[rules-users] Problem with CEP/Fusion rules in Guvnor and RuleAgent: unable to determine operator for symbol [after]
Hello Drools users Given the following simple test rule: rule test rule 1 when $e : Event(); not( Event(id == $e.id this after[0s,10s] $e ) ) then System.out.println(Hello); end placed in Guvnor and the following simple test project: ruleagent.properties: url=http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST TestRuleAgent.java: RuleAgent agent = RuleAgent.newRuleAgent(/ruleagent.properties); RuleBase rb = agent.getRuleBase(); throws the following exception: Exception in thread main org.drools.RuntimeDroolsException: unable to determine operator for symbol [after] at org.drools.base.evaluators.Operator.determineOperator(Operator.java:71) at org.drools.base.evaluators.Operator.readResolve(Operator.java:106) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1061) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762) [cut objectinputstream lines] at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189) at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158) at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:50) at org.drools.agent.URLScanner.readPackage(URLScanner.java:148) at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:120) at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:96) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362) at org.drools.agent.RuleAgent.configure(RuleAgent.java:347) at org.drools.agent.RuleAgent.init(RuleAgent.java:247) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256) at ruleagent.RuleAgentTest.main(RuleAgentTest.java:16) any ideas to what I am doing wrong here? Thanks Michael ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Implementing Timers With Drools Persistence Enabled
I just found out that this is a (fixed) known issue: https://jira.jboss.org/browse/JBRULES-2552 Deadlock when using fireUntilHalt on SingleSessionCommandService On Tue, Jul 13, 2010 at 7:49 PM, Tan Hui Onn hui...@gmail.com wrote: Hi Nick, You are absolutely right that the timer is not triggered in CommandBasedStatefulKnowledgeSession (which is used for JPA persistence). I have spent some time to troubleshoot it. There is some finding regarding to this problem. Maybe other experts are willing to solve it. In org.drools.persistence.processinstance.JPASignalManager, when the signal is triggered in method signalEvent(long processInstanceId, String type, Object event), the thread is blocked in commandService.execute(command); I used debugger to trace it, and found that SingleSessionCommandService.execute(GenericCommandT) is synchronized. I think the cause of untriggered timer is due to blocked commandService.execute(command) in JPASignalManager. (I am using drools-5.1.0.M2) On Tue, Jul 13, 2010 at 6:09 AM, nanic23 nani...@hotmail.com wrote: Hi cafebabe, Thanks for your comment. I agree with you that work item ids are database primary keys but in this simple (very simple) case I just decided to harcoded as I know for a fact that the work item id is 1 because that is the only work item and each time I run the test the tables are dropped and recreated. So, there is never more than one row in the workItemInfo table and the only row always has 1 as its id. I could have stored the work item id or a work item object as a variable (like you mentioned) but in this case wouldn't make a difference for the timers. Are timers working for you when you use persistence? I do complete work items by workItem.getId() in all my code (other than this simple example :)). My problem is NOT completing the work item, my problem is triggering timers when persistence is enabled. The timers don't even trigger, thing that should happen before even trying to complete the work item. Thanks, Nick. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Implementing-Timers-With-Drools-Persistence-Enabled-tp923142p961658.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Debug as within Eclipse
chris richmond-2 wrote: I used the upate site to update my Eclipse Galileo IDE with the drools tools, created a new drools project, had it add the hello/goodbye test class and pointed my workspace to the 5.1M binaries. If you use the update site, I'd say your eclipse plugin is at version 5.0. Maybe a manual download and extract of the 5.1M2 plugin from the download site might fix things? Evert -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Debug-as-within-Eclipse-tp66651p969092.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Help Needed in Drools Flow
Hi, I have inserted some objects into the process session through ksession.insert(Object arg0) method call in the class file that starts the process.Now I want to access those objects in my workItem on entry action code. Can I do it? If yes please let me know how?? Thanks Santosh Mukherjee. On Wed, Jul 14, 2010 at 4:37 PM, Chris Raschl c.raschl-mailingli...@dyless.com wrote: Am 14.07.2010 12:05, schrieb santosh mukherjee: Hi, I want to add some of my own customized components to Drools Flow components pannel. How can this be done. Is there some API available to do so ?? Hi, i guess you want to add domain specific work items to use them in the process designer in eclispe. There is no API, to do that you just have to add a drools.rulebase.conf file and your own work item definition to your META-INF directory. There is an example in the drools flow manual: http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-flow/html_single/index.html#d4e1033 Remind: You'll have to re-open the process to make the work items appear. Hope this helps, chris ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Help Needed in Drools Flow
This is the code that I am using in the OnEntryActions part of my workItem. System.out.println(context.getProcessInstance().getWorkingMemory()); FactHandle fac=context.getProcessInstance().getWorkingMemory().insert(new Name(santosh)); System.out.println(fac); org.drools.runtime.rule.WorkingMemory wrk=context.getProcessInstance().getWorkingMemory(); System.out.println(wrk); System.out.println(wrk.getObject(fac)); But it gives this error: Process Compilation error : org.drools.lang.descr.processde...@1ecfe07 com/sample/Process_com_sample_0.java (20:933) : Type mismatch: cannot convert from org.drools.WorkingMemory to org.drools.runtime.rule.WorkingMemory Process Compilation error : org.drools.lang.descr.processde...@1ecfe07 com/sample/Process_com_sample_0.java (20:933) : Type mismatch: cannot convert from org.drools.WorkingMemory to org.drools.runtime.rule.WorkingMemory Process Compilation error : org.drools.lang.descr.processde...@1ecfe07 com/sample/Process_com_sample_0.java (20:933) : Type mismatch: cannot convert from org.drools.WorkingMemory to org.drools.runtime.rule.WorkingMemory java.lang.IllegalArgumentException: Could not parse knowledge. at com.sample.ProcessTest.readKnowledgeBase(ProcessTest.java:47) at com.sample.ProcessTest.main(ProcessTest.java:24) Can anyone help how to get around this error??? Thank You. Santosh Mukherjee On Thu, Jul 15, 2010 at 5:33 PM, santosh mukherjee sam.sensat...@gmail.comwrote: Hi, I have inserted some objects into the process session through ksession.insert(Object arg0) method call in the class file that starts the process.Now I want to access those objects in my workItem on entry action code. Can I do it? If yes please let me know how?? Thanks Santosh Mukherjee. On Wed, Jul 14, 2010 at 4:37 PM, Chris Raschl c.raschl-mailingli...@dyless.com wrote: Am 14.07.2010 12:05, schrieb santosh mukherjee: Hi, I want to add some of my own customized components to Drools Flow components pannel. How can this be done. Is there some API available to do so ?? Hi, i guess you want to add domain specific work items to use them in the process designer in eclispe. There is no API, to do that you just have to add a drools.rulebase.conf file and your own work item definition to your META-INF directory. There is an example in the drools flow manual: http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-flow/html_single/index.html#d4e1033 Remind: You'll have to re-open the process to make the work items appear. Hope this helps, chris ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Avoiding loops
Thanks for the feedback, guys. Leonardo. On Wed, Jul 14, 2010 at 8:41 AM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Another option would be the addition of a single Trigger fact, inserted along with your regular facts, added as an additional pattern to all rules, and retracted in each RHS. You might also consider using Event processing to terminate the Engine's run after the first AfterActivationFiredEvent. -W 2010/7/14 Mauricio Salatino sala...@gmail.com: you can also add an extra property to your facts to check and add condition to check that property. (like a processed flag) Greetings 2010/7/13 Leonardo Gomes leonardo.f.go...@gmail.com Hi Droolers, I'm trying to avoid loops and looking at different possibilities (no-loop, activation-group, lock-on-active, etc.). Scenario I want to avoid: For example, the initial facts trigger *rule 1*, which inserts new facts that will trigger *rule 2*, which will then insert facts that would re-trigger *rule 1*. Possibilities I tried: no-loop - just prevents the re-activation of the same rule lock-on-active - I can't know which rules should have lock-on-active set to true, since I don't know what will be the initial facts. What I'm trying to achieve: All rules in my rule set should execute only once. So, a rule inserts new facts only rules that haven't executed so far, should be activated. Is there a way to do that, let's say 'out-of-the-box', with DRL? Thank you, Leo. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Retrieve rule names fired from StatefulknowledgeSession
Hi I have retrieved the package from guvnor url and fired the rules using statefulsession.fireallrules() I can get the number of rules fired, all the rule names from the guvnor for the model but how can I get the names of the rules that is fired.Is there any way to get it from the session? As my requirement needs that many users may run the application (not the guvnor application )at the same time so each set of rules will vary depending on the user who has logged in. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Retrieve-rule-names-fired-from-StatefulknowledgeSession-tp969508p969508.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Retrieve rule names fired from StatefulknowledgeSession
You probably want to read up on agenda listeners - this will let you get the information you want. Thomas -Original Message- From: rules-users-boun...@lists.jboss.org [mailto:rules-users- boun...@lists.jboss.org] On Behalf Of G3 Sent: 15 July 2010 14:16 To: rules-users@lists.jboss.org Subject: [rules-users] Retrieve rule names fired from StatefulknowledgeSession Hi I have retrieved the package from guvnor url and fired the rules using statefulsession.fireallrules() I can get the number of rules fired, all the rule names from the guvnor for the model but how can I get the names of the rules that is fired.Is there any way to get it from the session? As my requirement needs that many users may run the application (not the guvnor application )at the same time so each set of rules will vary depending on the user who has logged in. -- View this message in context: http://drools-java-rules- engine.46999.n3.nabble.com/Retrieve-rule-names-fired-from- StatefulknowledgeSession-tp969508p969508.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Error while executing business Rule
Hi friends, Some times i gets the error while executing rules so after that Rules accross entire screen stops working .. So can anyone tell me what can be the cause why it becomes unstable after that. Thanks Puneet ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Error while executing business Rule
Your rules are probably written wrong, or your application, or you have a dodgy computer, or you have a race condition, or it is doing exactly what it should be doing and your expectations are wrong. There's also possibly a small chance that there is a bug in drools but with absolutely no information about what the problem is or what you are doing I'd be inclined to check all the other options first. From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Puneet duggal Sent: 15 July 2010 14:42 To: Rules Users List Subject: [rules-users] Error while executing business Rule Hi friends, Some times i gets the error while executing rules so after that Rules accross entire screen stops working .. So can anyone tell me what can be the cause why it becomes unstable after that. Thanks Puneet ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Error while executing business Rule
but after that error my rules on none of the screens work why so On 7/15/10, Swindells, Thomas tswinde...@nds.com wrote: Your rules are probably written wrong, or your application, or you have a dodgy computer, or you have a race condition, or it is doing exactly what it should be doing and your expectations are wrong. There’s also possibly a small chance that there is a bug in drools but with absolutely no information about what the problem is or what you are doing I’d be inclined to check all the other options first. *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Puneet duggal *Sent:* 15 July 2010 14:42 *To:* Rules Users List *Subject:* [rules-users] Error while executing business Rule Hi friends, Some times i gets the error while executing rules so after that Rules accross entire screen stops working .. So can anyone tell me what can be the cause why it becomes unstable after that. Thanks Puneet -- ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] persistence.xml for 5.1.0.M2?
Can anyone give me a hint where I can find the persistence.xml that works with version 5.1.0.M2? Thanks! -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/persistence-xml-for-5-1-0-M2-tp969868p969868.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Error while executing business Rule
Yoda? You is that? GreG On Jul 15, 2010, at 9:53, Puneet duggal duggalpu...@gmail.com wrote: but after that error my rules on none of the screens work why so On 7/15/10, Swindells, Thomas tswinde...@nds.com wrote: Your rules are probably written wrong, or your application, or you have a dodgy computer, or you have a race condition, or it is doing exactly what it should be doing and your expectations are wrong. There’s also possibly a small chance that there is a bug in drools but with absolutely no information about what the problem is or what you are doing I’d be inclined to check all the other options first. From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Puneet duggal Sent: 15 July 2010 14:42 To: Rules Users List Subject: [rules-users] Error while executing business Rule Hi friends, Some times i gets the error while executing rules so after that Rules accross entire screen stops working .. So can anyone tell me what can be the cause why it becomes unstable after that. Thanks Puneet ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] orm.xml for 5.1.0.M2?
Is the orm.xml in drools-persistence-jpa-5.1.0.M2.jar still correct?
I'm getting the exception:
Error in named query: ProcessInstancesWaitingForEvent
org.hibernate.QueryException: cannot dereference scalar collection element:
name [select processInstanceInfo.processInstanceId from
org.drools.persistence.processinstance.ProcessInstanceInfo
processInstanceInfo where :type in (processInstanceInfo.eventTypes.name)]
And the query in orm.xml in fact doesn't seem to reflect the latest changes
in ProcessInstanceInfo.java (?)
--- org.drools.persistence.processinstance.ProcessInstanceInfo.java
// @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE})
// @JoinColumn(name = processInstanceId)
// private SetEventType eventTypes = new HashSetEventType();
private @CollectionOfElements
@JoinTable(name = EventTypes, joinColumns = @JoinColumn(name =
InstanceId))
SetString eventTypes = new HashSetString();
--- orm.xml:
query
select
processInstanceInfo.processInstanceId
from
ProcessInstanceInfo processInstanceInfo
where
:type in (processInstanceInfo.eventTypes.name)
/query
(Removing the .name in the query didn't help...)
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Re: [rules-users] Error while executing business Rule
You probably should post an examples describing your problem. I think that the drools community don't have any clairvoyant powers :p De : rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] De la part de Greg Barton Envoyé : jeudi 15 juillet 2010 17:51 À : Rules Users List Objet : Re: [rules-users] Error while executing business Rule Yoda? You is that? GreG On Jul 15, 2010, at 9:53, Puneet duggal duggalpu...@gmail.commailto:duggalpu...@gmail.com wrote: but after that error my rules on none of the screens work why so On 7/15/10, Swindells, Thomas mailto:tswinde...@nds.comtswinde...@nds.commailto:tswinde...@nds.com wrote: Your rules are probably written wrong, or your application, or you have a dodgy computer, or you have a race condition, or it is doing exactly what it should be doing and your expectations are wrong. There's also possibly a small chance that there is a bug in drools but with absolutely no information about what the problem is or what you are doing I'd be inclined to check all the other options first. From: mailto:rules-users-boun...@lists.jboss.org rules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org [mailto:mailto:rules-users-boun...@lists.jboss.orgrules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org] On Behalf Of Puneet duggal Sent: 15 July 2010 14:42 To: Rules Users List Subject: [rules-users] Error while executing business Rule Hi friends, Some times i gets the error while executing rules so after that Rules accross entire screen stops working .. So can anyone tell me what can be the cause why it becomes unstable after that. Thanks Puneet ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the mailto:postmas...@nds.com postmas...@nds.commailto:postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list mailto:rules-users@lists.jboss.orgrules-users@lists.jboss.orgmailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-usershttps://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.orgmailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users /PREp style=font-family:arial;color:grey style=font-size:13pxThis message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message./pPRE ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] FW: Drools 5.1.0.M2 - WorkItemNodeInstance --Listeners can't get hold of WorkItem object
Hi @Salaboy, I am not sure if you received the email below. Thanks for looking into this. Vijay From: Vijay K Pandey Sent: Tuesday, July 13, 2010 8:53 AM To: 'Mauricio Salatino' Subject: RE: [rules-users] Drools 5.1.0.M2 - WorkItemNodeInstance --Listeners can't get hold of WorkItem object Thanks for a quick response. I added the Transaction Manager piece of code but the problem still persists. Also it uses the attached persistence.xml file which is placed under META-INF directory that has the correct transaction manager look up class. Thanks Vijay From: Mauricio Salatino [mailto:sala...@gmail.com] Sent: Tuesday, July 13, 2010 6:40 AM To: Vijay K Pandey Subject: Re: [rules-users] Drools 5.1.0.M2 - WorkItemNodeInstance --Listeners can't get hold of WorkItem object I've just take a quick look to your file and I notice (without running it) that you didn't set the TransactionManager property to your Environment: env.set( EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager() ); You also need to have the reference to bitronix inside your persistence.xml file: property name=hibernate.transaction.manager_lookup_class value=org.hibernate.transaction.BTMTransactionManagerLookup/ Can you try this and let me know if it fix your problem? Greetings On Tue, Jul 13, 2010 at 12:43 AM, Vijay K Pandey vpan...@mdes.ms.govmailto:vpan...@mdes.ms.gov wrote: Thanks Salaboy for looking into this. Here is the Junit Test case(java file attached) I created for this problem. Line # 129 fails. Please do let me know if I am doing something wrong or the fix has some issues or maybe there is some other way out to get hold of the WorkItem object in the process event listener. Thanks Vijay From: rules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org] On Behalf Of Salaboy Sent: Friday, July 09, 2010 11:11 AM To: Rules Users List Subject: Re: [rules-users] Drools 5.1.0.M2 - WorkItemNodeInstance -- Listeners can't get hold of WorkItem object I would like to take a look on this issue. Can you provide me a test case that show the problem? - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Mauricio Salaboy Salatino - On Jul 9, 2010, at 12:43, Vijay K Pandey vpan...@mdes.ms.govmailto:vpan...@mdes.ms.gov wrote: I guess this problem was due to a fix done in WorkItemNodeInstance? Is this the correct behavior? If yes how do we get hold of WorkItem instance in the attached listeners? http://fisheye.jboss.org/browse/JBossRules/trunk/drools-core/src/main/java/org/drools/workflow/instance/node/WorkItemNodeInstance.java?r1=32801r2= Thanks Vijay From: Vijay K Pandey Sent: Tuesday, June 15, 2010 9:20 AM To: 'Rules Users List' Subject: RE: Drools 5.1.0.M2 - WorkItemNodeInstance -- Listeners can't get hold of WorkItem object Any one on this issue? Any Drools Flow expert? Appreciate your time for taking a look at it. Thanks Vijay From: Vijay K Pandey Sent: Thursday, June 10, 2010 12:03 PM To: 'Rules Users List' Subject: RE: Drools 5.1.0.M2 - WorkItemNodeInstance -- Listeners can't get hold of WorkItem object Should I log this as a JIRA ticket. Thanks Vijay From: Vijay K Pandey Sent: Wednesday, June 09, 2010 9:57 AM To: 'Rules Users List' Subject: Drools 5.1.0.M2 - WorkItemNodeInstance -- Listeners can't get hold of WorkItem object Hi, There is a change done in Drools 5.1.0.M2 - org.drools.workflow.instance.node.WorkItemNodeInstance class in the method public void triggerCompleted(WorkItem workItem) at line 196 which is setting the workItemId as -1 this.workItemId = -1; Due to the above change the listeners which are attached to the complete event of the work item - such as the method below public void beforeNodeLeft(ProcessNodeLeftEvent event) are not able to get hold of the associated workitem object as it returns null. Is there any specific reason that workItemId is set to -1 even before the associated listeners get triggered or is this a bug? If it was an intended change then how do I get hold of the WorkItem object in the attached listeners. Thanks Vijay p.s This change was not there in the snapshot of 18th April 2010 which I was earlier working on. Above is the only change in this class from the snapshot of 18th April and 5.1.0.M2 ___ rules-users mailing list rules-users@lists.jboss.orgmailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Salatino Salaboy Mauricio - persistence.xml Description: persistence.xml TestProcessEvent.java Description: TestProcessEvent.java ___ rules-users mailing
[rules-users] Gunvor Rule Editor problem?
I have downloaded Guvnor build 4122 from http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/ I'm using this version because of the BPMN editor provided. However, the Guvnor Rule Editor is not behaving the same. In the When condition, the action is greyed out and I cannot change the properties of the action I have added. A screenshot is upload to http://img693.imageshack.us/img693/2567/guvnorq.jpg I can't remember the all build number I have tried but 2 of them are build 4083 and 4097. In some cases, the Rule Editor is working as I previously used it but upon opening a model, it shows the screen same as 5.0 where a upload option is available. But, in some other build when the designer is loaded up nicely, the Rule Editor did not behave the same way as it previously did. If the Rule Editor has changed the way it works, please let me know how to go about edition the Set value of XXX option. Thanks. Han Ming ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Improving Drools Memory Performance
Hi again, By removing all of the simple eval()s from my rules, I have cut heap usage by at least an order of magnitude. However this still isn't enough. Since I am trying to reduce the cross-product size (as in SQL), I recall that most SQL implementations have a DESCRIBE SELECT query which provides real-time information about the complexity of a given SQL query - i.e. the size of the tables, indexes used, and so on. Is there any such tool available for Drools? Are there any tools which can provide clues as to which rules are using the most memory? Alternatively, I am wondering what kind of benefit I could expect from using materialized views to create summary tables; that is, deriving and inserting additional facts. This would allow Drools to rewrite queries that currently use eval(), but would increase the size of working memory, so would this actually save heap size? To what extent does Drools rewrite queries? Is there any documentation describing the approaches used? Any other ideas on how to reduce heap memory usage? I'd appreciate any ideas :) Thanks Jevon On Mon, Jul 12, 2010 at 5:56 PM, Jevon Wright je...@jevon.org wrote: Hi Wolfgang and Mark, Thank you for your replies! You were correct: my eval() functions could generally be rewritten into Drools directly. I had one function connectsDetail that was constraining unidirectional edges, and could be rewritten from: detail : DetailWire ( ) eval ( functions.connectsDetail(detail, source, target) ) to: detail : DetailWire ( from == source, to == target ) Another function, connects, was constraining bidirectional edges, and could be rewritten from: sync : SyncWire( ) eval ( functions.connects(sync, source, target) ) to: sync : SyncWire( (from == source to == target) || (from == target to == source) ) Finally, the veto function could be rewritten from: detail : DetailWire ( ) eval ( handler.veto(detail) ) to: detail : DetailWire ( overridden == false ) I took each of these three changes, and evaluated them separately [1]. I found that: 1. Inlining 'connectsDetail' made a huge difference - 10-30% faster execution and 50-60% less allocated heap. 2. Inlining 'connects' made very little difference - 10-30% faster execution, but 0-20% more allocated heap. 3. Inlining 'veto' made no difference - no significant change in execution speed or allocated heap. I think I understand why inlining 'connects' would improve heap usage - because the rules essentially have more conditionals? I also understand why 'veto' made no difference - for most of my test models, overridden was never true, so adding this conditional was not making the cross product set any smaller. Finally, I also tested simply joining all of the rules together into one file. This happily made no difference at all (although made it more difficult to edit). So I think I can safely conclude that eval() should be used as little as possible - however, this means that the final rules are made more complicated and less human-readable, so a DSL may be best for my common rule patterns in the future. Thanks again! Jevon [1]: http://www.jevon.org/wiki/Improving_Drools_Memory_Performance On Sat, Jul 10, 2010 at 12:28 AM, Wolfgang Laun wolfgang.l...@gmail.com wrote: On 9 July 2010 14:14, Mark Proctor mproc...@codehaus.org wrote: You have many objects there that are not constrained; I have an inkling that the functions.*() are hiding just these contraints, It's certainly the wrong way, starting with oodles of node pairs, just to pick out connected ones by fishing for the connecting edge. And this is worsened by trying to find two such pairs which meet at some DomainSource Guesswork, hopefully educated ;-) -W if there are multiple versions of those objects you are going to get massive amounts of cross products. Think in terms of SQL, each pattern you add is like an SQL join. Mark On 09/07/2010 09:20, Jevon Wright wrote: Hi everyone, I am working on what appears to be a fairly complex rule base based on EMF. The rules aren't operating over a huge number of facts (less than 10,000 EObjects) and there aren't too many rules (less than 300), but I am having a problem with running out of Java heap space (set at ~400 MB). Through investigation, I came to the conclusion that this is due to the design of the rules, rather than the number of facts. The engine uses less memory inserting many facts that use simple rules, compared with inserting few facts that use many rules. Can anybody suggest some tips for reducing heap memory usage in Drools? I don't have a time constraint, only a heap/memory constraint. A sample rule in my project looks like this: rule Create QueryParameter for target container of DetailWire when container : Frame( ) schema : DomainSchema ( ) domainSource : DomainSource ( ) instance : DomainIterator( )
Re: [rules-users] Improving Drools Memory Performance
On 16/07/2010 04:16, Jevon Wright wrote: Hi again, By removing all of the simple eval()s from my rules, I have cut heap usage by at least an order of magnitude. However this still isn't enough. Since I am trying to reduce the cross-product size (as in SQL), I recall that most SQL implementations have a DESCRIBE SELECT query which provides real-time information about the complexity of a given SQL query - i.e. the size of the tables, indexes used, and so on. Is there any such tool available for Drools? Are there any tools which can provide clues as to which rules are using the most memory? no, but sounds like a nice side project :) Alternatively, I am wondering what kind of benefit I could expect from using materialized views to create summary tables; that is, deriving and inserting additional facts. This would allow Drools to rewrite queries that currently use eval(), but would increase the size of working memory, so would this actually save heap size? To what extent does Drools rewrite queries? Is there any documentation describing the approaches used? The only rewriting we do is on literal constraints, moving == ones to the front, that's it. Also make sure you are using trunk, which is more memory efficient for modifies: https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/ Mark Any other ideas on how to reduce heap memory usage? I'd appreciate any ideas :) Thanks Jevon On Mon, Jul 12, 2010 at 5:56 PM, Jevon Wright je...@jevon.org mailto:je...@jevon.org wrote: Hi Wolfgang and Mark, Thank you for your replies! You were correct: my eval() functions could generally be rewritten into Drools directly. I had one function connectsDetail that was constraining unidirectional edges, and could be rewritten from: detail : DetailWire ( ) eval ( functions.connectsDetail(detail, source, target) ) to: detail : DetailWire ( from == source, to == target ) Another function, connects, was constraining bidirectional edges, and could be rewritten from: sync : SyncWire( ) eval ( functions.connects(sync, source, target) ) to: sync : SyncWire( (from == source to == target) || (from == target to == source) ) Finally, the veto function could be rewritten from: detail : DetailWire ( ) eval ( handler.veto(detail) ) to: detail : DetailWire ( overridden == false ) I took each of these three changes, and evaluated them separately [1]. I found that: 1. Inlining 'connectsDetail' made a huge difference - 10-30% faster execution and 50-60% less allocated heap. 2. Inlining 'connects' made very little difference - 10-30% faster execution, but 0-20% more allocated heap. 3. Inlining 'veto' made no difference - no significant change in execution speed or allocated heap. I think I understand why inlining 'connects' would improve heap usage - because the rules essentially have more conditionals? I also understand why 'veto' made no difference - for most of my test models, overridden was never true, so adding this conditional was not making the cross product set any smaller. Finally, I also tested simply joining all of the rules together into one file. This happily made no difference at all (although made it more difficult to edit). So I think I can safely conclude that eval() should be used as little as possible - however, this means that the final rules are made more complicated and less human-readable, so a DSL may be best for my common rule patterns in the future. Thanks again! Jevon [1]: http://www.jevon.org/wiki/Improving_Drools_Memory_Performance On Sat, Jul 10, 2010 at 12:28 AM, Wolfgang Laun wolfgang.l...@gmail.com mailto:wolfgang.l...@gmail.com wrote: On 9 July 2010 14:14, Mark Proctor mproc...@codehaus.org mailto:mproc...@codehaus.org wrote: You have many objects there that are not constrained; I have an inkling that the functions.*() are hiding just these contraints, It's certainly the wrong way, starting with oodles of node pairs, just to pick out connected ones by fishing for the connecting edge. And this is worsened by trying to find two such pairs which meet at some DomainSource Guesswork, hopefully educated ;-) -W if there are multiple versions of those objects you are going to get massive amounts of cross products. Think in terms of SQL, each pattern you add is like an SQL join. Mark On 09/07/2010 09:20, Jevon Wright wrote: Hi everyone, I am working on what appears to be a fairly complex rule base based on EMF. The rules aren't operating over a huge number of facts (less than 10,000 EObjects) and there aren't too many rules (less than 300), but I am having a problem with running out of Java
[rules-users] JMS Fusion entry point
Hi, we'd like to use Drools Fusion for processing RFID messages coming from vehicles to be remotely monitored. I'm quite new to Drools and I'm looking for an example/sample code showing how to define and use a JMS topic as an event entry point for Drools Fusion rules. Can anybody point me to or provide a working code sample ? Any help would be greatly appreciated. Thanks a lot for helping. Maurizio___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
