Re: [rules-users] facing problem in KnowledgeAgent
Thanks Manstis, have some repository issue, now it is running fine ... thank you very much for your help -- View this message in context: http://drools.46999.n3.nabble.com/facing-problem-in-KnowledgeAgent-tp4023368p4023429.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] Importing Rules as Object into KnowledgeBuilder
Hello everyone, is there a way to import Rules as Objects into the Knowledgebase? So far I've seen, Drools supports only Bytearray, Files and InputStream as Rule Resources. Greetings Bojan ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Importing Rules as Object into KnowledgeBuilder
On 19/04/2013, Bojan Janisch wrote: > Hello everyone, > > is there a way to import Rules as Objects java.lang.Object? Anything is an Object. You can add rules in a KnowledgePackage compiled earlier and serialized. -W > into the Knowledgebase? So far > I've seen, Drools supports only Bytearray, Files and InputStream as Rule > Resources. > > Greetings > Bojan > ___ > 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] Importing Rules as Object into KnowledgeBuilder
Thx for the fast reply Wolfgang, but it is not very helpful. Maybe I should have asked another way to get it clearer. Is there a way in Drools to represent a rule in another way than file, string, bytearray or even a compiled form? For example: I want to create a syntaxtree for rules, but I don't know how to import the tree (which simple represents a specific rule) into the KnowledgeBuilder. So is there a way how to import this object into the Builder or (if it is not possible yet) which Interface do I have to use, to write an API between the Tree and the KnowledgeBuilder? Greetings Bojan - Ursprüngliche Mail - Von: "Wolfgang Laun" An: "Rules Users List" Gesendet: Freitag, 19. April 2013 10:49:15 Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder On 19/04/2013, Bojan Janisch wrote: > Hello everyone, > > is there a way to import Rules as Objects java.lang.Object? Anything is an Object. You can add rules in a KnowledgePackage compiled earlier and serialized. -W > into the Knowledgebase? So far > I've seen, Drools supports only Bytearray, Files and InputStream as Rule > Resources. > > Greetings > Bojan > ___ > 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] Importing Rules as Object into KnowledgeBuilder
On 19/04/2013, Bojan Janisch wrote: > Thx for the fast reply Wolfgang, > > but it is not very helpful. Maybe I should have asked another way to get it > clearer. Is there a way in Drools to represent a rule in another way than > file, string, bytearray or even a compiled form? For example: I want to > create a syntaxtree for rules, but I don't know how to import the tree > (which simple represents a specific rule) into the KnowledgeBuilder. So is > there a way how to import this object into the Builder or (if it is not > possible yet) which Interface do I have to use, to write an API between the > Tree and the KnowledgeBuilder? This is indeed clearer. - See 4.4.2.6, Rule API, in Drools Introduction and General User Guide. -W > > Greetings > Bojan > > - Ursprüngliche Mail - > Von: "Wolfgang Laun" > An: "Rules Users List" > Gesendet: Freitag, 19. April 2013 10:49:15 > Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder > > On 19/04/2013, Bojan Janisch wrote: >> Hello everyone, >> >> is there a way to import Rules as Objects > > java.lang.Object? Anything is an Object. > > You can add rules in a KnowledgePackage compiled earlier and serialized. > > -W > >> into the Knowledgebase? So far >> I've seen, Drools supports only Bytearray, Files and InputStream as Rule >> Resources. >> >> Greetings >> Bojan >> ___ >> 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] Fetch Packages using REST api --> KnowledgeBuilder
Hi,
Using the following code, I can fetch the packages from Guvnor using Rest
API (source) but How can I next create a KnowledgeBuilder based on the
source of Packages retrieved ?
My idea is to use ResourceFactory.
// Fetch Packages from Guvnor
URL url = new URL("
http://127.0.0.1:8080/guvnor.war/rest/packages/mortgages/source";);
HttpURLConnection connection = (HttpURLConnection)
url.openConnection();
connection.setRequestProperty("Authorization",
"Basic " + new
Base64().encodeToString(("admin:admin".getBytes(;
connection.setRequestMethod("GET");
connection.setRequestProperty("Accept", MediaType.WILDCARD);
connection.connect();
System.out.println("ResponseCode: " + connection.getResponseCode());
System.out.println("MediaType: " + connection.getContentType());
String packages = IOUtils.toString(connection.getInputStream());
InputStream is = connection.getInputStream();
Regards,
--
Charles Moulliard
Apache Committer / Sr. Enterprise Architect (RedHat)
Twitter : @cmoulliard | Blog : http://cmoulliard.blogspot.com
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Importing Rules as Object into KnowledgeBuilder
Thanks Wolfgang, this Information is indeed useful (btw. I found the API under section 4.5.2.6, maybe there are different versions on the net, I didn't found a user guide where you section matches the topic), but it is a bit thin. Could you explain the use of the API or do you know a more detailed documentation about this topic? Greetings Bojan - Ursprüngliche Mail - Von: "Wolfgang Laun" An: "Rules Users List" Gesendet: Freitag, 19. April 2013 11:17:28 Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder On 19/04/2013, Bojan Janisch wrote: > Thx for the fast reply Wolfgang, > > but it is not very helpful. Maybe I should have asked another way to get it > clearer. Is there a way in Drools to represent a rule in another way than > file, string, bytearray or even a compiled form? For example: I want to > create a syntaxtree for rules, but I don't know how to import the tree > (which simple represents a specific rule) into the KnowledgeBuilder. So is > there a way how to import this object into the Builder or (if it is not > possible yet) which Interface do I have to use, to write an API between the > Tree and the KnowledgeBuilder? This is indeed clearer. - See 4.4.2.6, Rule API, in Drools Introduction and General User Guide. -W > > Greetings > Bojan > > - Ursprüngliche Mail - > Von: "Wolfgang Laun" > An: "Rules Users List" > Gesendet: Freitag, 19. April 2013 10:49:15 > Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder > > On 19/04/2013, Bojan Janisch wrote: >> Hello everyone, >> >> is there a way to import Rules as Objects > > java.lang.Object? Anything is an Object. > > You can add rules in a KnowledgePackage compiled earlier and serialized. > > -W > >> into the Knowledgebase? So far >> I've seen, Drools supports only Bytearray, Files and InputStream as Rule >> Resources. >> >> Greetings >> Bojan >> ___ >> 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] Importing Rules as Object into KnowledgeBuilder
4.4.2.6 is from 5.5.0 Final. This is not part of the "stable" API Documentation: read the source files. -W On 19/04/2013, Bojan Janisch wrote: > Thanks Wolfgang, > > this Information is indeed useful (btw. I found the API under section > 4.5.2.6, maybe there are different versions on the net, I didn't found a > user guide where you section matches the topic), but it is a bit thin. Could > you explain the use of the API or do you know a more detailed documentation > about this topic? > > Greetings > Bojan > > - Ursprüngliche Mail - > Von: "Wolfgang Laun" > An: "Rules Users List" > Gesendet: Freitag, 19. April 2013 11:17:28 > Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder > > On 19/04/2013, Bojan Janisch wrote: >> Thx for the fast reply Wolfgang, >> >> but it is not very helpful. Maybe I should have asked another way to get >> it >> clearer. Is there a way in Drools to represent a rule in another way than >> file, string, bytearray or even a compiled form? For example: I want to >> create a syntaxtree for rules, but I don't know how to import the tree >> (which simple represents a specific rule) into the KnowledgeBuilder. So is >> there a way how to import this object into the Builder or (if it is not >> possible yet) which Interface do I have to use, to write an API between >> the >> Tree and the KnowledgeBuilder? > > This is indeed clearer. - See 4.4.2.6, Rule API, in Drools > Introduction and General User Guide. > -W > >> >> Greetings >> Bojan >> >> - Ursprüngliche Mail - >> Von: "Wolfgang Laun" >> An: "Rules Users List" >> Gesendet: Freitag, 19. April 2013 10:49:15 >> Betreff: Re: [rules-users] Importing Rules as Object into KnowledgeBuilder >> >> On 19/04/2013, Bojan Janisch wrote: >>> Hello everyone, >>> >>> is there a way to import Rules as Objects >> >> java.lang.Object? Anything is an Object. >> >> You can add rules in a KnowledgePackage compiled earlier and serialized. >> >> -W >> >>> into the Knowledgebase? So far >>> I've seen, Drools supports only Bytearray, Files and InputStream as Rule >>> Resources. >>> >>> Greetings >>> Bojan >>> ___ >>> 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Util Method to split "String" content containing declare/end, rule/end, ...
Hi, Is there a util method in drools / kie project to split content of a package that we retrieve using REST from Guvnor ? package mortgages // BEGIN declare LoanApplication amount: Integer approved: Boolean deposit: Integer approvedRate: Integer lengthYears: Integer explanation: String insuranceCost: Integer end // SPLIT END HERE ... rule "CheckBoxDslRule" dialect "mvel" when then end Regards, -- Charles Moulliard Apache Committer / Sr. Enterprise Architect (RedHat) Twitter : @cmoulliard | Blog : http://cmoulliard.blogspot.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Optaplan6.0.0Beta1:chaining-simpleScore OK, DRL Score corruption
Hi Geoffrey - thanks for the prompt reply. Installed the latest OptaPlanner snapshot but did not resolve the error - no change. I have played around and made some incremental improvements and although I can still replicate the error I described earlier the single constraint match error appears easier to debug with this test data. SimpleScore still works fine and comes up with best answer SOFT -2. DRL score corruption (only 1 rule) occurs in local search - gets through FIRST_FIT heuristics OK. I am still using 4 Plan entities,1 equipment(anchor) to schedule. Equip idNo:44 fryer1 Plan idNo:58 T1 fryer fry chips duration : 3 stand: 1 Plan idNo:61 T1 fryer fry snitzel duration: 7 stand: 2 Plan idNo:64 T2 fryer fry chips duration : 3 stand: 1 Plan idNo:67 T2 fryer fry snitzel duration: 7 stand: 2 Table idNo:41 T1 Table idNo:42 T2 Exception in thread "main" java.lang.IllegalStateException: Score corruption: the workingScore (0hard/0medium/-8soft) is not the uncorruptedScore (0hard/0medium/-12soft): The corrupted scoreDirector has no ConstraintMatch(s) which are in excess. The corrupted scoreDirector has 1 ConstraintMatch(s) which are missing: com.umple.solver/standtime vs maxendtime/level2/[org.drools.core.reteoo.InitialFactImpl@4dde85f0, [Table-41], fryer1 44 T1POS:4 Plan: id 58 fry chips, fryer1 44 T1POS:2 Plan: id 61 fry snitzel]=-4 rule "standtime vs maxendtime" salience 20 when not Plan(previousItemTaskorEquip== null) // forces all plans to be initialised $table : Table(id!=null,$tableName : name) $latestplan : Plan(previousItemTaskorEquip!= null,tableName ==$tableName, $maxend : getEquipEndTime(),$maxid : id,$maxstandtime : taskSeqStandTime ) // NB working - selects correct latestplan - strange not all the latestplans used in heuristics - but are used in local search not Plan(previousItemTaskorEquip != null,tableName ==$tableName,getEquipEndTime() > $maxend) // check all plans vs latestplan $plan : Plan(previousItemTaskorEquip!= null,id != null,equip!=null, tableName ==$tableName,getEquipEndTime()<$maxend,id != $maxid, $equip :equip,$endtime: getEquipEndTime(),$standtime : taskSeqStandTime,$id : id) eval ($endtime+$standtime-$maxend<0) then scoreHolder.addSoftConstraintMatch(kcontext, $endtime+$standtime-$maxend); end The part of xml config file which is most likely relevant: 6 2000 If the Rule looks OK, I will manually step through the trace as it is doable but am not sure how to do so or what to look for. Thanks Paul -- View this message in context: http://drools.46999.n3.nabble.com/Optaplan6-0-0Beta1-chaining-simpleScore-OK-DRL-Score-corruption-tp4023365p4023454.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] Optaplan6.0.0Beta1:chaining-simpleScore OK, DRL Score corruption
Ok, this is starting to look like a genuine bug in drools/optaplanner. Would it be possible to get a reproducer of this to me? Easy way: Zip up (part of) your project, attach it to jira issue for optaplanner http://issues.jboss.org/browse/PLANNER and include detailed instructions how to reproduce it (e.g. which main(String[]) to run, which working dir, ...). Try out your own instructions first pls :) Preferred way: Create a public unit test to reproduce it (if possible). General hints: The smaller the dataset to reproduce, the better. The less steps/moves to reproduce, the better. The less rules active to reproduce, the better. I 'll isolate the bug from that reproducer, so Mario can fix it. On 19-04-13 15:27, Paul T wrote: > Hi Geoffrey - thanks for the prompt reply. > > Installed the latest OptaPlanner snapshot but did not resolve the error - no > change. > I have played around and made some incremental improvements and although I > can still replicate the error I described earlier the single constraint > match error appears easier to debug with this test data. > > SimpleScore still works fine and comes up with best answer SOFT -2. DRL > score corruption (only 1 rule) occurs in local search - gets through > FIRST_FIT heuristics OK. > I am still using 4 Plan entities,1 equipment(anchor) to schedule. > Equip idNo:44 fryer1 > Plan idNo:58 T1 fryer fry chips duration : 3 stand: 1 > Plan idNo:61 T1 fryer fry snitzel duration: 7 stand: 2 > Plan idNo:64 T2 fryer fry chips duration : 3 stand: 1 > Plan idNo:67 T2 fryer fry snitzel duration: 7 stand: 2 > Table idNo:41 T1 > Table idNo:42 T2 > > > Exception in thread "main" java.lang.IllegalStateException: Score > corruption: the workingScore (0hard/0medium/-8soft) is not the > uncorruptedScore (0hard/0medium/-12soft): >The corrupted scoreDirector has no ConstraintMatch(s) which are in excess. >The corrupted scoreDirector has 1 ConstraintMatch(s) which are missing: > com.umple.solver/standtime vs > maxendtime/level2/[org.drools.core.reteoo.InitialFactImpl@4dde85f0, > [Table-41], > fryer1 44 T1POS:4 Plan: id 58 fry chips, > fryer1 44 T1POS:2 Plan: id 61 fry snitzel]=-4 > > rule "standtime vs maxendtime" > salience 20 > when > not Plan(previousItemTaskorEquip== null) > // forces all plans to be > initialised > $table : Table(id!=null,$tableName : name) > > $latestplan : Plan(previousItemTaskorEquip!= null,tableName > ==$tableName, > $maxend : getEquipEndTime(),$maxid : > id,$maxstandtime : > taskSeqStandTime > ) > > // NB working - selects correct latestplan - strange not all the > latestplans used in heuristics - but are used in local search > > not Plan(previousItemTaskorEquip != null,tableName > ==$tableName,getEquipEndTime() > $maxend) > > // check all plans vs latestplan > $plan : Plan(previousItemTaskorEquip!= null,id != > null,equip!=null, > tableName > ==$tableName,getEquipEndTime()<$maxend,id != $maxid, > $equip :equip,$endtime: > getEquipEndTime(),$standtime : > taskSeqStandTime,$id : id) > > eval ($endtime+$standtime-$maxend<0) > > then > scoreHolder.addSoftConstraintMatch(kcontext, > $endtime+$standtime-$maxend); > end > > The part of xml config file which is most likely relevant: > > > > > > > > >6 > > >2000 > > > > If the Rule looks OK, I will manually step through the trace as it is doable > but am not sure how to do so or what to look for. > > Thanks Paul > > > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Optaplan6-0-0Beta1-chaining-simpleScore-OK-DRL-Score-corruption-tp4023365p4023454.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] Error deploying Guvnor 6.0.0.Beta1 on Tomcat 7
I was excited to try out Guvnor 6. Downloaded the Beta1 and tried deploying on Tomcat 7.0.32. It deployed fine, but when I access the URL, I get the trace below. Anybody able to deploy on Tomcat 7? org.jboss.errai.bus.client.api.base.MessageDeliveryFailure: error invoking endpoint at org.jboss.errai.bus.server.io.ConversationalEndpointCallback.callback(ConversationalEndpointCallback.java:132) at org.jboss.errai.bus.server.io.RemoteServiceCallback.callback(RemoteServiceCallback.java:54) at org.jboss.errai.cdi.server.CDIExtensionPoints$3.callback(CDIExtensionPoints.java:512) at org.jboss.errai.bus.client.framework.DeliveryPlan.deliver(DeliveryPlan.java:43) ... Caused by: java.lang.NullPointerException at org.uberfire.backend.server.UserServicesImpl.buildPath(UserServicesImpl.java:71) at org.uberfire.backend.server.UserServicesImpl$Proxy$_$$_WeldClientProxy.buildPath(UserServicesImpl$Proxy$_$$_We at org.uberfire.backend.server.WorkbenchServicesImpl.getPathToDefaultEditors(WorkbenchServicesImpl.java:105) at org.uberfire.backend.server.WorkbenchServicesImpl.loadDefaultEditorsMap(WorkbenchServicesImpl.java:76) at org.uberfire.backend.server.WorkbenchServicesImpl$Proxy$_$$_WeldClientProxy.loadDefaultEditorsMap(WorkbenchSer 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 org.jboss.errai.bus.server.io.ConversationalEndpointCallback.callback(ConversationalEndpointCallback.java:114) ... 29 more *** Message delivery failure *** Bus: org.jboss.errai.bus.server.ServerMessageBusImpl@134137c Message: CommandType=loadDefaultEditorsMap:, ErrorTo=org.uberfire.client.workbench.services.WorkbenchServices:RPC.loadDef errorMessage: Error calling remote service: org.uberfire.client.workbench.services.WorkbenchServices:RPC exception: org.jboss.errai.bus.client.api.base.MessageDeliveryFailure: error invoking endpoint disconnect: false org.jboss.errai.bus.client.api.base.MessageDeliveryFailure: error invoking endpoint at org.jboss.errai.bus.server.io.ConversationalEndpointCallback.callback(ConversationalEndpointCallback.java:132) at org.jboss.errai.bus.server.io.RemoteServiceCallback.callback(RemoteServiceCallback.java:54) at org.jboss.errai.cdi.server.CDIExtensionPoints$3.callback(CDIExtensionPoints.java:512) at org.jboss.errai.bus.client.framework.DeliveryPlan.deliver(DeliveryPlan.java:43) -- View this message in context: http://drools.46999.n3.nabble.com/Error-deploying-Guvnor-6-0-0-Beta1-on-Tomcat-7-tp4023456.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] Optaplan6.0.0Beta1:chaining-simpleScore OK, DRL Score corruption
Hi Geoffrey Again thanks for quick response - I will do so although a public unit test is beyond me as I am no expert in Java or Drools but will provide a simple stripped run example. The 4 entities,1 anchor,1 rule is the simplest crashing example data I have. Thanks Paul -- View this message in context: http://drools.46999.n3.nabble.com/Optaplan6-0-0Beta1-chaining-simpleScore-OK-DRL-Score-corruption-tp4023365p4023457.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] Error adding new rule at Runtime drools 5.4.0.Final
Hi all,
I am using Drools-Fusion v5.4.0.Final. My use case is to add rules
dynamically at runtime which should get automatically updated in the
KnowledgeSession. Rules in my application are defined as DTO. I have
written a toDrl() method which returns a String which essentially is a rule
in drl. I use following code to add it to the already running instance of
rule engine.
*Initialize Rule Engine
*KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
if(kBase != null){
kBase.addKnowledgePackages(kBuilder.getKnowledgePackages());
}
// Populate rules from DB
List alertDefs = getDbRules();
for(AlertDefinitionDto alertDef : alertDefs) {
addRule(alertDef);
}
StatefulKnowledgeSession kSession = kBase.newStatefulKnowledgeSession();
*Add Rule
*try {
rwl.lock();
// Create new rule from AlertDefinitionDto
kBuilder.add(org.drools.io.ResourceFactory.newByteArrayResource(alertDef.toDrl().getBytes()),
org.drools.builder.ResourceType.DRL);
if(kBuilder.hasErrors()) {
kBuilder.undo();
KnowledgeBuilderErrors errs = kBuilder.getErrors();
System.err.print(AlertGenerationServiceImpl.class, "Error
adding rule : "+alertDef.getName());
String errorStr = "";
for (KnowledgeBuilderError error : errs) {
errorStr = errorStr + error.getMessage()+"\\n";
}
System.err.print("Error adding new rule: "+errorStr);
}
} finally {
rwl.unlock();
}
*
*
* *// No errors. Update KnowledgeBase.
try {
Collection kPkgs =
kBuilder.getKnowledgePackages();
kBase.addKnowledgePackages(kPkgs);
} catch (RuntimeException e) {
if(kBase.getRule(RULE_PACKAGE_NAME, alertDef.getName()) !=
null) {
kBuilder.undo();
}
e.printStackStrace();
}
*
*
*Fire Rules
*
**LogMessage logMsg = getLog();*
*
kSession.insert(logMsg);
kSession.fireAllRules();
This code works fine under all conditions for initialization where rules
are fetched from DB and rule engine is initialized.
The code fails to add new rule dynamically, when the rule engine is already
initialized and fired few number of times with LogMessage as fact. The
errors which I am getting are
--
1. For the first time when it fails to add new rule.
--
java.lang.RuntimeException: Null accessor on node: null
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeNode(ConditionAnalyzer.java:229)
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeSingleCondition(ConditionAnalyzer.java:126)
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeCondition(ConditionAnalyzer.java:102)
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeCombinedCondition(ConditionAnalyzer.java:134)
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeCondition(ConditionAnalyzer.java:94)
at
org.drools.rule.constraint.ConditionAnalyzer.analyzeCondition(ConditionAnalyzer.java:73)
at
org.drools.rule.constraint.MvelConditionEvaluator.getAnalyzedCondition(MvelConditionEvaluator.java:78)
at
org.drools.rule.constraint.MvelConstraint.getListenedPropertyMask(MvelConstraint.java:273)
at org.drools.reteoo.AlphaNode.calculateDeclaredMask(AlphaNode.java:372)
at org.drools.reteoo.ObjectSource.initDeclaredMask(ObjectSource.java:151)
at org.drools.reteoo.AlphaNode.(AlphaNode.java:86)
at
org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:323)
at
org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:162)
at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:80)
at
org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:113)
at
org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:71)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:155)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:128)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:956)
at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:627)
at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472)
at
org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
--
2. Everytime after 1st failure.
--
java.lang.NullPointerException
at org.drools.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java
[rules-users] KnowledgeBase in drools 6.0.0.beta1
I am evaluating 6.0.0.beta1 and seem to have issues with the KnowledgeBase. It looks like it is marked with @Deprecated. What is the proper way to build the KnowledgeBase in 6(as the documentation still refers to this way). TIA! -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeBase-in-drools-6-0-0-beta1-tp4023459.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] KnowledgeBase in drools 6.0.0.beta1
The is a complet api change in 6.0. We've moved from a pure api approach, to something convention and configuration based. We've done a number of examples for this, but unfortunately not had time to document them :( https://github.com/droolsjbpm/drools/tree/master/drools-examples-api Mark On 19 Apr 2013, at 16:43, gboro54 wrote: > I am evaluating 6.0.0.beta1 and seem to have issues with the KnowledgeBase. > It looks like it is marked with @Deprecated. What is the proper way to build > the KnowledgeBase in 6(as the documentation still refers to this way). > > TIA! > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/KnowledgeBase-in-drools-6-0-0-beta1-tp4023459.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
Re: [rules-users] KnowledgeBase in drools 6.0.0.beta1
Thanks Mark! I will do my best to reverse engineer what is needed from the examples. Is there a good place to get information on changes to the drools syntax(if any) or additional information on the new algorithms implemented(I know RETE was going bye-bye)? -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeBase-in-drools-6-0-0-beta1-tp4023459p4023461.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] Guvnor 5.5.0.Final with IE and Firefox issues
Do we have existing issues being tracked for "Guided Rule Editor" in Guvnor 5.5.0.Final not working on IE? The same Editor opened fine with Firefox. Also noticed, even though the editor can be opened in Firefox, the "Load Template Data" button in the "rule template" seems not working. There is no visible response after it is clicked. Unfortunately, I can't test this on IE as I could not open the "editor" in the first place. Sean ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor 5.5.0.Final with IE and Firefox issues
Both issues you report have been fixed on the 5.5.x and master branches. There is a JIRA for the template issue but I forget the number. There was a fix provided by a commumity member for the Guided Rule Editor issue on IE. I believe 5.6 will be released soon (but I've heard that for the last month). On 19 Apr 2013 22:03, "Sean Su" wrote: > Do we have existing issues being tracked for "Guided Rule Editor" in > Guvnor 5.5.0.Final not working on IE? The same Editor opened fine with > Firefox. > > Also noticed, even though the editor can be opened in Firefox, the "Load > Template Data" button in the "rule template" seems not working. There is no > visible response after it is clicked. > > Unfortunately, I can't test this on IE as I could not open the "editor" in > the first place. > > 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
Re: [rules-users] drools queries: strange dependency
I created a test case which shows a combination of traits+BC http://pastebin.com/Wrq6Hj5L it's pending a tiny but critical bug fix in core, so it won't be "officially" available until early next week. What essentially happens is: - dynamic traits are used to "inject interfaces" to a class - it's stronger than simply storing the class literal in a field (which it does anyway), because it now allows to use the object through the newly added interface. I am working on a way to derive the interfaces - and some classification rules - directly from an ontology - BC is used to resolve the transitive queries. Consider that queries are "LHS" elements, so they are evaluated as tuples are being propagated. If you run the example with the string "Como", it will look for a ** Country ** that the place called "Como" is also in (transitively) The last pattern in the rule is redundant - for test purpose only - and is remarking that the returned Country is actually Italy :) Best Davide On 04/15/2013 09:45 PM, Upali Kohomban wrote: > hi Davide, > > Your summary is quite accurate about my case. > > Thanks for the pointer, I will look in to hybrid chaining once I do a > little investigation on why exactly the original problem occurred. I'm > still having little issues with the 5.5.1 source compilation (for > which your help worked flawlessly to get the source working, but there > were test fails during the compilation. I will try myself to fix them > before asking questions on that). > > As i said, the bigger problem is with the rules that are transitive in > nature. Let's say there is a is_in rule which is used to derive > spacial relationships. For instance, a concrete example > > is_in (uni_of_michigan, ann_arbor). > is_in(ann_arbor, MI). > is_in(MI, USA). > is_in(A, C) <- is_in(A, B), is_in(B, C). > > I want to deduce (in general course of reasoning) such stuff as > is_in(uni_of_michigan, USA), but if I do it in the regular drools way, > I'd end up with a load of unnecessary deductions. This is the biggest > problem I have. If you want a more involved concrete example, say I > define (for the sake of simplicity) > > romantic(A) <- scenic(A), secluded(A). > scenic(A) <- next_to(A, B), scenic_artefact(B). > scenic_artefact(B) <- lake(B) or waterfall(B) or ... and so on > secluded(A) <- [ situated further than N km from the nearest city ] > > Now this last rule is where logic gives way to POJO and databases. It > seems to me that this is the most sensible thing to do. Also, this is > as far as I want to go at the moment. (Having known the non-boolean > reasoning ability of drools from your mail, I can think of many ways I > want to use it :) ) > > I looked into your profile and saw that you have a background on the > ontologies. Especially what you have mentioned under Drools - "Open > Source Knowledge Integration and Reasoning Platform" in your > university profile seems quite intersting and seems to be exactly the > things I might be needing in the near future. I was thinking that I'll > have to implement non-boolean reasoning using some fuzzy toolkit, if > it becomes available with drools I'll be really happy to give it a try. > > If you have any material to share for further reading on your drools > research, I'd be grateful. > > Thanks, > Upali > > > On 15/04/2013 03:10, Davide Sottara wrote: >> Correct me if I'm wrong, I would summarize your requirements as follows: >> - you need some "A-box" reasoning, but you are fine with a rule-based >> approach >> - the object-oriented integration Drools provides is quite convenient >> - you have large data sets for which an opportunistic, >> "query-oriented" approach >> would work better rather than a fully generative "forward chaining" >> approach >> >> Drools "hybrid-chaining" approach could be very useful here - I'm not >> sure how >> well documented it is, and how you are planning to use it, but it >> would be interesting >> to see one of your rules - even "stripped" of the details you don't >> want to show - >> to discuss the behaviour of the engine and its implications. >> >> I had a use case apparently very similar to yours some time ago.. I'm >> working even >> now on some experimental forms of rule/object/ontology integration. >> The "trait" >> feature might be an alternative to the explicit addition of classes >> to objects .. it was >> enhanced a few days ago to support updates and modifications. >> If you have an ontology to begin with, you might also be interested >> in the ontology -> class >> conversion tool I'm working on even now >> >> Davide > > > > > ___ > 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] Fusion: Null pointer exception when using sliding windows
I have identified the problem and submitted a tentative patch:
I guess it will be discussed and (hopefully) integrated early next week
If you want, you can try and apply it yourself
https://github.com/sotty/drools/commit/c949ef0195ad174fadae6369985fa17d46c54834
On 04/18/2013 12:28 PM, burmanator wrote:
> The missing ":" was just a typo in my transcribing. I'm running my code in a
> virtual machine so I couldn't copy and paste and have to hand type
> everything out. I go through and check the knowledge builder for errors by
> checking the size of KnowledgeBuilder.getErrors() and if the size is greater
> then 0, display the error. However nothing comes up.
>
> I'm running Drools 5.5.0.Final that I just downloaded recently.
>
> the DRL I'm using consists of:
>
> package testing2;
>
> import test2.*;
> import java.util.*;
> import org.drools.*;
>
> declare Foo
> @role(event)
> @timestamp(Start)
> @duration(Duration)
> end
>
> rule test
> when
> $primary : Foo($name : Name) over window:length(24)
> $prev : ArrayList(size<1) from collect ( Foo(Name == $name, this before
> $primary))
> then
> System.out.println("Found name: " + $name);
> end
>
>
> The error in the console that gets spit back out is:
>
> java.land.NullPointerException
>at org.drools.core.util.index.RightTupleIndexHashTable.remove
> (RightTupleIndexHashTable.java : 363)
>at org.drools.reteoo.AccumulateNode.retractRightTuple
> (AccumulateNode.java : 318)
>at org.drools.rule.SlidingLengthWindow.assertFact
> (SlidingLengthWindow.java : 116)
>at org.drools.rule.BehaviorManager.assertFact (BehaviorManager.java : 94)
>at org.drools.reteoo.WindowNode.assertObject (WindowNode.java : 167)
>at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject
> (CompositeObjectSinkAdapter.java : 497)
>at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject
> (CompositeObjectSinkAdapter.java : 382)
>at org.drools.reteoo.ObjectTypeNode.assertObject (ObjectTypeNode.java :
> 235)
>at org.drools.reteoo.EntryPointNode.assertObject (EntryPointNode.java :
> 240)
>at org.drools.common.NamedEntryPoint.insert (NamedEntryPoint.java : 350)
>at org.drools.common.NamedEntryPoint.insert (NamedEntryPoint.java : 311)
>at org.drools.common.AbstractWorkingMemory.insert
> (AbstractWorkingMemory.java : 903)
>at org.drools.common.AbstractWorkingMemory.insert
> (AbstractWorkingMemory.java : 847)
>at
> org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java
> : 269)
>at test2.Engine2.main (ngine2.java : 78)
>
> that last line points to my main class where I add the events into the
> knowledge session.
>
> When I change "over window:length(24)" to "over window:time(21d)" (my sample
> data is about 22 days old now) I get the error:
>
> org.drools.RuntimeDroolsException : Unexpected exception executing action
> org.drools.rule.SlidingTimeWIndow$BehaviorExpireWMAction@491cc367
>at org.drools.common.AbstractWorkingMemory.executeQueuedActions
> (AbstractWorkingMemory.java : 995)
>at org.drools.common.NamedEntryPoint.insert (NamedEntryPoint.java : 362)
>at org.drools.common.NamedEntryPoint.insert (NamedEntryPoint.jaba : 311)
>at org.drools.common.AbstractWorkingMemory.insert
> (AbstractWorkingMemory.java : 903)
>at org.drools.common.AbstractWorkingMemory.insert
> (AbstractWorkingMemory.java : 847)
>at org.drools.impl.StatefulKnowledgeSessionImpl.insert
> (StatefulKnowledgeSessionImpl.java : 269)
>at test2.Engine2.main (Engine2.java : 78)
> Caused by: java.lang.NullPointerException
>at
> org.drools.core.util.index.RightTupleIndexHashTable.remove(RightTupleIndexHashTable.java
> : 363)
>at org.drools.reteoo.AccumulateNode.retractRightTuple
> (AccumulateNode.java : 318)
>at org.drools.rule.SlidingTimeWindow.expireFacts(SlidingTimeWindow.java :
> 189)
>at org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction.execute
> (SlidingTimeWindow.java : 471)
>at org.drools.common.AbstractWorkingMemory.executeQueuedActions
> (AbstractWorkingMemory.java : 993)
> ... 6 more
>
>
> When I get rid of any over window statements, everything runs just fine.
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/Fusion-Null-pointer-exception-when-using-sliding-windows-tp4023410p4023426.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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Re: [rules-users] NullPointerException when using bean property which happens to be a Enum name
Case has been created: https://issues.jboss.org/browse/GUVNOR-2007 thanks Sean On Thu, Apr 18, 2013 at 2:54 PM, Michael Anstis wrote: > Please raise a JIRA for Guvnor and attach your model JAR. I will take a > look. > On 18 Apr 2013 18:50, "Sean Su" wrote: > >> yes. you are correct. >> >> >> On Thu, Apr 18, 2013 at 1:28 PM, Stephen Masters >> wrote: >> >>> Shouldn't that have been: >>> >>> $foo : Foo (myEnum == MyEnum.someItem) >>> >>> Your field is presumably "myEnum", whereas the class is "MyEnum". >>> >>> >>> On 18 Apr 2013, at 18:19, Sean Su wrote: >>> >>> $foo : Foo (MyEnum == MyEnum.someItem) >>> >>> >>> >>> ___ >>> 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] Fusion: Null pointer exception when using sliding windows
On 18/04/2013, burmanator wrote:
>
> rule test
> when
> $primary : Foo($name : Name) over window:length(24)
> $prev : ArrayList(size<1) from collect ( Foo(Name == $name, this before
> $primary))
> then
> System.out.println("Found name: " + $name);
> end
>
Apart from the sliding window and the manifest bug: I just wonder why
nobody has pointed out that the rule can be rewritten as:
rule test
when
$primary : Foo($name : Name) over window:length(24)
not Foo(Name == $name, this before $primary)
then
System.out.println("Found name: " + $name);
end
There is no other way the list size can be less than 1 :-)
-W
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Re: [rules-users] Fusion: Null pointer exception when using sliding windows
Wolfgang,
I was expecting you to do that :)
Btw, I don't know the requirements, but I wonder if some window
filter or temporal horizon (i.e. before[x,y]) shouldn't be applied to
the second pattern too... the use of a plain "before" requires to
keep all events in the WM since the beginning of time
On 04/19/2013 08:48 PM, Wolfgang Laun wrote:
> On 18/04/2013, burmanator wrote:
>> rule test
>> when
>> $primary : Foo($name : Name) over window:length(24)
>> $prev : ArrayList(size<1) from collect ( Foo(Name == $name, this before
>> $primary))
>> then
>> System.out.println("Found name: " + $name);
>> end
>>
> Apart from the sliding window and the manifest bug: I just wonder why
> nobody has pointed out that the rule can be rewritten as:
>
> rule test
> when
> $primary : Foo($name : Name) over window:length(24)
> not Foo(Name == $name, this before $primary)
> then
>System.out.println("Found name: " + $name);
> end
>
> There is no other way the list size can be less than 1 :-)
> -W
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>
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