[rules-users] Getting Exception while running rules continuously on the Event Streams from Mule Component.

[HariKishan]

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 at lists.jboss.org
[mailto:rules-users-bounces at 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 at pass-consulting.com>:

> @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 ...........

> ________________________________

> View this message in context: Re: [rules-users] Getting Exception while

> running rules continuously on the Event Streams from Mule Component.

> Sent from the Drools: User forum mailing list archive at Nabble.com.

> 

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