Examples with Constant org.wso2.siddhi.query.api.expression.constant.Constant used on opensource projects

Example 26 with Constant

use of org.wso2.siddhi.query.api.expression.constant.Constant 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();
            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 {
                    MetaStreamEvent metaStreamEvent = matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvent(matchingMetaInfoHolder.getCurrentState());
                    definition = metaStreamEvent.getLastInputDefinition();
                    try {
                        type = definition.getAttributeType(attributeName);
                    } catch (AttributeNotExistException e) {
                        throw new SiddhiAppValidationException(e.getMessageWithOutContext() + " Input Stream: " + definition.getId() + " with " + "reference: " + metaStreamEvent.getInputReferenceId(), e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext.getName(), siddhiAppContext.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, siddhiAppContext);
        throw t;
    }
}

Example 27 with Constant

use of org.wso2.siddhi.query.api.expression.constant.Constant in project ballerina by ballerina-lang.

the class CodeGenerator method createResourceInfoEntry.

private void createResourceInfoEntry(BLangResource resourceNode, ServiceInfo serviceInfo) {
    BInvokableType resourceType = (BInvokableType) resourceNode.symbol.type;
    // Add resource name as an UTFCPEntry to the constant pool
    int serviceNameCPIndex = addUTF8CPEntry(currentPkgInfo, resourceNode.name.value);
    ResourceInfo resourceInfo = new ResourceInfo(currentPackageRefCPIndex, serviceNameCPIndex);
    resourceInfo.paramTypes = resourceType.paramTypes.toArray(new BType[0]);
    setParameterNames(resourceNode, resourceInfo);
    resourceInfo.retParamTypes = new BType[0];
    resourceInfo.signatureCPIndex = addUTF8CPEntry(currentPkgInfo, generateFunctionSig(resourceInfo.paramTypes, resourceInfo.retParamTypes));
    // Add worker info
    int workerNameCPIndex = addUTF8CPEntry(currentPkgInfo, "default");
    resourceInfo.defaultWorkerInfo = new WorkerInfo(workerNameCPIndex, "default");
    resourceNode.workers.forEach(worker -> addWorkerInfoEntry(worker, resourceInfo));
    // Add resource info to the service info
    serviceInfo.resourceInfoMap.put(resourceNode.name.getValue(), resourceInfo);
}

Example 28 with Constant

use of org.wso2.siddhi.query.api.expression.constant.Constant in project ballerina by ballerina-lang.

the class CodeGenerator method getTypeCPIndex.

/**
 * Get the constant pool entry index of a given type.
 *
 * @param type Type to get the constant pool entry index
 * @return constant pool entry index of the type
 */
private Operand getTypeCPIndex(BType type) {
    int typeSigCPIndex = addUTF8CPEntry(currentPkgInfo, type.getDesc());
    TypeRefCPEntry typeRefCPEntry = new TypeRefCPEntry(typeSigCPIndex);
    return getOperand(currentPkgInfo.addCPEntry(typeRefCPEntry));
}

Example 29 with Constant

use of org.wso2.siddhi.query.api.expression.constant.Constant in project ballerina by ballerina-lang.

the class CodeGenerator method createStructInfoEntry.

private void createStructInfoEntry(BLangStruct structNode) {
    BStructSymbol structSymbol = (BStructSymbol) structNode.symbol;
    // Add Struct name as an UTFCPEntry to the constant pool
    int structNameCPIndex = addUTF8CPEntry(currentPkgInfo, structSymbol.name.value);
    StructInfo structInfo = new StructInfo(currentPackageRefCPIndex, structNameCPIndex, structSymbol.flags);
    currentPkgInfo.addStructInfo(structSymbol.name.value, structInfo);
    structInfo.structType = (BStructType) structSymbol.type;
    List<BLangVariable> structFields = structNode.fields;
    for (BLangVariable structField : structFields) {
        // Create StructFieldInfo Entry
        int fieldNameCPIndex = addUTF8CPEntry(currentPkgInfo, structField.name.value);
        int sigCPIndex = addUTF8CPEntry(currentPkgInfo, structField.type.getDesc());
        StructFieldInfo structFieldInfo = new StructFieldInfo(fieldNameCPIndex, sigCPIndex, structField.symbol.flags);
        structFieldInfo.fieldType = structField.type;
        // Populate default values
        if (structField.expr != null && structField.expr.getKind() == NodeKind.LITERAL) {
            DefaultValueAttributeInfo defaultVal = getDefaultValueAttributeInfo((BLangLiteral) structField.expr);
            structFieldInfo.addAttributeInfo(AttributeInfo.Kind.DEFAULT_VALUE_ATTRIBUTE, defaultVal);
        }
        structInfo.fieldInfoEntries.add(structFieldInfo);
        structField.symbol.varIndex = getFieldIndex(structField.symbol.type.tag);
    }
    // Create variable count attribute info
    prepareIndexes(fieldIndexes);
    int[] fieldCount = new int[] { fieldIndexes.tInt, fieldIndexes.tFloat, fieldIndexes.tString, fieldIndexes.tBoolean, fieldIndexes.tBlob, fieldIndexes.tRef };
    addVariableCountAttributeInfo(currentPkgInfo, structInfo, fieldCount);
    fieldIndexes = new VariableIndex(FIELD);
    // Create attached function info entries
    for (BAttachedFunction attachedFunc : structSymbol.attachedFuncs) {
        int funcNameCPIndex = addUTF8CPEntry(currentPkgInfo, attachedFunc.funcName.value);
        // Remove the first type. The first type is always the type to which the function is attached to
        BType[] paramTypes = attachedFunc.type.paramTypes.toArray(new BType[0]);
        if (paramTypes.length == 1) {
            paramTypes = new BType[0];
        } else {
            paramTypes = attachedFunc.type.paramTypes.toArray(new BType[0]);
            paramTypes = Arrays.copyOfRange(paramTypes, 1, paramTypes.length);
        }
        int sigCPIndex = addUTF8CPEntry(currentPkgInfo, generateFunctionSig(paramTypes, attachedFunc.type.retTypes.toArray(new BType[0])));
        int flags = attachedFunc.symbol.flags;
        structInfo.attachedFuncInfoEntries.add(new AttachedFunctionInfo(funcNameCPIndex, sigCPIndex, flags));
    }
}

Example 30 with Constant

use of org.wso2.siddhi.query.api.expression.constant.Constant in project ballerina by ballerina-lang.

the class CodeGenerator method createConnectorInfoEntry.

private void createConnectorInfoEntry(BLangConnector connectorNode) {
    BConnectorType connectorType = (BConnectorType) connectorNode.symbol.type;
    // Add connector name as an UTFCPEntry to the constant pool
    int connectorNameCPIndex = addUTF8CPEntry(currentPkgInfo, connectorNode.name.value);
    // Create connector info
    ConnectorInfo connectorInfo = new ConnectorInfo(currentPackageRefCPIndex, connectorNameCPIndex, connectorNode.symbol.flags);
    connectorInfo.paramTypes = connectorType.paramTypes.toArray(new BType[0]);
    connectorInfo.signatureCPIndex = addUTF8CPEntry(this.currentPkgInfo, generateConnectorSig(connectorInfo));
    // Add connector level variables
    int localVarAttNameIndex = addUTF8CPEntry(currentPkgInfo, AttributeInfo.Kind.LOCAL_VARIABLES_ATTRIBUTE.value());
    LocalVariableAttributeInfo localVarAttributeInfo = new LocalVariableAttributeInfo(localVarAttNameIndex);
    connectorNode.params.forEach(var -> visitVarSymbol(var.symbol, fieldIndexes, localVarAttributeInfo));
    connectorNode.varDefs.forEach(var -> visitVarSymbol(var.var.symbol, fieldIndexes, localVarAttributeInfo));
    connectorInfo.addAttributeInfo(AttributeInfo.Kind.LOCAL_VARIABLES_ATTRIBUTE, localVarAttributeInfo);
    // Create variable count attribute info
    prepareIndexes(fieldIndexes);
    int[] fieldCount = new int[] { fieldIndexes.tInt, fieldIndexes.tFloat, fieldIndexes.tString, fieldIndexes.tBoolean, fieldIndexes.tBlob, fieldIndexes.tRef };
    addVariableCountAttributeInfo(currentPkgInfo, connectorInfo, fieldCount);
    // Create the init function info
    BLangFunction connectorInitFunction = (BLangFunction) connectorNode.getInitFunction();
    createFunctionInfoEntry(connectorInitFunction);
    this.currentPkgInfo.connectorInfoMap.put(connectorNode.name.value, connectorInfo);
    // Create action info entries for all actions
    connectorNode.actions.forEach(res -> createActionInfoEntry(res, connectorInfo));
    createActionInfoEntry(connectorNode.initAction, connectorInfo);
    fieldIndexes = new VariableIndex(FIELD);
}