Examples with StreamEventConverter org.wso2.siddhi.core.event.stream.converter.StreamEventConverter used on opensource projects

Example 1 with StreamEventConverter

use of org.wso2.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;
    while (aComplexEvent != null) {
        synchronized (this) {
            stabilizeStates();
            for (int anEventSequence : eventSequence) {
                StreamEventConverter aStreamEventConverter = streamEventConverters[anEventSequence];
                StreamEventPool aStreamEventPool = streamEventPools[anEventSequence];
                StreamEvent borrowedEvent = aStreamEventPool.borrowEvent();
                aStreamEventConverter.convertComplexEvent(aComplexEvent, borrowedEvent);
                process(anEventSequence, borrowedEvent);
            }
        }
        aComplexEvent = aComplexEvent.getNext();
    }
}

Example 2 with StreamEventConverter

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

the class OutputCallback method constructMatchingStateEventChunk.

protected ComplexEventChunk<StateEvent> constructMatchingStateEventChunk(ComplexEventChunk matchingComplexEventChunk, boolean convertToStreamEvent, StateEventPool stateEventPool, int matchingStreamIndex, StreamEventPool streamEventPool, StreamEventConverter streamEventConverter) {
    ComplexEventChunk<StateEvent> stateEventChunk = new ComplexEventChunk<StateEvent>(matchingComplexEventChunk.isBatch());
    while (matchingComplexEventChunk.hasNext()) {
        ComplexEvent matchingComplexEvent = matchingComplexEventChunk.next();
        matchingComplexEventChunk.remove();
        StateEvent stateEvent = stateEventPool.borrowEvent();
        if (convertToStreamEvent) {
            StreamEvent borrowEvent = streamEventPool.borrowEvent();
            streamEventConverter.convertData(matchingComplexEvent.getTimestamp(), matchingComplexEvent.getOutputData(), matchingComplexEvent.getType() == ComplexEvent.Type.EXPIRED ? ComplexEvent.Type.CURRENT : matchingComplexEvent.getType(), borrowEvent);
            stateEvent.addEvent(matchingStreamIndex, borrowEvent);
        } else {
            stateEvent.addEvent(matchingStreamIndex, (StreamEvent) matchingComplexEvent);
        }
        stateEventChunk.add(stateEvent);
    }
    return stateEventChunk;
}

Example 3 with StreamEventConverter

use of org.wso2.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, SiddhiAppContext siddhiAppContext, boolean convertToStreamEvent, String queryName) {
    String id = outStream.getId();
    Table table = null;
    Window window = null;
    if (id != null) {
        table = tableMap.get(id);
        window = eventWindowMap.get(id);
    }
    StreamEventPool streamEventPool = 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);
        streamEventPool = new StreamEventPool(tableMetaStreamEvent, 10);
        streamEventConverter = new ZeroStreamEventConverter();
    }
    // Construct CallBack
    if (outStream instanceof InsertIntoStream) {
        if (window != null) {
            return new InsertIntoWindowCallback(window, outputStreamDefinition, queryName);
        } else if (table != null) {
            DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
            return new InsertIntoTableCallback(table, outputStreamDefinition, convertToStreamEvent, streamEventPool, streamEventConverter, queryName);
        } else {
            return new InsertIntoStreamCallback(outputStreamDefinition, queryName);
        }
    } 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, siddhiAppContext, null, tableMap, queryName);
                    StateEventPool stateEventPool = new StateEventPool(matchingMetaInfoHolder.getMetaStateEvent(), 10);
                    return new DeleteTableCallback(table, compiledCondition, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventPool, streamEventPool, streamEventConverter, queryName);
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create delete for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext.getName(), siddhiAppContext.getSiddhiAppString());
                }
            } else if (outStream instanceof UpdateStream) {
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, siddhiAppContext, null, tableMap, queryName);
                    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, siddhiAppContext, null, tableMap, queryName);
                    StateEventPool stateEventPool = new StateEventPool(matchingMetaInfoHolder.getMetaStateEvent(), 10);
                    return new UpdateTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventPool, streamEventPool, streamEventConverter, queryName);
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext);
                }
            } else {
                DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateOrInsertStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, siddhiAppContext, null, tableMap, queryName);
                    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, siddhiAppContext, null, tableMap, queryName);
                    StateEventPool stateEventPool = new StateEventPool(matchingMetaInfoHolder.getMetaStateEvent(), 10);
                    return new UpdateOrInsertTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventPool, streamEventPool, streamEventConverter, queryName);
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update or insert into for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiAppContext);
                }
            }
        } 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());
    }
}

Example 4 with StreamEventConverter

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

the class ComplexEventChunkTestCase method eventChunkRemoveTest1.

@Test
public void eventChunkRemoveTest1() {
    StreamEvent streamEvent1 = new StreamEvent(0, 0, 3);
    streamEvent1.setOutputData(new Object[] { "IBM", 700L, 1L });
    StreamEvent streamEvent2 = new StreamEvent(0, 0, 3);
    streamEvent2.setOutputData(new Object[] { "WSO2", 700L, 2L });
    StreamEvent streamEvent3 = new StreamEvent(0, 0, 3);
    streamEvent3.setOutputData(new Object[] { "WSO2", 700L, 3L });
    streamEvent1.setNext(streamEvent2);
    streamEvent2.setNext(streamEvent3);
    StreamEventPool streamEventPool = new StreamEventPool(0, 0, 3, 5);
    ConversionStreamEventChunk streamEventChunk = new ConversionStreamEventChunk(streamEventConverter, streamEventPool);
    streamEventChunk.convertAndAssign(streamEvent1);
    while (streamEventChunk.hasNext()) {
        count++;
        streamEventChunk.next();
        if (count == 1) {
            streamEventChunk.remove();
        }
    }
    AssertJUnit.assertEquals(streamEvent2, streamEventChunk.getFirst());
}

Example 5 with StreamEventConverter

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

the class ComplexEventChunkTestCase method eventChunkRemoveTest4.

@Test
public void eventChunkRemoveTest4() {
    StreamEvent streamEvent1 = new StreamEvent(0, 0, 3);
    streamEvent1.setOutputData(new Object[] { "IBM", 700L, 100L });
    StreamEvent streamEvent2 = new StreamEvent(0, 0, 3);
    streamEvent2.setOutputData(new Object[] { "WSO2", 700L, 100L });
    StreamEvent streamEvent3 = new StreamEvent(0, 0, 3);
    streamEvent3.setOutputData(new Object[] { "WSO2", 700L, 100L });
    StreamEvent streamEvent4 = new StreamEvent(0, 0, 3);
    streamEvent4.setOutputData(new Object[] { "WSO2", 700L, 100L });
    streamEvent1.setNext(streamEvent2);
    streamEvent2.setNext(streamEvent3);
    streamEvent3.setNext(streamEvent4);
    StreamEventPool streamEventPool = new StreamEventPool(0, 0, 3, 5);
    ConversionStreamEventChunk streamEventChunk = new ConversionStreamEventChunk(streamEventConverter, streamEventPool);
    streamEventChunk.convertAndAssign(streamEvent1);
    while (streamEventChunk.hasNext()) {
        count++;
        streamEventChunk.next();
        if (count == 2 || count == 4) {
            streamEventChunk.remove();
        }
    }
    StreamEvent streamEvent = streamEventChunk.getFirst();
    AssertJUnit.assertEquals(streamEvent1, streamEvent);
    AssertJUnit.assertEquals(streamEvent3, streamEvent.getNext());
    AssertJUnit.assertNull(streamEvent.getNext().getNext());
}