AUTO MIGRATION Error when creating a new rule package
by Jeffrey Ricker
I am deploying Guvnor 5.3.0.Final on Tomcat 7.
I get the following error when I launch a new install. Has anyone seen this before? Is there a workaround?
INFO: Deploying web application directory guvnor
INFO 24-01 12:49:07,278 (RulesRepositoryConfigurator.java:getInstance:46) Creating an instance of the RulesReposi
toryConfigurator.
Logging in with username guvnor and password guvnor
INFO 24-01 12:49:08,418 (RulesRepositoryConfigurator.java:setupRepository:99) Setting up the repository, registering
node types etc.
INFO 24-01 12:49:09,387 (MigrateDroolsPackage.java:migrate:42) AUTO MIGRATION: Performing drools.package migra
tion...
ERROR 24-01 12:49:09,465 (RulesRepository.java:createPackage:870) Error when creating a new rule package
javax.jcr.ItemNotFoundException: Cannot remove a non-existing property.
at org.apache.jackrabbit.jcr2spi.NodeImpl.setProperty(NodeImpl.java:289)
at org.apache.jackrabbit.jcr2spi.NodeImpl.setProperty(NodeImpl.java:317)
at org.apache.jackrabbit.jcr2spi.NodeImpl.setProperty(NodeImpl.java:303)
at org.drools.repository.RulesRepository.createPackage(RulesRepository.java:851)
at org.drools.repository.RulesRepository.createPackage(RulesRepository.java:793)
at org.drools.repository.RulesRepository.listPackages(RulesRepository.java:1371)
at org.drools.repository.migration.MigrateDroolsPackage.migrate(MigrateDroolsPackage.java:43)
at org.drools.repository.RulesRepository.checkForDataMigration(RulesRepository.java:148)
at org.drools.repository.RulesRepository.<init>(RulesRepository.java:135)
at org.drools.guvnor.server.repository.RepositoryStartupService.create(RepositoryStartupService.java:163)
at org.drools.guvnor.server.repository.RepositoryStartupService.create(RepositoryStartupService.java:98)
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.seam.util.Reflections.invoke(Reflections.java:22)
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
at org.drools.guvnor.server.repository.RepositoryStartupService_$$_javassist_seam_2.create(RepositoryStartupServ
ice_$$_javassist_seam_2.java)
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.seam.util.Reflections.invoke(Reflections.java:22)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)
at org.jboss.seam.Component.callComponentMethod(Component.java:2275)
at org.jboss.seam.Component.callCreateMethod(Component.java:2198)
at org.jboss.seam.Component.newInstance(Component.java:2158)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:143)
at org.jboss.seam.init.Initialization.init(Initialization.java:744)
at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:36)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Jan 24, 2012 12:49:09 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Jan 24, 2012 12:49:09 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/guvnor] startup failed due to previous errors
INFO 24-01 12:49:09,512 (LoggingHelper.java:info:49) Removing listeners....
Removing all listeners...
Listeners removed...
INFO 24-01 12:49:09,543 (LoggingHelper.java:info:49) Shutting down repository....
INFO 24-01 12:49:09,543 (RulesRepositoryConfigurator.java:shutdown:172) SHUTDOWN RULES CONFIG
(I apologize if this message appears twice. The server said that the first one was rejected.)
Information Classification: General
14 years, 2 months
Need help with a simple predicate
by swaroop
Hi,
Iam trying to upgrade to 5.3.1 final from Drools 5.1 during the process came
across an issue where a simple rule detailed below has an issue when
migrating with respect to the "grade contains("A") || grade contains("B") ||
grade contains("C")" part, This was working in Drools 5.1, any inputs as in
how to restructure this will be helpful
rule "Some - Definitions"
when
$comp : Company()
$emp:Employee(grade contains("A") || grade contains("B") || grade
contains("C"))
then
System.out.println("EMployee is an operations executive");
end
Thanks
Swaroop
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14 years, 2 months
drools with infinispan
by Apache Zoom
Hi,
Is there an example where thr working memory can point to an infinispan cache to query objects in drl files ? If not, can someone please post a working snippet of code on git hub or something ? I am ideally planning on using apache camel for this .
14 years, 2 months
changeset schema error
by domingo
I have some issues using changeset...
*Test - 1*
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
drools-change-set-5.0.xsd'>
<add>
<resource source='classpath:dir1/dir2/filename.drl' type='DRL' />
</add>
</change-set>
when i use the above changeset (thanks to user forum)...the program works
fine no issues but i got the following warning messages...
(null: 1, 201): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
(null: 1, 201): cvc-elt.1: Cannot find the declaration of element
'change-set'.
(null: 1, 207): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
(null: 1, 285): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
(null: 1, 374): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
(null: 1, 446): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
(null: 1, 534): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.
*Question: how to get rid of this? I completely google the web including
user forum no answer.If it is available in the forum, my apologies for
missing that info...some one could forward me to that info location.*
*Test - 2*
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...'
>
<add>
<resource source='classpath:dir1/dir2/filename.drl' type='DRL' />
</add>
</change-set>
when i use the above changeset (grepcode drools-compiler 5.2.1
Final)...after 1 minute it gives the following error message and the thread
is open for ever...nothing happen.
INFO: KnowledgeDefinitionBuilder::::: changeset == <change-set
xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...'
> <add> <resource source='classpath:dir1/dir2/filename.drl' type='DRL' />
</add> </change-set>
(null: 1, 285): schema_reference.4:
Failed to read schema document
'http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...',
because 1) could not find the document; 2) the document could not be read;
3) the root element of the document is not <xsd:schema>.
(null: 1, 285): cvc-elt.1: Cannot find the declaration of element
'change-set'.
*Question: I copied the schemaLocation from the src, why it is not working?
please advise me?*
-----
with kind regards,
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14 years, 2 months
NPE for any @role( event )
by capn_ed
I am using Drools version 5.4.0.Beta1. My rules are defined in a drl file.
I cannot get a type with @role(event) to run correctly. In every case I've
tried, I get the following error at runtime:
---------------------
java.lang.NullPointerException
at
org.drools.reteoo.ReteooFactHandleFactory.newFactHandle(ReteooFactHandleFactory.java:56)
at
org.drools.common.AbstractFactHandleFactory.newFactHandle(AbstractFactHandleFactory.java:80)
at
org.drools.common.AbstractFactHandleFactory.newFactHandle(AbstractFactHandleFactory.java:65)
at org.drools.common.NamedEntryPoint.createHandle(NamedEntryPoint.java:740)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:286)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:122)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:52)
at test.DroolsTest.main(DroolsTest.java:62)
--------------------
Looking at the source:
ReteooFactHandleFactory.java:56:
if ( type.getTimestampExtractor() != null ) {
"type" is null, hence the NPE. Tracing through in Eclipse, I find that in
ReteooFactHandleFactory.java, on line 54, is the following:
TypeDeclaration type = conf.getTypeDeclaration();
getTypeDeclaration() returns null. Stepped in, goes to
AbstractRuleBase.java:745:
public TypeDeclaration getTypeDeclaration( Class< ? > clazz ) {
TypeDeclaration typeDeclaration = this.classTypeDeclaration.get(
clazz );
if ( typeDeclaration == null ) {
// check super classes and keep a score of how up in the
hierarchy is there a declaration
TypeDeclarationCandidate candidate = checkSuperClasses( clazz );
// now check interfaces
candidate = checkInterfaces( clazz,
candidate,
1 );
if ( candidate != null ) {
typeDeclaration = candidate.candidate;
}
}
return typeDeclaration;
}
On line 746,
TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( clazz );
this.classTypeDeclaration is type Map<Class< ? >, TypeDeclaration>. Map
is empty (size = 0), so the get() returns null. checkSuperClasses() and
checkInterfaces() also attempt to retrieve a TypeDeclaration from this same
(empty) map. So, a null typeDeclaration is returned.
Checking classTypeDeclaration references, the put() occurs in
AbstractRuleBase.addPackages() (AbstractRuleBase.java:476), and in
AbstractRuleBase.populateTypeDeclarationMaps() (AbstractRuleBase.java:336).
The latter is not called before the NPE. Execution in addPackages() do not
get to the classTypeDeclaration.put() because newPkg.getTypeDeclarations()
is empty. So, apparently, the TypeDeclaration is never put into the Map.
Attached is the minimal testcase that exhibits the same behavior.
http://drools.46999.n3.nabble.com/file/n3683063/TestRules.zip
TestRules.zip
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14 years, 2 months
Custom Evaluator compile time error, If I am upgrading from drool 5.0 to 5.3
by kashif10
Hi,
Our current code is using drools 5.0.
We have some custom evaluators, which are working fine with 5.0.
example
*Code from Rule:*
Student(code compareCode "426656000, 426979002, 427295004" )
Where Student is a class & "code" is String field in that class. &
compareCode is a custom operator using custom evaluator. as follows.
*code from OP class:*
public static final Operator COMPARE_CODE =
Operator.addOperatorToRegistry( "compareCode",
false );
*Part from Evaluator Definitions class*
private EvaluatorCache evaluators = new EvaluatorCache() {
private static final long serialVersionUID = 100L;
{
addEvaluator( ValueType.STRING_TYPE, D1Operator.COMPARE_CODE,
CodeEvaluator.INSTANCE );
}
};
public static class CodeEvaluator extends BaseEvaluator {
private static final long serialVersionUID = 100L;
public final static Evaluator INSTANCE = new CodeEvaluator();
public CodeEvaluator() {
super( ValueType.STRING_TYPE,
D1Operator.COMPARE_CODE );
}
public boolean evaluate(InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor,
final Object object1,
final FieldValue object2) {
final Object value1 = extractor.getValue( workingMemory,
object1 );
//System.out.println("************* in
CodeEqualEvaluator.evaluate");
final Object value2 = object2.getValue();
if ( value1 == null ) {
return value2 == null;
}
//return value1.equals( value2 );
return Utility.checkCode((String)value2, (String)value1);
}
Problem:
Now If I update my Eclipse Drool plugin to 5.2.1 or 5.3 I start getting
error
Evaluator does not support type 'ValueType = 'Object'
see attached snapshot/
http://drools.46999.n3.nabble.com/file/n3683440/Drool_problem.jpg
Drool_problem.jpg
Thanks.
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14 years, 2 months
Rules editor in Eclipse 3.7.1 with Jboss Tools
by Jorge Riquelme
Hi people, I'm starting with Drools, and I want to install the plugin
for Eclipse (I just need the rules editor for now).
In http://www.jboss.org/drools/downloads.html says that there is a
Drools plugin for Eclipse, part of Jboss Tools. I've installed a fresh
Eclipse 3.7.1, and JBoss Tools for Indigo from the marketplace, but I
can't find any plugin or feature related to Drools. There isn't any
file association or content type provided by Jboss Tools for rules/drl
files.
Maybe I'm doing something wrong, I would appreciate some advice to get
this thing working.
thanks
pd: I'm using the following update site for Jboss Tools:
http://download.jboss.org/jbosstools/updates/development/indigo
--
Jorge Riquelme Santana
14 years, 2 months
jBPM 5.2 and Drools 5.3
by gboro54
I am working with jBPM for the first time since it was rewritten based on
Drools flow. I have a set up rules(separated with rule rule flow groups),
which need to be executed at different part of a process. If I just start
the process as such(with parameters)
ProcessInstance processInstance = this.session.startProcess(
"com.sample.process", vars);
My rules are ignored. The only thing I can do is insert the objects into
session then do the following:
ProcessInstance processInstance = this.session.startProcess(
"com.nasdaq.billing.core", vars);
session.fireAllRules();
Is this the correct way to handle this or am I missing something(the
documentation is lacking in this area).
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14 years, 2 months
proxy config for change-set schema fetch?
by Allen, Robert R
Hi All:
I'm running drools expert and guvnor on a single machine that runs
behind an authentication-required HTTP proxy to the outside world. I'm
fetching rulesets from the guvnor URL using the KnowledgeAgent. The
loading of each URL takes a consistent 3 minutes and it appears that the
delay may be from trying to fetch the xml schema which does not succeed
because the request must go to jboss thru a proxy. I get these two
messages in the log file:
(null: 1, 290): schema_reference.4: Failed to read schema document
'http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/sr
c/main/resources/change-set-1.0.0.xsd', because 1) could not find the
document; 2) the document could not be read; 3) the root element of the
document is not <xsd:schema>.
(null: 1, 290): cvc-elt.1: Cannot find the declaration of element
'change-set'.
After the delay, the parsing works correctly and the KnowledgeAgent
creates the KnowledgeBase correctly. Here is an example of the change
set being passed to the KnowledgeAgent:
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src
/main/resources/change-set-1.0.0.xsd' > <add> <resource
source='http://localhost:8080/arcotadmin/org.drools.guvnor.Guvnor/packag
e/pkg1/LATEST.drl' type='DRL' basicAuthentication='enabled'
username='usr1' password='123456' /> </add> </change-set>
Questions:
1. Can I tell KnowledgeAgent to use a local file for the schema
and thereby bypass the external lookup altogether? What would the syntax
for that look like?
2. Is there a way to provide proxy information to KnowledgeAgent
or drools expert as a whole that includes authentication credentials?
Thanks,
-Robert
14 years, 2 months
