3:59 p.m.
I have a simple rule set working: I assert a Fact and Drools matches multiple
rules per Fact as desired - now I need to do something meaningful when one
OR MORE rules matches - i.e. I need to be able to send a JMS message for
every Rule match to the interested Party, or invoke some type of process
when Drools finds the right MULTIPLE conditions for me... Examples I've
seen only show how to update/modify the Fact, or how to print out a Println
- how do I get beyond that?
Here's my simple rule with functions - any suggestions will be welcome:
rule "Customer Match"
salience 100
when
custGI : GateIn ( matched==false, customerId == "NISSAN",
destinationLocation matches "^SF.*" )
then
System.out.println("\nFound Customer Match");
notifyPartner(custGI.getCustomerId());
end
rule "Shipper Match"
salience 90
when
shipperGI : GateIn ( matched==false, primaryShipperId == "YELLOW" )
then
System.out.println("\nFound Shipper Match");
notifyPartner(shipperGI.getPrimaryShipperId());
end
// Match found - notify customer
function void notifyPartner(String _partner ) {
System.out.println("Notifying Partner " + _partner );
/*
* How do I invoke a notification Service from here?!
*/
}
--
View this message in context:
http://www.nabble.com/What-can-be-done-in-RHS-block...-tf3189882.html#a88...
Sent from the drools - user mailing list archive at Nabble.com.
1:50 p.m.
New subject: How to inovke a Service...
I've done a little research since my first post and have been experimenting
with the AgendaEventListener interface... I can register a component in
WorkingMemory that will 'listen' and be notified afterEventFired event -
this could be a good place from which to invoke my serivce, however, the
problem I'm having is that the event delivered doesn't seem to pass the
original Fact that caused the Event to fire, only the rule that got
activated is sent... How could I get the Fact that caused this event to
fire from that event object?
James
--
View this message in context:
http://www.nabble.com/How-to-inovke-a-Service...-tf3189882.html#a8872876
Sent from the drools - user mailing list archive at Nabble.com.
3:31 p.m.
New subject: How to inovke a Service...
James,
The consequence and function blocks in a DRL file are transformed
into a plain java method. It means you can do whatever you want and java
allows. So, if you are for instance inside an application server, you
cat get your JNDI context from there and do your stuff. Although, it is
usually better to have helper classes doing procedural code and keep the
consequence code clean to make rules maintance easier.
So, for exaple, you can have a helper class that has the actual code
to call the service you want and set it as a global for your rulebase.
Then in the consequence you call this class method with the given
paramenters.
Example:
package my.package;
global my.service.package.ServiceInvoker invoker;
rule "Cheese in stock"
when
$p : Person( $likes : likes )
$c : Cheese( type == $likes, quantity > 0 )
then
invoker.sendMessageToPerson( $p, "Your prefered cheese
("+$c.getType()+") is back in stock;" );
end
Inside your ServiceInvoker class you create the code to actually send
the message (procedural code).
This is only one way of doing it, but it is usually what is done.
Hope it helps.
[]s
Edson
jdepaul wrote:
I've done a little research since my first post and have been
experimenting
with the AgendaEventListener interface... I can register a component in
WorkingMemory that will 'listen' and be notified afterEventFired event -
this could be a good place from which to invoke my serivce, however, the
problem I'm having is that the event delivered doesn't seem to pass the
original Fact that caused the Event to fire, only the rule that got
activated is sent... How could I get the Fact that caused this event to
fire from that event object?
James
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
4:29 p.m.
New subject: How to inovke a Service...
Thanks Edson -
Two questions:
1) Is using Globals (as you mention below) same as using
WorkingMemory.setApplicationData(myService) - or is this yet another way
to do it. Is there a difference in terms of efficiency?
2) Is there a way to get to the Fact that fired the event from the Event
object passed in the AgendaEventListener.afterActivationFired(Event event)
From an efficiency and performance standpoint, which way would you
recommend pursuing: EventListener invoking a service or service invoked
from global Helper class in current WorkingMemory? Any guidance there
would be appreciated.
Thanks,
James
Edson Tirelli
<tirelli(a)post.com
To
Sent by: Rules Users List
rules-users-bounc <rules-users(a)lists.jboss.org>
es(a)lists.jboss.or cc
g
Subject
Re: [rules-users] How to inovke a
02/08/2007 02:31 Service...
PM
Please respond to
Rules Users List
<rules-users@list
s.jboss.org>
James,
The consequence and function blocks in a DRL file are transformed
into a plain java method. It means you can do whatever you want and java
allows. So, if you are for instance inside an application server, you
cat get your JNDI context from there and do your stuff. Although, it is
usually better to have helper classes doing procedural code and keep the
consequence code clean to make rules maintance easier.
So, for exaple, you can have a helper class that has the actual code
to call the service you want and set it as a global for your rulebase.
Then in the consequence you call this class method with the given
paramenters.
Example:
package my.package;
global my.service.package.ServiceInvoker invoker;
rule "Cheese in stock"
when
$p : Person( $likes : likes )
$c : Cheese( type == $likes, quantity > 0 )
then
invoker.sendMessageToPerson( $p, "Your prefered cheese
("+$c.getType()+") is back in stock;" );
end
Inside your ServiceInvoker class you create the code to actually send
the message (procedural code).
This is only one way of doing it, but it is usually what is done.
Hope it helps.
[]s
Edson
jdepaul wrote:
I've done a little research since my first post and have been
experimenting
with the AgendaEventListener interface... I can register a component
in
WorkingMemory that will 'listen' and be notified afterEventFired event -
this could be a good place from which to invoke my serivce, however, the
problem I'm having is that the event delivered doesn't seem to pass the
original Fact that caused the Event to fire, only the rule that got
activated is sent... How could I get the Fact that caused this event to
fire from that event object?
James
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
11:18 p.m.
New subject: How to inovke a Service...
hi James,
i believe event.getActivation().getTuple().getFactHandles() should do...
holla
________________________________
From: rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of James Depaul
Sent: Friday, February 09, 2007 3:59 AM
To: Rules Users List
Subject: Re: [rules-users] How to inovke a Service...
Thanks Edson -
Two questions:
1) Is using Globals (as you mention below) same as using
WorkingMemory.setApplicationData(myService) - or is this yet another way
to do it. Is there a difference in terms of efficiency?
2) Is there a way to get to the Fact that fired the event from the Event
object passed in the AgendaEventListener.afterActivationFired(Event
event)
From an efficiency and performance standpoint, which way would you
recommend pursuing: EventListener invoking a service or service invoked
from global Helper class in current WorkingMemory? Any guidance there
would be appreciated.
Thanks,
James
Edson Tirelli <tirelli(a)post.com>
Edson Tirelli <tirelli(a)post.com>
Sent by:
rules-users-bounces(a)lists.jboss.org
02/08/2007 02:31 PM
Please respond to
Rules Users List <rules-users(a)lists.jboss.org>
To
Rules Users List <rules-users(a)lists.jboss.org>
cc
Subject
Re: [rules-users] How to inovke a Service...
James,
The consequence and function blocks in a DRL file are transformed
into a plain java method. It means you can do whatever you want and java
allows. So, if you are for instance inside an application server, you
cat get your JNDI context from there and do your stuff. Although, it is
usually better to have helper classes doing procedural code and keep the
consequence code clean to make rules maintance easier.
So, for exaple, you can have a helper class that has the actual code
to call the service you want and set it as a global for your rulebase.
Then in the consequence you call this class method with the given
paramenters.
Example:
package my.package;
global my.service.package.ServiceInvoker invoker;
rule "Cheese in stock"
when
$p : Person( $likes : likes )
$c : Cheese( type == $likes, quantity > 0 )
then
invoker.sendMessageToPerson( $p, "Your prefered cheese
("+$c.getType()+") is back in stock;" );
end
Inside your ServiceInvoker class you create the code to actually send
the message (procedural code).
This is only one way of doing it, but it is usually what is done.
Hope it helps.
[]s
Edson
jdepaul wrote:
I've done a little research since my first post and have been
experimenting
with the AgendaEventListener interface... I can register a component
in
WorkingMemory that will 'listen' and be notified
afterEventFired event
-
this could be a good place from which to invoke my serivce, however,
the
problem I'm having is that the event delivered doesn't seem to
pass the
original Fact that caused the Event to fire, only the rule that got
activated is sent... How could I get the Fact that caused this event
to
fire from that event object?
James
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
7:16 a.m.
New subject: How to inovke a Service...
James,
About globals, the concept is the same as the drools 2.x "Application
Data", but in 3.0 it is called global:
http://labs.jboss.com/file-access/default/members/jbossrules/freezone/doc...
http://labs.jboss.com/file-access/default/members/jbossrules/freezone/doc...
[]s
Edson
Holla Sachin-a23031 wrote:
hi James,
i believe *event.getActivation().getTuple().getFactHandles()* should do...
holla
------------------------------------------------------------------------
*From:* rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] *On Behalf Of *James Depaul
*Sent:* Friday, February 09, 2007 3:59 AM
*To:* Rules Users List
*Subject:* Re: [rules-users] How to inovke a Service...
Thanks Edson -
Two questions:
1) Is using Globals (as you mention below) same as using
WorkingMemory.setApplicationData(myService) - or is this yet another
way to do it. Is there a difference in terms of efficiency?
2) Is there a way to get to the Fact that fired the event from the
Event object passed in the
AgendaEventListener.afterActivationFired(Event event)
>From an efficiency and performance standpoint, which way would you
recommend pursuing: EventListener invoking a service or service
invoked from global Helper class in current WorkingMemory? Any
guidance there would be appreciated.
Thanks,
James
Inactive hide details for Edson Tirelli <tirelli(a)post.com>Edson
Tirelli <tirelli(a)post.com>
*Edson Tirelli <tirelli(a)post.com>*
Sent by: rules-users-bounces(a)lists.jboss.org
02/08/2007 02:31 PM
Please respond to
Rules Users List <rules-users(a)lists.jboss.org>
To
Rules Users List <rules-users(a)lists.jboss.org>
cc
Subject
Re: [rules-users] How to inovke a Service...
James,
The consequence and function blocks in a DRL file are transformed
into a plain java method. It means you can do whatever you want and java
allows. So, if you are for instance inside an application server, you
cat get your JNDI context from there and do your stuff. Although, it is
usually better to have helper classes doing procedural code and keep the
consequence code clean to make rules maintance easier.
So, for exaple, you can have a helper class that has the actual code
to call the service you want and set it as a global for your rulebase.
Then in the consequence you call this class method with the given
paramenters.
Example:
package my.package;
global my.service.package.ServiceInvoker invoker;
rule "Cheese in stock"
when
$p : Person( $likes : likes )
$c : Cheese( type == $likes, quantity > 0 )
then
invoker.sendMessageToPerson( $p, "Your prefered cheese
("+$c.getType()+") is back in stock;" );
end
Inside your ServiceInvoker class you create the code to actually send
the message (procedural code).
This is only one way of doing it, but it is usually what is done.
Hope it helps.
[]s
Edson
jdepaul wrote:
>I've done a little research since my first post and have been
experimenting
>with the AgendaEventListener interface... I can register a component in
>WorkingMemory that will 'listen' and be notified afterEventFired event -
>this could be a good place from which to invoke my serivce, however, the
>problem I'm having is that the event delivered doesn't seem to pass the
>original Fact that caused the Event to fire, only the rule that got
>activated is sent... How could I get the Fact that caused this event to
>fire from that event object?
>
>James
>
>
>
>
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
------------------------------------------------------------------------
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
11:52 a.m.
New subject: How to inovke a Service...
Thanks for a great example - I was able to invoke myService from the
<consequence> block in my rules, but NOT from a Function that I define...
is this a limitation, or is there some other syntax when invoking from a
function?
rule "Shipper Match"
salience 90
when
shipperGI : GateIn ( customerId == "NISSAN", primaryShipperId ==
"yellow"
)
then
myService.sendNotification(shipperGI, Constants.SHIPPER_MATCH); <-- This
Works
// notifyPartNer(shipperGI, COnstants.SHIPPER_MATCH); <-- This DOESN'T
WORK!
end
// Match found - notify customer
function void notifyPartner(GateIn _event, String _action ) {
System.out.println("Invoking Service for action = " + _action );
//myService.sendNotification(_event, _action); <-- Never gets to here...
crashes...
}
Edson Tirelli-3 wrote:
> So, for exaple, you can have a helper class that has the actual code
> to call the service you want and set it as a global for your rulebase.
> Then in the consequence you call this class method with the given
> paramenters.
...
--
View this message in context:
http://www.nabble.com/How-to-inovke-a-Service...-tf3189882.html#a8890381
Sent from the drools - user mailing list archive at Nabble.com.
12:06 p.m.
New subject: How to inovke a Service...
Hello!
I'm a newbie, but I believe you have to write eval on functions.
__________________________________
Francisco Brum - francisco.brum(a)link.pt
Link Consulting - http://www.link.pt/
Tel.: 213 100 031
Av. Duque D'Ávila, 23 4º Esq.
1000-138 Lisboa
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of jdepaul
Sent: sexta-feira, 9 de Fevereiro de 2007 17:53
To: rules-users(a)lists.jboss.org
Subject: Re: [rules-users] How to inovke a Service...
Thanks for a great example - I was able to invoke myService from the
<consequence> block in my rules, but NOT from a Function that I define...
is this a limitation, or is there some other syntax when invoking from a
function?
rule "Shipper Match"
salience 90
when
shipperGI : GateIn ( customerId == "NISSAN", primaryShipperId ==
"yellow"
)
then
myService.sendNotification(shipperGI, Constants.SHIPPER_MATCH); <-- This
Works
// notifyPartNer(shipperGI, COnstants.SHIPPER_MATCH); <-- This DOESN'T
WORK!
end
// Match found - notify customer
function void notifyPartner(GateIn _event, String _action ) {
System.out.println("Invoking Service for action = " + _action );
//myService.sendNotification(_event, _action); <-- Never gets to here...
crashes...
}
Edson Tirelli-3 wrote:
> So, for exaple, you can have a helper class that has the actual code
> to call the service you want and set it as a global for your rulebase.
> Then in the consequence you call this class method with the given
> paramenters.
...
--
View this message in context:
http://www.nabble.com/How-to-inovke-a-Service...-tf3189882.html#a8890381
Sent from the drools - user mailing list archive at Nabble.com.
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
1:37 p.m.
New subject: How to inovke a Service...
Seems a bug to me. It should be possible to call it from within the
function.
May I ask you please to open a JIRA attaching a sample code that
generates the problem?
Thank you,
Edson
jdepaul wrote:
Thanks for a great example - I was able to invoke myService from the
<consequence> block in my rules, but NOT from a Function that I define...
is this a limitation, or is there some other syntax when invoking from a
function?
rule "Shipper Match"
salience 90
when
shipperGI : GateIn ( customerId == "NISSAN", primaryShipperId ==
"yellow"
)
then
myService.sendNotification(shipperGI, Constants.SHIPPER_MATCH); <-- This
Works
// notifyPartNer(shipperGI, COnstants.SHIPPER_MATCH); <-- This DOESN'T
WORK!
end
// Match found - notify customer
function void notifyPartner(GateIn _event, String _action ) {
System.out.println("Invoking Service for action = " + _action );
//myService.sendNotification(_event, _action); <-- Never gets to here...
crashes...
}
Edson Tirelli-3 wrote:
>> So, for exaple, you can have a helper class that has the actual code
>>to call the service you want and set it as a global for your rulebase.
>>Then in the consequence you call this class method with the given
>>paramenters.
>>
>>
>...
>
>
>
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
6500
days inactive
6502
days old
8 comments
5 participants
participants (5)
-
Edson Tirelli -
Francisco Brum -
Holla Sachin-a23031 -
James Depaul -
jdepaul