Re: Get access to unmatching events in Apache Flink Cep
In answer Biao said "currently there is no such API to access the middle
NFA state". May be that API exist in plan? Or I can create issue or pull
request that add API?
пт, 17 мая 2024 г. в 12:04, Anton Sidorov :
> Ok, thanks for the reply.
>
> пт, 17 мая 2024 г. в 09:22, Biao Geng :
>
>> Hi Anton,
>>
>> I am afraid that currently there is no such API to access the middle NFA
>> state in your case. For patterns that contain 'within()' condition, the
>> timeout events could be retrieved via TimedOutPartialMatchHandler
>> interface, but other unmatching events would be pruned immediately once
>> they are considered as unnecessary to keep.
>>
>> Best,
>> Biao Geng
>>
>>
>> Anton Sidorov 于2024年5月16日周四 16:12写道：
>>
>>> Hello!
>>>
>>> I have a Flink Job with CEP pattern.
>>>
>>> Pattern example:
>>>
>>> // Strict Contiguity
>>> // a b+ c d e
>>> Pattern.begin("a", AfterMatchSkipStrategy.skipPastLastEvent()).where(...)
>>> .next("b").where(...).oneOrMore()
>>> .next("c").where(...)
>>> .next("d").where(...)
>>> .next("e").where(...);
>>>
>>> I have events with wrong order stream on input:
>>>
>>> a b d c e
>>>
>>> On output I haven`t any matching. But I want have access to events, that
>>> not matching.
>>>
>>> Can I have access to middle NFA state in CEP pattern, or get some other
>>> way to view unmatching events?
>>>
>>> Example project with CEP pattern on github
>>> , and my question
>>> on SO
>>>
>>>
>>> Thanks in advance
>>>
>>
>
> --
> С уважением, Антон.
>
--
С уважением, Антон.
Re: Get access to unmatching events in Apache Flink Cep
Ok, thanks for the reply.
пт, 17 мая 2024 г. в 09:22, Biao Geng :
> Hi Anton,
>
> I am afraid that currently there is no such API to access the middle NFA
> state in your case. For patterns that contain 'within()' condition, the
> timeout events could be retrieved via TimedOutPartialMatchHandler
> interface, but other unmatching events would be pruned immediately once
> they are considered as unnecessary to keep.
>
> Best,
> Biao Geng
>
>
> Anton Sidorov 于2024年5月16日周四 16:12写道：
>
>> Hello!
>>
>> I have a Flink Job with CEP pattern.
>>
>> Pattern example:
>>
>> // Strict Contiguity
>> // a b+ c d e
>> Pattern.begin("a", AfterMatchSkipStrategy.skipPastLastEvent()).where(...)
>> .next("b").where(...).oneOrMore()
>> .next("c").where(...)
>> .next("d").where(...)
>> .next("e").where(...);
>>
>> I have events with wrong order stream on input:
>>
>> a b d c e
>>
>> On output I haven`t any matching. But I want have access to events, that
>> not matching.
>>
>> Can I have access to middle NFA state in CEP pattern, or get some other
>> way to view unmatching events?
>>
>> Example project with CEP pattern on github
>> , and my question
>> on SO
>>
>>
>> Thanks in advance
>>
>
--
С уважением, Антон.
Re: Get access to unmatching events in Apache Flink Cep
Hi Anton,
I am afraid that currently there is no such API to access the middle NFA
state in your case. For patterns that contain 'within()' condition, the
timeout events could be retrieved via TimedOutPartialMatchHandler
interface, but other unmatching events would be pruned immediately once
they are considered as unnecessary to keep.
Best,
Biao Geng
Anton Sidorov 于2024年5月16日周四 16:12写道：
> Hello!
>
> I have a Flink Job with CEP pattern.
>
> Pattern example:
>
> // Strict Contiguity
> // a b+ c d e
> Pattern.begin("a", AfterMatchSkipStrategy.skipPastLastEvent()).where(...)
> .next("b").where(...).oneOrMore()
> .next("c").where(...)
> .next("d").where(...)
> .next("e").where(...);
>
> I have events with wrong order stream on input:
>
> a b d c e
>
> On output I haven`t any matching. But I want have access to events, that
> not matching.
>
> Can I have access to middle NFA state in CEP pattern, or get some other
> way to view unmatching events?
>
> Example project with CEP pattern on github
> , and my question
> on SO
>
>
> Thanks in advance
>
