Examples with BasicSingleInputStream io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream used on opensource projects

Example 1 with BasicSingleInputStream

use of io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream in project siddhi by wso2.

the class StateInputStreamParser method parse.

private static InnerStateRuntime parse(StateElement stateElement, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, MetaStateEvent metaStateEvent, List<VariableExpressionExecutor> variableExpressionExecutors, Map<String, ProcessStreamReceiver> processStreamReceiverMap, StreamPreStateProcessor streamPreStateProcessor, StreamPostStateProcessor streamPostStateProcessor, StateInputStream.Type stateType, boolean multiValue, List<PreStateProcessor> preStateProcessors, boolean isStartState, List<PreStateProcessor> startupPreStateProcessors, SiddhiQueryContext siddhiQueryContext) {
    if (stateElement instanceof StreamStateElement) {
        BasicSingleInputStream basicSingleInputStream = ((StreamStateElement) stateElement).getBasicSingleInputStream();
        SingleStreamRuntime singleStreamRuntime = SingleInputStreamParser.parseInputStream(basicSingleInputStream, variableExpressionExecutors, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, processStreamReceiverMap.get(basicSingleInputStream.getUniqueStreamIds().get(0)), false, false, false, multiValue, siddhiQueryContext);
        int stateIndex = metaStateEvent.getStreamEventCount() - 1;
        if (streamPreStateProcessor == null) {
            if (stateElement instanceof AbsentStreamStateElement) {
                AbsentStreamPreStateProcessor absentProcessor = new AbsentStreamPreStateProcessor(stateType, ((AbsentStreamStateElement) stateElement).getWaitingTime().value());
                // Set the scheduler
                startupPreStateProcessors.add(absentProcessor);
                EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiQueryContext.getSiddhiAppContext());
                entryValveProcessor.setToLast(absentProcessor);
                Scheduler scheduler = SchedulerParser.parse(entryValveProcessor, siddhiQueryContext);
                absentProcessor.setScheduler(scheduler);
                // Assign the AbsentStreamPreStateProcessor to streamPreStateProcessor
                streamPreStateProcessor = absentProcessor;
            } else {
                streamPreStateProcessor = new StreamPreStateProcessor(stateType);
            }
            streamPreStateProcessor.init(siddhiQueryContext);
        }
        streamPreStateProcessor.setStateId(stateIndex);
        streamPreStateProcessor.setStartState(isStartState);
        streamPreStateProcessor.setNextProcessor(singleStreamRuntime.getProcessorChain());
        singleStreamRuntime.setProcessorChain(streamPreStateProcessor);
        if (streamPostStateProcessor == null) {
            if (stateElement instanceof AbsentStreamStateElement) {
                streamPostStateProcessor = new AbsentStreamPostStateProcessor();
            } else {
                streamPostStateProcessor = new StreamPostStateProcessor();
            }
        }
        streamPostStateProcessor.setStateId(stateIndex);
        singleStreamRuntime.getProcessorChain().setToLast(streamPostStateProcessor);
        streamPostStateProcessor.setThisStatePreProcessor(streamPreStateProcessor);
        streamPreStateProcessor.setThisStatePostProcessor(streamPostStateProcessor);
        streamPreStateProcessor.setThisLastProcessor(streamPostStateProcessor);
        StreamInnerStateRuntime innerStateRuntime = new StreamInnerStateRuntime(stateType);
        innerStateRuntime.setFirstProcessor(streamPreStateProcessor);
        innerStateRuntime.setLastProcessor(streamPostStateProcessor);
        innerStateRuntime.addStreamRuntime(singleStreamRuntime);
        preStateProcessors.add(streamPreStateProcessor);
        return innerStateRuntime;
    } else if (stateElement instanceof NextStateElement) {
        StateElement currentElement = ((NextStateElement) stateElement).getStateElement();
        InnerStateRuntime currentInnerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, multiValue, preStateProcessors, isStartState, startupPreStateProcessors, siddhiQueryContext);
        StateElement nextElement = ((NextStateElement) stateElement).getNextStateElement();
        InnerStateRuntime nextInnerStateRuntime = parse(nextElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, multiValue, preStateProcessors, false, startupPreStateProcessors, siddhiQueryContext);
        currentInnerStateRuntime.getLastProcessor().setNextStatePreProcessor(nextInnerStateRuntime.getFirstProcessor());
        NextInnerStateRuntime nextStateRuntime = new NextInnerStateRuntime(currentInnerStateRuntime, nextInnerStateRuntime, stateType);
        nextStateRuntime.setFirstProcessor(currentInnerStateRuntime.getFirstProcessor());
        nextStateRuntime.setLastProcessor(nextInnerStateRuntime.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : currentInnerStateRuntime.getSingleStreamRuntimeList()) {
            nextStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        for (SingleStreamRuntime singleStreamRuntime : nextInnerStateRuntime.getSingleStreamRuntimeList()) {
            nextStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        return nextStateRuntime;
    } else if (stateElement instanceof EveryStateElement) {
        StateElement currentElement = ((EveryStateElement) stateElement).getStateElement();
        List<PreStateProcessor> withinEveryPreStateProcessors = new ArrayList<>();
        InnerStateRuntime innerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, multiValue, withinEveryPreStateProcessors, isStartState, startupPreStateProcessors, siddhiQueryContext);
        EveryInnerStateRuntime everyInnerStateRuntime = new EveryInnerStateRuntime(innerStateRuntime, stateType);
        everyInnerStateRuntime.setFirstProcessor(innerStateRuntime.getFirstProcessor());
        everyInnerStateRuntime.setLastProcessor(innerStateRuntime.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime.getSingleStreamRuntimeList()) {
            everyInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        everyInnerStateRuntime.getLastProcessor().setNextEveryStatePreProcessor(everyInnerStateRuntime.getFirstProcessor());
        for (PreStateProcessor preStateProcessor : withinEveryPreStateProcessors) {
            preStateProcessor.setWithinEveryPreStateProcessor(everyInnerStateRuntime.getFirstProcessor());
        }
        preStateProcessors.addAll(withinEveryPreStateProcessors);
        return everyInnerStateRuntime;
    } else if (stateElement instanceof LogicalStateElement) {
        LogicalStateElement.Type type = ((LogicalStateElement) stateElement).getType();
        LogicalPreStateProcessor logicalPreStateProcessor1;
        if (((LogicalStateElement) stateElement).getStreamStateElement1() instanceof AbsentStreamStateElement) {
            logicalPreStateProcessor1 = new AbsentLogicalPreStateProcessor(type, stateType, ((AbsentStreamStateElement) ((LogicalStateElement) stateElement).getStreamStateElement1()).getWaitingTime());
            // Set the scheduler
            startupPreStateProcessors.add(logicalPreStateProcessor1);
            EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiQueryContext.getSiddhiAppContext());
            entryValveProcessor.setToLast(logicalPreStateProcessor1);
            Scheduler scheduler = SchedulerParser.parse(entryValveProcessor, siddhiQueryContext);
            ((SchedulingProcessor) logicalPreStateProcessor1).setScheduler(scheduler);
        } else {
            logicalPreStateProcessor1 = new LogicalPreStateProcessor(type, stateType);
        }
        logicalPreStateProcessor1.init(siddhiQueryContext);
        LogicalPostStateProcessor logicalPostStateProcessor1;
        if (((LogicalStateElement) stateElement).getStreamStateElement1() instanceof AbsentStreamStateElement) {
            logicalPostStateProcessor1 = new AbsentLogicalPostStateProcessor(type);
        } else {
            logicalPostStateProcessor1 = new LogicalPostStateProcessor(type);
        }
        LogicalPreStateProcessor logicalPreStateProcessor2;
        if (((LogicalStateElement) stateElement).getStreamStateElement2() instanceof AbsentStreamStateElement) {
            logicalPreStateProcessor2 = new AbsentLogicalPreStateProcessor(type, stateType, ((AbsentStreamStateElement) ((LogicalStateElement) stateElement).getStreamStateElement2()).getWaitingTime());
            startupPreStateProcessors.add(logicalPreStateProcessor2);
            EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiQueryContext.getSiddhiAppContext());
            entryValveProcessor.setToLast(logicalPreStateProcessor2);
            Scheduler scheduler = SchedulerParser.parse(entryValveProcessor, siddhiQueryContext);
            ((SchedulingProcessor) logicalPreStateProcessor2).setScheduler(scheduler);
        } else {
            logicalPreStateProcessor2 = new LogicalPreStateProcessor(type, stateType);
        }
        logicalPreStateProcessor2.init(siddhiQueryContext);
        LogicalPostStateProcessor logicalPostStateProcessor2;
        if (((LogicalStateElement) stateElement).getStreamStateElement2() instanceof AbsentStreamStateElement) {
            logicalPostStateProcessor2 = new AbsentLogicalPostStateProcessor(type);
        } else {
            logicalPostStateProcessor2 = new LogicalPostStateProcessor(type);
        }
        logicalPostStateProcessor1.setPartnerPreStateProcessor(logicalPreStateProcessor2);
        logicalPostStateProcessor2.setPartnerPreStateProcessor(logicalPreStateProcessor1);
        logicalPostStateProcessor1.setPartnerPostStateProcessor(logicalPostStateProcessor2);
        logicalPostStateProcessor2.setPartnerPostStateProcessor(logicalPostStateProcessor1);
        logicalPreStateProcessor1.setPartnerStatePreProcessor(logicalPreStateProcessor2);
        logicalPreStateProcessor2.setPartnerStatePreProcessor(logicalPreStateProcessor1);
        StateElement stateElement2 = ((LogicalStateElement) stateElement).getStreamStateElement2();
        InnerStateRuntime innerStateRuntime2 = parse(stateElement2, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, logicalPreStateProcessor2, logicalPostStateProcessor2, stateType, multiValue, preStateProcessors, isStartState, startupPreStateProcessors, siddhiQueryContext);
        StateElement stateElement1 = ((LogicalStateElement) stateElement).getStreamStateElement1();
        InnerStateRuntime innerStateRuntime1 = parse(stateElement1, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, logicalPreStateProcessor1, logicalPostStateProcessor1, stateType, multiValue, preStateProcessors, isStartState, startupPreStateProcessors, siddhiQueryContext);
        LogicalInnerStateRuntime logicalInnerStateRuntime = new LogicalInnerStateRuntime(innerStateRuntime1, innerStateRuntime2, stateType);
        logicalInnerStateRuntime.setFirstProcessor(innerStateRuntime1.getFirstProcessor());
        logicalInnerStateRuntime.setLastProcessor(innerStateRuntime2.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime2.getSingleStreamRuntimeList()) {
            logicalInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime1.getSingleStreamRuntimeList()) {
            logicalInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        return logicalInnerStateRuntime;
    } else if (stateElement instanceof CountStateElement) {
        int minCount = ((CountStateElement) stateElement).getMinCount();
        int maxCount = ((CountStateElement) stateElement).getMaxCount();
        if (minCount == SiddhiConstants.ANY) {
            minCount = 0;
        }
        if (maxCount == SiddhiConstants.ANY) {
            maxCount = Integer.MAX_VALUE;
        }
        CountPreStateProcessor countPreStateProcessor = new CountPreStateProcessor(minCount, maxCount, stateType);
        countPreStateProcessor.init(siddhiQueryContext);
        CountPostStateProcessor countPostStateProcessor = new CountPostStateProcessor(minCount, maxCount);
        countPreStateProcessor.setCountPostStateProcessor(countPostStateProcessor);
        StateElement currentElement = ((CountStateElement) stateElement).getStreamStateElement();
        InnerStateRuntime innerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, variableExpressionExecutors, processStreamReceiverMap, countPreStateProcessor, countPostStateProcessor, stateType, true, preStateProcessors, isStartState, startupPreStateProcessors, siddhiQueryContext);
        return new CountInnerStateRuntime((StreamInnerStateRuntime) innerStateRuntime);
    } else {
        throw new OperationNotSupportedException();
    }
}

Example 2 with BasicSingleInputStream

use of io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitDefinition_aggregation.

@Override
public AggregationDefinition visitDefinition_aggregation(@NotNull SiddhiQLParser.Definition_aggregationContext ctx) {
    // Read the name of the aggregation
    String aggregationName = (String) visitAggregation_name(ctx.aggregation_name());
    // Create the aggregation using the extracted aggregation name
    AggregationDefinition aggregationDefinition = AggregationDefinition.id(aggregationName);
    // Get all annotation and populate the aggregation
    for (SiddhiQLParser.AnnotationContext annotationContext : ctx.annotation()) {
        aggregationDefinition.annotation((Annotation) visit(annotationContext));
    }
    // Attach the input stream
    BasicSingleInputStream basicSingleInputStream = (BasicSingleInputStream) visit(ctx.standard_stream());
    aggregationDefinition.from(basicSingleInputStream);
    // Extract the selector and attach it to the new aggregation
    BasicSelector selector = (BasicSelector) visit(ctx.group_by_query_selection());
    aggregationDefinition.select(selector);
    // Get the variable (if available) and aggregate on that variable
    if (ctx.attribute_reference() != null) {
        Variable aggregatedBy = (Variable) visit(ctx.attribute_reference());
        aggregationDefinition.aggregateBy(aggregatedBy);
    }
    // Extract the specified time-durations and attache it to the aggregation definition
    TimePeriod timePeriod = (TimePeriod) visit(ctx.aggregation_time());
    aggregationDefinition.every(timePeriod);
    populateQueryContext(aggregationDefinition, ctx);
    return aggregationDefinition;
}

Example 3 with BasicSingleInputStream

use of io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitStandard_stream.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public SingleInputStream visitStandard_stream(@NotNull SiddhiQLParser.Standard_streamContext ctx) {
    // standard_stream
    // : io (basic_source_stream_handler)* window? (basic_source_stream_handler)*
    // ;
    Source source = (Source) visit(ctx.source());
    BasicSingleInputStream basicSingleInputStream = new BasicSingleInputStream(null, source.streamId, source.isInnerStream, source.isFaultStream);
    if (ctx.pre_window_handlers != null) {
        basicSingleInputStream.addStreamHandlers((List<StreamHandler>) visit(ctx.pre_window_handlers));
    }
    if (ctx.window() == null && ctx.post_window_handlers == null) {
        populateQueryContext(basicSingleInputStream, ctx);
        return basicSingleInputStream;
    } else if (ctx.window() != null) {
        SingleInputStream singleInputStream = new SingleInputStream(basicSingleInputStream, (Window) visit(ctx.window()));
        if (ctx.post_window_handlers != null) {
            singleInputStream.addStreamHandlers((List<StreamHandler>) visit(ctx.post_window_handlers));
        }
        populateQueryContext(singleInputStream, ctx);
        return singleInputStream;
    } else {
        throw newSiddhiParserException(ctx);
    }
}

Example 4 with BasicSingleInputStream

use of io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitJoin_source.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public Object visitJoin_source(@NotNull SiddhiQLParser.Join_sourceContext ctx) {
    // join_source
    // :io (basic_source_stream_handler)* window? (AS alias)?
    // ;
    Source source = (Source) visit(ctx.source());
    String streamAlias = null;
    if (ctx.alias() != null) {
        streamAlias = (String) visit(ctx.alias());
        activeStreams.remove(ctx.source().getText());
        activeStreams.add(streamAlias);
    }
    BasicSingleInputStream basicSingleInputStream = new BasicSingleInputStream(streamAlias, source.streamId, source.isInnerStream, source.isFaultStream);
    if (ctx.basic_source_stream_handlers() != null) {
        basicSingleInputStream.addStreamHandlers((List<StreamHandler>) visit(ctx.basic_source_stream_handlers()));
    }
    if (ctx.window() != null) {
        SingleInputStream inputStream = new SingleInputStream(basicSingleInputStream, (Window) visit(ctx.window()));
        populateQueryContext(inputStream, ctx);
        return inputStream;
    } else {
        populateQueryContext(basicSingleInputStream, ctx);
        return basicSingleInputStream;
    }
}

Example 5 with BasicSingleInputStream

use of io.siddhi.query.api.execution.query.input.stream.BasicSingleInputStream in project siddhi by wso2.

the class InputStreamParser method parse.

/**
 * Parse an InputStream returning corresponding StreamRuntime
 *
 * @param inputStream                input stream to be parsed
 * @param streamDefinitionMap        map containing user given stream definitions
 * @param tableDefinitionMap         table definition map
 * @param windowDefinitionMap        window definition map
 * @param aggregationDefinitionMap   aggregation definition map
 * @param tableMap                   Table Map
 * @param windowMap                  event window map
 * @param aggregationMap             aggregator map
 * @param executors                  List to hold VariableExpressionExecutors to update after query parsing
 * @param outputExpectsExpiredEvents is expired events sent as output
 * @param siddhiQueryContext         Siddhi query context.
 * @return StreamRuntime
 */
public static StreamRuntime parse(InputStream inputStream, Query query, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, Map<String, Window> windowMap, Map<String, AggregationRuntime> aggregationMap, List<VariableExpressionExecutor> executors, boolean outputExpectsExpiredEvents, SiddhiQueryContext siddhiQueryContext) {
    if (inputStream instanceof BasicSingleInputStream || inputStream instanceof SingleInputStream) {
        SingleInputStream singleInputStream = (SingleInputStream) inputStream;
        ProcessStreamReceiver processStreamReceiver = new ProcessStreamReceiver(singleInputStream.getStreamId(), siddhiQueryContext);
        return SingleInputStreamParser.parseInputStream((SingleInputStream) inputStream, executors, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, new MetaStreamEvent(), processStreamReceiver, true, outputExpectsExpiredEvents, false, false, siddhiQueryContext);
    } else if (inputStream instanceof JoinInputStream) {
        return JoinInputStreamParser.parseInputStream(((JoinInputStream) inputStream), query, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, windowMap, aggregationMap, executors, outputExpectsExpiredEvents, siddhiQueryContext);
    } else if (inputStream instanceof StateInputStream) {
        MetaStateEvent metaStateEvent = new MetaStateEvent(inputStream.getAllStreamIds().size());
        return StateInputStreamParser.parseInputStream(((StateInputStream) inputStream), metaStateEvent, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, executors, siddhiQueryContext);
    } else {
        throw new OperationNotSupportedException();
    }
}