[rules-users] Test if String endsWith()

[Wolfgang Laun]

On 13/11/2012, Omar Baqueiro <baqueiro at ooyala.com> wrote:
> It seems I have to use 5.0.I am using Drools as part of a third party
> framework called MuleESB (
> http://www.mulesoft.org/documentation/display/MULE3USER/Drools+Module+Reference
> ), so I don't think I have to use the provided version.
>
> Is the str[endsWith] operator available on this 5.0 version?

No, it happened around 5.2 +/- 0.1 ;-)

>
> Otherwise, it seems I'll have to do create my own like:
> http://blog.athico.com/2010/06/creating-pluggable-oprators.html

Yes, but note that it should be possible to call the Java method endsWith() in
an eval clause.

-W
>
>
> Thanks a lot.
> O.
>
> On Tue, Nov 13, 2012 at 2:02 AM, Wolfgang Laun <wolfgang.laun at gmail.com>
> wrote:
>> Which version are you using?
>>
>> 5.4.0 works for me, using either
>>    Message(  message.endsWith( "World" ) )
>> or
>>    Message(  message str[endsWith] "World"  )
>>
>> -W
>>
>> On 13/11/2012, Omar Baqueiro <baqueiro at ooyala.com> wrote:
>>> Follow up from my question. I have read more from the Drools expert
>>> guide (
>>> http://docs.jboss.org/drools/release/5.2.0.Final/drools-expert-docs/html_single
>>> ), and in Section 5.8.3.3.10.9 it talks about the str operator:
>>>
>>> Message( routingValue str[endsWith] "R2" )
>>>
>>>
>>> However, when I try to use the str operator I get an error:
>>>
>>> no viable alternative at input 'str' in rule "Check the items of the
>>> list and remove the ones that satisfy the condition" in pattern
>>> OfferWrapper[19,26]: [ERR 102] Line 19:26 mismatched input '
>>> "endsWith" ' expecting ']'
>>>
>>> I tried both using endsWith with quotes and without quotes and I get a
>>> similar error in both cases.
>>>
>>> Mu rule is:
>>>> import java.lang.String
>>> rule "Check the items of the list and remove the ones that satisfy the
>>> condition"
>>>      lock-on-active
>>>  when
>>>      $wrapper : Wrapper(
>>>                  id == "itemId",
>>>                  email str[endsWith] "@email.com",
>>>                  $items : list)
>>>      $item    : Map() from $items
>>>  then
>>>      $items.remove($item)
>>>  end
>>>
>>>
>>> Any clue on why am I getting an error?
>>> Thanks.
>>> O.
>>>
>>> On Mon, Nov 12, 2012 at 4:44 PM, Omar Baqueiro <baqueiro at ooyala.com>
>>> wrote:
>>>>
>>>> Hello,
>>>>
>>>> I am trying to evaluate certain data with Drools based on the end of a
>>>> string. So far, I have got the following mvel based DRL ( My Wrapper
>>>> class
>>>> has the fields (with all their accessors) id, email and list):
>>>>
>>>> ---
>>>> rule "Check the items of the list and remove the ones that satisfy the
>>>> condition"
>>>>     lock-on-active
>>>> when
>>>>     $wrapper : Wrapper(
>>>>                 id == "itemId",
>>>>                 email.endsWith("@email.com") == true,
>>>>                 $items : list)
>>>>     $item    : Map() from $items
>>>> then
>>>>     $items.remove($item)
>>>> end
>>>> ----
>>>>
>>>>
>>>> However, when trying to apply this rule, I get the  error: no viable
>>>> alternative at input '"@gmail.com"' in rule ...".
>>>>
>>>> What is the correct way to test whether a string ends with certain text
>>>> (i.e, using the String.endsWith function using MVEL)
>>>>
>>>> Thanks for any help!
>>>>
>>>>
>>>> --
>>>> --
>>>> Omar Baqueiro Espinosa
>>>> Software Engineer |
>>>> baqueiro at ooyala.com | +52 (33) 3817-0861
>>>> www.ooyala.com | blog | @ooyala
>>>>
>>>
>>>
>>>
>>> --
>>> --
>>> Omar Baqueiro Espinosa
>>> Software Engineer |
>>> baqueiro at ooyala.com | +52 (33) 3817-0861
>>> www.ooyala.com | blog | @ooyala
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
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>
>
>
> --
> --
> Omar Baqueiro Espinosa
> Software Engineer |
> baqueiro at ooyala.com | +52 (33) 3817-0861
> www.ooyala.com | blog | @ooyala
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