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

Example 6 with StreamEventConverter

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

the class EventTestCase method testPassThroughStreamEventConverter.

@Test
public void testPassThroughStreamEventConverter() {
    Attribute symbol = new Attribute("symbol", Attribute.Type.STRING);
    Attribute price = new Attribute("price", Attribute.Type.DOUBLE);
    Attribute volume = new Attribute("volume", Attribute.Type.INT);
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addOutputDataAllowingDuplicate(symbol);
    metaStreamEvent.addOutputDataAllowingDuplicate(price);
    metaStreamEvent.addOutputDataAllowingDuplicate(volume);
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.DOUBLE).attribute("volume", Attribute.Type.INT);
    Event event = new Event(System.currentTimeMillis(), new Object[] { "WSO2", 200.0, 50 });
    metaStreamEvent.addInputDefinition(streamDefinition);
    StreamEventConverter converter = StreamEventConverterFactory.constructEventConverter(metaStreamEvent);
    StreamEventFactory eventPool = new StreamEventFactory(metaStreamEvent);
    StreamEvent newEvent = eventPool.newInstance();
    converter.convertEvent(event, newEvent);
    AssertJUnit.assertTrue(converter instanceof ZeroStreamEventConverter);
    AssertJUnit.assertEquals(3, newEvent.getOutputData().length);
    AssertJUnit.assertEquals("WSO2", newEvent.getOutputData()[0]);
    AssertJUnit.assertEquals(200.0, newEvent.getOutputData()[1]);
    AssertJUnit.assertEquals(50, newEvent.getOutputData()[2]);
}

Example 7 with StreamEventConverter

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

the class EventTestCase method testSimpleStreamEventConverter.

@Test
public void testSimpleStreamEventConverter() {
    Attribute price = new Attribute("price", Attribute.Type.DOUBLE);
    Attribute symbol = new Attribute("symbol", Attribute.Type.STRING);
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addOutputData(symbol);
    metaStreamEvent.addOutputData(price);
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.DOUBLE).attribute("volume", Attribute.Type.INT);
    Event event = new Event(System.currentTimeMillis(), new Object[] { "WSO2", 200, 50 });
    metaStreamEvent.addInputDefinition(streamDefinition);
    StreamEventConverter converter = StreamEventConverterFactory.constructEventConverter(metaStreamEvent);
    StreamEventFactory eventPool = new StreamEventFactory(metaStreamEvent);
    StreamEvent newEvent = eventPool.newInstance();
    converter.convertEvent(event, newEvent);
    AssertJUnit.assertTrue(converter instanceof SimpleStreamEventConverter);
    AssertJUnit.assertNull(newEvent.getBeforeWindowData());
    AssertJUnit.assertNull(newEvent.getOnAfterWindowData());
    AssertJUnit.assertEquals(2, newEvent.getOutputData().length);
    AssertJUnit.assertEquals(200, newEvent.getOutputData()[1]);
    AssertJUnit.assertEquals("WSO2", newEvent.getOutputData()[0]);
}

Example 8 with StreamEventConverter

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

the class EventTestCase method testStreamEventConverter.

@Test
public void testStreamEventConverter() {
    Attribute price = new Attribute("price", Attribute.Type.DOUBLE);
    Attribute volume = new Attribute("volume", Attribute.Type.INT);
    Attribute symbol = new Attribute("symbol", Attribute.Type.STRING);
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addData(volume);
    metaStreamEvent.initializeOnAfterWindowData();
    metaStreamEvent.addData(price);
    metaStreamEvent.addOutputData(symbol);
    // complex attribute
    metaStreamEvent.addOutputData(null);
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.DOUBLE).attribute("volume", Attribute.Type.INT);
    Event event = new Event(System.currentTimeMillis(), new Object[] { "WSO2", 200, 50 });
    metaStreamEvent.addInputDefinition(streamDefinition);
    StreamEventConverter converter = StreamEventConverterFactory.constructEventConverter(metaStreamEvent);
    StreamEventFactory eventPool = new StreamEventFactory(metaStreamEvent);
    StreamEvent newEvent = eventPool.newInstance();
    converter.convertEvent(event, newEvent);
    AssertJUnit.assertTrue(converter instanceof SelectiveStreamEventConverter);
    // volume
    AssertJUnit.assertEquals(1, newEvent.getBeforeWindowData().length);
    // price
    AssertJUnit.assertEquals(1, newEvent.getOnAfterWindowData().length);
    // symbol and avgPrice
    AssertJUnit.assertEquals(2, newEvent.getOutputData().length);
    AssertJUnit.assertEquals(50, newEvent.getBeforeWindowData()[0]);
    AssertJUnit.assertEquals(200, newEvent.getOnAfterWindowData()[0]);
    AssertJUnit.assertEquals("WSO2", newEvent.getOutputData()[0]);
}

Example 9 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[] 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);
    }
}