Declarative agenda final API
by Marcin Bednarek
Hello,
Looks like my previous post was not sent to mailing list bu only to nabble
forum so I am resending it.
I plan to use declarative agenda API: kcontext.blockActivation,
kcontext.unblockAllActivations, kcontext.cancelActivation.
In Drools documentation there is written that this API is highly
experimental:
*This feature is off by default and must be explicitly enabled, that is
because it is considered highly experimental for the moment and will be
subject to change.*
Could you please let me know in which version you plan to make declarative
agenda API, solution final?
Thanks,
Marcin
14 years, 2 months
java.lang.ArrayIndexOutOfBoundsException at Frame
by mujoko mujoko
Hi Drools Users,
I'm new member, Mujoko.
I got issue regarding my rules. Several times got exception when trying to
create KnowledgeSession. I used drools-core 5.3.0.Final and drools-compiler
5.3.0.Final.
java.lang.ArrayIndexOutOfBoundsException: -1
at org.mvel2.asm.Frame.merge(Frame.java:1373)
at org.mvel2.asm.Frame.merge(Frame.java:1350)
at org.mvel2.asm.MethodWriter.visitMaxs(MethodWriter.java:1282)
at
org.drools.rule.builder.dialect.asm.ClassGenerator$MethodDescr.write(ClassGenerator.java:480)
at
org.drools.rule.builder.dialect.asm.ClassGenerator.generateBytecode(ClassGenerator.java:50)
at
org.drools.rule.builder.dialect.asm.ASMEvalBuilder.createEvalBytecode(ASMEvalBuilder.java:63)
at
org.drools.rule.builder.dialect.asm.AbstractASMEvalBuilder.build(AbstractASMEvalBuilder.java:49)
at
org.drools.rule.builder.dialect.asm.AbstractASMEvalBuilder.build(AbstractASMEvalBuilder.java:15)
at
org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65)
at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:80)
at
org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2289)
at
org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:822)
--
Mujoko
http://www.linkedin.com/in/mujoko
14 years, 2 months
unable to update the changes (guvnor rules) to application using changeset
by srinivasasanda
Hi All
I am not able to get the updated rules still i used change set , can any one
plz sort out this problem
The source code is
using this program i am printing the rule name in package for every five
seconds.
for first time it prints rule names in package, after that packages are not
available in kbase...
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.agent.KnowledgeAgent;
import org.drools.agent.KnowledgeAgentFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderError;
import org.drools.builder.KnowledgeBuilderErrors;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.definition.KnowledgePackage;
import org.drools.io.ResourceChangeScannerConfiguration;
import org.drools.io.ResourceFactory;
import org.drools.logger.KnowledgeRuntimeLogger;
import org.drools.logger.KnowledgeRuntimeLoggerFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.StatelessKnowledgeSession;
import org.drools.agent.*;
public class ChangeSet1
{
private ChangeSet1()
{
}
public static synchronized ChangeSet1 start()
{
try{
if ( _instance == null)
{
_instance = new ChangeSet1();
String url="file:H:\\RuleFiles\\ChangeSet.xml";
_kagent = KnowledgeAgentFactory.newKnowledgeAgent( "MyAgent" );
System.out.println("after creating kagent");
_kagent.applyChangeSet(ResourceFactory.newUrlResource(url));
System.out.println("after apply change set");
//Create Knowledge Base
_kbase = _kagent.getKnowledgeBase();
ResourceChangeScannerConfiguration sconf=
ResourceFactory.getResourceChangeScannerService().newResourceChangeScannerConfiguration();
sconf.setProperty("drools.resource.scanner.interval", "5");
ResourceFactory.getResourceChangeScannerService().configure(sconf);
ResourceFactory.getResourceChangeNotifierService().start();
ResourceFactory.getResourceChangeScannerService().start();
System.out.println("After starting Notification service");
}
}catch(Exception e)
{
System.out.println(e.getMessage());
}
return _instance;
}
private static KnowledgeAgent _kagent;
private static ChangeSet1 _instance;
private static KnowledgeBase _kbase=null;
private static StatelessKnowledgeSession _ksession=null;
public static void main(String[] args)
{
int counter=0;
try
{
System.out.println("Before rule engine start ");
ChangeSet1.start();
System.out.println("After rule engine start ");
do{
_kbase = _kagent.getKnowledgeBase();
Collection<KnowledgePackage> kpackages =
_kbase.getKnowledgePackages();
System.out.println("no of packages"+kpackages.size());
for(KnowledgePackage kpackage : kpackages)
{
for(org.drools.definition.rule.Rule rule1
:kpackage.getRules())
{
String packname= rule1.getPackageName();
String rulename=rule1.getName();
System.out.println("This is : "+packname+" Packages and
RuleName is " +rulename);
}
}
counter++;
try{
Thread.sleep(10000);
}catch (InterruptedException e){
System.out.println("Sleep exception occured");
}
}while(counter < 10000);
}catch (Throwable t){
t.printStackTrace();
}
}
}
This is my changeset.xml
<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='http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/prici...'
type='DRL' />
<resource
source='http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/searc...'
type='DRL' />
</add>
</change-set>
Output:--
Before rule engine start
after creating kagent
after apply change set
After starting Notification service
After rule engine start
no of packages2
This is : pricing Packages and RuleName is ageprice
This is : pricing Packages and RuleName is incomeprice
This is : pricing Packages and RuleName is cpvprice
This is : search Packages and RuleName is age
This is : search Packages and RuleName is income
This is : search Packages and RuleName is cpv
no of packages0
<after updating package count is 0 so no rules>
no of packages0
no of packages0
--
View this message in context: http://drools.46999.n3.nabble.com/unable-to-update-the-changes-guvnor-rul...
Sent from the Drools: User forum mailing list archive at Nabble.com.
14 years, 2 months
Building Guvnor - Required Java version?
by Stephen Masters
Hi folks,
Having grabbed Guvnor from github and switched to the 5.3.1.Final tag, I'm getting test failures when in the IDE project. Now, I' am admittedly building with Java 1.7.0_02, so that may be the issue. Has anybody else tried building with Java 7? Did you experience success/failure in doing so?
I'm just wondering whether I need to install a version of Java 6 just to get this building or whether the issue is likely to be something else.
Many thanks,
Steve
p.s. Build summary below...
[INFO] Reactor Summary:
[INFO]
[INFO] Guvnor multiproject ............................... SUCCESS [0.933s]
[INFO] Guvnor repository connector multiproject .......... SUCCESS [0.126s]
[INFO] Guvnor repository connector JCR ................... SUCCESS [2.029s]
[INFO] Guvnor repository connector Jackrabbit ............ SUCCESS [1.132s]
[INFO] Guvnor repository connector ModeShape ............. SUCCESS [1.301s]
[INFO] Guvnor repository ................................. SUCCESS [8:22.963s]
[INFO] Drools and jBPM IDE common ........................ FAILURE [15.296s]
[INFO] Guvnor web application ............................ SKIPPED
[INFO] Guvnor bulk importer .............................. SKIPPED
[INFO] Guvnor examples ................................... SKIPPED
14 years, 2 months
Re: [rules-users] AUTO MIGRATION Error when creating a new rule package
by the_ricker
I am attempting to use an existing Jackrabbit repository. To do so, I have
added a simple repository confuigurator as follows:
public class GuvnorCrxDavConfigurator extends JCRRepositoryConfigurator {
public GuvnorCrxDavConfigurator() {
log.info("Creating CRX configurator.");
defaultJCRImplClass = RepositoryFactoryImpl.class.getName();
}
@Override
public Repository getJCRRepository(Properties properties) throws
RepositoryException {
log.info("Creating CRX client repository.");
try {
String url = null;
if (properties != null) {
url = properties.getProperty(REPOSITORY_URL);
}
if (url == null) {
url = DEFAULT_URL;
}
log.info("Repository URL is " + url);
repository = JcrUtils.getRepository(url);
if (repository != null) {
log.info("Client repository created.");
} else {
log.error("Repository NOT created.");
}
return repository;
} catch (Exception e) {
throw new RepositoryException(e);
}
}
public Session login(String userName) throws RepositoryException {
log.info("Attempted login with username " + userName);
System.out.println("Logging in with username " + userName);
Credentials credentials = new SimpleCredentials(userName,
"password".toCharArray());
return repository.login(credentials);
}
@Override
public Session login(String userName, String password) throws
RepositoryException {
log.info("Attempted login with username " + userName + " and password " +
password);
System.out.println("Logging in with username " + userName + " and password
" + password);
return super.login(userName, password);
}
public void registerNodeTypesFromCndFile(String cndFileName, Session
session, Workspace workspace)
throws RepositoryException {
log.info("Manually load CND files to CRX");
}
/**
* {@inheritDoc}@see
* org.drools.repository.JCRRepositoryConfigurator#shutdown()
*/
public void shutdown() {
if (repository instanceof TransientRepository) {
((TransientRepository) repository).shutdown();
}
}
}
And I have registered the new configurator in
<component name="repositoryConfiguration">
<property name="properties">
<key>org.drools.repository.configurator</key>
<value>com.statestreet.rxp3.pilot.guvnor.GuvnorCrxDavConfigurator</value>
<key>org.apache.jackrabbit.repository.uri</key>
<value>http://localhost:7402/crx/server</value>
<key>org.drools.repository.admin.username</key>
<value>guvnor</value>
<key>org.drools.repository.admin.password</key>
<value>guvnor</value>
</property>
</component>
The root nodes are created in the repository, but then somewhere in the auto
migration process, it barfs.
I guess I am new territory here.
--
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Sent from the Drools: User forum mailing list archive at Nabble.com.
14 years, 2 months
