@Test
public void testCreatingFilterPatternQuery() {
Query query = QueryFactory.createQuery();
query.from(
QueryFactory.sequenceStream(
Sequence.next(
QueryFactory.inputStream("e1", "Stream1"),
QueryFactory.inputStream("e2", "Stream1")),
Expression.value(2000)));
query.insertInto("OutStream");
query.select(
QueryFactory.outputSelector()
.select("symbol", Expression.variable("e1", "symbol"))
.select("avgPrice", "avg", Expression.variable("e2", 0, "price"))
.groupBy("e1", "symbol")
.having(
Condition.compare(
Expression.variable("avgPrice"),
Condition.Operator.GREATER_THAN,
Expression.value(50))));
}
@Test
public void testPatternWithinQuery1() throws InterruptedException {
log.info("testPatternWithin1 - OUT 1");
SiddhiManager siddhiManager = new SiddhiManager();
siddhiManager.defineStream(
QueryFactory.createStreamDefinition()
.name("Stream1")
.attribute("symbol", Attribute.Type.STRING)
.attribute("price", Attribute.Type.FLOAT)
.attribute("volume", Attribute.Type.INT));
siddhiManager.defineStream(
QueryFactory.createStreamDefinition()
.name("Stream2")
.attribute("symbol", Attribute.Type.STRING)
.attribute("price", Attribute.Type.FLOAT)
.attribute("volume", Attribute.Type.INT));
Query query = QueryFactory.createQuery();
query.from(
QueryFactory.patternStream(
Pattern.followedBy(
Pattern.every(
QueryFactory.inputStream("e1", "Stream1")
.filter(
Condition.compare(
Expression.variable("price"),
Condition.Operator.GREATER_THAN,
Expression.value(20)))),
QueryFactory.inputStream("e2", "Stream2")
.filter(
Condition.compare(
Expression.variable("price"),
Condition.Operator.GREATER_THAN,
Expression.variable("e1", "price")))),
Expression.value(1000)));
query.insertInto("OutStream");
query.project(
QueryFactory.outputProjector()
.project("symbol1", Expression.variable("e1", "symbol"))
.project("symbol2", Expression.variable("e2", "symbol")));
String queryReference = siddhiManager.addQuery(query);
siddhiManager.addCallback(
queryReference,
new QueryCallback() {
@Override
public void receive(long timeStamp, Event[] inEvents, Event[] removeEvents) {
EventPrinter.print(timeStamp, inEvents, removeEvents);
if (eventCount == 0) {
Assert.assertArrayEquals(new Object[] {"GOOG", "IBM"}, inEvents[0].getData());
} else {
Assert.fail();
}
eventCount++;
eventArrived = true;
}
});
InputHandler stream1 = siddhiManager.getInputHandler("Stream1");
InputHandler stream2 = siddhiManager.getInputHandler("Stream2");
stream1.send(new Object[] {"WSO2", 55.6f, 100});
Thread.sleep(1500);
stream1.send(new Object[] {"GOOG", 54f, 100});
Thread.sleep(500);
stream2.send(new Object[] {"IBM", 55.7f, 100});
Thread.sleep(500);
siddhiManager.shutdown();
Assert.assertEquals("Number of success events", 1, eventCount);
Assert.assertEquals("Event arrived", true, eventArrived);
}