndex, ProcessingMode processingMode, boolean outputExpectsExpiredEvents, SiddhiQueryContext siddhiQueryContext) {
    try {
        if (expression instanceof And) {
            return new AndConditionExpressionExecutor(parseExpression(((And) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((And) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Or) {
            return new OrConditionExpressionExecutor(parseExpression(((Or) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Or) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Not) {
            return new NotConditionExpressionExecutor(parseExpression(((Not) expression).getExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Compare) {
            if (((Compare) expression).getOperator() == Compare.Operator.EQUAL) {
                Expression leftExpression = ((Compare) expression).getLeftExpression();
                Expression rightExpression = ((Compare) expression).getRightExpression();
                ExpressionExecutor leftExpressionExecutor = parseExpression(leftExpression, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                ExpressionExecutor rightExpressionExecutor = parseExpression(rightExpression, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                return parseEqualCompare(leftExpressionExecutor, rightExpressionExecutor);
            } else if (((Compare) expression).getOperator() == Compare.Operator.NOT_EQUAL) {
                return parseNotEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.GREATER_THAN) {
                return parseGreaterThanCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.GREATER_THAN_EQUAL) {
                return parseGreaterThanEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.LESS_THAN) {
                return parseLessThanCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.LESS_THAN_EQUAL) {
                return parseLessThanEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            }
        } else if (expression instanceof Constant) {
            if (expression instanceof BoolConstant) {
                return new ConstantExpressionExecutor(((BoolConstant) expression).getValue(), Attribute.Type.BOOL);
            } else if (expression instanceof StringConstant) {
                return new ConstantExpressionExecutor(((StringConstant) expression).getValue(), Attribute.Type.STRING);
            } else if (expression instanceof IntConstant) {
                return new ConstantExpressionExecutor(((IntConstant) expression).getValue(), Attribute.Type.INT);
            } else if (expression instanceof LongConstant) {
                return new ConstantExpressionExecutor(((LongConstant) expression).getValue(), Attribute.Type.LONG);
            } else if (expression instanceof FloatConstant) {
                return new ConstantExpressionExecutor(((FloatConstant) expression).getValue(), Attribute.Type.FLOAT);
            } else if (expression instanceof DoubleConstant) {
                return new ConstantExpressionExecutor(((DoubleConstant) expression).getValue(), Attribute.Type.DOUBLE);
            }
        } else if (expression instanceof Variable) {
            return parseVariable((Variable) expression, metaEvent, currentState, executorList, defaultStreamEventIndex, siddhiQueryContext);
        } else if (expression instanceof Multiply) {
            ExpressionExecutor left = parseExpression(((Multiply) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Multiply) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new MultiplyExpressionExecutorInt(left, right);
                case LONG:
                    return new MultiplyExpressionExecutorLong(left, right);
                case FLOAT:
                    return new MultiplyExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new MultiplyExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Add) {
            ExpressionExecutor left = parseExpression(((Add) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Add) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new AddExpressionExecutorInt(left, right);
                case LONG:
                    return new AddExpressionExecutorLong(left, right);
                case FLOAT:
                    return new AddExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new AddExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Subtract) {
            ExpressionExecutor left = parseExpression(((Subtract) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Subtract) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new SubtractExpressionExecutorInt(left, right);
                case LONG:
                    return new SubtractExpressionExecutorLong(left, right);
                case FLOAT:
                    return new SubtractExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new SubtractExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Mod) {
            ExpressionExecutor left = parseExpression(((Mod) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Mod) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new ModExpressionExecutorInt(left, right);
                case LONG:
                    return new ModExpressionExecutorLong(left, right);
                case FLOAT:
                    return new ModExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new ModExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Divide) {
            ExpressionExecutor left = parseExpression(((Divide) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Divide) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new DivideExpressionExecutorInt(left, right);
                case LONG:
                    return new DivideExpressionExecutorLong(left, right);
                case FLOAT:
                    return new DivideExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new DivideExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof AttributeFunction) {
            // extensions
            Object executor;
            try {
                if ((siddhiQueryContext.getSiddhiAppContext().isFunctionExist(((AttributeFunction) expression).getName())) && (((AttributeFunction) expression).getNamespace()).isEmpty()) {
                    executor = new ScriptFunctionExecutor(((AttributeFunction) expression).getName());
                } else {
                    executor = SiddhiClassLoader.loadExtensionImplementation((AttributeFunction) expression, FunctionExecutorExtensionHolder.getInstance(siddhiQueryContext.getSiddhiAppContext()));
                }
            } catch (SiddhiAppCreationException ex) {
                try {
                    executor = SiddhiClassLoader.loadExtensionImplementation((AttributeFunction) expression, AttributeAggregatorExtensionHolder.getInstance(siddhiQueryContext.getSiddhiAppContext()));
                } catch (SiddhiAppCreationException e) {
                    throw new ExtensionNotFoundException("'" + ((AttributeFunction) expression).getName() + "' is" + " neither a function extension nor an aggregated attribute extension", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                }
            }
            ConfigReader configReader = siddhiQueryContext.getSiddhiContext().getConfigManager().generateConfigReader(((AttributeFunction) expression).getNamespace(), ((AttributeFunction) expression).getName());
            if (executor instanceof FunctionExecutor) {
                FunctionExecutor expressionExecutor = (FunctionExecutor) executor;
                Expression[] innerExpressions = ((AttributeFunction) expression).getParameters();
                ExpressionExecutor[] innerExpressionExecutors = parseInnerExpression(innerExpressions, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                expressionExecutor.initExecutor(innerExpressionExecutors, processingMode, configReader, groupBy, siddhiQueryContext);
                if (expressionExecutor.getReturnType() == Attribute.Type.BOOL) {
                    return new BoolConditionExpressionExecutor(expressionExecutor);
                }
                return expressionExecutor;
            } else {
                AttributeAggregatorExecutor attributeAggregatorExecutor = (AttributeAggregatorExecutor) executor;
                Expression[] innerExpressions = ((AttributeFunction) expression).getParameters();
                ExpressionExecutor[] innerExpressionExecutors = parseInnerExpression(innerExpressions, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                attributeAggregatorExecutor.initAggregator(innerExpressionExecutors, processingMode, outputExpectsExpiredEvents, configReader, groupBy, siddhiQueryContext);
                // AbstractAggregationAttributeExecutor aggregationAttributeProcessor;
                // if (groupBy) {
                // aggregationAttributeProcessor = new GroupByAggregationAttributeExecutor(attributeAggregatorExecutor,
                // innerExpressionExecutors, configReader, siddhiQueryContext);
                // } else {
                // aggregationAttributeProcessor = new AggregationAttributeExecutor(attributeAggregatorExecutor,
                // innerExpressionExecutors, siddhiQueryContext);
                // }
                SelectorParser.getContainsAggregatorThreadLocal().set("true");
                return attributeAggregatorExecutor;
            }
        } else if (expression instanceof In) {
            Table table = tableMap.get(((In) expression).getSourceId());
            MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(metaEvent, defaultStreamEventIndex, table.getTableDefinition(), defaultStreamEventIndex);
            CompiledCondition compiledCondition = table.compileCondition(((In) expression).getExpression(), matchingMetaInfoHolder, executorList, tableMap, siddhiQueryContext);
            return new InConditionExpressionExecutor(table, compiledCondition, matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvents().length, metaEvent instanceof StateEvent, 0);
        } else if (expression instanceof IsNull) {
            IsNull isNull = (IsNull) expression;
            if (isNull.getExpression() != null) {
                ExpressionExecutor innerExpressionExecutor = parseExpression(isNull.getExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                return new IsNullConditionExpressionExecutor(innerExpressionExecutor);
            } else {
                String streamId = isNull.getStreamId();
                Integer streamIndex = isNull.getStreamIndex();
                if (metaEvent instanceof MetaStateEvent) {
                    int[] eventPosition = new int[2];
                    if (streamIndex != null) {
                        if (streamIndex <= SiddhiConstants.LAST) {
                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex + 1;
                        } else {
                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex;
                        }
                    } else {
                        eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = defaultStreamEventIndex;
                    }
                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = SiddhiConstants.UNKNOWN_STATE;
                    MetaStateEvent metaStateEvent = (MetaStateEvent) metaEvent;
                    if (streamId == null) {
                        throw new SiddhiAppCreationException("IsNull does not support streamId being null", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                    } else {
                        MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
                        for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
                            MetaStreamEvent metaStreamEvent = metaStreamEvents[i];
                            AbstractDefinition definition = metaStreamEvent.getLastInputDefinition();
                            if (metaStreamEvent.getInputReferenceId() == null) {
                                if (definition.getId().equals(streamId)) {
                                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = i;
                                    break;
                                }
                            } else {
                                if (metaStreamEvent.getInputReferenceId().equals(streamId)) {
                                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = i;
                                    if (currentState > -1 && metaStreamEvents[currentState].getInputReferenceId() != null && streamIndex != null && streamIndex <= SiddhiConstants.LAST) {
                                        if (streamId.equals(metaStreamEvents[currentState].getInputReferenceId())) {
                                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex;
                                        }
                                    }
                                    break;
                                }
                            }
                        }
                    }
                    return new IsNullStreamConditionExpressionExecutor(eventPosition);
                } else {
                    return new IsNullStreamConditionExpressionExecutor(null);
                }
            }
        }
        throw new UnsupportedOperationException(expression.toString() + " not supported!");
    } catch (Throwable t) {
        ExceptionUtil.populateQueryContext(t, expression, siddhiQueryContext.getSiddhiAppContext(), siddhiQueryContext);
        throw t;
    }
}