Re: [rules-users] decision and prediction based on the same set of rules
yeah, that is what we are doing to the complicated statements. We may end up doing this for the prediction part. On Wed, Jul 31, 2013 at 10:33 AM, Stephen Masters wrote: > btw - If you ever find the statements being written by the business team > to be a bit weird, and overly technical, just create a simple DSL phrase to > hide what is actually happening. > > This way, you can have a statement "Reject the request", which might in > reality perform multiple actions, such as inserting and modifying facts. > > > On 31 Jul 2013, at 14:36, Sean Su wrote: > > I agree with your points, Steve. > > I know this solution will require certain "statements" on the RHS which I > am trying to avoid due to the fact that the "business team" is authorizing > the rules. But I will keep that as an option. > > Thanks > > Sean > > > On Tue, Jul 30, 2013 at 5:36 PM, Stephen Masters > wrote: > >> Something to consider, which I have used for some rules is that instead >> of those rules making a 'decision' they can insert a restriction fact. >> >> You can then create technical rules, which match on those restriction >> facts. >> >> Also, it's very simple to write code to look at the facts in the working >> memory, so you can establish what date range a restriction applies to. Much >> easier than examining the LHS of rules. >> >> Steve >> >> >> On 30 Jul 2013, at 20:49, Sean Su wrote: >> >> > Our rules will be using "Date" heavily when making decisions. When the >> LHS involving dates is evaluated "true", decision will be made. >> > >> > Meanwhile, from prediction point of view, we want to know when the LHS >> would be evaluated to false, with the changes made to the date fields >> (forward to the future). Therefore this becomes prediction - what is the >> future date that would cause the LHS to be false. >> > >> > Question to the list: >> > has anyone explored the possibility of using the same set of rules to >> achieve both tasks? >> > >> > If there is no tools automatically doing this in Drools (I doubt there >> is), I am thinking to build a tool to parse the rules and then >> auto-generate the prediction rules based on the "decision" rules. Is this >> the right direction? >> > >> > Any inputs will be appreciated. >> > >> > thanks >> > >> > Sean >> > ___ >> > 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 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] Scheduling Application and Optaplanner
Just started researching OptaPlanner. Loaded examples in Eclipse and got them running. I'm interested in extending the Nurse rostering example to work with a scheduling application I have written. I have some interesting constraints though that wanted to reach out to the community with to make sure they can be accomodated. My scheduling app has a hierachical entity setup with Organizations and child locations. An employee can be configured to work at multiple locations and are also assigned a "Primary" location which means they should be picked up on shifts at that location before an employee that does not have that location as primary. Also I have a priority group or ranking (1-10) which would be considered in sorting employees as well. Shifts are location, date/time and skill specific with a configured amount of resources needed. Shift Examples Location 1 = 2 nurses, (Monday Wednesay Friday), 7AM - 11PM Location 1 = 1 nurse, (Sunday,Tuesday,Thursday,Saturday), 7AM - 11PM Constraints for an employee Max Hours/Week: 0.00 Min Hours/Week: 0.00 Max Hours/Day: 0.00 Min Hours/Day: 0.00 Max Days/Week: 0.00 Max Consecutive Days: 0.00 Max Shifts/Day: 0.00 Max Shifts/Month: 2.00 Max Weekend Shifts/Month0.00 Max Consecutive Shifts of Duration 0.00 consecutive 0.00 hr shifts -- View this message in context: http://drools.46999.n3.nabble.com/Scheduling-Application-and-Optaplanner-tp4025244.html Sent from the Drools: User forum 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] decision and prediction based on the same set of rules
btw - If you ever find the statements being written by the business team to be a bit weird, and overly technical, just create a simple DSL phrase to hide what is actually happening. This way, you can have a statement "Reject the request", which might in reality perform multiple actions, such as inserting and modifying facts. On 31 Jul 2013, at 14:36, Sean Su wrote: > I agree with your points, Steve. > > I know this solution will require certain "statements" on the RHS which I am > trying to avoid due to the fact that the "business team" is authorizing the > rules. But I will keep that as an option. > > Thanks > > Sean > > > On Tue, Jul 30, 2013 at 5:36 PM, Stephen Masters > wrote: > Something to consider, which I have used for some rules is that instead of > those rules making a 'decision' they can insert a restriction fact. > > You can then create technical rules, which match on those restriction facts. > > Also, it's very simple to write code to look at the facts in the working > memory, so you can establish what date range a restriction applies to. Much > easier than examining the LHS of rules. > > Steve > > > On 30 Jul 2013, at 20:49, Sean Su wrote: > > > Our rules will be using "Date" heavily when making decisions. When the LHS > > involving dates is evaluated "true", decision will be made. > > > > Meanwhile, from prediction point of view, we want to know when the LHS > > would be evaluated to false, with the changes made to the date fields > > (forward to the future). Therefore this becomes prediction - what is the > > future date that would cause the LHS to be false. > > > > Question to the list: > > has anyone explored the possibility of using the same set of rules to > > achieve both tasks? > > > > If there is no tools automatically doing this in Drools (I doubt there is), > > I am thinking to build a tool to parse the rules and then auto-generate the > > prediction rules based on the "decision" rules. Is this the right direction? > > > > Any inputs will be appreciated. > > > > thanks > > > > Sean > > ___ > > 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] decision and prediction based on the same set of rules
I agree with your points, Steve. I know this solution will require certain "statements" on the RHS which I am trying to avoid due to the fact that the "business team" is authorizing the rules. But I will keep that as an option. Thanks Sean On Tue, Jul 30, 2013 at 5:36 PM, Stephen Masters wrote: > Something to consider, which I have used for some rules is that instead of > those rules making a 'decision' they can insert a restriction fact. > > You can then create technical rules, which match on those restriction > facts. > > Also, it's very simple to write code to look at the facts in the working > memory, so you can establish what date range a restriction applies to. Much > easier than examining the LHS of rules. > > Steve > > > On 30 Jul 2013, at 20:49, Sean Su wrote: > > > Our rules will be using "Date" heavily when making decisions. When the > LHS involving dates is evaluated "true", decision will be made. > > > > Meanwhile, from prediction point of view, we want to know when the LHS > would be evaluated to false, with the changes made to the date fields > (forward to the future). Therefore this becomes prediction - what is the > future date that would cause the LHS to be false. > > > > Question to the list: > > has anyone explored the possibility of using the same set of rules to > achieve both tasks? > > > > If there is no tools automatically doing this in Drools (I doubt there > is), I am thinking to build a tool to parse the rules and then > auto-generate the prediction rules based on the "decision" rules. Is this > the right direction? > > > > Any inputs will be appreciated. > > > > thanks > > > > Sean > > ___ > > 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
Re: [rules-users] No errors thrown from KnowledgeAgent
The bug was caused by one of the InputStreams that was not closed
properly which caused the knowledgeAgent to block.
I think my issues are solved now.
Thanks for looking into this.
Kind Regards,
Op 31/07/2013 14:19, De Rooms Brecht schreef:
Hello David and thanks for responding.
I know it supports these event listeners and I use them. In my
program, I have two knowledge agents and the first one (preprocessing)
will read the file, preprocess a DRL and then write a second modified
DRL file in a folder that is monitored by the second one. When I
modify the original DRL file *(1.* in prints below*)* monitored by the
preprocessing agent, everything works fine and the rule is
triggered*(**2.)*. However, when I delete a file *(**3.)*, the
knowledgeAgent just blocks after AfterChangeSetAppliedEvent and does
not do anything anymore.. If I send new data in the knowledgeAgent it
does not react anymore.
I would expect to get a stacktrace of what went wrong but I do not get
any info besides of the systemeventlistener or knowledgeagentlistener.
Is there any way I can get a stacktrace?
Kind Regards,
De Rooms Brecht
_*1. Resources Changed => Modified: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]*_
/eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1::: ==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[ResourceCompilationFailedEvent:
org.drools.builder.impl.KnowledgeBuilderImpl@70d0d127]//
//eventListener 1::: ==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@49669be]//
//eventListener 1::: ==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2::: ==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\packaged\test.brules.testRule.drl']]//
//eventListener 2:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\packaged\test.brules.testRule.drl']]//
//eventListener 2::: ==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2::: ==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@11c834d1]/
_*2. Rules are triggered when the PKG file its knowledge is updated:*_
/Changed This Rule::: Got Event: TestEvent( number=5,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=4,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//
//eventListener 2::: ==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[BeforeChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[], knowledgeDefinitionsRemoved=[]}]/
_*3. *__*Resources Changed => *__*Removed: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]*_
/eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_MODIFIED): [FileResource
file='knowl
Re: [rules-users] No errors thrown from KnowledgeAgent
Hello David and thanks for responding.
I know it supports these event listeners and I use them. In my program,
I have two knowledge agents and the first one (preprocessing) will read
the file, preprocess a DRL and then write a second modified DRL file in
a folder that is monitored by the second one. When I modify the original
DRL file *(1.* in prints below*)* monitored by the preprocessing agent,
everything works fine and the rule is triggered*(**2.)*. However, when I
delete a file *(**3.)*, the knowledgeAgent just blocks after
AfterChangeSetAppliedEvent and does not do anything anymore.. If I send
new data in the knowledgeAgent it does not react anymore.
I would expect to get a stacktrace of what went wrong but I do not get
any info besides of the systemeventlistener or knowledgeagentlistener.
Is there any way I can get a stacktrace?
Kind Regards,
De Rooms Brecht
_*1. Resources Changed => Modified: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]*_
/eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1::: ==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[ResourceCompilationFailedEvent:
org.drools.builder.impl.KnowledgeBuilderImpl@70d0d127]//
//eventListener 1::: ==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@49669be]//
//eventListener 1::: ==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2::: ==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\packaged\test.brules.testRule.drl']]//
//eventListener 2:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED): [FileResource
file='knowledge\packaged\test.brules.testRule.drl']]//
//eventListener 2::: ==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 2::: ==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@11c834d1]/
_*2. Rules are triggered when the PKG file its knowledge is updated:*_
/Changed This Rule::: Got Event: TestEvent( number=5,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=4,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=2,
message=doesDynamicEventTypeWork? )//
//Changed This Rule::: Got Event: TestEvent( number=1,
message=doesDynamicEventTypeWork? )//
//
//eventListener 2::: ==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]//
//eventListener 1::: ==>[BeforeChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[], knowledgeDefinitionsRemoved=[]}]/
_*3. *__*Resources Changed => *__*Removed: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]*_
/eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_MODIFIED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1:::
==>[AfterResourceProcessedEvent(RESOURCE_MODIFIED): [FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]//
//eventListener 1::: ==>[AfterChange
Re: [rules-users] uninformative rule parsing/compiling error -> org.drools.rule.Rule cannot be cast to org.drools.rule.Query
I could not reproduce the issue..
could you submit a self-contained, obfuscated test case (DRL + classes)?
I suspect you are leaving out some detail which is the real cause of the
error
Thanks
Davide
p.s. I used this mock class:
package vrpn;
public class TrackerRemote {
public TrackerUpdate getUpdate() {
return new TrackerUpdate();
}
public class TrackerUpdate {
}
}
and your rule, removing the "message" from the RHS
On 07/30/2013 01:51 AM, De Rooms Brecht wrote:
> Op 24/07/2013 14:24, Davide Sottara schreef:
>> Two clarifications first:
>>
>> 1) Which version are you using?
> I am using version 5.5
>> 2) Is TrackerUpdate a static class inside TrackerRemote?
>> In case, could you post the exact "import" statements you are using?
>>
> the TrackerUpdate is not static, but it's a class defined within the
> TrackerUpdate class.
> /public class TrackerRemote
>
> public class TrackerUpdate {
> public java.util.Date msg_time;
> public int sensor;
> public double[] pos;
> public double[] quat;
>
> public TrackerUpdate() { /* compiled code */ }
> }/
>
> The full imports and rule is:
> package derooms.be.testRule
> import derooms.be.server.predefinedtypes.Event;
> import derooms.be.test.Message;
> import vrpn.TrackerRemote;
> /
> rule "TrackerRemote.TrackerUpdate"
> when
> message:TrackerRemote.TrackerUpdate()
> then
> System.out.println("Tracker: " + message);
> end/
>
> Sorry that I didn't sent it earlier, I actually sent this e-mail
> already but it didn't came through.
>
> B
>
>> Thanks
>> Davide
>>
>> On 07/24/2013 02:14 PM, De Rooms Brecht wrote:
>>> Dear rules users,
>>>
>>> I am currently writing my own Drools-server since I wanted more
>>> control than the drools-execution server (and it never worked very
>>> well here) where I can send rules/facts over JMS/AQMP/STOMP. Rules
>>> which are sent are saved on the server-side in DRL files that are
>>> monitored. That way, I can debug easily by changing the sent files.
>>> However, when I sent the following code, the agent does not provide
>>> me with an error message at all and hangs:
>>> /
>>> //rule "TrackerRemote.TrackerUpdate"//
>>> //when//
>>> //message:TrackerRemote.TrackerUpdate()//
>>> //then//
>>> //System.out.println("Tracker: " + message);//
>>> //end/
>>>
>>> at first I thought it was because TrackerRemote.TrackerUpdate is not
>>> in that package anymore and thus unknown so I tried to send the rule
>>> listed below which gives me the nice and expected error:
>>> Unable to resolve ObjectType 'NotExistingType' : [Rule name='Foo']
>>>
>>> /rule "Foo"//
>>> //when //
>>> //NotExistingType( bloe == "test")//
>>> //then//
>>> //System.out.println("this should not work");//
>>> //end/
>>>
>>> when I compile the rule myself with a KnowledgeBuilder:
>>>
>>> KnowledgeBuilder kbuilder =
>>> KnowledgeBuilderFactory.newKnowledgeBuilder();
>>> InputStream is = new ByteArrayInputStream(drlstring.getBytes());
>>> kbuilder.add(
>>> ResourceFactory.newInputStreamResource(is),ResourceType.DRL );
>>>
>>> I receive the error:
>>> org.drools.rule.Rule cannot be cast to org.drools.rule.Query
>>> which I think doesn't tell me anything about the mistake I made in
>>> my rule, is this a Drools bug and should I post this somewhere?
>>>
>>> Kind Regards,
>>> De Rooms Brecht
>>>
>>>
>>> Full Stack:
>>> java.lang.ClassCastException: org.drools.rule.Rule cannot be cast to
>>> org.drools.rule.Query
>>> at
>>> org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:175)
>>> at
>>> org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:118)
>>> at
>>> org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:67)
>>> at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:84)
>>> at
>>> org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2706)
>>> at
>>> org.drools.compiler.PackageBuilder.compileRules(PackageBuilder.java:930)
>>> at
>>> org.drools.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:839)
>>> at
>>> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:831)
>>> at
>>> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467)
>>> at
>>> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673)
>>> at
>>> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45)
>>> at
>>> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34)
>>> at
>>> derooms.be.server.listeners.RulesListener.processMessage(RulesListener.java:33)
>>> at
>>> derooms.be.server.listeners.AbstractListener.onMessage(AbstractListener.java:35)
>>> at
>>> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1321)
>>> at
>>> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecuto
Re: [rules-users] NullPointerException when updating a fact
Seems they forgot to put 5.6 on CI.. I've asked a few times, with little success :( I'll try again. Otherwise, one would have to download the source code and build it locally On 07/31/2013 12:53 AM, Wolfgang Laun wrote: > Ids there any 5.6.0-x with x != Final to be downloaded? > -W > > On 31/07/2013, Davide Sottara wrote: >> 5.6 already solves the NPE with this particular ruleset. >> It is ready to be released, one last issue pending. >> It will likely be the last of the 5.x series.. anyone willing to give it >> a try >> is more than welcome >> Davide >> >> >> On 07/30/2013 08:06 AM, Stephen Masters wrote: >>> So far I have stuck with 5.3.0. It's not perfect, but I have found it >>> pretty good and reliable. >>> >>> I think that 5.4.0 was a reasonable improvement, but I haven't used it in >>> anger. For me, there wasn't enough improvement in it from 5.3 to merit >>> spending time on an upgrade, so I was waiting for 5.5.0. Maybe others >>> could chime in on that one. >>> >>> I did spend time upgrading my 5.3 project to 5.5.0, because it looked so >>> promising. But I encountered several critical bugs which meant that large >>> chunks of Guvnor functionality just didn't work. I fell back to 5.3.0 >>> again. >>> >>> I'm really hoping to see 5.5.1 before too long, but I think that it has >>> been "a couple of weeks away" for the past 6 months, so I'm not holding my >>> breath. :) >>> >>> Given the extent of change in 6, I wouldn't recommend going anywhere near >>> it unless you're just tinkering with it in your own time to see where >>> things are going. I'm doing that myself at the moment, but it's hard work >>> given the lack of documentation or books. I suspect that we'll be hit by a >>> big wave of books on it before long! >>> >>> So I guess that if I was starting a new project for a client, I would >>> probably go with 5.4.0.Final. >>> >>> Steve >>> >>> >>> On 30 Jul 2013, at 15:18, schenka7 wrote: >>> Thank you Steve, you are right. It was a bug in the 5.5.0.Final. After I switched to 5.4.0.Final it started to work. I was suspecting that the newer version is the one with the most bug fixes. Apparently I was wrong. Which version of Drools would you recommend? -- View this message in context: http://drools.46999.n3.nabble.com/NullPointerException-when-updating-a-fact-tp4025181p4025217.html Sent from the Drools: User forum 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 >>> >> ___ >> 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
Re: [rules-users] NullPointerException when updating a fact
Ids there any 5.6.0-x with x != Final to be downloaded? -W On 31/07/2013, Davide Sottara wrote: > 5.6 already solves the NPE with this particular ruleset. > It is ready to be released, one last issue pending. > It will likely be the last of the 5.x series.. anyone willing to give it > a try > is more than welcome > Davide > > > On 07/30/2013 08:06 AM, Stephen Masters wrote: >> So far I have stuck with 5.3.0. It's not perfect, but I have found it >> pretty good and reliable. >> >> I think that 5.4.0 was a reasonable improvement, but I haven't used it in >> anger. For me, there wasn't enough improvement in it from 5.3 to merit >> spending time on an upgrade, so I was waiting for 5.5.0. Maybe others >> could chime in on that one. >> >> I did spend time upgrading my 5.3 project to 5.5.0, because it looked so >> promising. But I encountered several critical bugs which meant that large >> chunks of Guvnor functionality just didn't work. I fell back to 5.3.0 >> again. >> >> I'm really hoping to see 5.5.1 before too long, but I think that it has >> been "a couple of weeks away" for the past 6 months, so I'm not holding my >> breath. :) >> >> Given the extent of change in 6, I wouldn't recommend going anywhere near >> it unless you're just tinkering with it in your own time to see where >> things are going. I'm doing that myself at the moment, but it's hard work >> given the lack of documentation or books. I suspect that we'll be hit by a >> big wave of books on it before long! >> >> So I guess that if I was starting a new project for a client, I would >> probably go with 5.4.0.Final. >> >> Steve >> >> >> On 30 Jul 2013, at 15:18, schenka7 wrote: >> >>> Thank you Steve, you are right. It was a bug in the 5.5.0.Final. >>> After I switched to 5.4.0.Final it started to work. >>> >>> I was suspecting that the newer version is the one with the most bug >>> fixes. >>> Apparently I was wrong. >>> Which version of Drools would you recommend? >>> >>> >>> >>> -- >>> View this message in context: >>> http://drools.46999.n3.nabble.com/NullPointerException-when-updating-a-fact-tp4025181p4025217.html >>> Sent from the Drools: User forum 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 >> > > ___ > 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] No errors thrown from KnowledgeAgent
The KA logs to a SystemEventListener, and supports a dedicated event listener for additions/updates/etc... You can do: kagent.setSystemEventListener( new PrintStreamSystemEventListener() ); kagent.addEventListener( new DebugKnowledgeAgentEventListener( ) ); On 07/30/2013 01:55 AM, De Rooms Brecht wrote: > Dear Drools users, > > I have been testing with the KnowledgeAgent from version 5.4 and 5.5. It > monitors a changeset and is set to incrementally build the > knowledgebase. I noticed that it sometimes crashes but never throws out > errors. This happens for example when I define a type two times and when > I remove a file. Does anyone experience similar behaviour and has an > idea of how I could see the errors? I already tried to check the errors > by building it myself using a knowledgebuilder before I update the file > that the knowledgeAgent monitors but that's quite a dirty solution. > > Kind Regards, > De Rooms Brecht > ___ > 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] NullPointerException when updating a fact
5.6 already solves the NPE with this particular ruleset. It is ready to be released, one last issue pending. It will likely be the last of the 5.x series.. anyone willing to give it a try is more than welcome Davide On 07/30/2013 08:06 AM, Stephen Masters wrote: > So far I have stuck with 5.3.0. It's not perfect, but I have found it pretty > good and reliable. > > I think that 5.4.0 was a reasonable improvement, but I haven't used it in > anger. For me, there wasn't enough improvement in it from 5.3 to merit > spending time on an upgrade, so I was waiting for 5.5.0. Maybe others could > chime in on that one. > > I did spend time upgrading my 5.3 project to 5.5.0, because it looked so > promising. But I encountered several critical bugs which meant that large > chunks of Guvnor functionality just didn't work. I fell back to 5.3.0 again. > > I'm really hoping to see 5.5.1 before too long, but I think that it has been > "a couple of weeks away" for the past 6 months, so I'm not holding my breath. > :) > > Given the extent of change in 6, I wouldn't recommend going anywhere near it > unless you're just tinkering with it in your own time to see where things are > going. I'm doing that myself at the moment, but it's hard work given the lack > of documentation or books. I suspect that we'll be hit by a big wave of books > on it before long! > > So I guess that if I was starting a new project for a client, I would > probably go with 5.4.0.Final. > > Steve > > > On 30 Jul 2013, at 15:18, schenka7 wrote: > >> Thank you Steve, you are right. It was a bug in the 5.5.0.Final. >> After I switched to 5.4.0.Final it started to work. >> >> I was suspecting that the newer version is the one with the most bug fixes. >> Apparently I was wrong. >> Which version of Drools would you recommend? >> >> >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/NullPointerException-when-updating-a-fact-tp4025181p4025217.html >> Sent from the Drools: User forum 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 > ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
