[jira] [Created] (FLINK-7280) Wrong clearing SharedBuffer of Equal elements with same Timestamp

[Dawid Wysakowicz (JIRA)]

Dawid Wysakowicz created FLINK-7280:
---------------------------------------

             Summary: Wrong clearing SharedBuffer of Equal elements with same 
Timestamp
                 Key: FLINK-7280
                 URL: https://issues.apache.org/jira/browse/FLINK-7280
             Project: Flink
          Issue Type: Bug
          Components: CEP
    Affects Versions: 1.3.1, 1.4.0
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz


Following tests fails right now:

{code}
@Test
public void testClearingBuffer() throws Exception {
        List<StreamRecord<Event>> inputEvents = new ArrayList<>();

        Event a1 = new Event(40, "a", 1.0);
        Event b1 = new Event(41, "b", 2.0);
        Event c1 = new Event(41, "c", 2.0);
        Event d = new Event(41, "d", 2.0);

        inputEvents.add(new StreamRecord<>(a1, 1));
        inputEvents.add(new StreamRecord<>(b1, 2));
        inputEvents.add(new StreamRecord<>(c1, 2));
        inputEvents.add(new StreamRecord<>(d, 2));

        Pattern<Event, ?> pattern = Pattern.<Event>begin("a").where(new 
SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("a");
                }
        }).followedBy("b").where(new SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("b");
                }
        }).followedBy("c").where(new SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("c");
                }
        }).followedBy("d").where(new SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("d");
                }
        });

        NFA<Event> nfa = NFACompiler.compile(pattern, 
Event.createTypeSerializer(), false);

        List<List<Event>> resultingPatterns = feedNFA(inputEvents, nfa);
        compareMaps(resultingPatterns, Lists.<List<Event>>newArrayList(
                Lists.newArrayList(a1, b1, c1, d)
        ));
        assertTrue(nfa.isEmpty());
}
{code}

{code}
@Test
public void testClearingBufferWithUntilAtTheEnd() throws Exception {
        List<StreamRecord<Event>> inputEvents = new ArrayList<>();

        Event a1 = new Event(40, "a", 1.0);
        Event d1 = new Event(41, "d", 2.0);
        Event d2 = new Event(41, "d", 2.0);
        Event d3 = new Event(41, "d", 2.0);
        Event d4 = new Event(41, "d", 2.0);

        inputEvents.add(new StreamRecord<>(a1, 1));
        inputEvents.add(new StreamRecord<>(d1, 2));
        inputEvents.add(new StreamRecord<>(d2, 2));
        inputEvents.add(new StreamRecord<>(d3, 2));
        inputEvents.add(new StreamRecord<>(d4, 4));

        Pattern<Event, ?> pattern = Pattern.<Event>begin("a").where(new 
SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("a");
                }
        }).followedBy("d").where(new SimpleCondition<Event>() {
                @Override
                public boolean filter(Event value) throws Exception {
                        return value.getName().equals("d");
                }
        }).oneOrMore().until(new IterativeCondition<Event>() {
                @Override
                public boolean filter(Event value, Context<Event> ctx) throws 
Exception {
                        return 
Iterators.size(ctx.getEventsForPattern("d").iterator()) == 3;
                }
        });

        NFA<Event> nfa = NFACompiler.compile(pattern, 
Event.createTypeSerializer(), false);

        List<List<Event>> resultingPatterns = feedNFA(inputEvents, nfa);
        compareMaps(resultingPatterns, Lists.<List<Event>>newArrayList(
                Lists.newArrayList(a1, d1, d2, d3),
                Lists.newArrayList(a1, d1, d2),
                Lists.newArrayList(a1, d1)
        ));
        assertTrue(nfa.isEmpty());
}
{code}



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