Examples with SimpleCondition org.apache.flink.cep.pattern.conditions.SimpleCondition used on opensource projects

Example 96 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink by splunk.

the class AfterMatchSkipITCase method testSkipToFirst.

@Test
public void testSkipToFirst() throws Exception {
    List<StreamRecord<Event>> streamEvents = new ArrayList<>();
    Event ab1 = new Event(1, "ab", 0.0);
    Event ab2 = new Event(2, "ab", 0.0);
    Event ab3 = new Event(3, "ab", 0.0);
    Event ab4 = new Event(4, "ab", 0.0);
    Event ab5 = new Event(5, "ab", 0.0);
    Event ab6 = new Event(6, "ab", 0.0);
    streamEvents.add(new StreamRecord<Event>(ab1));
    streamEvents.add(new StreamRecord<Event>(ab2));
    streamEvents.add(new StreamRecord<Event>(ab3));
    streamEvents.add(new StreamRecord<Event>(ab4));
    streamEvents.add(new StreamRecord<Event>(ab5));
    streamEvents.add(new StreamRecord<Event>(ab6));
    Pattern<Event, ?> pattern = Pattern.<Event>begin("start", AfterMatchSkipStrategy.skipToFirst("end")).where(new SimpleCondition<Event>() {

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().contains("a");
        }
    }).times(2).next("end").where(new SimpleCondition<Event>() {

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().contains("b");
        }
    }).times(2);
    NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
    List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
    comparePatterns(resultingPatterns, Lists.newArrayList(Lists.newArrayList(ab1, ab2, ab3, ab4), Lists.newArrayList(ab3, ab4, ab5, ab6)));
}

Example 97 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink by splunk.

the class AfterMatchSkipITCase method testSharedBufferIsProperlyCleared.

@Test
public void testSharedBufferIsProperlyCleared() throws Exception {
    List<StreamRecord<Event>> inputEvents = new ArrayList<>();
    for (int i = 0; i < 4; i++) {
        inputEvents.add(new StreamRecord<>(new Event(1, "a", 1.0), i));
    }
    SkipPastLastStrategy matchSkipStrategy = AfterMatchSkipStrategy.skipPastLastEvent();
    Pattern<Event, ?> pattern = Pattern.<Event>begin("start", matchSkipStrategy).where(new SimpleCondition<Event>() {

        private static final long serialVersionUID = 5726188262756267490L;

        @Override
        public boolean filter(Event value) throws Exception {
            return true;
        }
    }).times(2);
    SharedBuffer<Event> sharedBuffer = TestSharedBuffer.createTestBuffer(Event.createTypeSerializer());
    NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).withSharedBuffer(sharedBuffer).build();
    nfaTestHarness.feedRecords(inputEvents);
    assertThat(sharedBuffer.isEmpty(), Matchers.is(true));
}

Example 98 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink by splunk.

the class UntilConditionITCase method testUntilConditionFollowedByOneOrMoreCombinations.

@Test
public void testUntilConditionFollowedByOneOrMoreCombinations() throws Exception {
    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(42, "a", 3.0);
    Event middleEvent3 = new Event(43, "a", 4.0);
    Event breaking = new Event(44, "a", 5.0);
    Event ignored = new Event(45, "a", 6.0);
    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<>(breaking, 6));
    inputEvents.add(new StreamRecord<>(ignored, 7));
    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("middle").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().until(UNTIL_CONDITION).followedBy("end").where(UNTIL_CONDITION);
    NFA<Event> nfa = compile(pattern, false);
    NFAState nfaState = nfa.createInitialNFAState();
    NFATestHarness nfaTestHarness = NFATestHarness.forNFA(nfa).withNFAState(nfaState).build();
    final List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(inputEvents);
    comparePatterns(resultingPatterns, Lists.<List<Event>>newArrayList(Lists.newArrayList(startEvent, middleEvent1, middleEvent2, middleEvent3, breaking), Lists.newArrayList(startEvent, middleEvent1, middleEvent2, breaking), Lists.newArrayList(startEvent, middleEvent1, middleEvent3, breaking), Lists.newArrayList(startEvent, middleEvent1, breaking)));
    assertEquals(1, nfaState.getPartialMatches().size());
    assertEquals("start", nfaState.getPartialMatches().peek().getCurrentStateName());
}

Example 99 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink by splunk.

the class UntilConditionITCase method testIterativeUntilConditionOneOrMore.

@Test
public void testIterativeUntilConditionOneOrMore() throws Exception {
    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(42, "a", 3.0);
    Event middleEvent3 = new Event(40, "d", 1.0);
    Event breaking = new Event(44, "a", 5.0);
    Event ignored = new Event(45, "a", 6.0);
    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<>(breaking, 6));
    inputEvents.add(new StreamRecord<>(ignored, 7));
    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("middle").oneOrMore().until(new IterativeCondition<Event>() {

        @Override
        public boolean filter(Event value, Context<Event> ctx) throws Exception {
            double sum = 0;
            for (Event middle : ctx.getEventsForPattern("middle")) {
                sum += middle.getPrice();
            }
            return sum == 6.0;
        }
    });
    NFA<Event> nfa = compile(pattern, false);
    NFAState nfaState = nfa.createInitialNFAState();
    NFATestHarness nfaTestHarness = NFATestHarness.forNFA(nfa).withNFAState(nfaState).build();
    final List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(inputEvents);
    comparePatterns(resultingPatterns, Lists.<List<Event>>newArrayList(Lists.newArrayList(startEvent, middleEvent1, middleEvent2, middleEvent3), Lists.newArrayList(startEvent, middleEvent1, middleEvent2), Lists.newArrayList(startEvent, middleEvent1)));
    assertEquals(1, nfaState.getPartialMatches().size());
    assertEquals("start", nfaState.getPartialMatches().peek().getCurrentStateName());
}

Example 100 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink by splunk.

the class NFAITCase method testBranchingPatternSkipTillNext.

// /////////////////////////////////////   Skip till next     /////////////////////////////
@Test
public void testBranchingPatternSkipTillNext() throws Exception {
    List<StreamRecord<Event>> inputEvents = new ArrayList<>();
    Event startEvent = new Event(40, "start", 1.0);
    SubEvent middleEvent1 = new SubEvent(41, "foo1", 1.0, 10.0);
    SubEvent middleEvent2 = new SubEvent(42, "foo2", 1.0, 10.0);
    SubEvent middleEvent3 = new SubEvent(43, "foo3", 1.0, 10.0);
    SubEvent nextOne1 = new SubEvent(44, "next-one", 1.0, 2.0);
    SubEvent nextOne2 = new SubEvent(45, "next-one", 1.0, 2.0);
    Event endEvent = new Event(46, "end", 1.0);
    inputEvents.add(new StreamRecord<>(startEvent, 1));
    inputEvents.add(new StreamRecord<Event>(middleEvent1, 3));
    inputEvents.add(new StreamRecord<Event>(middleEvent2, 4));
    inputEvents.add(new StreamRecord<Event>(middleEvent3, 5));
    inputEvents.add(new StreamRecord<Event>(nextOne1, 6));
    inputEvents.add(new StreamRecord<Event>(nextOne2, 7));
    inputEvents.add(new StreamRecord<>(endEvent, 8));
    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("start");
        }
    }).followedBy("middle-first").subtype(SubEvent.class).where(new SimpleCondition<SubEvent>() {

        private static final long serialVersionUID = 6215754202506583964L;

        @Override
        public boolean filter(SubEvent value) throws Exception {
            return value.getVolume() > 5.0;
        }
    }).followedBy("middle-second").subtype(SubEvent.class).where(new SimpleCondition<SubEvent>() {

        private static final long serialVersionUID = 6215754202506583964L;

        @Override
        public boolean filter(SubEvent value) throws Exception {
            return value.getName().equals("next-one");
        }
    }).followedByAny("end").where(new SimpleCondition<Event>() {

        private static final long serialVersionUID = 7056763917392056548L;

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().equals("end");
        }
    });
    NFA<Event> nfa = compile(pattern, false);
    final List<List<Event>> patterns = feedNFA(inputEvents, nfa);
    comparePatterns(patterns, Lists.<List<Event>>newArrayList(Lists.newArrayList(startEvent, middleEvent1, nextOne1, endEvent)));
}