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https://issues.apache.org/jira/browse/FLINK-6609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015287#comment-16015287
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ASF GitHub Bot commented on FLINK-6609:
---------------------------------------
Github user dawidwys closed the pull request at:
https://github.com/apache/flink/pull/3927
> Wrong version assignment when multiple TAKEs transitions
> --------------------------------------------------------
>
> Key: FLINK-6609
> URL: https://issues.apache.org/jira/browse/FLINK-6609
> Project: Flink
> Issue Type: Bug
> Components: CEP
> Affects Versions: 1.3.0
> Reporter: Dawid Wysakowicz
> Assignee: Dawid Wysakowicz
> Priority: Blocker
> Fix For: 1.3.0
>
>
> This test fails due to wrong version assignment for TAKEs from the same state.
> {code}
> @Test
> public void testMultipleTakesVersionCollision() {
> List<StreamRecord<Event>> inputEvents = new ArrayList<>();
> Event startEvent = new Event(40, "c", 1.0);
> Event middleEvent1 = new Event(41, "a", 2.0);
> Event middleEvent2 = new Event(41, "a", 3.0);
> Event middleEvent3 = new Event(41, "a", 4.0);
> Event middleEvent4 = new Event(41, "a", 5.0);
> Event middleEvent5 = new Event(41, "a", 6.0);
> Event end = new Event(44, "b", 5.0);
> inputEvents.add(new StreamRecord<>(startEvent, 1));
> inputEvents.add(new StreamRecord<>(middleEvent1, 3));
> inputEvents.add(new StreamRecord<>(middleEvent2, 4));
> inputEvents.add(new StreamRecord<>(middleEvent3, 5));
> inputEvents.add(new StreamRecord<>(middleEvent4, 6));
> inputEvents.add(new StreamRecord<>(middleEvent5, 7));
> inputEvents.add(new StreamRecord<>(end, 10));
> Pattern<Event, ?> pattern =
> Pattern.<Event>begin("start").where(new SimpleCondition<Event>() {
> private static final long serialVersionUID =
> 5726188262756267490L;
> @Override
> public boolean filter(Event value) throws Exception {
> return value.getName().equals("c");
> }
> }).followedBy("middle1").where(new SimpleCondition<Event>() {
> private static final long serialVersionUID =
> 5726188262756267490L;
> @Override
> public boolean filter(Event value) throws Exception {
> return value.getName().equals("a");
> }
>
> }).oneOrMore().allowCombinations().followedBy("middle2").where(new
> SimpleCondition<Event>() {
> private static final long serialVersionUID =
> 5726188262756267490L;
> @Override
> public boolean filter(Event value) throws Exception {
> return value.getName().equals("a");
> }
> }).oneOrMore().allowCombinations().followedBy("end").where(new
> SimpleCondition<Event>() {
> private static final long serialVersionUID =
> 5726188262756267490L;
> @Override
> public boolean filter(Event value) throws Exception {
> return value.getName().equals("b");
> }
> });
> NFA<Event> nfa = NFACompiler.compile(pattern,
> Event.createTypeSerializer(), false);
> final List<List<Event>> resultingPatterns =
> feedNFA(inputEvents, nfa);
> compareMaps(resultingPatterns, Lists.newArrayList(
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent3, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent4, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent3, middleEvent4, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent4, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent3, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent4, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, middleEvent5, end),
> Lists.newArrayList(startEvent, middleEvent1,
> middleEvent2, end)
> ));
> }
> {code}
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