"Cannot find KieModule" with kieServices.newKieContainer() with LATEST or RELEASE instead of explicit version number (eg: 0.0.1)
by Matteo Mortari
Hello,
in the hope this could save time if someone has been experiencing same
issue. Drools 6.0.1.Final
I had message "Cannot find KieModule" with kieServices.newKieContainer()
with LATEST or RELEASE , instead of explicit version number (eg: 0.0.1) on
a application where the KIE module Rule artifact project kjar has been
locally-installed from remote Maven repository, that is the right hand side
of this diagram:
http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html_single/...
Meaning that before launching Application, I performed
mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:get
-Dartifact=com.acme:X:LATEST -DrepoUrl=
http://nexus-hostname/nexus/content/repositories/releases/
Then:
kieServices.newKieContainer() with LATEST,
kieServices.newKieContainer() with RELEASE,
failed with stack trace:
Exception in thread "main" java.lang.RuntimeException: Cannot find
KieModule: com.acme:X:RELEASE
at
org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:86)
at (...)
But kieServices.newKieContainer() with a fixed version, eg.: 0.0.2 did
indeed worked OK, if installed in the local .m2 repository.
To avoid this issue, I found only 3 possible workarounds
1 use mvn maven-dependency-plugin:go-offline but did not work all of the
time
2 manually ensure maven-metadata-local.xml file is generate in local .m2
repository
3 just download manually .jar and .pom of the remote maven repo, and then
install with mvn install:install-file
In this case, of workaround kieServices.newKieContainer() works OK with
all the version LATEST, RELEASE, and fixed version number.
Raise jira DROOLS-419 with more details and example projects, please don't
hate me if was just me missing something or not-Drools issue actually
=P
In my defense I had good intentions saving somebody's else time in case
same strange behavior, which is really strange because to me it worked only
with explicit fixed version number, and that was really bizarre ;)
Hope this helps,
Ciao
MM
11 years, 9 months
Drools 6 support for changeset
by wtang
I have a requirement in which when a rule is changed, the change needs to be
reflected immediately without retarting the system.
In Drools 5.x we can use the changeset.xml with the knowlegde agent. Now in
Drool 6.0 we have Kie API.
1) does Kie support changeset.xml?
2) Upper management don't want to use kie, they want to use jsr94. Does
jsr94 support changeset.xml?
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11 years, 9 months
Drools Planner: what if possible values of a PlanningVariable are dependent of another one?
by Willem van Asperen
Hi All,
I have a PlanningEntity that has several planning variables, say A and
B. Now, if A is O then B can be X or Y and when A is P then B can be Y or Z.
I see two routes:
* create a solution property that generates X, Y and Z as alternatives
for B and rely on the score rules to dismiss improper values,
depending on the value of A
* create an entity property that only generates the possible values
for B (i.e. X,Y for A=O and Y,Z for A=P)
What is the best route?
(Alternatively I do not use the constructionHeuristic and just start of
my solution with a randomly (but correct) generated solution)
Regards,
Willem
11 years, 10 months
Spring, KnowledgeAgent, and Guvnor
by paulB
I'm having a problem connecting my KnowledgeAgent to a package in Guvnor.
I'm using Spring to instantiate the KnowledgeAgent. The agent initializes
perfectly well when I point to a local change-set that in-turn points to a
local rule. However, even though I have the same rule in a package in
Guvnor, the KnowledgeAgent fails with the following exception when I point
to the package's change-set in Guvnor:
The code at KnowledgeBaseImpl.java:148 is (using 5.3.0.Final):
Here is the simple rule in the Guvnor as returned by the URL for the package
source URL:
Here is the local change-set definition. The line that is commented is the
failing resource, whereas the local file resource works fine:
Guvnor is residing on a Tomcat server.
I could not find anything related to this on the forum. Thank you for any
hints.
-Paul
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11 years, 10 months
Cannot find KieModule: org.default:artifact:1.0.0-SNAPSHOT
by waynemetcalfe
I've seen this problem a few places while searching for a solution. Is it
possible to overcome this issue?
Drools version:6.0.0.Final
Java version: 1.7.0_45
Code snippet:
...
final KieServices ks = KieServices.Factory.get();
final KieRepository kr = ks.getRepository();
final KieFileSystem kfs = ks.newKieFileSystem();
//ruleScript is simply a string containing the rules
kfs.write("src/main/resources/com/company/test/rules/rules.drl",
ruleScript);
KieBuilder kb = ks.newKieBuilder(kfs);
kb.buildAll();
if (kb.getResults().hasMessages(Level.ERROR)){
configuration.getLog().error("\nSomething wrong here!\n\n");
}
final KieContainer kContainer =
ks.newKieContainer(kr.getDefaultReleaseId());
session = kContainer.newKieSession();
Exception:
java.lang.RuntimeException: Cannot find KieModule:
org.default:artifact:1.0.0-SNAPSHOT
at
org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:86)
Thanks
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11 years, 10 months
How to feed camel-server with kmodules using kie-ci?
by wogo
Hi,
I am trying to integrate drools-camel-server-example and kie-ci (6.0.1)
plugin.
My goal is to load modules from maven (built/deployed from kie-wb).
Maven configuration looks fine, as MavenSettings are initialized while
debugging (I see my repos).
I do everything locally to make things simpler.
Standalone code (from Eclipse) works fine with kie-cie - I execute
"Underage" rule from mortgages example.
I have built server with all kie-cie dependencies, however none of kmodules
deployed in Maven is loaded.
What am I missing? Is there anything special required in
knowledge-services.xml (I have used a default one provided originally in
.war)?
Do you have an example of mortgages obtained via camel-server?
Regards,
Wojciech
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11 years, 11 months
named query TasksAssignedAsPotentialOwner doesn't work with MySql db
by Frank Knoll
Hi,
When I add a task (having two potential owners) by calling the method
addTask followed by calling the method getTasksAssignedAsPotentialOwner of
org.jbpm.task.service.TaskClient I expect to receive a list of TaskSummaries
containing at least the previously added task. But I actually get an empty
list!
Here is my setup and possible solution:
I am using the trunk version of
./jbpm-human-task/src/main/resources/META-INF/orm.xml and a MYSQL database.
When calling addTask the Task table will be populated with a NULL
actualOwner_id.
The named query TasksAssignedAsPotentialOwner
"select new org.jbpm.task.query.TaskSummary(...t.taskData.actualOwner...)
from ... left join t.taskData.actualOwner ..." of orm.xml generates SQL
consisting of an inner join "inner join OrganizationalEntity user7_ on
task0_.actualOwner_id=user7_.id" which doesn't take the NULL actualOwner_id
correctly into account.
When I replace the named query TasksAssignedAsPotentialOwner with
"select new org.jbpm.task.query.TaskSummary(...actualOwner...) from ...left
join t.taskData.actualOwner as actualOwner ...", then the generated SQL
consists of an "left outer join OrganizationalEntity user2_ on
task0_.actualOwner_id=user2_.id" which takes the NULL actualOwner_id
correctly into account. So I get a List of TaskSummaries containing the
added task.
Is this a correct fix?
Cheers, Frank
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11 years, 11 months
NullPointerException with kie-spring 6.0.1 and Spring 4.0
by Andrew Berman
Hello,
I'm trying to play around with Drool 6.0.1 integration with Spring (I'm
using spring-boot which includes spring 4.0). I've looked at the unit
tests written and have copied them pretty much exactly. When I start the
app, I consistently receive:
Caused by: org.springframework.beans.BeanInstantiationException: Could not
instantiate bean class [org.kie.spring.KModuleBeanFactoryPostProcessor]:
Constructor threw exception; nested exception is
java.lang.NullPointerException
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1069)
... 22 more
Caused by: java.lang.NullPointerException
at
org.kie.spring.KModuleBeanFactoryPostProcessor.initConfigFilePath(KModuleBeanFactoryPostProcessor.java:79)
at
org.kie.spring.KModuleBeanFactoryPostProcessor.<init>(KModuleBeanFactoryPostProcessor.java:64)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
When debugging the NPE comes from line 79,
getClass().getResource("/").getPath(), because getResource yields null.
Here is my spring context file:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:kie="http://drools.org/schema/kie-spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://drools.org/schema/kie-spring http://drools.org/schema/kie-spring.xsd
">
<kie:kmodule id="kmodule">
<kie:kbase name="kbase1" packages="rules.drools">
<kie:ksession name="ksession">
<kie:consoleLogger/>
</kie:ksession>
</kie:kbase>
</kie:kmodule>
<bean id="kiePostProcessor"
class="org.kie.spring.KModuleBeanFactoryPostProcessor"/>
</beans>
Can someone help out?
Thanks!!
11 years, 11 months
