Re: [rules-users] rules-users Digest, Vol 80, Issue 33 - help on drools guvnor
by pritha.ghosh＠wipro.com
The same code runs fine with
urlResource = (org.drools.io.impl.UrlResource) org.drools.io.ResourceFactory
.newUrlResource(new java.net.URL("http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/OBSP..."));
And resourse type "DRL"
Please find below the source code of the rule
rule "EmployeeMapRule"
no-loop true
enabled true
dialect "mvel"
when
EmployeeMap : EmployeeMap( employeeID : EmployeeID != null , employeeName : EmployeeName != null , employeeCountry : EmployeeCountry in ( "INDIA", "Australia", "USA" ) )
then
EmployeeMap.setEmployeeName( employeeName+" Success" );
EmployeeMap.setEmployeeCountry( employeeCountry );
EmployeeMap.setEmployeeID( employeeID );
update( EmployeeMap );
end
I have written the rule in guvnor.
Drools version 5.5
Please find below the source code for my model employeemap
declare EmployeeMap
EmployeeName: String
EmployeeCountry: String
EmployeeID: Integer
end
I have attached the pojo class I am using to fire the rule
Thanks,
Pritha
-----Original Message-----
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Sent: Wednesday, July 17, 2013 6:50 PM
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Subject: rules-users Digest, Vol 80, Issue 33
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Today's Topics:
1. Re: help on drools guvnor (Stephen Masters)
----------------------------------------------------------------------
Message: 1
Date: Wed, 17 Jul 2013 14:19:21 +0100
From: Stephen Masters <stephen.masters(a)me.com>
Subject: Re: [rules-users] help on drools guvnor
To: Rules Users List <rules-users(a)lists.jboss.org>
Message-ID: <93FD4B72-09E1-4AEB-8ACD-CFC3B4BD36A9(a)me.com>
Content-Type: text/plain; charset="us-ascii"
Have you tested that the rules fire when you load them as DRL?
It would probably be worth showing us what EmployeeMap looks like and the rule which you expect to fire if there is an EmployeeMap in working memory.
The Drools version would also be useful.
Steve
On 17 Jul 2013, at 14:04, pritha.ghosh(a)wipro.com wrote:
> Hi,
>
> I am not able to run rules from .pkg resources.
>
> Knowledgesession is getting populated with package and rules inside the packages but when I am firing ksession.fireAllRules(); no rules are getting executed.
>
> Below is my program
>
> final KnowledgeBuilder kbuilder =
> KnowledgeBuilderFactory.newKnowledgeBuilder();
>
> // Use this line if calling rule defined using guvnor package
> org.drools.io.impl.UrlResource urlResource;
> try {
> urlResource = (org.drools.io.impl.UrlResource) org.drools.io.ResourceFactory
> .newUrlResource(new
> java.net.URL("http://localhost:8080/drools-guvnor/org.drools.guvnor.Gu
> vnor/package/OBSPOC/OBSSNAP/OBSPOC_OBSSNAP.pkg"));
>
>
> urlResource.setBasicAuthentication("enabled");
> urlResource.setUsername("admin");
> urlResource.setPassword("admin");
> kbuilder.add(urlResource,ResourceType.PKG);
> }
> catch (MalformedURLException e) {
> System.out.println("malformed URL");
> e.printStackTrace();
> }
> catch (Exception e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> // create the knowledge base
> KnowledgeBase kbase =
> KnowledgeBaseFactory.newKnowledgeBase();
>
>
>
>
> // Check the builder for errors
> if (kbuilder.hasErrors()) {
> System.out.println(kbuilder.getErrors().toString() + "********");
> throw new RuntimeException("Unable to compile the rule file.");
> }else{
> System.out.println(".....Rule File is Read Successfully....");
> }
>
> // get the compiled packages (which are serializable)
> final Collection pkgs = kbuilder
> .getKnowledgePackages();
>
> // add the packages to a knowledgebase (deploy the knowledge packages).
> // final KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
> kbase.addKnowledgePackages(pkgs);
>
>
> final StatefulKnowledgeSession ksession = kbase
>
> .newStatefulKnowledgeSession();
>
> ksession.addEventListener(new DebugAgendaEventListener());
> ksession.addEventListener(new
> DebugWorkingMemoryEventListener());
>
> EmployeeMap employeeMap = new EmployeeMap();
> employeeMap.setEmployeeCountry("INDIA");
> employeeMap.setEmployeeID(1);
> employeeMap.setEmployeeName("USERP");
>
> ksession.insert(employeeMap);
> ksession.fireAllRules();
>
>
> ksession.dispose();
>
>
> Thanks,
> Pritha
> Please do not print this email unless it is absolutely necessary.
>
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>
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>
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> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
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End of rules-users Digest, Vol 80, Issue 33
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10 years, 9 months
help on drools guvnor
by pritha.ghosh＠wipro.com
Hi,
I am not able to run rules from .pkg resources.
Knowledgesession is getting populated with package and rules inside the packages but when I am firing ksession.fireAllRules(); no rules are getting executed.
Below is my program
final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
// Use this line if calling rule defined using guvnor package
org.drools.io.impl.UrlResource urlResource;
try {
urlResource = (org.drools.io.impl.UrlResource) org.drools.io.ResourceFactory
.newUrlResource(new java.net.URL("http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/OBSP..."));
urlResource.setBasicAuthentication("enabled");
urlResource.setUsername("admin");
urlResource.setPassword("admin");
kbuilder.add(urlResource,ResourceType.PKG);
}
catch (MalformedURLException e) {
System.out.println("malformed URL");
e.printStackTrace();
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// create the knowledge base
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
// Check the builder for errors
if (kbuilder.hasErrors()) {
System.out.println(kbuilder.getErrors().toString() + "********");
throw new RuntimeException("Unable to compile the rule file.");
}else{
System.out.println(".....Rule File is Read Successfully....");
}
// get the compiled packages (which are serializable)
final Collection pkgs = kbuilder
.getKnowledgePackages();
// add the packages to a knowledgebase (deploy the knowledge packages).
// final KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(pkgs);
final StatefulKnowledgeSession ksession = kbase
.newStatefulKnowledgeSession();
ksession.addEventListener(new DebugAgendaEventListener());
ksession.addEventListener(new DebugWorkingMemoryEventListener());
EmployeeMap employeeMap = new EmployeeMap();
employeeMap.setEmployeeCountry("INDIA");
employeeMap.setEmployeeID(1);
employeeMap.setEmployeeName("USERP");
ksession.insert(employeeMap);
ksession.fireAllRules();
ksession.dispose();
Thanks,
Pritha
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10 years, 9 months
Deploying Guvnor 5.5.1 in JBoss 7.1.1.Final
by rjr201
Hi,
I've just checked out and successfully compiled:
https://github.com/droolsjbpm/guvnor/tree/5.5.x
I've tried to deploy this in jboss-as-7.1.1.Final but got the following
error:
16:48:14,132 ERROR [org.apache.catalina.core.StandardContext] (MSC service
thread 1-4) Context [/guvnor-webapp-drools-5.5.1-SNAPSHOT] startup failed
due to previous errors: java.lang.IllegalArgumentException: Duplicate
context initialization parameter resteasy.injector.factory
at
org.apache.catalina.core.StandardContext.addParameter(StandardContext.java:2186)
[jbossweb-7.0.13.Final.jar:]
at
org.jboss.as.web.deployment.JBossContextConfig.processWebMetaData(JBossContextConfig.java:261)
[jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at
org.jboss.as.web.deployment.JBossContextConfig.applicationWebConfig(JBossContextConfig.java:169)
[jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:417)
[jbossweb-7.0.13.Final.jar:]
at
org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:182)
[jbossweb-7.0.13.Final.jar:]
at
org.jboss.as.web.deployment.JBossContextConfig.lifecycleEvent(JBossContextConfig.java:162)
[jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:115)
[jbossweb-7.0.13.Final.jar:]
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3790)
[jbossweb-7.0.13.Final.jar:]
at
org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:90)
[jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[rt.jar:1.7.0_13]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[rt.jar:1.7.0_13]
at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_13]
16:48:14,142 ERROR [org.apache.catalina.core.StandardContext] (MSC service
thread 1-4) Context [/guvnor-webapp-drools-5.5.1-SNAPSHOT] startup failed
due to previous errors
16:48:14,149 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4)
MSC00001: Failed to start service
jboss.web.deployment.default-host."/guvnor-webapp-drools-5.5.1-SNAPSHOT":
org.jboss.msc.service.StartException in service
jboss.web.deployment.default-host."/guvnor-webapp-drools-5.5.1-SNAPSHOT":
JBAS018040: Failed to start context
at
org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:95)
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
[jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
[jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[rt.jar:1.7.0_13]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[rt.jar:1.7.0_13]
at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_13]
16:48:14,157 INFO [org.jboss.as] (MSC service thread 1-4) JBAS015951: Admin
console listening on http://127.0.0.1:9990
16:48:14,158 ERROR [org.jboss.as] (MSC service thread 1-4) JBAS015875: JBoss
AS 7.1.1.Final "Brontes" started (with errors) in 13913ms - Started 295 of
374 services (2 services failed or missing dependencies, 76 services are
passive or on-demand)
16:48:14,358 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2)
JBAS015870: Deploy of deployment "guvnor-webapp-drools-5.5.1-SNAPSHOT.war"
was rolled back with failure message {"JBAS014671: Failed services" =>
{"jboss.web.deployment.default-host.\"/guvnor-webapp-drools-5.5.1-SNAPSHOT\""
=> "org.jboss.msc.service.StartException in service
jboss.web.deployment.default-host.\"/guvnor-webapp-drools-5.5.1-SNAPSHOT\":
JBAS018040: Failed to start context"}}
16:48:14,384 INFO [org.jboss.weld.deployer] (MSC service thread 1-3)
JBAS016009: Stopping weld service for deployment
guvnor-webapp-drools-5.5.1-SNAPSHOT.war
16:48:17,110 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1)
JBAS015877: Stopped deployment guvnor-webapp-drools-5.5.1-SNAPSHOT.war in
2745ms
16:48:17,111 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2)
JBAS014774: Service status report
JBAS014777: Services which failed to start: service
jboss.web.deployment.default-host."/guvnor-webapp-drools-5.5.1-SNAPSHOT":
org.jboss.msc.service.StartException in service
jboss.web.deployment.default-host."/guvnor-webapp-drools-5.5.1-SNAPSHOT":
JBAS018040: Failed to start context
16:48:17,113 ERROR [org.jboss.as.server.deployment.scanner]
(DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and
was rolled back. Steps that failed:" => {"Operation step-2" => {"JBAS014671:
Failed services" =>
{"jboss.web.deployment.default-host.\"/guvnor-webapp-drools-5.5.1-SNAPSHOT\""
=> "org.jboss.msc.service.StartException in service
jboss.web.deployment.default-host.\"/guvnor-webapp-drools-5.5.1-SNAPSHOT\":
JBAS018040: Failed to start context"}}}}
Am I doing something wrong? Or has anyone else come across this error?
Any help with this would be gratefully appreciated.
Thanks,
Rich.
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10 years, 9 months
Getting infinite loops even with limitation of fires
by Bojan Janisch
Hello everyone,
Recently I'm using Drools in a multithreaded environment. But after a while I see that Drools is running for endless time even though I gave him with fireAllRules(1000) a limitation to fire only 1000 rules. The occurrence is rule-independent, I've checked multiple times and each time it's another rule which works well if I run it separately.
Could someone check the code of this stack trace? That's a thread dump of my last run.
"ECJ Evaluation Thread 9" daemon prio=10 tid=0x00002b08a4fd9000 nid=0x2f90 runnable [0x00002b08a9a82000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.getEntry(HashMap.java:347)
at java.util.HashMap.containsKey(HashMap.java:335)
at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:244)
at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237)
at org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at defaultpkg.Rule_308_7dd58592a49c4dd1a6fd98dc64c74466DefaultConsequenceInvokerGenerated.evaluate(Unknown Source)
at defaultpkg.Rule_308_7dd58592a49c4dd1a6fd98dc64c74466DefaultConsequenceInvoker.evaluate(Unknown Source)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
- locked <0x000000020865c080> (a org.drools.common.DefaultAgenda)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:679)
at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:234)
at rulevolution.RulEvolution.runDrools(RulEvolution.java:348)
at rulevolution.RulEvolution.evaluate(RulEvolution.java:183)
at ec.simple.SimpleEvaluator.evalPopChunk(SimpleEvaluator.java:259)
at ec.simple.SimpleEvaluator$SimpleEvaluatorThreadCG.run(SimpleEvaluator.java:341)
at ec.util.ThreadPool$PoolThread.run(ThreadPool.java:57)
Locked ownable synchronizers:
- None
Also here the rule and code snipped I'm using to prove that the infinite loop does not come from my code:
//kSession is a StatefulKnowledgeSession
try {
//Limiting the Activation will prevent infinite loops
kSession.fireAllRules(1000);
} catch (Exception e) {
System.out.println("error while processing :: " + e.toString());
System.out.println(rule);
} finally {
kSession.dispose();
}
-------------------------------------------------------------------
rule "308"
no-loop
when
$0:NormalizedNamedEntity(
ct_0:CoveredText,
cp_0:Concept,
label_0:getConcept().getPrefLabel().value,
getConcept().identifierSource.toLowerCase.contains("ops"))
$1:NormalizedNamedEntity(
ct_1:CoveredText,
cp_1:Concept,
label_1:getConcept().getPrefLabel().value,
getConcept().identifierSource.toLowerCase.contains("bodyside"))
then
int start = getStart($0,$1);
int ende = getStop($0,$1);
String attribute = label_0+" "+label_1;
insert(annotate(aJCas, "Operation", 309, attribute, start, ende, "", attribute));
end
I appreciate any help to solve this occurrence.
Greetings
Bojan
10 years, 9 months
Replacing an old function in drl
by Sonata
Hi, I want to replace an outdated function defined in a drl file without
touching that file, is this possible? (in 5.5.0)
The java application part that loads the resources cannot be touched as
well. It is configured to read all the drl files from a predefined folder, I
am only allowed to add-in new drl files.
Here are what I have tried:
1. Create a new drl file with the new function with same package name and
same function name
This works *only* if the new file is loaded after the old file.
As I cannot change how the java application loads the resources, I cannot
guarantee the new file is always loaded after the old one, so I tried the
next method.
2. Create a new drl file with the new function with same function name. Add
a rule with high salience and call
drools.getKnowledgeRuntime().getKnowledgeBase().removeFunction("old_package",
"oldFunc");
Function newFunc =
((org.drools.impl.KnowledgeBaseImpl)drools.getKnowledgeRuntime().getKnowledgeBase()).getRuleBase().getPackage("new_package").getFunctions().get("oldFunc");
// a new implementation with the same name
((org.drools.impl.KnowledgeBaseImpl)drools.getKnowledgeRuntime().getKnowledgeBase()).getRuleBase().getPackage("old_package").addFunction(newFunc);
But this didn't work. When the rules are fired, it complains about the
old_package cannot find the function anymore.
Could anyone from the Drools team provide some help on this?
Thanks a lot!
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10 years, 9 months
VRP with ExamTimeTabling
by saindofora30
Hi
It is possible to use the example of VRP with the example Exam Timetabling??
Explaining better:
I would like the services that were not performed today could be relocated
on another day. That is, the services could be designated in several days
respecting the deadline.
I would like a guide if it is possible to do this and what would be the best
way to implement this idea.
Thank you.
--
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10 years, 9 months
Optaplanner: Shadow Variables vs insertLogical
by jonathan.labin
I noticed the recent introduction of the concept of Shadow Variables in the
Optaplanner. I'm wondering if someone could help me understand the
difference between Shadow Variables and inserting facts with
insertLogical()?
Each are described a little bit in the manual and it seems that there is a
similar use case but I'm not sure I understand the implications of using one
over the other? I see that some of the examples still use insertLogical so
I'm assuming that shadow variables are not a replacement in every case.
To help frame the answer, consider the following toy problem which maps to
my domain fairly well:
Say my problem is creating purchase orders of raw materials for my factory
from various vendors. The input states how many of each raw material I
need. Obviously I would want to minimize cost but I also have no capacity
to store extra raw materials so any extra that I buy will be waste.
Therefore, I'll want to create a list of orders that obtains exactly the
required number of each if possible.
Each vendor offers package deals that include different combinations of raw
materials in different amounts.
There would clearly be other optimizations such as reducing the number of
vendors used but those would likely be secondary to the cost and waste
optimizations.
The domain model for this problem would include a Planning Value for each
individual raw material item as well as one for each package combo offered
by a vendor (essentially anything with a price).
So, for a problem space like this, I'll want rules which count the number of
each raw material type across all of the different packages purchased from
different vendors and make sure it meets the needs of the particular
provided problem.
Currently I am using a rule that fires for each raw material type and counts
the number of units ordered for that type using an accumulator over Planning
Entities. I am currently experiencing score corruption which I believe may
be due to this approach so I am looking to redesign.
Would Shadow Variables or calls to insertLogical() be more
appropriate/efficient for this use?
Thanks in advance,
Jon
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10 years, 9 months
Error when I try to open technical rule asset in Guvnor
by Lance
Some background...
Using Drools v5.3.5.Final and Guvnor v5.3.5.Final
Created numerous packages, some of which contain assets that were promoted
to "global"
Some of the assets in "global" were placed there at the outset
Assets that were placed in "global" at the outset are jar files for domain
models used across multiple packages
Assets that were promoted to "global" are functions that it turned out were
needed in multiple packages
The problem...
For a subset of packages, any attempt to open a 'technical rule asset' in
the Guvnor web interface results in the following pop-up error dialogs:
/Unable to get content assistance for this rule./
*AND*
/Unable to validate package configuration (eg, DSLs, models) for
'shipment.document.validation'.
Suggestion completions may not operate correctly for graphical
editors for this package./
Other possible information of interest, with regards to the packages that
have the problem...
Using JBoss Dev Studio, and its web-dav based interface, I can open the DRL
files and they appear to be okay
If I click on the link to download the source for the package, the resultant
package file appears to contain everything as expected
I am able to validate and compile the package, without error, from within
Guvnor
It should be noted that out of the nine packages I have defined, so far,
only two of the packages exhibit this problem. In all of the other packages,
I am able to manipulate technical rules via the Guvnor web-app.
Summary...
The primary problem is that I cannot use the rule editor within the Guvnor
web-app to manipulate the rules. On the one hand, I'm not too concerned as
JBDS seems to provide an adequate workaround. However, not being able to
open the rules within the Guvnor application does seem to be a bit of a
nuisance.
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10 years, 9 months
