Java Code Examples for org.apache.flink.cep.utils.NFATestHarness#feedRecords()
The following examples show how to use
org.apache.flink.cep.utils.NFATestHarness#feedRecords() .
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Example 1
| Source File: AfterMatchSkipITCase.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
|
@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 2
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 6 votes |
|
@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 3
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 6 votes |
|
@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 4
| Source File: AfterMatchSkipITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
|
@Test
public void testNoSkip() 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.noSkip())
.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);
compareMaps(resultingPatterns, Lists.newArrayList(
Lists.newArrayList(a1, a2, a3),
Lists.newArrayList(a2, a3, a4),
Lists.newArrayList(a3, a4, a5),
Lists.newArrayList(a4, a5, a6)
));
}
Example 5
| Source File: AfterMatchSkipITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
|
@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);
compareMaps(resultingPatterns, Lists.newArrayList(
Lists.newArrayList(a1, a2, a3),
Lists.newArrayList(a4, a5, a6)
));
}
Example 6
| Source File: AfterMatchSkipITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
|
@Test(expected = FlinkRuntimeException.class)
public void testSkipToFirstElementOfMatch() throws Exception {
List<StreamRecord<Event>> streamEvents = new ArrayList<>();
Event a1 = new Event(1, "a1", 0.0);
streamEvents.add(new StreamRecord<Event>(a1));
Pattern<Event, ?> pattern = Pattern.<Event>begin("a",
AfterMatchSkipStrategy.skipToFirst("a").throwExceptionOnMiss()
).where(
new SimpleCondition<Event>() {
@Override
public boolean filter(Event value) throws Exception {
return value.getName().contains("a");
}
}
);
NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
//skip to first element of a match should throw exception if they are enabled,
//this mode is used in MATCH RECOGNIZE which assumes that skipping to first element
//would result in infinite loop. In CEP by default(with exceptions disabled), we use no skip
//strategy in this case.
}
Example 7
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@Test
public void testNoSkip() 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.noSkip())
.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);
compareMaps(resultingPatterns, Lists.newArrayList(
Lists.newArrayList(a1, a2, a3),
Lists.newArrayList(a2, a3, a4),
Lists.newArrayList(a3, a4, a5),
Lists.newArrayList(a4, a5, a6)
));
}
Example 8
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@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);
compareMaps(resultingPatterns, Lists.newArrayList(
Lists.newArrayList(a1, a2, a3),
Lists.newArrayList(a4, a5, a6)
));
}
Example 9
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@Test(expected = FlinkRuntimeException.class)
public void testSkipToFirstElementOfMatch() throws Exception {
List<StreamRecord<Event>> streamEvents = new ArrayList<>();
Event a1 = new Event(1, "a1", 0.0);
streamEvents.add(new StreamRecord<Event>(a1));
Pattern<Event, ?> pattern = Pattern.<Event>begin("a",
AfterMatchSkipStrategy.skipToFirst("a").throwExceptionOnMiss()
).where(
new SimpleCondition<Event>() {
@Override
public boolean filter(Event value) throws Exception {
return value.getName().contains("a");
}
}
);
NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
//skip to first element of a match should throw exception if they are enabled,
//this mode is used in MATCH RECOGNIZE which assumes that skipping to first element
//would result in infinite loop. In CEP by default(with exceptions disabled), we use no skip
//strategy in this case.
}
Example 10
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@Test
public void testNoSkip() 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.noSkip())
.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(a2, a3, a4),
Lists.newArrayList(a3, a4, a5),
Lists.newArrayList(a4, a5, a6)
));
}
Example 11
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@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 12
| Source File: AfterMatchSkipITCase.java From flink with Apache License 2.0 | 5 votes |
|
@Test(expected = FlinkRuntimeException.class)
public void testSkipToFirstElementOfMatch() throws Exception {
List<StreamRecord<Event>> streamEvents = new ArrayList<>();
Event a1 = new Event(1, "a1", 0.0);
streamEvents.add(new StreamRecord<Event>(a1));
Pattern<Event, ?> pattern = Pattern.<Event>begin("a",
AfterMatchSkipStrategy.skipToFirst("a").throwExceptionOnMiss()
).where(
new SimpleCondition<Event>() {
@Override
public boolean filter(Event value) throws Exception {
return value.getName().contains("a");
}
}
);
NFATestHarness nfaTestHarness = NFATestHarness.forPattern(pattern).build();
List<List<Event>> resultingPatterns = nfaTestHarness.feedRecords(streamEvents);
//skip to first element of a match should throw exception if they are enabled,
//this mode is used in MATCH RECOGNIZE which assumes that skipping to first element
//would result in infinite loop. In CEP by default(with exceptions disabled), we use no skip
//strategy in this case.
}
Example 13
| Source File: UntilConditionITCase.java From Flink-CEPplus with Apache License 2.0 | 4 votes |
|
@Test
public void testUntilConditionWithEmptyWhere() 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(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);
compareMaps(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 14
| Source File: UntilConditionITCase.java From flink with Apache License 2.0 | 4 votes |
|
@Test
public void testUntilConditionWithEmptyWhere() 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(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);
compareMaps(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 15
| Source File: UntilConditionITCase.java From flink with Apache License 2.0 | 4 votes |
|
@Test
public void testUntilConditionWithEmptyWhere() 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(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),
Lists.newArrayList(startEvent, middleEvent1, middleEvent2),
Lists.newArrayList(startEvent, middleEvent1)
));
assertEquals(1, nfaState.getPartialMatches().size());
assertEquals("start", nfaState.getPartialMatches().peek().getCurrentStateName());
}
