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

Example 71 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink-mirror by flink-ci.

the class AfterMatchSkipITCase method testSkipPastLast.

@Test
public void testSkipPastLast() throws Exception {
    List<StreamRecord<Event>> streamEvents = new ArrayList<>();
    Event a1 = new Event(1, "a", 0.0);
    Event a2 = new Event(2, "a", 0.0);
    Event a3 = new Event(3, "a", 0.0);
    Event a4 = new Event(4, "a", 0.0);
    Event a5 = new Event(5, "a", 0.0);
    Event a6 = new Event(6, "a", 0.0);
    streamEvents.add(new StreamRecord<Event>(a1));
    streamEvents.add(new StreamRecord<Event>(a2));
    streamEvents.add(new StreamRecord<Event>(a3));
    streamEvents.add(new StreamRecord<Event>(a4));
    streamEvents.add(new StreamRecord<Event>(a5));
    streamEvents.add(new StreamRecord<Event>(a6));
    Pattern<Event, ?> pattern = Pattern.<Event>begin("start", AfterMatchSkipStrategy.skipPastLastEvent()).where(new SimpleCondition<Event>() {

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().equals("a");
        }
    }).times(3);
    NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
    List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
    comparePatterns(resultingPatterns, Lists.newArrayList(Lists.newArrayList(a1, a2, a3), Lists.newArrayList(a4, a5, a6)));
}

Example 72 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink-mirror by flink-ci.

the class AfterMatchSkipITCase method testSkipToFirstWithOneOrMoreAtBeginning.

/**
 * Example from docs.
 */
@Test
public void testSkipToFirstWithOneOrMoreAtBeginning() throws Exception {
    List<StreamRecord<Event>> streamEvents = new ArrayList<>();
    Event a1 = new Event(1, "a1", 0.0);
    Event a2 = new Event(2, "a2", 0.0);
    Event a3 = new Event(3, "a3", 0.0);
    Event b1 = new Event(4, "b1", 0.0);
    streamEvents.add(new StreamRecord<>(a1));
    streamEvents.add(new StreamRecord<>(a2));
    streamEvents.add(new StreamRecord<>(a3));
    streamEvents.add(new StreamRecord<>(b1));
    Pattern<Event, ?> pattern = Pattern.<Event>begin("a", AfterMatchSkipStrategy.skipToFirst("a")).where(new SimpleCondition<Event>() {

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().contains("a");
        }
    }).oneOrMore().consecutive().greedy().next("b").where(new SimpleCondition<Event>() {

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().contains("b");
        }
    });
    NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
    List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
    comparePatterns(resultingPatterns, Lists.newArrayList(Lists.newArrayList(a1, a2, a3, b1), Lists.newArrayList(a2, a3, b1), Lists.newArrayList(a3, b1)));
}

Example 73 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink-mirror by flink-ci.

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 74 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink-mirror by flink-ci.

the class GreedyITCase method testGreedyZeroOrMoreInBetween.

@Test
public void testGreedyZeroOrMoreInBetween() throws Exception {
    List<StreamRecord<Event>> inputEvents = new ArrayList<>();
    Event c = new Event(40, "c", 1.0);
    Event a1 = new Event(41, "a", 2.0);
    Event a2 = new Event(42, "a", 2.0);
    Event a3 = new Event(43, "a", 2.0);
    Event d = new Event(44, "d", 3.0);
    inputEvents.add(new StreamRecord<>(c, 1));
    inputEvents.add(new StreamRecord<>(new Event(1, "dummy", 1111), 2));
    inputEvents.add(new StreamRecord<>(a1, 3));
    inputEvents.add(new StreamRecord<>(new Event(1, "dummy", 1111), 4));
    inputEvents.add(new StreamRecord<>(a2, 5));
    inputEvents.add(new StreamRecord<>(new Event(1, "dummy", 1111), 6));
    inputEvents.add(new StreamRecord<>(a3, 7));
    inputEvents.add(new StreamRecord<>(d, 8));
    // c a* d
    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().optional().greedy().followedBy("end").where(new SimpleCondition<Event>() {

        private static final long serialVersionUID = 5726188262756267490L;

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().equals("d");
        }
    });
    NFA<Event> nfa = compile(pattern, false);
    final List<List<Event>> resultingPatterns = feedNFA(inputEvents, nfa);
    comparePatterns(resultingPatterns, Lists.<List<Event>>newArrayList(Lists.newArrayList(c, a1, a2, a3, d)));
}

Example 75 with SimpleCondition

use of org.apache.flink.cep.pattern.conditions.SimpleCondition in project flink-mirror by flink-ci.

the class GreedyITCase method testGreedyZeroOrMoreWithDummyEventsBeforeQuantifier.

@Test
public void testGreedyZeroOrMoreWithDummyEventsBeforeQuantifier() throws Exception {
    List<StreamRecord<Event>> inputEvents = new ArrayList<>();
    Event c = new Event(40, "c", 1.0);
    Event d = new Event(44, "d", 3.0);
    inputEvents.add(new StreamRecord<>(c, 1));
    inputEvents.add(new StreamRecord<>(new Event(43, "dummy", 2.0), 2));
    inputEvents.add(new StreamRecord<>(d, 5));
    // c a* d
    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().optional().greedy().followedBy("end").where(new SimpleCondition<Event>() {

        private static final long serialVersionUID = 5726188262756267490L;

        @Override
        public boolean filter(Event value) throws Exception {
            return value.getName().equals("d");
        }
    });
    NFA<Event> nfa = compile(pattern, false);
    final List<List<Event>> resultingPatterns = feedNFA(inputEvents, nfa);
    comparePatterns(resultingPatterns, Lists.<List<Event>>newArrayList(Lists.newArrayList(c, d)));
}