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

Example 81 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseRuntimeService method getVariablesToSet.

protected Map<String, Object> getVariablesToSet(ExecutionActionRequest actionRequest) {
    Map<String, Object> variablesToSet = new HashMap<String, Object>();
    for (RestVariable var : actionRequest.getVariables()) {
        if (var.getName() == null) {
            throw new ActivitiIllegalArgumentException("Variable name is required");
        }
        Object actualVariableValue = new RestResponseFactory().getVariableValue(var);
        variablesToSet.put(var.getName(), actualVariableValue);
    }
    return variablesToSet;
}

Example 82 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseTaskService method addTaskvariables.

protected void addTaskvariables(TaskQuery taskQuery, List<QueryVariable> variables) {
    RestResponseFactory restResponseFactory = new RestResponseFactory();
    for (QueryVariable variable : variables) {
        if (variable.getVariableOperation() == null) {
            throw new ActivitiIllegalArgumentException("Variable operation is missing for variable: " + variable.getName());
        }
        if (variable.getValue() == null) {
            throw new ActivitiIllegalArgumentException("Variable value is missing for variable: " + variable.getName());
        }
        boolean nameLess = variable.getName() == null;
        Object actualValue = restResponseFactory.getVariableValue(variable);
        // A value-only query is only possible using equals-operator
        if (nameLess && variable.getVariableOperation() != QueryVariable.QueryVariableOperation.EQUALS) {
            throw new ActivitiIllegalArgumentException("Value-only query (without a variable-name) is only supported when using 'equals' operation.");
        }
        switch(variable.getVariableOperation()) {
            case EQUALS:
                if (nameLess) {
                    taskQuery.taskVariableValueEquals(actualValue);
                } else {
                    taskQuery.taskVariableValueEquals(variable.getName(), actualValue);
                }
                break;
            case EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    taskQuery.taskVariableValueEqualsIgnoreCase(variable.getName(), (String) actualValue);
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            case NOT_EQUALS:
                taskQuery.taskVariableValueNotEquals(variable.getName(), actualValue);
                break;
            case NOT_EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    taskQuery.taskVariableValueNotEqualsIgnoreCase(variable.getName(), (String) actualValue);
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            case GREATER_THAN:
                taskQuery.taskVariableValueGreaterThan(variable.getName(), actualValue);
                break;
            case GREATER_THAN_OR_EQUALS:
                taskQuery.taskVariableValueGreaterThanOrEqual(variable.getName(), actualValue);
                break;
            case LESS_THAN:
                taskQuery.taskVariableValueLessThan(variable.getName(), actualValue);
                break;
            case LESS_THAN_OR_EQUALS:
                taskQuery.taskVariableValueLessThanOrEqual(variable.getName(), actualValue);
                break;
            case LIKE:
                if (actualValue instanceof String) {
                    taskQuery.taskVariableValueLike(variable.getName(), (String) actualValue);
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported using like, but was: " + actualValue.getClass().getName());
                }
                break;
            default:
                throw new ActivitiIllegalArgumentException("Unsupported variable query operation: " + variable.getVariableOperation());
        }
    }
}

Example 83 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-apimgt by wso2.

the class APIFileUtils method extractArchive.

/**
 * Extracts a a given zip archive
 *
 * @param archiveFilePath path of the zip archive
 * @param destination     extract location
 * @return name of the extracted zip archive
 * @throws APIMgtDAOException if an error occurs while extracting the archive
 */
public static String extractArchive(String archiveFilePath, String destination) throws APIMgtDAOException {
    String archiveName = null;
    try (ZipFile zip = new ZipFile(new File(archiveFilePath))) {
        Enumeration zipFileEntries = zip.entries();
        int index = 0;
        // Process each entry
        while (zipFileEntries.hasMoreElements()) {
            // grab a zip file entry
            ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();
            String currentEntry = entry.getName();
            // This index variable is used to get the extracted folder name; that is root directory
            if (index == 0) {
                archiveName = currentEntry.substring(0, currentEntry.indexOf('/'));
                --index;
            }
            File destinationFile = new File(destination, currentEntry);
            File destinationParent = destinationFile.getParentFile();
            // create the parent directory structure
            if (destinationParent.mkdirs()) {
                log.debug("Creation of folder is successful. Directory Name : " + destinationParent.getName());
            }
            if (!entry.isDirectory()) {
                writeFileToDestination(zip, entry, destinationFile);
            }
        }
        return archiveName;
    } catch (IOException e) {
        String errorMsg = "Failed to extract archive file: " + archiveFilePath + " to destination: " + destination;
        log.error(errorMsg, e);
        throw new APIMgtDAOException(errorMsg, e);
    }
}

Example 84 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project siddhi by wso2.

the class AggregationParser method populateIncomingAggregatorsAndExecutors.

private static void populateIncomingAggregatorsAndExecutors(AggregationDefinition aggregationDefinition, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, List<VariableExpressionExecutor> incomingVariableExpressionExecutors, String aggregatorName, MetaStreamEvent incomingMetaStreamEvent, List<ExpressionExecutor> incomingExpressionExecutors, List<IncrementalAttributeAggregator> incrementalAttributeAggregators, List<Variable> groupByVariableList, List<Expression> outputExpressions) {
    ExpressionExecutor[] timeStampTimeZoneExecutors = setTimeStampTimeZoneExecutors(aggregationDefinition, siddhiAppContext, tableMap, incomingVariableExpressionExecutors, aggregatorName, incomingMetaStreamEvent);
    ExpressionExecutor timestampExecutor = timeStampTimeZoneExecutors[0];
    ExpressionExecutor timeZoneExecutor = timeStampTimeZoneExecutors[1];
    Attribute timestampAttribute = new Attribute("AGG_TIMESTAMP", Attribute.Type.LONG);
    incomingMetaStreamEvent.addOutputData(timestampAttribute);
    incomingExpressionExecutors.add(timestampExecutor);
    incomingMetaStreamEvent.addOutputData(new Attribute("AGG_TIMEZONE", Attribute.Type.STRING));
    incomingExpressionExecutors.add(timeZoneExecutor);
    AbstractDefinition incomingLastInputStreamDefinition = incomingMetaStreamEvent.getLastInputDefinition();
    for (Variable groupByVariable : groupByVariableList) {
        incomingMetaStreamEvent.addOutputData(incomingLastInputStreamDefinition.getAttributeList().get(incomingLastInputStreamDefinition.getAttributePosition(groupByVariable.getAttributeName())));
        incomingExpressionExecutors.add(ExpressionParser.parseExpression(groupByVariable, incomingMetaStreamEvent, 0, tableMap, incomingVariableExpressionExecutors, siddhiAppContext, false, 0, aggregatorName));
    }
    // Add AGG_TIMESTAMP to output as well
    outputExpressions.add(Expression.variable("AGG_TIMESTAMP"));
    aggregationDefinition.getAttributeList().add(timestampAttribute);
    for (OutputAttribute outputAttribute : aggregationDefinition.getSelector().getSelectionList()) {
        Expression expression = outputAttribute.getExpression();
        if (expression instanceof AttributeFunction) {
            IncrementalAttributeAggregator incrementalAggregator = null;
            try {
                incrementalAggregator = (IncrementalAttributeAggregator) SiddhiClassLoader.loadExtensionImplementation(new AttributeFunction("incrementalAggregator", ((AttributeFunction) expression).getName(), ((AttributeFunction) expression).getParameters()), IncrementalAttributeAggregatorExtensionHolder.getInstance(siddhiAppContext));
            } catch (SiddhiAppCreationException ex) {
                try {
                    SiddhiClassLoader.loadExtensionImplementation((AttributeFunction) expression, FunctionExecutorExtensionHolder.getInstance(siddhiAppContext));
                    ExpressionExecutor expressionExecutor = ExpressionParser.parseExpression(expression, incomingMetaStreamEvent, 0, tableMap, incomingVariableExpressionExecutors, siddhiAppContext, false, 0, aggregatorName);
                    incomingExpressionExecutors.add(expressionExecutor);
                    incomingMetaStreamEvent.addOutputData(new Attribute(outputAttribute.getRename(), expressionExecutor.getReturnType()));
                    aggregationDefinition.getAttributeList().add(new Attribute(outputAttribute.getRename(), expressionExecutor.getReturnType()));
                    outputExpressions.add(Expression.variable(outputAttribute.getRename()));
                } catch (SiddhiAppCreationException e) {
                    throw new SiddhiAppCreationException("'" + ((AttributeFunction) expression).getName() + "' is neither a incremental attribute aggregator extension or a function" + " extension", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                }
            }
            if (incrementalAggregator != null) {
                initIncrementalAttributeAggregator(incomingLastInputStreamDefinition, (AttributeFunction) expression, incrementalAggregator);
                incrementalAttributeAggregators.add(incrementalAggregator);
                aggregationDefinition.getAttributeList().add(new Attribute(outputAttribute.getRename(), incrementalAggregator.getReturnType()));
                outputExpressions.add(incrementalAggregator.aggregate());
            }
        } else {
            if (expression instanceof Variable && groupByVariableList.contains(expression)) {
                Attribute groupByAttribute = null;
                for (Attribute attribute : incomingMetaStreamEvent.getOutputData()) {
                    if (attribute.getName().equals(((Variable) expression).getAttributeName())) {
                        groupByAttribute = attribute;
                        break;
                    }
                }
                if (groupByAttribute == null) {
                    throw new SiddhiAppCreationException("Expected GroupBy attribute '" + ((Variable) expression).getAttributeName() + "' not used in aggregation '" + aggregatorName + "' processing.", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                }
                aggregationDefinition.getAttributeList().add(new Attribute(outputAttribute.getRename(), groupByAttribute.getType()));
                outputExpressions.add(Expression.variable(groupByAttribute.getName()));
            } else {
                ExpressionExecutor expressionExecutor = ExpressionParser.parseExpression(expression, incomingMetaStreamEvent, 0, tableMap, incomingVariableExpressionExecutors, siddhiAppContext, false, 0, aggregatorName);
                incomingExpressionExecutors.add(expressionExecutor);
                incomingMetaStreamEvent.addOutputData(new Attribute(outputAttribute.getRename(), expressionExecutor.getReturnType()));
                aggregationDefinition.getAttributeList().add(new Attribute(outputAttribute.getRename(), expressionExecutor.getReturnType()));
                outputExpressions.add(Expression.variable(outputAttribute.getRename()));
            }
        }
    }
}

Example 85 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project siddhi by wso2.

the class AggregationParser method initDefaultTables.

private static HashMap<TimePeriod.Duration, Table> initDefaultTables(String aggregatorName, List<TimePeriod.Duration> durations, StreamDefinition streamDefinition, SiddhiAppRuntimeBuilder siddhiAppRuntimeBuilder, List<Annotation> annotations, List<Variable> groupByVariableList) {
    HashMap<TimePeriod.Duration, Table> aggregationTableMap = new HashMap<>();
    // Create annotations for primary key
    Annotation primaryKeyAnnotation = new Annotation(SiddhiConstants.ANNOTATION_PRIMARY_KEY);
    primaryKeyAnnotation.element(null, "AGG_TIMESTAMP");
    for (Variable groupByVariable : groupByVariableList) {
        primaryKeyAnnotation.element(null, groupByVariable.getAttributeName());
    }
    annotations.add(primaryKeyAnnotation);
    for (TimePeriod.Duration duration : durations) {
        String tableId = aggregatorName + "_" + duration.toString();
        TableDefinition tableDefinition = TableDefinition.id(tableId);
        for (Attribute attribute : streamDefinition.getAttributeList()) {
            tableDefinition.attribute(attribute.getName(), attribute.getType());
        }
        annotations.forEach(tableDefinition::annotation);
        siddhiAppRuntimeBuilder.defineTable(tableDefinition);
        aggregationTableMap.put(duration, siddhiAppRuntimeBuilder.getTableMap().get(tableId));
    }
    return aggregationTableMap;
}