RV: [rules-users] Checking an xml field

[Scott Reed]

What is the problem you are seeing? Do the rules compile ok?

Otaduy del Paso, Zaloa [10/6/2008 12:08 PM] wrote:
>
> Does anybody know the answer to my question? I'm not able to solve 
> this issue and don't find any clarifying tutorial either....
>
>  
>
> Hi,
>
>  
>
> I'm new in drools and I'm having some problems accessing an xml field. 
> I'm using drools with jaxb to treat xml files that follow an specific 
> xsd. I have the following xml (this is just a piece of the xml):
>
>  
>
> <OASIS_TSO_1_0>
>
>       <EVENT>
>
> <EVENT_ID>EVENT_ID_03/10/2008 10:22:36</EVENT_ID>
>
> <NODE_ID>00</NODE_ID>
>
> <OTHER_EVENT_ID>Incidente UME</OTHER_EVENT_ID>
>
> <EVENT_TYPE>POL</EVENT_TYPE>
>
> <SOURCE>HUMDED</SOURCE>
>
> <SEVERITY>EXTREM</SEVERITY>
>
> <CERTAINTY>88</CERTAINTY>
>
> <DECL_DATIME>2008-10-03T10:20:47.0000000+02:00</DECL_DATIME>
>
> <GEO>
>
> <DESCRIPTION/>
>
> <POSITION>
>
> <LOC_ID>14021</LOC_ID>
>
> <COORD>
>
> <LAT>37.9811636567434</LAT>
>
> <LON>-4.85417587343286</LON>
>
> <HEIGHT>0</HEIGHT>
>
> </COORD>
>
> </POSITION>
>
> </GEO>
>
>      </EVENT>
>
> </OASIS_TSO_1_0>
>
>  
>
>  
>
> I already have a couple of rules working, but they are simple rules, 
> like this one:
>
>  
>
> rule "Rule1"
>
>     salience 10
>
> when
>
>                         OASISTSO10($e: EVENT)
>
> OASISTSO10($e.SEVERITY == "EXTREM") or OASISTSO10($e.SEVERITY == "SEVERE")
>
>             then
>
>                         action
>
>  
>
> The problem appears when I have to check the LOC_ID field and I don't 
> know how to access to it. I have tried several things but none of them 
> work
>
>  
>
> 1.
>
>             when
>
> OASISTSO10($e: EVENT)
>
>                         OASISTSO10($e.GEO.POSITION.LOCID == "40005")
>
>             then
>
> 2.
>
>             when
>
> OASISTSO10($e: EVENT)
>
> OASISTSO10($g: $e.GEO)
>
>                         OASISTSO10($p: $g.POSITION)
>
>                         OASISTSO10($p.LOCID  == "40005")
>
>             Then
>
>  
>
> I have also tried with ($e.GEO.POSITION.DESCRIPTION, just in case the 
> "_" character was the problem. But the same results... I have searched 
> also for examples with xmls but I haven't had luck.
>
> Any help would be appreciated. Thanks in advance,
>
>  
>
> Zaloa
>
>  
>
> ------------------------------------------------------------------------
>
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