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Example 1 with OutputRateLimiter

use of io.siddhi.core.query.output.ratelimit.OutputRateLimiter 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
 * @param partitioned              is the query partitioned
 * @param partitionId              The ID of the partition
 * @return queryRuntime
 */
public static QueryRuntimeImpl 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, boolean partitioned, String partitionId) {
    List<VariableExpressionExecutor> executors = new ArrayList<>();
    QueryRuntimeImpl queryRuntime;
    Element nameElement = null;
    LatencyTracker latencyTracker = null;
    LockWrapper lockWrapper = null;
    try {
        nameElement = AnnotationHelper.getAnnotationElement("info", "name", query.getAnnotations());
        String queryName;
        if (nameElement != null) {
            queryName = nameElement.getValue();
        } else {
            queryName = "query_" + queryIndex;
        }
        SiddhiQueryContext siddhiQueryContext = new SiddhiQueryContext(siddhiAppContext, queryName, partitionId);
        siddhiQueryContext.setPartitioned(partitioned);
        latencyTracker = QueryParserHelper.createLatencyTracker(siddhiAppContext, siddhiQueryContext.getName(), SiddhiConstants.METRIC_INFIX_QUERIES, null);
        siddhiQueryContext.setLatencyTracker(latencyTracker);
        OutputStream.OutputEventType outputEventType = query.getOutputStream().getOutputEventType();
        if (query.getOutputRate() != null && query.getOutputRate() instanceof SnapshotOutputRate) {
            if (outputEventType != OutputStream.OutputEventType.ALL_EVENTS) {
                throw new SiddhiAppCreationException("As query '" + siddhiQueryContext.getName() + "' is performing snapshot rate limiting, it can only insert '" + OutputStream.OutputEventType.ALL_EVENTS + "' but it is inserting '" + outputEventType + "'!", query.getOutputStream().getQueryContextStartIndex(), query.getOutputStream().getQueryContextEndIndex());
            }
        }
        siddhiQueryContext.setOutputEventType(outputEventType);
        boolean outputExpectsExpiredEvents = false;
        if (outputEventType != OutputStream.OutputEventType.CURRENT_EVENTS) {
            outputExpectsExpiredEvents = true;
        }
        StreamRuntime streamRuntime = InputStreamParser.parse(query.getInputStream(), query, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, windowMap, aggregationMap, executors, outputExpectsExpiredEvents, siddhiQueryContext);
        QuerySelector selector;
        if (streamRuntime.getQuerySelector() != null) {
            selector = streamRuntime.getQuerySelector();
        } else {
            selector = SelectorParser.parse(query.getSelector(), query.getOutputStream(), streamRuntime.getMetaComplexEvent(), tableMap, executors, SiddhiConstants.UNKNOWN_STATE, streamRuntime.getProcessingMode(), outputExpectsExpiredEvents, siddhiQueryContext);
        }
        boolean isWindow = query.getInputStream() instanceof JoinInputStream;
        if (!isWindow && query.getInputStream() instanceof SingleInputStream) {
            for (StreamHandler streamHandler : ((SingleInputStream) query.getInputStream()).getStreamHandlers()) {
                if (streamHandler instanceof io.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, siddhiQueryContext);
        if (outputRateLimiter instanceof WrappedSnapshotOutputRateLimiter) {
            selector.setBatchingEnabled(false);
        }
        boolean groupBy = !query.getSelector().getGroupByList().isEmpty();
        OutputCallback outputCallback = OutputParser.constructOutputCallback(query.getOutputStream(), streamRuntime.getMetaComplexEvent().getOutputStreamDefinition(), tableMap, windowMap, !(streamRuntime instanceof SingleStreamRuntime) || groupBy, siddhiQueryContext);
        QueryParserHelper.reduceMetaComplexEvent(streamRuntime.getMetaComplexEvent());
        QueryParserHelper.updateVariablePosition(streamRuntime.getMetaComplexEvent(), executors);
        QueryParserHelper.initStreamRuntime(streamRuntime, streamRuntime.getMetaComplexEvent(), lockWrapper, siddhiQueryContext.getName());
        // Update cache compile selection variable expression executors
        if (streamRuntime instanceof JoinStreamRuntime) {
            streamRuntime.getSingleStreamRuntimes().forEach((singleStreamRuntime -> {
                Processor processorChain = singleStreamRuntime.getProcessorChain();
                if (processorChain instanceof JoinProcessor) {
                    CompiledSelection compiledSelection = ((JoinProcessor) processorChain).getCompiledSelection();
                    if (compiledSelection instanceof AbstractQueryableRecordTable.CompiledSelectionWithCache) {
                        List<VariableExpressionExecutor> variableExpressionExecutors = ((AbstractQueryableRecordTable.CompiledSelectionWithCache) compiledSelection).getVariableExpressionExecutorsForQuerySelector();
                        QueryParserHelper.updateVariablePosition(streamRuntime.getMetaComplexEvent(), variableExpressionExecutors);
                    }
                }
            }));
        }
        selector.setEventPopulator(StateEventPopulatorFactory.constructEventPopulator(streamRuntime.getMetaComplexEvent()));
        queryRuntime = new QueryRuntimeImpl(query, streamRuntime, selector, outputRateLimiter, outputCallback, streamRuntime.getMetaComplexEvent(), siddhiQueryContext);
        if (outputRateLimiter instanceof WrappedSnapshotOutputRateLimiter) {
            selector.setBatchingEnabled(false);
            ((WrappedSnapshotOutputRateLimiter) outputRateLimiter).init(streamRuntime.getMetaComplexEvent().getOutputStreamDefinition().getAttributeList().size(), selector.getAttributeProcessorList(), streamRuntime.getMetaComplexEvent());
        }
        outputRateLimiter.init(lockWrapper, groupBy, siddhiQueryContext);
    } 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;
}
Also used : DuplicateDefinitionException(io.siddhi.query.api.exception.DuplicateDefinitionException) MetaStateEvent(io.siddhi.core.event.state.MetaStateEvent) AnnotationHelper(io.siddhi.query.api.util.AnnotationHelper) QueryRuntimeImpl(io.siddhi.core.query.QueryRuntimeImpl) OutputCallback(io.siddhi.core.query.output.callback.OutputCallback) SiddhiAppContext(io.siddhi.core.config.SiddhiAppContext) SiddhiAppCreationException(io.siddhi.core.exception.SiddhiAppCreationException) SingleInputStream(io.siddhi.query.api.execution.query.input.stream.SingleInputStream) VariableExpressionExecutor(io.siddhi.core.executor.VariableExpressionExecutor) SiddhiConstants(io.siddhi.core.util.SiddhiConstants) CompiledSelection(io.siddhi.core.util.collection.operator.CompiledSelection) QuerySelector(io.siddhi.core.query.selector.QuerySelector) ArrayList(java.util.ArrayList) StreamRuntime(io.siddhi.core.query.input.stream.StreamRuntime) AbstractDefinition(io.siddhi.query.api.definition.AbstractDefinition) Query(io.siddhi.query.api.execution.query.Query) Table(io.siddhi.core.table.Table) LockSynchronizer(io.siddhi.core.util.lock.LockSynchronizer) MetaStreamEvent(io.siddhi.core.event.stream.MetaStreamEvent) AggregationRuntime(io.siddhi.core.aggregation.AggregationRuntime) Map(java.util.Map) SiddhiQueryContext(io.siddhi.core.config.SiddhiQueryContext) SingleStreamRuntime(io.siddhi.core.query.input.stream.single.SingleStreamRuntime) WrappedSnapshotOutputRateLimiter(io.siddhi.core.query.output.ratelimit.snapshot.WrappedSnapshotOutputRateLimiter) LockWrapper(io.siddhi.core.util.lock.LockWrapper) ReentrantLock(java.util.concurrent.locks.ReentrantLock) QueryRuntime(io.siddhi.core.query.QueryRuntime) LatencyTracker(io.siddhi.core.util.statistics.LatencyTracker) EventType(io.siddhi.core.event.stream.MetaStreamEvent.EventType) OutputRateLimiter(io.siddhi.core.query.output.ratelimit.OutputRateLimiter) ExceptionUtil(io.siddhi.core.util.ExceptionUtil) StateEventPopulatorFactory(io.siddhi.core.event.state.populater.StateEventPopulatorFactory) Element(io.siddhi.query.api.annotation.Element) AbstractQueryableRecordTable(io.siddhi.core.table.record.AbstractQueryableRecordTable) List(java.util.List) JoinStreamRuntime(io.siddhi.core.query.input.stream.join.JoinStreamRuntime) OutputStream(io.siddhi.query.api.execution.query.output.stream.OutputStream) SnapshotOutputRate(io.siddhi.query.api.execution.query.output.ratelimit.SnapshotOutputRate) Processor(io.siddhi.core.query.processor.Processor) Window(io.siddhi.core.window.Window) QueryParserHelper(io.siddhi.core.util.parser.helper.QueryParserHelper) JoinProcessor(io.siddhi.core.query.input.stream.join.JoinProcessor) JoinInputStream(io.siddhi.query.api.execution.query.input.stream.JoinInputStream) StreamHandler(io.siddhi.query.api.execution.query.input.handler.StreamHandler) Processor(io.siddhi.core.query.processor.Processor) JoinProcessor(io.siddhi.core.query.input.stream.join.JoinProcessor) Element(io.siddhi.query.api.annotation.Element) OutputStream(io.siddhi.query.api.execution.query.output.stream.OutputStream) ArrayList(java.util.ArrayList) OutputCallback(io.siddhi.core.query.output.callback.OutputCallback) SiddhiQueryContext(io.siddhi.core.config.SiddhiQueryContext) AbstractQueryableRecordTable(io.siddhi.core.table.record.AbstractQueryableRecordTable) JoinInputStream(io.siddhi.query.api.execution.query.input.stream.JoinInputStream) SingleInputStream(io.siddhi.query.api.execution.query.input.stream.SingleInputStream) WrappedSnapshotOutputRateLimiter(io.siddhi.core.query.output.ratelimit.snapshot.WrappedSnapshotOutputRateLimiter) OutputRateLimiter(io.siddhi.core.query.output.ratelimit.OutputRateLimiter) StreamHandler(io.siddhi.query.api.execution.query.input.handler.StreamHandler) ArrayList(java.util.ArrayList) List(java.util.List) StreamRuntime(io.siddhi.core.query.input.stream.StreamRuntime) SingleStreamRuntime(io.siddhi.core.query.input.stream.single.SingleStreamRuntime) JoinStreamRuntime(io.siddhi.core.query.input.stream.join.JoinStreamRuntime) JoinProcessor(io.siddhi.core.query.input.stream.join.JoinProcessor) Window(io.siddhi.core.window.Window) ReentrantLock(java.util.concurrent.locks.ReentrantLock) DuplicateDefinitionException(io.siddhi.query.api.exception.DuplicateDefinitionException) SiddhiAppCreationException(io.siddhi.core.exception.SiddhiAppCreationException) SingleStreamRuntime(io.siddhi.core.query.input.stream.single.SingleStreamRuntime) JoinStreamRuntime(io.siddhi.core.query.input.stream.join.JoinStreamRuntime) VariableExpressionExecutor(io.siddhi.core.executor.VariableExpressionExecutor) QuerySelector(io.siddhi.core.query.selector.QuerySelector) LockWrapper(io.siddhi.core.util.lock.LockWrapper) MetaStateEvent(io.siddhi.core.event.state.MetaStateEvent) SnapshotOutputRate(io.siddhi.query.api.execution.query.output.ratelimit.SnapshotOutputRate) QueryRuntimeImpl(io.siddhi.core.query.QueryRuntimeImpl) CompiledSelection(io.siddhi.core.util.collection.operator.CompiledSelection) LatencyTracker(io.siddhi.core.util.statistics.LatencyTracker) WrappedSnapshotOutputRateLimiter(io.siddhi.core.query.output.ratelimit.snapshot.WrappedSnapshotOutputRateLimiter) MetaStreamEvent(io.siddhi.core.event.stream.MetaStreamEvent)

Aggregations

AggregationRuntime (io.siddhi.core.aggregation.AggregationRuntime)1 SiddhiAppContext (io.siddhi.core.config.SiddhiAppContext)1 SiddhiQueryContext (io.siddhi.core.config.SiddhiQueryContext)1 MetaStateEvent (io.siddhi.core.event.state.MetaStateEvent)1 StateEventPopulatorFactory (io.siddhi.core.event.state.populater.StateEventPopulatorFactory)1 MetaStreamEvent (io.siddhi.core.event.stream.MetaStreamEvent)1 EventType (io.siddhi.core.event.stream.MetaStreamEvent.EventType)1 SiddhiAppCreationException (io.siddhi.core.exception.SiddhiAppCreationException)1 VariableExpressionExecutor (io.siddhi.core.executor.VariableExpressionExecutor)1 QueryRuntime (io.siddhi.core.query.QueryRuntime)1 QueryRuntimeImpl (io.siddhi.core.query.QueryRuntimeImpl)1 StreamRuntime (io.siddhi.core.query.input.stream.StreamRuntime)1 JoinProcessor (io.siddhi.core.query.input.stream.join.JoinProcessor)1 JoinStreamRuntime (io.siddhi.core.query.input.stream.join.JoinStreamRuntime)1 SingleStreamRuntime (io.siddhi.core.query.input.stream.single.SingleStreamRuntime)1 OutputCallback (io.siddhi.core.query.output.callback.OutputCallback)1 OutputRateLimiter (io.siddhi.core.query.output.ratelimit.OutputRateLimiter)1 WrappedSnapshotOutputRateLimiter (io.siddhi.core.query.output.ratelimit.snapshot.WrappedSnapshotOutputRateLimiter)1 Processor (io.siddhi.core.query.processor.Processor)1 QuerySelector (io.siddhi.core.query.selector.QuerySelector)1