[rules-users] How to monitor drools execution time?
I want to check how long each rule executed. Can I add any listener on drools run time to get the rule time? Thanks, Zhao Yi -- View this message in context: http://drools.46999.n3.nabble.com/How-to-monitor-drools-execution-time-tp3505792p3505792.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] How to monitor drools execution time?
You can use the Drools guvnor to measure the execution time of each rule. This is the feature of that. On Mon, Nov 14, 2011 at 11:00 AM, Zhao Yi zhaoyi0...@gmail.com wrote: I want to check how long each rule executed. Can I add any listener on drools run time to get the rule time? Thanks, Zhao Yi -- View this message in context: http://drools.46999.n3.nabble.com/How-to-monitor-drools-execution-time-tp3505792p3505792.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] How to monitor drools execution time?
Sure, you can use /ksession.addEventListener( listener )/ to add your listeners. You'll have to implement the /AgendaEventListener/ interface: in particular, the /beforeActivationFired/ and /afterActivationFired/ handlers. If needed, the /WorkingMemoryEventListener/ will let you monitor object insertions and retractions. You can also see section 4.3.5 in the Drools Expert User Guide for more details. Davide -- View this message in context: http://drools.46999.n3.nabble.com/How-to-monitor-drools-execution-time-tp3505792p3505821.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] How to run an agenda group multiple times?
Were the rules in the agenda group entitled to fire more than once? For a rule to fire, it must be activated by the insertion, update or (sometimes) retraction of one or more objects. Once a rule has fired, it can't fire again until it gets activated again. An agenda-group can be used to /prevent/ an active rule from firing (if the rule belongs to a non-focused group), but can't make a rule fire again Davide -- View this message in context: http://drools.46999.n3.nabble.com/How-to-run-an-agenda-group-multiple-times-tp3504139p3505831.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] String length check
I'd also use the int 8 instead of the String 8 :) -- View this message in context: http://drools.46999.n3.nabble.com/String-length-check-tp3502269p3505833.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] Help needed - Repository not getting initialised?
Hi,
Repository is not getting initialised, throws NPE.
Please advise.
TIA.
public static Repository repository;
public static Session getSession() throws Exception {
return getSession(true);
}
public static synchronized Session getSession(boolean erase) {
try {
if (repository == null) {
if (erase) {
File repoDir = new File(repository);
System.out.println(DELETE test repo dir:
+ repoDir.getAbsolutePath());
RepositorySessionUtil.deleteDir(repoDir);
System.out.println(TEST repo dir deleted.);
}
JCRRepositoryConfigurator config = new
JackrabbitRepositoryConfigurator();
String home = System
.getProperty(guvnor.repository.dir);
repository = config.getJCRRepository(home);
Session testSession = repository
.login(new SimpleCredentials(alan_parsons,
password.toCharArray()));
RulesRepositoryAdministrator admin = new
RulesRepositoryAdministrator(
testSession);
if (erase admin.isRepositoryInitialized()) {
admin.clearRulesRepository();
}
config.setupRulesRepository(testSession);
return testSession;
} else {
return repository.login(new SimpleCredentials(
alan_parsons, password.toCharArray()));
}
} catch (RepositoryException e) {
throw new IllegalStateException(e);
}
}
public static void main(String [] args) throws Exception{
getSession();
}
Below is the exception..
DELETE test repo dir: D:\drools\TestRepository\repository
TEST repo dir deleted.
Exception in thread main java.lang.NullPointerException: dispatcher
at
org.apache.jackrabbit.core.observation.ObservationManagerImpl.init(ObservationManagerImpl.java:97)
at
org.apache.jackrabbit.core.WorkspaceImpl.getObservationManager(WorkspaceImpl.java:748)
at
org.apache.jackrabbit.core.SessionImpl.removeRegisteredEventListeners(SessionImpl.java:1193)
at org.apache.jackrabbit.core.SessionImpl.logout(SessionImpl.java:1222)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doDispose(RepositoryImpl.java:2194)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.dispose(RepositoryImpl.java:2149)
at
org.apache.jackrabbit.core.RepositoryImpl.doShutdown(RepositoryImpl.java:1175)
at
org.apache.jackrabbit.core.RepositoryImpl.shutdown(RepositoryImpl.java:1127)
at
org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:544)
at
org.apache.jackrabbit.core.RepositoryImpl.init(RepositoryImpl.java:366)
at
org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:673)
at
org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:231)
at
org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:279)
at
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:375)
at
org.apache.jackrabbit.commons.AbstractRepository.login(AbstractRepository.java:123)
at Hello.getSession(Hello.java:50)
at Hello.getSession(Hello.java:27)
at Hello.main(Hello.java:72)
Regards,
Praveen.
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Re: [rules-users] String length check
@Davide, I'm using the guided editor and I am putting the value as 8 But the generated source shows 8. Not sure of this is a defect in Drools or something that I'm doing incorrectly. -- View this message in context: http://drools.46999.n3.nabble.com/String-length-check-tp3502269p3506079.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] [rule engine advantage?]Logic and Data Separation - how to archieve the transparent domain/fact object insertion?
Logic and Data Separation Your data is in your domain objects, the logic is in the rules. This is fundamentally breaking the OO coupling of data and logic, which can be an advantage or a disadvantage depending on your point of view. The upshot is that the logic can be much easier to maintain as there are changes in the future, as the logic is all laid out in rules. This can be especially true if the logic is cross-domain or multi-domain logic. Instead of the logic being spread across many domain objects or controllers, it can all be organized in one or more very distinct rules files. The current practice we are following demonstrate a strong relationship between fact objects and the rule files itself, the rule needs to understand what fact object available in the working memory and the working memory may also consider what kind of rules can be written against objects in memory thus the application developers need insert/write rules carefully and better to be done by 1 developer (or we can say, depends on how the rule is written, it will impact what objects/how objects are being inserted into the working memory). Can someone share their experiences how to make the knowledge session/fact object maintenance work as transparent as possible? how to decouple the fact object maintenance work from the rules? At which layer you usually insert fact object to the work memory? Ivan - Ivan, your Panda, forever -- View this message in context: http://drools.46999.n3.nabble.com/rule-engine-advantage-Logic-and-Data-Separation-how-to-archieve-the-transparent-domain-fact-object-i-tp3506131p3506131.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] Email Service
Hi guys,
Iam trying to send email through drools by using bpmn.xml...in
order to do so i need to register a work item handler into my session.
I have done in this way
ksession.getWorkItemManager().registerWorkItemHandler(Email,
emailWorkItemHandler);
And this is my class for that handler
public class NotificationWorkItemHandler implements
WorkItemHandler {
public void executeWorkItem(WorkItem workItem, WorkItemManager
manager) {
// extract parameters
String from = (String) workItem.getParameter(From);
String to = (String) workItem.getParameter(To);
String message = (String) workItem.getParameter(Message);
String priority = (String) workItem.getParameter(Priority);
// send email
*EmailService service =
ServiceRegistry.getInstance().getEmailService();*
service.sendEmail(from, to, Notification, message);
// notify manager that work item has been completed
manager.completeWorkItem(workItem.getId(), null);
}
My issue is Email service need some import but I cant see what needs to be
included
Could any one help me out in this issue?
Thanks in advance
Anjali
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Re: [rules-users] String length check
Guvnor used to escape all literals with quotation marks before 5.2. There have been numerous fixes to the BRL Guided Editor for 5.2 onwards. I would definitely recommend an upgrade. Can you please advise if you used an expression for your nested accessor or sub-field constraints? Thanks, Mike On 14 November 2011 06:46, lansyj lans...@gmail.com wrote: @Davide, I'm using the guided editor and I am putting the value as 8 But the generated source shows 8. Not sure of this is a defect in Drools or something that I'm doing incorrectly. -- View this message in context: http://drools.46999.n3.nabble.com/String-length-check-tp3502269p3506079.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
