Re: [rules-users] can drools support complex rules (resetting of Accumulate?)

Hi, That's the first thought I had too! But that way, I'll be getting an "alarm" for every event after $times reached 10. Ideally, I'd want the accumulate method to restart "accumulation" once the RHS is triggered - so effectively the RHS would then be triggered for every "distinct" 10 events accumulated. Any out of the box solution for this? Also, am wondering - if some of us can pitch in effort and come up with a more detailed document on the Rule Language specifically? Going through most of the mails, I feel that's the only learning curve - we can make that even less challenging - like an "Advanced DRLs for Dummies" :) ? But before that... the resetting of my accumulator count, any ideas? Cheers, Rishi ---------------------------------------------------------------------- Message: 1 Date: Thu, 21 May 2009 18:16:01 +0200 From: Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; Subject: Re: [rules-users] can drools support complex rules (resetting of Accumulate?) To: Rules Users List <rules-users(a)lists.jboss.org&gt; Message-ID: <17de7ee80905210916gfddba51h35bf639ccf5af18a(a)mail.gmail.com&gt; Content-Type: text/plain; charset="iso-8859-1" Well, it's definitely not forbidden to do a little computational work on the RHS, too. Bind the result to a variable: Number( $times : intValue > 10 )... and, on the RHS, do for( int i = 1; i <= $times % 10; i++ ) shout( "alarm" ); or whatever. -W On Thu, May 21, 2009 at 4:21 PM, <hrishikesh.varma(a)wipro.com&gt; wrote: > Hi, > > > Temporal Reasoning with Accumulate - (like 3- rule "Customer login from > more than 5 locations in the last one month") > > What if I want to reset my count for accumulate within the time > specified sliding window.So that I can have the RHS triggered for every > 10times the event occurs in the same window. > For Example: > > when > $customer : Customer( $id : id ) > Number( intValue > 10 ) from accumulate( > CustomerLogin( loginStatus=="Failed", customerId == > $id,$cusId:customerId) > over window:time( 30s ), > count( $ cusId) ) > then > // do something as the customer had abnormal number of failed > violations in last 30 secs. > end > > > Right now am doing something similar, but using a manual approach -of > explicitly counting. > > Any Light on this? > > Regards > Rishi > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 19 May 2009 11:17:41 -0400 > From: Edson Tirelli <tirelli(a)post.com&gt; > Subject: Re: [rules-users] can drools support complex rules > To: Rules Users List <rules-users(a)lists.jboss.org&gt; > Message-ID: > <e6dd5ba30905190817q33d15b9er5efee64bc74cdb0e(a)mail.gmail.com&gt; > Content-Type: text/plain; charset="windows-1252" > > Your question is funny. First you ask if Drools is capable of > managing > complex rules and then you mention examples of extremely simple rules? > :) > > Drools is FOL complete and so can represent any well formed First > Order > Logic expression. Anyway, I will use this message to advertise some of > the > temporal reasoning features that we have on Drools 5 for the benefit of > anyone interested. > > There are several ways of authoring such rules, depending on how > you > model your problem domain. One possible way of doing them is: > > #1: > rule "If a customer login within 5 minutes from two different locations, > mark the user invalid." > when > $l1 : CustomerLogin( ) > $l2 : CustomerLogin( userId == l1.$id, location != $l1.id, > timestamp > after[0s, 5m] $l1.timestamp ) > then > // mark user as invalid > end > > In the previous example I assumed both login objects would be in working > memory, but you can easily query for the previous login in an external > datasource, pulling the data from the previous login on-demand for the > reasoning cycle. > > #2: > rule "If the customer location is not on a list of valid locations, mark > the > user invalid" > when > $l : CustomerLogin( location not memberOf $validLocations ) > then > // mark the user invalid > end > > In the above rule, I assume the valid locations list is a global list, > but > you can as easily model locations as being facts on your working memory > or a > service end point that you can call to validate the location. > > #3: > rule "Customer login from more than 5 locations in the last one month" > when > $customer : Customer( $id : id ) > $locations : Set( size > 5 ) from accumulate( > CustomerLogin( customerId == $id, $loc : location ) > over window:time( 30d ), > collectSet( $loc ) ) > then > // do something as the customer logged in from more than 5 locations > in > the last 30 days > end > > In the previous rule I decided to use sliding windows, just to show how > that > feature can be used to simplify rules, but again, there are several ways > of > doing it. > > I strongly recommend you read Drools manual. > > http://www.jboss.org/drools/documentation.html > > Cheers, > Edson > > > > 2009/5/19 Bhushan Bhangale <bhushan_bhangale(a)kaleconsultants.com&gt; > > > Hi, > > > > > > > > I recently came across Drools. I gone through the documentation and > the > > examples provide are quite simple. I want to know if it can be really > > applied to complex real world problems. > > > > > > > > Take for example, > > > > > > > > If a customer login within 5 minutes from two different locations, > mark the > > user invalid. > > > > How can I write the above rule in drools? I have the data when the > user > > last logged in and the data of current login. You can say two objects. > > > > > > > > May be my understanding is wrong but looks like based on rule I have > to > > pass all the required data. How can then at real time new rules can be > > added? > > > > > > > > For example, > > > > > > > > If the customer location is not on a list of valid locations, mark the > user > > invalid. > > > > > > > > For the above rule I need to pass a list of valid locations as well. > > > > > > > > Now how about "Customer login from more than 5 locations in the last > one > > month"? > > > > > > > > Thanks > > > > *Mr. Bhangale Bhushan* > > *Associate Manager* > > *Kale Consultants Ltd.* > > bhushan_bhangale(a)kaleconsultants.com > > tel: +91 (0)206 608 > 3777<http://www.plaxo.com/click_to_call?lang=en&src=jj_signature&a... > 1+%280%29206+608+3777&Email=bhushan_bhangale@kaleconsultants.com<http:// www.plaxo.com/click_to_call?lang=en&src=jj_signature&To=%2B9%0A1+... 206+608+3777&amp;Email=bhushan_bhangale(a)kaleconsultants.com&gt; > > > > http://www.kaleconsultants.com > > > > > > > > > > > > > > > > > > > > Disclaimer: This email (including any attachments) is intended for the > sole > > use of the recipient/s and may contain material that is CONFIDENTIAL. > Any > > unauthorized disclosure / copying / distribution or forwarding of this > message > > or part is STRICTLY PROHIBITED. 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If > verification is > > required please request a hard-copy version. > > > > To know more about Kale Consultants, visit www.kaleconsultants.com > > > > ---------- > > > > > > > > > > > > _______________________________________________ > > rules-users mailing list > > rules-users(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://lists.jboss.org/pipermail/rules-users/attachments/20090519/4d4928 > 6d/attachment-0001.html<http://lists.jboss.org/pipermail/rules-users/att achments/20090519/4d4928%0A6d/attachment-0001.html<http://lists.jboss.... > > > ------------------------------ > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > > End of rules-users Digest, Vol 30, Issue 56 > ******************************************* > > Please do not print this email unless it is absolutely necessary. > > The information contained in this electronic message and any attachments to > this message are intended for the exclusive use of the addressee(s) and may > contain proprietary, confidential or privileged information. If you are not > the intended recipient, you should not disseminate, distribute or copy this > e-mail. Please notify the sender immediately and destroy all copies of this > message and any attachments. > > WARNING: Computer viruses can be transmitted via email. The recipient > should check this email and any attachments for the presence of viruses. The > company accepts no liability for any damage caused by any virus transmitted > by this email. > > www.wipro.com > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20090521/cd3adb ca/attachment-0001.html<http://lists.jboss.org/pipermail/rules-users/a... ------------------------------ Message: 2 Date: Thu, 21 May 2009 10:42:34 -0700 (PDT) From: Steinar Haugen <steinar.haugen(a)gmail.com&gt; Subject: [rules-users] RuleBase.removeRule leads to NoClassDefFoundError To: rules-users(a)lists.jboss.org Message-ID: <23657476.post(a)talk.nabble.com&gt; Content-Type: text/plain; charset=us-ascii Hi, We're having a problem with runtime rule administration; i.e. using RuleBase.addRule and RuleBase.removeRule. We're using Drools 4.0.7 on Sun JDK 1.4.2_11 and inside Weblogic 8.1 sp 6. Typically we remove a few rules followed by adding a few rules. In some cases, we receive a NoClassDefFoundError. Stacktrace is provided in attached file. http://www.nabble.com/file/p23657476/stacktrace.txt stacktrace.txt The class referenced (i.e. the one not found) is the removed rule. Has anyone else seen this behaviour? This seems like such a basic error that we're wondering if we're doing something wrong here. We have been unable to find anything about this To make matters worse, this actually leads to a deadlock. This is because lock / unlock in version 4.0.7 is not encapsuled in a try / finally block in AbstractRuleBase.removeRule(), so whenever an error occurs, the lock is not released. I found a Jira issue regarding this, where this issue is addressed and apparently fixed in an earlier version: https://jira.jboss.org:8443/jira/browse/JBRULES-603 This fix has been rolled back, however, so this issue is present in version 4.0.7. We found a workaround for the deadlock by performing lock / unlock ourselves, since drools will not lock if it has been performed already. In addition, we encapsulate rulebase access with a read/write lock to ensure that whenever the rulebase is updated, no other operation towards it is performed. Regards, Steinar Haugen -- View this message in context: http://www.nabble.com/RuleBase.removeRule-leads-to-NoClassDefFoundError- tp23657476p23657476.html<http://www.nabble.com/RuleBase.removeRule-lea... Sent from the drools - user mailing list archive at Nabble.com. ------------------------------ Message: 3 Date: Thu, 21 May 2009 23:57:51 +0200 From: Femke De Backere <femmyke(a)gmail.com&gt; Subject: [rules-users] [users-rules] Loading time ruleflow To: Rules Users List <rules-users(a)lists.jboss.org&gt; Message-ID: <D4A555A5-AB32-404C-923B-B70C3EFB9892(a)gmail.com&gt; Content-Type: text/plain; charset="us-ascii" Hi! I'm testing the loading time of the line: kbuilder.add(ResourceFactory.newClassPathResource("nodesflow.rf", DroolsTest.class), ResourceType.DRF ); for a rule flow file with 1 split node, 3 split nodes, 7 split nodes, ... But the results I already have are confusing: 1 split node 26071960,8 1 3 split nodes 1018762000 40, 85676594 times the time of 1 split node flow 7 split nodes 4974479,4 1,907968479 times the time of 1 split node flow Can anybody explain why the 3 split node rule flow file takes a lot longer than the 7 split rule flow file? Thx, Femke -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20090521/553526 18/attachment.html<http://lists.jboss.org/pipermail/rules-users/attach... ------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users End of rules-users Digest, Vol 30, Issue 63 ******************************************* Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users