Re: [rules-users] Getting Exception while running rules continuously on the Event Streams from Mule Component.
Hi Wolfgang,
The below code which you wrote is very appropriate but where should we
mention on which collection we are traversing the conditions on .
Like in collect
$alarms : ArrayList(size>0) from collect ( Alarm( ...... ) from
av.getAlarms() )
Thanks & Regards,
Hari Kishan T
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: Wednesday, September 28, 2011 3:39 PM
To: Rules Users List
Subject: Re: [rules-users] Getting Exception while running rules
continuously on the Event Streams from Mule Component.
Here is an example:
$av: List() from accumulate ( $a: Alarm( ...select "interesting" alarms...
),
init( List<Alarm> alarms = new ArrayList<Alarm>(); )
action( alarms.add($a); )
reverse( alarms.remove($a); )
result(alarms) )
To select "interesting" alarms, separate the constraints for fields
"activation" and
"geofenceCustomer" with a comma (which acts like a logical "and").
-W
2011/9/28 Hari Kishan <HariKishan.Tammana(a)pass-consulting.com>:
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@wolfgang Yesterday you told me to use accumulate instead of collect.
But
i
could not find the right way to use accumulate here. Please see below
my
rules when condition [ collect function(Bold & Italic) ] and
please tell
me
how can i use accumulate there. If possible change the conditional
element
to accumulate with appropriate changes. when // "Sensor Data
Idem Stream"
is
where Mule sends the Sensordata facts // for each Alarm / Sensordata
combination that is identified via the vehicle id $sd :
SensorDataIdem
($vid
: vehicleId) from entry-point "Sensor Data Idem Stream" //
Set a
references
for later on the initial facts $av : AlarmVehicle(vehicleId == $vid)
//The
Condition to be added to get the active Alarms from the List of
Alarms
eval($av!=null && $av.getAlarms()!=null &&
$av.getAlarms().size()>0)
$alarms
: ArrayList(size>0) from collect ( Alarm( ( (activation ==
AlarmConstants.ALWAYS_ACTIVE) || (activation ==
AlarmConstants.ACTIVE_ONLY_ONTOUR && $sd.onTour == true) ||
(activation ==
AlarmConstants.ACTIVE_ONLY_NOT_ONTOUR && $sd.onTour == false)
||
(activation
== AlarmConstants.ACTIVE_ONLY_ONMOVING && $sd.onMove == true)
||
(activation
== AlarmConstants.ACTIVE_ON_TIME_WINDOW ) ) && ( (
(geofenceCustomer == 0)
|| (geofenceCustomer == 1 && $sd.inCustomerGeoFence == true)
||
(geofenceCustomer == 2 && $sd.inCustomerGeoFence == false) )
&& (
(geofenceDepot == 0) || (geofenceDepot == 1 &&
$sd.inDepotGeoFence ==
true)
|| (geofenceDepot == 2 && $sd.inDepotGeoFence == false) ) ) )
from
$av.getAlarms() ) eval($alarms!=null) then ...........
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