[rules-users] sliding window question

[Lin Lin]

> On Feb 27, 2014, at 4:06 PM, "lin.lin [via Drools]" <ml-node+s46999n4028396h13 at n3.nabble.com> wrote:
> 
> Hi 
> 
>    Thanks again for the pointers!! 
> 
>    I modified the code but the sliding window rule does not seem to be working as how I want it to be(copied shown in the following).  I injected 6 events, one event every 10 seconds, the first one is less than 90, the rest are more than 90.  I am expecting getting 3 alerts at 4th event, 5th event and 6 event. But instead I only get one alert. 
> 
>   when 
>     not Reading( reading <= 90 ) over window:time( 30s ) from entry-point ReadingStream 
>   then 
>      System.out.print ("alert: Reading high for 30 seconds \n"); 
> 
>   
>   So I used the other way as you suggested. It works and gives me 3 alerts. However if I added the accumulate pattern (copied below) , no alert is generated at all.  If I removed the first 3 patterns, just leave the last pattern, it does print the average of last 30 seconds event every time when a new event is injected. What else did I do wrong? 
> 
>       when 
>           $r1: Reading( reading >90 ) from entry-point HeartrateStream 
>           $r2: Reading( reading > 90, this after[30s,30s] $r1 ) from entry-point HeartrateStream 
>           not (Reading( reading <= 90, this after $r1, this before $r2 ) from entry-point HeartrateStream) 
>          $averg: Number() from accumulate( Reading ( $r:reading) over windiw:time(30s) from entry-point HeartrateStream, average($r) ) 
>       then 
>          System.out.print ("alert: Reading high for 30 seconds, average reading"+$averg+"\n"); 
> 
> 
> Thanks a lot!!! 
> Lin 
>     
> 
> 
> 
> 
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