You can accumulate the minimum as well:
accumulate( Reading ( $r:reading) over windiw:time(30s) from entry-point
HeartrateStream;
$avg: average($r),
$min: min($r);
$min > 90 )
This tells you that all readings are over 90.
-W
On 28 February 2014 15:25, Lin Lin <lin.lin(a)comcast.net> wrote:
On Feb 27, 2014, at 4:06 PM, "lin.lin [via Drools]" <
ml-node+s46999n4028396h13(a)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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