Examples with VariableExpressionExecutor org.wso2.siddhi.core.executor.VariableExpressionExecutor used on opensource projects

Example 31 with VariableExpressionExecutor

use of org.wso2.siddhi.core.executor.VariableExpressionExecutor in project siddhi by wso2.

the class JoinInputStreamParser method setStreamRuntimeProcessorChain.

private static void setStreamRuntimeProcessorChain(MetaStreamEvent metaStreamEvent, SingleStreamRuntime streamRuntime, String inputStreamId, Map<String, Table> tableMap, Map<String, Window> windowMap, Map<String, AggregationRuntime> aggregationMap, List<VariableExpressionExecutor> variableExpressionExecutors, boolean outputExpectsExpiredEvents, String queryName, Within within, Expression per, SiddhiAppContext siddhiAppContext, InputStream inputStream) {
    switch(metaStreamEvent.getEventType()) {
        case TABLE:
            TableWindowProcessor tableWindowProcessor = new TableWindowProcessor(tableMap.get(inputStreamId));
            tableWindowProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), new ExpressionExecutor[0], null, siddhiAppContext, outputExpectsExpiredEvents, queryName, inputStream);
            streamRuntime.setProcessorChain(tableWindowProcessor);
            break;
        case WINDOW:
            WindowWindowProcessor windowWindowProcessor = new WindowWindowProcessor(windowMap.get(inputStreamId));
            windowWindowProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), variableExpressionExecutors.toArray(new ExpressionExecutor[0]), null, siddhiAppContext, outputExpectsExpiredEvents, queryName, inputStream);
            streamRuntime.setProcessorChain(windowWindowProcessor);
            break;
        case AGGREGATE:
            AggregationRuntime aggregationRuntime = aggregationMap.get(inputStreamId);
            AggregateWindowProcessor aggregateWindowProcessor = new AggregateWindowProcessor(aggregationRuntime, within, per);
            aggregateWindowProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), variableExpressionExecutors.toArray(new ExpressionExecutor[0]), null, siddhiAppContext, outputExpectsExpiredEvents, queryName, inputStream);
            streamRuntime.setProcessorChain(aggregateWindowProcessor);
            break;
        case DEFAULT:
            break;
    }
}

Example 32 with VariableExpressionExecutor

use of org.wso2.siddhi.core.executor.VariableExpressionExecutor in project siddhi by wso2.

the class PartitionParser method parse.

public static PartitionRuntime parse(SiddhiAppRuntimeBuilder siddhiAppRuntimeBuilder, Partition partition, SiddhiAppContext siddhiAppContext, ConcurrentMap<String, AbstractDefinition> streamDefinitionMap, int queryIndex) {
    PartitionRuntime partitionRuntime = new PartitionRuntime(siddhiAppRuntimeBuilder.getStreamDefinitionMap(), siddhiAppRuntimeBuilder.getStreamJunctions(), partition, siddhiAppContext);
    validateStreamPartitions(partition.getPartitionTypeMap(), streamDefinitionMap);
    for (Query query : partition.getQueryList()) {
        List<VariableExpressionExecutor> executors = new ArrayList<VariableExpressionExecutor>();
        ConcurrentMap<String, AbstractDefinition> combinedStreamMap = new ConcurrentHashMap<String, AbstractDefinition>();
        combinedStreamMap.putAll(streamDefinitionMap);
        combinedStreamMap.putAll(partitionRuntime.getLocalStreamDefinitionMap());
        QueryRuntime queryRuntime = QueryParser.parse(query, siddhiAppContext, combinedStreamMap, siddhiAppRuntimeBuilder.getTableDefinitionMap(), siddhiAppRuntimeBuilder.getWindowDefinitionMap(), siddhiAppRuntimeBuilder.getAggregationDefinitionMap(), siddhiAppRuntimeBuilder.getTableMap(), siddhiAppRuntimeBuilder.getAggregationMap(), siddhiAppRuntimeBuilder.getWindowMap(), siddhiAppRuntimeBuilder.getLockSynchronizer(), String.valueOf(queryIndex));
        queryIndex++;
        MetaStateEvent metaStateEvent = createMetaEventForPartitioner(queryRuntime.getMetaComplexEvent());
        partitionRuntime.addQuery(queryRuntime);
        partitionRuntime.addPartitionReceiver(queryRuntime, executors, metaStateEvent);
        QueryParserHelper.reduceMetaComplexEvent(metaStateEvent);
        if (queryRuntime.getMetaComplexEvent() instanceof MetaStateEvent) {
            QueryParserHelper.updateVariablePosition(metaStateEvent, executors);
        } else {
            QueryParserHelper.updateVariablePosition(metaStateEvent.getMetaStreamEvent(0), executors);
        }
        partitionRuntime.init();
    }
    return partitionRuntime;
}

Example 33 with VariableExpressionExecutor

use of org.wso2.siddhi.core.executor.VariableExpressionExecutor in project siddhi by wso2.

the class QueryParser method parse.

/**
 * Parse a query and return corresponding QueryRuntime.
 *
 * @param query                    query to be parsed.
 * @param siddhiAppContext         associated Siddhi app context.
 * @param streamDefinitionMap      keyvalue containing user given stream definitions.
 * @param tableDefinitionMap       keyvalue containing table definitions.
 * @param windowDefinitionMap      keyvalue containing window definition map.
 * @param aggregationDefinitionMap keyvalue containing aggregation definition map.
 * @param tableMap                 keyvalue containing event tables.
 * @param aggregationMap           keyvalue containing aggrigation runtimes.
 * @param windowMap                keyvalue containing event window map.
 * @param lockSynchronizer         Lock synchronizer for sync the lock across queries.
 * @param queryIndex               query index to identify unknown query by number
 * @return queryRuntime
 */
public static QueryRuntime parse(Query query, SiddhiAppContext siddhiAppContext, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, Map<String, AggregationRuntime> aggregationMap, Map<String, Window> windowMap, LockSynchronizer lockSynchronizer, String queryIndex) {
    List<VariableExpressionExecutor> executors = new ArrayList<VariableExpressionExecutor>();
    QueryRuntime queryRuntime;
    Element nameElement = null;
    LatencyTracker latencyTracker = null;
    LockWrapper lockWrapper = null;
    try {
        nameElement = AnnotationHelper.getAnnotationElement("info", "name", query.getAnnotations());
        String queryName = null;
        if (nameElement != null) {
            queryName = nameElement.getValue();
        } else {
            queryName = "query_" + queryIndex + "_" + UUID.randomUUID().toString();
        }
        latencyTracker = QueryParserHelper.createLatencyTracker(siddhiAppContext, queryName, SiddhiConstants.METRIC_INFIX_QUERIES, null);
        OutputStream.OutputEventType outputEventType = query.getOutputStream().getOutputEventType();
        boolean outputExpectsExpiredEvents = false;
        if (outputEventType != OutputStream.OutputEventType.CURRENT_EVENTS) {
            outputExpectsExpiredEvents = true;
        }
        StreamRuntime streamRuntime = InputStreamParser.parse(query.getInputStream(), siddhiAppContext, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, windowMap, aggregationMap, executors, latencyTracker, outputExpectsExpiredEvents, queryName);
        QuerySelector selector = SelectorParser.parse(query.getSelector(), query.getOutputStream(), siddhiAppContext, streamRuntime.getMetaComplexEvent(), tableMap, executors, queryName, SiddhiConstants.UNKNOWN_STATE);
        boolean isWindow = query.getInputStream() instanceof JoinInputStream;
        if (!isWindow && query.getInputStream() instanceof SingleInputStream) {
            for (StreamHandler streamHandler : ((SingleInputStream) query.getInputStream()).getStreamHandlers()) {
                if (streamHandler instanceof org.wso2.siddhi.query.api.execution.query.input.handler.Window) {
                    isWindow = true;
                    break;
                }
            }
        }
        Element synchronizedElement = AnnotationHelper.getAnnotationElement("synchronized", null, query.getAnnotations());
        if (synchronizedElement != null) {
            if (!("false".equalsIgnoreCase(synchronizedElement.getValue()))) {
                // Query LockWrapper does not need a unique
                lockWrapper = new LockWrapper("");
                // id since it will
                // not be passed to the LockSynchronizer.
                // LockWrapper does not have a default lock
                lockWrapper.setLock(new ReentrantLock());
            }
        } else {
            if (isWindow || !(streamRuntime instanceof SingleStreamRuntime)) {
                if (streamRuntime instanceof JoinStreamRuntime) {
                    // If at least one Window is involved in the join, use the LockWrapper of that window
                    // for the query as well.
                    // If join is between two EventWindows, sync the locks of the LockWrapper of those windows
                    // and use either of them for query.
                    MetaStateEvent metaStateEvent = (MetaStateEvent) streamRuntime.getMetaComplexEvent();
                    MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
                    if (metaStreamEvents[0].getEventType() == EventType.WINDOW && metaStreamEvents[1].getEventType() == EventType.WINDOW) {
                        LockWrapper leftLockWrapper = windowMap.get(metaStreamEvents[0].getLastInputDefinition().getId()).getLock();
                        LockWrapper rightLockWrapper = windowMap.get(metaStreamEvents[1].getLastInputDefinition().getId()).getLock();
                        if (!leftLockWrapper.equals(rightLockWrapper)) {
                            // Sync the lock across both wrappers
                            lockSynchronizer.sync(leftLockWrapper, rightLockWrapper);
                        }
                        // Can use either leftLockWrapper or rightLockWrapper since both of them will hold the
                        // same lock internally
                        // If either of their lock is updated later, the other lock also will be update by the
                        // LockSynchronizer.
                        lockWrapper = leftLockWrapper;
                    } else if (metaStreamEvents[0].getEventType() == EventType.WINDOW) {
                        // Share the same wrapper as the query lock wrapper
                        lockWrapper = windowMap.get(metaStreamEvents[0].getLastInputDefinition().getId()).getLock();
                    } else if (metaStreamEvents[1].getEventType() == EventType.WINDOW) {
                        // Share the same wrapper as the query lock wrapper
                        lockWrapper = windowMap.get(metaStreamEvents[1].getLastInputDefinition().getId()).getLock();
                    } else {
                        // Join does not contain any Window
                        // Query LockWrapper does not need a unique
                        lockWrapper = new LockWrapper("");
                        // id since
                        // it will not be passed to the LockSynchronizer.
                        // LockWrapper does not have a default lock
                        lockWrapper.setLock(new ReentrantLock());
                    }
                } else {
                    lockWrapper = new LockWrapper("");
                    lockWrapper.setLock(new ReentrantLock());
                }
            }
        }
        OutputRateLimiter outputRateLimiter = OutputParser.constructOutputRateLimiter(query.getOutputStream().getId(), query.getOutputRate(), query.getSelector().getGroupByList().size() != 0, isWindow, siddhiAppContext.getScheduledExecutorService(), siddhiAppContext, queryName);
        if (outputRateLimiter instanceof WrappedSnapshotOutputRateLimiter) {
            selector.setBatchingEnabled(false);
        }
        siddhiAppContext.addEternalReferencedHolder(outputRateLimiter);
        OutputCallback outputCallback = OutputParser.constructOutputCallback(query.getOutputStream(), streamRuntime.getMetaComplexEvent().getOutputStreamDefinition(), tableMap, windowMap, siddhiAppContext, !(streamRuntime instanceof SingleStreamRuntime), queryName);
        QueryParserHelper.reduceMetaComplexEvent(streamRuntime.getMetaComplexEvent());
        QueryParserHelper.updateVariablePosition(streamRuntime.getMetaComplexEvent(), executors);
        QueryParserHelper.initStreamRuntime(streamRuntime, streamRuntime.getMetaComplexEvent(), lockWrapper, queryName);
        selector.setEventPopulator(StateEventPopulatorFactory.constructEventPopulator(streamRuntime.getMetaComplexEvent()));
        queryRuntime = new QueryRuntime(query, siddhiAppContext, streamRuntime, selector, outputRateLimiter, outputCallback, streamRuntime.getMetaComplexEvent(), lockWrapper != null, queryName);
        if (outputRateLimiter instanceof WrappedSnapshotOutputRateLimiter) {
            selector.setBatchingEnabled(false);
            ((WrappedSnapshotOutputRateLimiter) outputRateLimiter).init(streamRuntime.getMetaComplexEvent().getOutputStreamDefinition().getAttributeList().size(), selector.getAttributeProcessorList(), streamRuntime.getMetaComplexEvent());
        }
        outputRateLimiter.init(siddhiAppContext, lockWrapper, queryName);
    } catch (DuplicateDefinitionException e) {
        if (nameElement != null) {
            throw new DuplicateDefinitionException(e.getMessageWithOutContext() + ", when creating query " + nameElement.getValue(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext.getName(), siddhiAppContext.getSiddhiAppString());
        } else {
            throw new DuplicateDefinitionException(e.getMessage(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext.getName(), siddhiAppContext.getSiddhiAppString());
        }
    } catch (Throwable t) {
        ExceptionUtil.populateQueryContext(t, query, siddhiAppContext);
        throw t;
    }
    return queryRuntime;
}

Example 34 with VariableExpressionExecutor

use of org.wso2.siddhi.core.executor.VariableExpressionExecutor in project siddhi by wso2.

the class SelectorParser method parse.

/**
 * Parse Selector portion of a query and return corresponding QuerySelector.
 *
 * @param selector                    selector to be parsed
 * @param outputStream                output stream
 * @param siddhiAppContext            query to be parsed
 * @param metaComplexEvent            Meta event used to collect execution info of stream associated with query
 * @param tableMap                    Table Map
 * @param variableExpressionExecutors variable expression executors
 * @param queryName                   query name of selector belongs to.
 * @param metaPosition                helps to identify the meta position of aggregates
 * @return QuerySelector
 */
public static QuerySelector parse(Selector selector, OutputStream outputStream, SiddhiAppContext siddhiAppContext, MetaComplexEvent metaComplexEvent, Map<String, Table> tableMap, List<VariableExpressionExecutor> variableExpressionExecutors, String queryName, int metaPosition) {
    boolean currentOn = false;
    boolean expiredOn = false;
    String id = null;
    if (outputStream.getOutputEventType() == OutputStream.OutputEventType.CURRENT_EVENTS || outputStream.getOutputEventType() == OutputStream.OutputEventType.ALL_EVENTS) {
        currentOn = true;
    }
    if (outputStream.getOutputEventType() == OutputStream.OutputEventType.EXPIRED_EVENTS || outputStream.getOutputEventType() == OutputStream.OutputEventType.ALL_EVENTS) {
        expiredOn = true;
    }
    id = outputStream.getId();
    containsAggregatorThreadLocal.remove();
    QuerySelector querySelector = new QuerySelector(id, selector, currentOn, expiredOn, siddhiAppContext);
    List<AttributeProcessor> attributeProcessors = getAttributeProcessors(selector, id, siddhiAppContext, metaComplexEvent, tableMap, variableExpressionExecutors, outputStream, queryName, metaPosition);
    querySelector.setAttributeProcessorList(attributeProcessors, "true".equals(containsAggregatorThreadLocal.get()));
    containsAggregatorThreadLocal.remove();
    ConditionExpressionExecutor havingCondition = generateHavingExecutor(selector.getHavingExpression(), metaComplexEvent, siddhiAppContext, tableMap, variableExpressionExecutors, queryName);
    querySelector.setHavingConditionExecutor(havingCondition, "true".equals(containsAggregatorThreadLocal.get()));
    containsAggregatorThreadLocal.remove();
    if (!selector.getGroupByList().isEmpty()) {
        querySelector.setGroupByKeyGenerator(new GroupByKeyGenerator(selector.getGroupByList(), metaComplexEvent, SiddhiConstants.UNKNOWN_STATE, null, variableExpressionExecutors, siddhiAppContext, queryName));
    }
    if (!selector.getOrderByList().isEmpty()) {
        querySelector.setOrderByEventComparator(new OrderByEventComparator(selector.getOrderByList(), metaComplexEvent, SiddhiConstants.HAVING_STATE, null, variableExpressionExecutors, siddhiAppContext, queryName));
    }
    if (selector.getLimit() != null) {
        ExpressionExecutor expressionExecutor = ExpressionParser.parseExpression((Expression) selector.getLimit(), metaComplexEvent, SiddhiConstants.HAVING_STATE, tableMap, variableExpressionExecutors, siddhiAppContext, false, 0, queryName);
        containsAggregatorThreadLocal.remove();
        querySelector.setLimit(((Number) (((ConstantExpressionExecutor) expressionExecutor).getValue())).longValue());
    }
    return querySelector;
}

Example 35 with VariableExpressionExecutor

use of org.wso2.siddhi.core.executor.VariableExpressionExecutor in project siddhi by wso2.

the class StateInputStreamParser method parseInputStream.

public static StateStreamRuntime parseInputStream(StateInputStream stateInputStream, SiddhiAppContext siddhiAppContext, MetaStateEvent metaStateEvent, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, List<VariableExpressionExecutor> variableExpressionExecutors, LatencyTracker latencyTracker, String queryName) {
    Map<String, ProcessStreamReceiver> processStreamReceiverMap = new HashMap<String, ProcessStreamReceiver>();
    StateStreamRuntime stateStreamRuntime = new StateStreamRuntime(siddhiAppContext, metaStateEvent);
    String defaultLockKey = "";
    for (String streamId : stateInputStream.getAllStreamIds()) {
        int streamCount = stateInputStream.getStreamCount(streamId);
        if (streamCount == 1) {
            if (stateInputStream.getStateType() == StateInputStream.Type.SEQUENCE) {
                processStreamReceiverMap.put(streamId, new SequenceSingleProcessStreamReceiver(streamId, stateStreamRuntime, defaultLockKey, latencyTracker, queryName, siddhiAppContext));
            } else {
                processStreamReceiverMap.put(streamId, new PatternSingleProcessStreamReceiver(streamId, defaultLockKey, latencyTracker, queryName, siddhiAppContext));
            }
        } else {
            if (stateInputStream.getStateType() == StateInputStream.Type.SEQUENCE) {
                processStreamReceiverMap.put(streamId, new SequenceMultiProcessStreamReceiver(streamId, streamCount, stateStreamRuntime, latencyTracker, queryName, siddhiAppContext));
            } else {
                processStreamReceiverMap.put(streamId, new PatternMultiProcessStreamReceiver(streamId, streamCount, latencyTracker, queryName, siddhiAppContext));
            }
        }
    }
    StateElement stateElement = stateInputStream.getStateElement();
    InnerStateRuntime innerStateRuntime = parse(stateElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, null, null, stateInputStream.getStateType(), new ArrayList<Map.Entry<Long, Set<Integer>>>(), latencyTracker, queryName);
    stateStreamRuntime.setInnerStateRuntime(innerStateRuntime);
    ((StreamPreStateProcessor) innerStateRuntime.getFirstProcessor()).setThisLastProcessor((StreamPostStateProcessor) innerStateRuntime.getLastProcessor());
    return stateStreamRuntime;
}