Examples with StreamEventConverter io.siddhi.core.event.stream.converter.StreamEventConverter used on opensource projects

Example 1 with StreamEventConverter

use of io.siddhi.core.event.stream.converter.StreamEventConverter in project siddhi by wso2.

the class MultiProcessStreamReceiver method receive.

@Override
public void receive(List<Event> events) {
    List<ReturnEventHolder> returnEventHolderList = new ArrayList<>(eventSequence.length);
    synchronized (patternSyncObject) {
        for (Event event : events) {
            try {
                multiProcessReturn.set(new ReturnEventHolder());
                stabilizeStates(event.getTimestamp());
                for (int anEventSequence : eventSequence) {
                    StreamEventConverter aStreamEventConverter = streamEventConverters[anEventSequence];
                    StreamEventFactory aStreamEventFactory = streamEventFactorys[anEventSequence];
                    StreamEvent newEvent = aStreamEventFactory.newInstance();
                    aStreamEventConverter.convertEvent(event, newEvent);
                    process(anEventSequence, newEvent);
                    if (multiProcessReturn.get() != null && multiProcessReturn.get().complexEventChunk != null) {
                        returnEventHolderList.add(multiProcessReturn.get());
                        multiProcessReturn.set(new ReturnEventHolder());
                    }
                }
            } finally {
                multiProcessReturn.set(null);
            }
        }
    }
    for (ReturnEventHolder returnEventHolder : returnEventHolderList) {
        outputRateLimiter.sendToCallBacks(returnEventHolder.complexEventChunk);
    }
}

Example 2 with StreamEventConverter

use of io.siddhi.core.event.stream.converter.StreamEventConverter in project siddhi by wso2.

the class MultiProcessStreamReceiver method receive.

@Override
public void receive(ComplexEvent complexEvent) {
    ComplexEvent aComplexEvent = complexEvent;
    List<ReturnEventHolder> returnEventHolderList = new ArrayList<>(eventSequence.length);
    synchronized (patternSyncObject) {
        while (aComplexEvent != null) {
            try {
                multiProcessReturn.set(new ReturnEventHolder());
                stabilizeStates(aComplexEvent.getTimestamp());
                for (int anEventSequence : eventSequence) {
                    StreamEventConverter aStreamEventConverter = streamEventConverters[anEventSequence];
                    StreamEventFactory aStreamEventFactory = streamEventFactorys[anEventSequence];
                    StreamEvent newEvent = aStreamEventFactory.newInstance();
                    aStreamEventConverter.convertComplexEvent(aComplexEvent, newEvent);
                    process(anEventSequence, newEvent);
                    if (multiProcessReturn.get() != null && multiProcessReturn.get().complexEventChunk != null) {
                        returnEventHolderList.add(multiProcessReturn.get());
                        multiProcessReturn.set(new ReturnEventHolder());
                    }
                }
            } finally {
                multiProcessReturn.set(null);
            }
            aComplexEvent = aComplexEvent.getNext();
        }
        for (ReturnEventHolder returnEventHolder : returnEventHolderList) {
            outputRateLimiter.sendToCallBacks(returnEventHolder.complexEventChunk);
        }
    }
}

Example 3 with StreamEventConverter

use of io.siddhi.core.event.stream.converter.StreamEventConverter in project siddhi by wso2.

the class MultiProcessStreamReceiver method receive.

@Override
public void receive(long timestamp, Object[] data) {
    List<ReturnEventHolder> returnEventHolderList = new ArrayList<>(eventSequence.length);
    synchronized (patternSyncObject) {
        try {
            multiProcessReturn.set(new ReturnEventHolder());
            stabilizeStates(timestamp);
            for (int anEventSequence : eventSequence) {
                StreamEventConverter aStreamEventConverter = streamEventConverters[anEventSequence];
                StreamEventFactory aStreamEventFactory = streamEventFactorys[anEventSequence];
                StreamEvent newEvent = aStreamEventFactory.newInstance();
                aStreamEventConverter.convertData(timestamp, data, newEvent);
                process(anEventSequence, newEvent);
                if (multiProcessReturn.get() != null && multiProcessReturn.get().complexEventChunk != null) {
                    returnEventHolderList.add(multiProcessReturn.get());
                    multiProcessReturn.set(new ReturnEventHolder());
                }
            }
        } finally {
            multiProcessReturn.set(null);
        }
    }
    for (ReturnEventHolder returnEventHolder : returnEventHolderList) {
        outputRateLimiter.sendToCallBacks(returnEventHolder.complexEventChunk);
    }
}

Example 4 with StreamEventConverter

use of io.siddhi.core.event.stream.converter.StreamEventConverter in project siddhi by wso2.

the class MultiProcessStreamReceiver method receive.

@Override
public void receive(Event event) {
    List<ReturnEventHolder> returnEventHolderList = new ArrayList<>(eventSequence.length);
    synchronized (patternSyncObject) {
        try {
            multiProcessReturn.set(new ReturnEventHolder());
            stabilizeStates(event.getTimestamp());
            for (int anEventSequence : eventSequence) {
                StreamEventConverter aStreamEventConverter = streamEventConverters[anEventSequence];
                StreamEventFactory aStreamEventFactory = streamEventFactorys[anEventSequence];
                StreamEvent newEvent = aStreamEventFactory.newInstance();
                aStreamEventConverter.convertEvent(event, newEvent);
                process(anEventSequence, newEvent);
                if (multiProcessReturn.get() != null && multiProcessReturn.get().complexEventChunk != null) {
                    returnEventHolderList.add(multiProcessReturn.get());
                    multiProcessReturn.set(new ReturnEventHolder());
                }
            }
        } finally {
            multiProcessReturn.set(null);
        }
    }
    for (ReturnEventHolder returnEventHolder : returnEventHolderList) {
        outputRateLimiter.sendToCallBacks(returnEventHolder.complexEventChunk);
    }
}

Example 5 with StreamEventConverter

use of io.siddhi.core.event.stream.converter.StreamEventConverter in project siddhi by wso2.

the class OutputParser method constructOutputCallback.

public static OutputCallback constructOutputCallback(final OutputStream outStream, StreamDefinition outputStreamDefinition, Map<String, Table> tableMap, Map<String, Window> eventWindowMap, boolean convertToStreamEvent, SiddhiQueryContext siddhiQueryContext) {
    String id = outStream.getId();
    Table table = null;
    Window window = null;
    if (id != null) {
        table = tableMap.get(id);
        window = eventWindowMap.get(id);
    }
    StreamEventFactory streamEventFactory = null;
    StreamEventConverter streamEventConverter = null;
    MetaStreamEvent tableMetaStreamEvent = null;
    if (table != null) {
        tableMetaStreamEvent = new MetaStreamEvent();
        tableMetaStreamEvent.setEventType(MetaStreamEvent.EventType.TABLE);
        TableDefinition matchingTableDefinition = TableDefinition.id("");
        for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
            tableMetaStreamEvent.addOutputData(attribute);
            matchingTableDefinition.attribute(attribute.getName(), attribute.getType());
        }
        matchingTableDefinition.setQueryContextStartIndex(outStream.getQueryContextStartIndex());
        matchingTableDefinition.setQueryContextEndIndex(outStream.getQueryContextEndIndex());
        tableMetaStreamEvent.addInputDefinition(matchingTableDefinition);
        streamEventFactory = new StreamEventFactory(tableMetaStreamEvent);
        streamEventConverter = new ZeroStreamEventConverter();
    }
    // Construct CallBack
    if (outStream instanceof InsertIntoStream || outStream instanceof ReturnStream) {
        if (window != null) {
            if (!siddhiQueryContext.isPartitioned()) {
                return new InsertIntoWindowCallback(window, outputStreamDefinition, siddhiQueryContext.getName());
            } else {
                return new InsertIntoWindowEndPartitionCallback(window, outputStreamDefinition, siddhiQueryContext.getName());
            }
        } else if (table != null) {
            DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
            return new InsertIntoTableCallback(table, outputStreamDefinition, convertToStreamEvent, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
        } else {
            if (!siddhiQueryContext.isPartitioned() || outputStreamDefinition.getId().startsWith("#")) {
                return new InsertIntoStreamCallback(outputStreamDefinition, siddhiQueryContext.getName());
            } else {
                return new InsertIntoStreamEndPartitionCallback(outputStreamDefinition, siddhiQueryContext.getName());
            }
        }
    } else if (outStream instanceof DeleteStream || outStream instanceof UpdateStream || outStream instanceof UpdateOrInsertStream) {
        if (table != null) {
            if (outStream instanceof UpdateStream) {
                if (((UpdateStream) outStream).getUpdateSet() == null) {
                    TableDefinition tableDefinition = table.getTableDefinition();
                    for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
                        if (!tableDefinition.getAttributeList().contains(attribute)) {
                            throw new SiddhiAppCreationException("Attribute " + attribute + " does not exist on " + "Event Table " + tableDefinition, outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
                        }
                    }
                }
            }
            if (outStream instanceof UpdateOrInsertStream) {
                TableDefinition tableDefinition = table.getTableDefinition();
                for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
                    if (!tableDefinition.getAttributeList().contains(attribute)) {
                        throw new SiddhiAppCreationException("Attribute " + attribute + " does not exist on " + "Event Table " + tableDefinition, outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
                    }
                }
            }
            if (outStream instanceof DeleteStream) {
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((DeleteStream) outStream).getOnDeleteExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new DeleteTableCallback(table, compiledCondition, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create delete for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getName(), siddhiQueryContext.getSiddhiAppContext().getSiddhiAppString());
                }
            } else if (outStream instanceof UpdateStream) {
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    UpdateSet updateSet = ((UpdateStream) outStream).getUpdateSet();
                    if (updateSet == null) {
                        updateSet = new UpdateSet();
                        for (Attribute attribute : matchingMetaInfoHolder.getMatchingStreamDefinition().getAttributeList()) {
                            updateSet.set(new Variable(attribute.getName()), new Variable(attribute.getName()));
                        }
                    }
                    CompiledUpdateSet compiledUpdateSet = table.compileUpdateSet(updateSet, matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new UpdateTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getSiddhiAppContext());
                }
            } else {
                DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateOrInsertStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    UpdateSet updateSet = ((UpdateOrInsertStream) outStream).getUpdateSet();
                    if (updateSet == null) {
                        updateSet = new UpdateSet();
                        for (Attribute attribute : matchingMetaInfoHolder.getMatchingStreamDefinition().getAttributeList()) {
                            updateSet.set(new Variable(attribute.getName()), new Variable(attribute.getName()));
                        }
                    }
                    CompiledUpdateSet compiledUpdateSet = table.compileUpdateSet(updateSet, matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new UpdateOrInsertTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update or insert into for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getSiddhiAppContext());
                }
            }
        } else {
            throw new SiddhiAppCreationException("Event table with id :" + id + " does not exist", outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
        }
    } else {
        throw new SiddhiAppCreationException(outStream.getClass().getName() + " not supported", outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
    }
}