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

Example 66 with StreamEvent

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

the class EventTestCase method testExpressionExecutors.

@Test
public void testExpressionExecutors() {
    // StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute
    // .Type.STRING).attribute("price", Attribute.Type.FLOAT).attribute("volume", Attribute.Type.INT);
    VariableExpressionExecutor priceVariableExpressionExecutor = new VariableExpressionExecutor(new Attribute("price", Attribute.Type.FLOAT), 0, 0);
    priceVariableExpressionExecutor.setPosition(new int[] { 0, SiddhiConstants.UNKNOWN_STATE, SiddhiConstants.OUTPUT_DATA_INDEX, 1 });
    ExpressionExecutor addExecutor = new AddExpressionExecutorFloat(new ConstantExpressionExecutor(10f, Attribute.Type.FLOAT), priceVariableExpressionExecutor);
    StreamEvent event = new StreamEvent(0, 0, 3);
    event.setOutputData(new Object[] { "WSO2", 10f, 5 });
    AssertJUnit.assertEquals("Result of adding should be 20.0", 20f, addExecutor.execute(event));
}

Example 67 with StreamEvent

use of org.wso2.siddhi.core.event.stream.StreamEvent 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.initializeAfterWindowData();
    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);
    StreamEventPool eventPool = new StreamEventPool(metaStreamEvent, 5);
    StreamEvent borrowedEvent = eventPool.borrowEvent();
    converter.convertEvent(event, borrowedEvent);
    AssertJUnit.assertTrue(converter instanceof SelectiveStreamEventConverter);
    // volume
    AssertJUnit.assertEquals(1, borrowedEvent.getBeforeWindowData().length);
    // price
    AssertJUnit.assertEquals(1, borrowedEvent.getOnAfterWindowData().length);
    // symbol and avgPrice
    AssertJUnit.assertEquals(2, borrowedEvent.getOutputData().length);
    AssertJUnit.assertEquals(50, borrowedEvent.getBeforeWindowData()[0]);
    AssertJUnit.assertEquals(200, borrowedEvent.getOnAfterWindowData()[0]);
    AssertJUnit.assertEquals("WSO2", borrowedEvent.getOutputData()[0]);
}

Example 68 with StreamEvent

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

the class EventTestCase method testEventCreation.

@Test
public void testEventCreation() {
    SiddhiEventFactory siddhiEventFactory = new SiddhiEventFactory(2);
    AssertJUnit.assertEquals(2, siddhiEventFactory.newInstance().getData().length);
    StreamEventFactory streamEventFactory = new StreamEventFactory(2, 3, 4);
    StreamEvent streamEvent = streamEventFactory.newInstance();
    AssertJUnit.assertEquals(2, streamEvent.getBeforeWindowData().length);
    AssertJUnit.assertEquals(3, streamEvent.getOnAfterWindowData().length);
    AssertJUnit.assertEquals(4, streamEvent.getOutputData().length);
}

Example 69 with StreamEvent

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

the class EventTestCase method testEventPool.

@Test
public void testEventPool() {
    StreamEventPool streamEventPool = new StreamEventPool(2, 3, 1, 4);
    StreamEvent[] streamEvents = new StreamEvent[5];
    for (int i = 0; i < 5; i++) {
        streamEvents[i] = streamEventPool.borrowEvent();
    }
    AssertJUnit.assertEquals(0, streamEventPool.getBufferedEventsSize());
    for (int i = 0; i < 5; i++) {
        streamEventPool.returnEvents(streamEvents[i]);
    }
    AssertJUnit.assertEquals(4, streamEventPool.getBufferedEventsSize());
    streamEventPool.borrowEvent();
    AssertJUnit.assertEquals(3, streamEventPool.getBufferedEventsSize());
}

Example 70 with StreamEvent

use of org.wso2.siddhi.core.event.stream.StreamEvent 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);
    StreamEventPool eventPool = new StreamEventPool(metaStreamEvent, 5);
    StreamEvent borrowedEvent = eventPool.borrowEvent();
    converter.convertEvent(event, borrowedEvent);
    AssertJUnit.assertTrue(converter instanceof ZeroStreamEventConverter);
    AssertJUnit.assertEquals(3, borrowedEvent.getOutputData().length);
    AssertJUnit.assertEquals("WSO2", borrowedEvent.getOutputData()[0]);
    AssertJUnit.assertEquals(200.0, borrowedEvent.getOutputData()[1]);
    AssertJUnit.assertEquals(50, borrowedEvent.getOutputData()[2]);
}