8:59 a.m.
Hi, I have managed to install Drools-core and Drools-compiler in my Equinox
osgi environment, I can compile rules and execute them just fine, I was just
wandering how to configure a KnowledgeAgent using
KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I managed to
configure one but i am not able to reload rules when they change at runtime.
I have started ResourceChangeScannerService and
ResourceChangeNotifierService, changeset related to the rules file gets read
but no change gets implemented. An idea?
Here is the code:
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
ServiceReference serviceRef = bc
.getServiceReference(ServiceRegistry.class.getName());
ServiceRegistry registry = (ServiceRegistry) bc.getService(serviceRef);
KnowledgeBuilderFactoryService knowledgeBuilderFactoryService = registry
.get(KnowledgeBuilderFactoryService.class);
KnowledgeBaseFactoryService knowledgeBaseFactoryService = registry
.get(KnowledgeBaseFactoryService.class);
ResourceFactoryService resourceFactoryService = registry
.get(ResourceFactoryService.class);
KnowledgeBuilderConfiguration kbConf = knowledgeBuilderFactoryService
.newKnowledgeBuilderConfiguration(null, getClass()
.getClassLoader());
KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService
.newKnowledgeBuilder(kbConf);
ResourceFactoryService resource = resourceFactoryService;
kbuilder.add(resource.newFileSystemResource(filePath),
ResourceType.CHANGE_SET);
if (kbuilder.hasErrors()) {
System.out.println(kbuilder.getErrors());
throw new RuntimeException(kbuilder.getErrors().toString());
}
KnowledgeBaseConfiguration kbaseConf = knowledgeBaseFactoryService
.newKnowledgeBaseConfiguration(null, getClass()
.getClassLoader());
KnowledgeBase kbase = knowledgeBaseFactoryService
.newKnowledgeBase(kbaseConf);
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty("drools.agent.scanDirectories", "true");
aconf.setProperty("drools.agent.scanResources", "true");
aconf.setProperty("drools.agent.newInstance", "false");
kagent = KnowledgeAgentFactory.newKnowledgeAgent( "CoreDroolsAgent",kbase,
aconf);
kagent.applyChangeSet(resource.newFileSystemResource(filePath));
Thanks in advance!
Cheers
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9:19 a.m.
First, you don't need to compie the change set by your self the agent will
do that in applyChangeSet() method.
Some questions that could help to figure out the problem:
1. Which version of drools are you using? (I assume >= 5.1M1)
2. Do you have any stacktrace/log file?
3. Is your cange set pointing to DRL resources. If so, the
agent internally creates kbuilders to compile them. You could have class
loaders problems there. By default the agent logs everything to System.err.
Could you post the output here?
Best,
On Fri, Jun 25, 2010 at 9:59 AM, mmarmol <marcelo.marmol(a)gmail.com> wrote:
Hi, I have managed to install Drools-core and Drools-compiler in my Equinox
osgi environment, I can compile rules and execute them just fine, I was
just
wandering how to configure a KnowledgeAgent using
KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I managed
to
configure one but i am not able to reload rules when they change at
runtime.
I have started ResourceChangeScannerService and
ResourceChangeNotifierService, changeset related to the rules file gets
read
but no change gets implemented. An idea?
Here is the code:
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
ServiceReference serviceRef = bc
.getServiceReference(ServiceRegistry.class.getName());
ServiceRegistry registry = (ServiceRegistry)
bc.getService(serviceRef);
KnowledgeBuilderFactoryService
knowledgeBuilderFactoryService = registry
.get(KnowledgeBuilderFactoryService.class);
KnowledgeBaseFactoryService knowledgeBaseFactoryService =
registry
.get(KnowledgeBaseFactoryService.class);
ResourceFactoryService resourceFactoryService = registry
.get(ResourceFactoryService.class);
KnowledgeBuilderConfiguration kbConf =
knowledgeBuilderFactoryService
.newKnowledgeBuilderConfiguration(null,
getClass()
.getClassLoader());
KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService
.newKnowledgeBuilder(kbConf);
ResourceFactoryService resource = resourceFactoryService;
kbuilder.add(resource.newFileSystemResource(filePath),
ResourceType.CHANGE_SET);
if (kbuilder.hasErrors()) {
System.out.println(kbuilder.getErrors());
throw new
RuntimeException(kbuilder.getErrors().toString());
}
KnowledgeBaseConfiguration kbaseConf =
knowledgeBaseFactoryService
.newKnowledgeBaseConfiguration(null,
getClass()
.getClassLoader());
KnowledgeBase kbase = knowledgeBaseFactoryService
.newKnowledgeBase(kbaseConf);
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty("drools.agent.scanDirectories",
"true");
aconf.setProperty("drools.agent.scanResources",
"true");
aconf.setProperty("drools.agent.newInstance",
"false");
kagent = KnowledgeAgentFactory.newKnowledgeAgent(
"CoreDroolsAgent",kbase,
aconf);
kagent.applyChangeSet(resource.newFileSystemResource(filePath));
Thanks in advance!
Cheers
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Esteban Aliverti
9:59 a.m.
1- Drools 5.1M2
2- I have logs, but Drools isn't showing any error, everything looks fine,
just changes to files are not used.
3- Agent sees the files because is telling me that has found 4 files, but is
not updating them.
This is my change set file:
<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='file://home/mxhero/workspaceMxHero/engine/configurations/drools/rules/'
type='DRL' />
</add>
</change-set>
In that directory i have 3 rules files. Here is the log by drools:
registering core services
core services registered
registering compiler services
compiler services registered
registering api services
registering api : org.drools.io.impl.ResourceFactoryServiceImpl@114025 :
interface org.drools.io.ResourceFactoryService
registering api : org.drools.impl.KnowledgeBaseFactoryServiceImpl@14a9387 :
interface org.drools.KnowledgeBaseFactoryService
registering api :
org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl@2da5a6 :
interface org.drools.builder.KnowledgeBuilderFactoryService
api drools services registered
[2010:06:176 10:06:53:info] ResourceChangeScanner created with default
interval=60
[2010:06:176 10:06:58:info] ResourceChangeScanner reconfigured with
interval=30
[2010:06:176 10:06:66:info] ResourceChangeNotification created
[2010:06:176 10:06:67:info] ResourceChangeNotification scanner has started
[2010:06:176 10:06:100:info] ResourceChangeNotification has started
listening for ChangeSet publications
[2010:06:176 10:06:100:debug] ResourceChangeNotification thread is waiting
for queue update
[2010:06:176 10:06:101:debug] ResourceChangeScanner attempt to scan 0
resources
[2010:06:176 10:06:101:debug] ResourceChangeScanner thread is waiting for 30
seconds.
(null: 3, 88): 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: 3, 88): cvc-elt.1: Cannot find the declaration of element
'change-set'.
(null: 4, 7): 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: 7, 17): 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>.
java.lang.NoClassDefFoundError: sun/misc/Unsafe
at
org.mvel2.optimizers.dynamic.DynamicClassLoader.<clinit>(DynamicClassLoader.java:39)
at
org.mvel2.optimizers.dynamic.DynamicOptimizer._init(DynamicOptimizer.java:47)
at
org.mvel2.optimizers.dynamic.DynamicOptimizer.init(DynamicOptimizer.java:43)
at
org.mvel2.optimizers.OptimizerFactory.setDefaultOptimizer(OptimizerFactory.java:106)
at org.mvel2.optimizers.OptimizerFactory.<clinit>(OptimizerFactory.java:64)
at
org.drools.rule.builder.dialect.java.AbstractJavaRuleBuilder.<clinit>(AbstractJavaRuleBuilder.java:27)
at
org.drools.rule.builder.dialect.java.JavaDialect.<clinit>(JavaDialect.java:98)
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.newDialect(JavaDialectConfiguration.java:65)
at
org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry(PackageBuilderConfiguration.java:300)
at org.drools.compiler.PackageRegistry.<init>(PackageRegistry.java:24)
at org.drools.compiler.PackageBuilder.newPackage(PackageBuilder.java:853)
at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:569)
at
org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:264)
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:456)
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:512)
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)
at
org.mxhero.engine.core.internal.pool.InputPool.createAgent(InputPool.java:117)
at org.mxhero.engine.core.internal.pool.InputPool.init(InputPool.java:51)
at org.mxhero.engine.domain.pool.TaskPool.run(TaskPool.java:28)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: sun.misc.Unsafe
at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 20 more
[2010:06:176 10:06:456:debug] ResourceChangeNotification monitor added
monitor=org.drools.io.impl.ResourceChangeScannerImpl@1b00766
[2010:06:176 10:06:457:debug] KnowledgeAgent building resource map
[2010:06:176 10:06:457:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule.drl']
to KnowledgeDefinition=[Rule name=Mail 2, agendaGroup=MAIN, salience=-2,
no-loop=true]
[2010:06:176 10:06:457:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/2MailRule.drl']
to KnowledgeDefinition=[Rule name=Mail, agendaGroup=MAIN, salience=0,
no-loop=true]
[2010:06:176 10:06:457:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule77.drl']
to KnowledgeDefinition=[Rule name=Mail 77, agendaGroup=MAIN, salience=-1,
no-loop=true]
[2010:06:176 10:06:457:info] KnowledgeAgent created, with configuration:
monitorChangeSetEvents=true scanResources=true scanDirectories=true
newInstance=false
(null: 3, 88): 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>.
[2010:06:176 10:06:482:info] KnowledegAgent has started listening for
ChangeSet notifications
(null: 3, 88): cvc-elt.1: Cannot find the declaration of element
'change-set'.
(null: 4, 7): 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: 7, 17): 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>.
[2010:06:176 10:06:486:info] KnowledgeAgent applying ChangeSet
[2010:06:176 10:06:487:debug] KnowledgeAgent subscribing to
directory=[UrlResource
path='file://home/mxhero/workspaceMxHero/engine/configurations/drools/rules/']
[2010:06:176 10:06:488:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@125ee49 to
resource=[UrlResource
path='file://home/mxhero/workspaceMxHero/engine/configurations/drools/rules/']
[2010:06:176 10:06:489:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@19a6087 to
resource=[UrlResource
path='file://home/mxhero/workspaceMxHero/engine/configurations/drools/rules/']
[2010:06:176 10:06:490:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule.drl']
to KnowledgeDefinition=null
[2010:06:176 10:06:490:debug] KnowledgeAgent notifier subscribing to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule.drl']
[2010:06:176 10:06:490:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@125ee49 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule.drl']
[2010:06:176 10:06:490:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@19a6087 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule.drl']
[2010:06:176 10:06:491:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/2MailRule.drl']
to KnowledgeDefinition=null
[2010:06:176 10:06:491:debug] KnowledgeAgent notifier subscribing to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/2MailRule.drl']
[2010:06:176 10:06:491:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@125ee49 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/2MailRule.drl']
[2010:06:176 10:06:491:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@19a6087 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/2MailRule.drl']
[2010:06:176 10:06:491:debug] KnowledgeAgent mapping resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule77.drl']
to KnowledgeDefinition=null
[2010:06:176 10:06:491:debug] KnowledgeAgent notifier subscribing to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule77.drl']
[2010:06:176 10:06:491:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@125ee49 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule77.drl']
[2010:06:176 10:06:492:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@19a6087 to
resource=[FileResource
file='/home/mxhero/workspaceMxHero/engine/configurations/drools/rules/MailRule77.drl']
[2010:06:176 10:06:492:debug] KnowledgeAgent rebuilding KnowledgeBase using
ChangeSet
[2010:06:176 10:06:492:info] KnowledgeAgent performing an incremental build
of the ChangeSet
[2010:06:176 10:06:498:debug] KnowledgeAgent adding KnowledgePackages from
KnowledgeBuilder
[2010:06:176 10:06:498:info] KnowledgeAgent incremental build of
KnowledgeBase finished and in use
[2010:06:176 10:06:498:debug] KnowledgeAgent finished rebuilding
KnowledgeBase using ChangeSet
after 30 seconds waiting for update i get this one:
[2010:06:176 10:06:101:debug] ResourceChangeScanner attempt to scan 4
resources
[2010:06:176 10:06:101:debug] ResourceChangeScanner scanning
directory=[UrlResource
path='file://home/mxhero/workspaceMxHero/engine/configurations/drools/rules/']
[2010:06:176 10:06:103:debug] ResourceChangeScanner thread is waiting for 30
seconds.
Changes betweens time for update are not reflected.
I know I am probably doing something wrong in the way I am setting the
agent, because i just took the OSGI example and added the agent to it. Any
advice how setting the agent in the right way will be great.
Thanks
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4:33 p.m.
Ok, I was indeed doing things wrong, i removed the creation of the package
and now everything is working just fine. I will live here the code, may be
some one might find it useful. Thanks for the tip.
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
ServiceReference serviceRef = bc
.getServiceReference(ServiceRegistry.class.getName());
ServiceRegistry registry = (ServiceRegistry) bc.getService(serviceRef);
KnowledgeBaseFactoryService knowledgeBaseFactoryService = registry
.get(KnowledgeBaseFactoryService.class);
ResourceFactoryService resourceFactoryService = registry
.get(ResourceFactoryService.class);
ResourceFactoryService resource = resourceFactoryService;
KnowledgeBaseConfiguration kbaseConf = knowledgeBaseFactoryService
.newKnowledgeBaseConfiguration(null, getClass()
.getClassLoader());
KnowledgeBase kbase = knowledgeBaseFactoryService
.newKnowledgeBase(kbaseConf);
KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty("drools.agent.scanDirectories", "true");
aconf.setProperty("drools.agent.scanResources", "true");
aconf.setProperty("drools.agent.newInstance", "false");
kagent = KnowledgeAgentFactory.newKnowledgeAgent( "CoreDroolsAgent",kbase,
aconf);
kagent.applyChangeSet(resource.newFileSystemResource(filePath));
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5:25 a.m.
Hi,
I'm trying to get drools-core and drools-compiler 5.1 running on spring
dm-server. Does anyone have the minimal list of OSGi bundles as maven
dependencies handy?
Thanks,
Dave
On 25 June 2010 13:59, mmarmol <marcelo.marmol(a)gmail.com> wrote:
Hi, I have managed to install Drools-core and Drools-compiler in my Equinox
osgi environment, I can compile rules and execute them just fine, I was
just
wandering how to configure a KnowledgeAgent using
KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I managed
to
configure one but i am not able to reload rules when they change at
runtime.
I have started ResourceChangeScannerService and
ResourceChangeNotifierService, changeset related to the rules file gets
read
but no change gets implemented. An idea?
Here is the code:
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
ServiceReference serviceRef = bc
.getServiceReference(ServiceRegistry.class.getName());
ServiceRegistry registry = (ServiceRegistry)
bc.getService(serviceRef);
KnowledgeBuilderFactoryService
knowledgeBuilderFactoryService = registry
.get(KnowledgeBuilderFactoryService.class);
KnowledgeBaseFactoryService knowledgeBaseFactoryService =
registry
.get(KnowledgeBaseFactoryService.class);
ResourceFactoryService resourceFactoryService = registry
.get(ResourceFactoryService.class);
KnowledgeBuilderConfiguration kbConf =
knowledgeBuilderFactoryService
.newKnowledgeBuilderConfiguration(null,
getClass()
.getClassLoader());
KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService
.newKnowledgeBuilder(kbConf);
ResourceFactoryService resource = resourceFactoryService;
kbuilder.add(resource.newFileSystemResource(filePath),
ResourceType.CHANGE_SET);
if (kbuilder.hasErrors()) {
System.out.println(kbuilder.getErrors());
throw new
RuntimeException(kbuilder.getErrors().toString());
}
KnowledgeBaseConfiguration kbaseConf =
knowledgeBaseFactoryService
.newKnowledgeBaseConfiguration(null,
getClass()
.getClassLoader());
KnowledgeBase kbase = knowledgeBaseFactoryService
.newKnowledgeBase(kbaseConf);
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty("drools.agent.scanDirectories",
"true");
aconf.setProperty("drools.agent.scanResources",
"true");
aconf.setProperty("drools.agent.newInstance",
"false");
kagent = KnowledgeAgentFactory.newKnowledgeAgent(
"CoreDroolsAgent",kbase,
aconf);
kagent.applyChangeSet(resource.newFileSystemResource(filePath));
Thanks in advance!
Cheers
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5:37 a.m.
The set of OSGi bundles dependencies can be used here:
http://www.jboss.org/drools/downloads.html
We test against spring:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/org.drools....
This is our project that builds osgi-bundles and does some testing of
Drools against OSGi:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/
I have done some minimal OSGi docs. OSGI is stil la work in progress for
us and we have only osgi-ified some aspects Drools, although we have
done extensive work on the classloaders to make it fit better.
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
Please do test what we have, maybe help us OSGi-ify other aspects of drools.
Mark
On 04/08/2010 10:25, David Conde wrote:
Hi,
I'm trying to get drools-core and drools-compiler 5.1 running on
spring dm-server. Does anyone have the minimal list of OSGi bundles as
maven dependencies handy?
Thanks,
Dave
On 25 June 2010 13:59, mmarmol <marcelo.marmol(a)gmail.com
<mailto:marcelo.marmol@gmail.com>> wrote:
Hi, I have managed to install Drools-core and Drools-compiler in
my Equinox
osgi environment, I can compile rules and execute them just fine,
I was just
wandering how to configure a KnowledgeAgent using
KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I
managed to
configure one but i am not able to reload rules when they change
at runtime.
I have started ResourceChangeScannerService and
ResourceChangeNotifierService, changeset related to the rules file
gets read
but no change gets implemented. An idea?
Here is the code:
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
ServiceReference serviceRef = bc
.getServiceReference(ServiceRegistry.class.getName());
ServiceRegistry registry = (ServiceRegistry)
bc.getService(serviceRef);
KnowledgeBuilderFactoryService
knowledgeBuilderFactoryService = registry
.get(KnowledgeBuilderFactoryService.class);
KnowledgeBaseFactoryService
knowledgeBaseFactoryService = registry
.get(KnowledgeBaseFactoryService.class);
ResourceFactoryService resourceFactoryService =
registry
.get(ResourceFactoryService.class);
KnowledgeBuilderConfiguration kbConf =
knowledgeBuilderFactoryService
.newKnowledgeBuilderConfiguration(null, getClass()
.getClassLoader());
KnowledgeBuilder kbuilder =
knowledgeBuilderFactoryService
.newKnowledgeBuilder(kbConf);
ResourceFactoryService resource =
resourceFactoryService;
kbuilder.add(resource.newFileSystemResource(filePath),
ResourceType.CHANGE_SET);
if (kbuilder.hasErrors()) {
System.out.println(kbuilder.getErrors());
throw new
RuntimeException(kbuilder.getErrors().toString());
}
KnowledgeBaseConfiguration kbaseConf =
knowledgeBaseFactoryService
.newKnowledgeBaseConfiguration(null, getClass()
.getClassLoader());
KnowledgeBase kbase = knowledgeBaseFactoryService
.newKnowledgeBase(kbaseConf);
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty("drools.agent.scanDirectories",
"true");
aconf.setProperty("drools.agent.scanResources",
"true");
aconf.setProperty("drools.agent.newInstance",
"false");
kagent = KnowledgeAgentFactory.newKnowledgeAgent(
"CoreDroolsAgent",kbase,
aconf);
kagent.applyChangeSet(resource.newFileSystemResource(filePath));
Thanks in advance!
Cheers
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6:06 a.m.
Thanks Mark,
Cheers for the info.
I've seen the OSGi bundle zip (and the boot bundle list [1]) but it seemed
to have quite a large amount of dependencies for just drools-core and
drools-compiler. Do you know if all these bundles are required for this
subset? If not would you happen to have the list of what is?
If you don't have this handy I'll send it on so that you have it once I have
figured it out :)
[1]
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/osgi-bundles/or...
- Dave
2010/8/4 Mark Proctor <mproctor(a)codehaus.org>
The set of OSGi bundles dependencies can be used here:
http://www.jboss.org/drools/downloads.html
We test against spring:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/org.drools....
This is our project that builds osgi-bundles and does some testing of
Drools against OSGi:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/
I have done some minimal OSGi docs. OSGI is stil la work in progress for us
and we have only osgi-ified some aspects Drools, although we have done
extensive work on the classloaders to make it fit better.
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
Please do test what we have, maybe help us OSGi-ify other aspects of
drools.
Mark
On 04/08/2010 10:25, David Conde wrote:
Hi,
I'm trying to get drools-core and drools-compiler 5.1 running on spring
dm-server. Does anyone have the minimal list of OSGi bundles as maven
dependencies handy?
Thanks,
Dave
On 25 June 2010 13:59, mmarmol <marcelo.marmol(a)gmail.com> wrote:
>
> Hi, I have managed to install Drools-core and Drools-compiler in my
> Equinox
> osgi environment, I can compile rules and execute them just fine, I was
> just
> wandering how to configure a KnowledgeAgent using
> KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I managed
> to
> configure one but i am not able to reload rules when they change at
> runtime.
> I have started ResourceChangeScannerService and
> ResourceChangeNotifierService, changeset related to the rules file gets
> read
> but no change gets implemented. An idea?
>
>
> Here is the code:
>
> ResourceFactory.getResourceChangeScannerService().start();
> ResourceFactory.getResourceChangeNotifierService().start();
>
> ServiceReference serviceRef = bc
>
> .getServiceReference(ServiceRegistry.class.getName());
> ServiceRegistry registry = (ServiceRegistry)
> bc.getService(serviceRef);
>
> KnowledgeBuilderFactoryService
> knowledgeBuilderFactoryService = registry
> .get(KnowledgeBuilderFactoryService.class);
>
> KnowledgeBaseFactoryService knowledgeBaseFactoryService =
> registry
> .get(KnowledgeBaseFactoryService.class);
> ResourceFactoryService resourceFactoryService = registry
> .get(ResourceFactoryService.class);
>
> KnowledgeBuilderConfiguration kbConf =
> knowledgeBuilderFactoryService
> .newKnowledgeBuilderConfiguration(null,
> getClass()
> .getClassLoader());
>
> KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService
> .newKnowledgeBuilder(kbConf);
> ResourceFactoryService resource = resourceFactoryService;
> kbuilder.add(resource.newFileSystemResource(filePath),
> ResourceType.CHANGE_SET);
>
> if (kbuilder.hasErrors()) {
> System.out.println(kbuilder.getErrors());
> throw new
> RuntimeException(kbuilder.getErrors().toString());
> }
>
> KnowledgeBaseConfiguration kbaseConf =
> knowledgeBaseFactoryService
> .newKnowledgeBaseConfiguration(null,
> getClass()
> .getClassLoader());
>
> KnowledgeBase kbase = knowledgeBaseFactoryService
> .newKnowledgeBase(kbaseConf);
>
> kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
>
> KnowledgeAgentConfiguration aconf =
> KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
> aconf.setProperty("drools.agent.scanDirectories",
"true");
> aconf.setProperty("drools.agent.scanResources",
"true");
> aconf.setProperty("drools.agent.newInstance",
"false");
>
> kagent = KnowledgeAgentFactory.newKnowledgeAgent(
> "CoreDroolsAgent",kbase,
> aconf);
>
> kagent.applyChangeSet(resource.newFileSystemResource(filePath));
>
> Thanks in advance!
>
> Cheers
> --
> View this message in context:
>
http://drools-java-rules-engine.46999.n3.nabble.com/KnowledgeAgent-and-OS...
> Sent from the Drools - User mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
_______________________________________________
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listrules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users
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6:35 a.m.
On 04/08/2010 11:06, David Conde wrote:
Thanks Mark,
Cheers for the info.
I've seen the OSGi bundle zip (and the boot bundle list [1]) but it
seemed to have quite a large amount of dependencies for just
drools-core and drools-compiler. Do you know if all these bundles are
required for this subset? If not would you happen to have the list of
what is?
If you don't have this handy I'll send it on so that you have it once
I have figured it out :)
The spring testing framework makes you list all the
dependencies
manually, which it resolves against that osgi-bundles.zip contents. This
is the file:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/org.drools....
It does contain a lot more than normal, mostly I just kept adding stuff
intil OSGi would resolve and the unit tests pass. It may be possible not
to include things like jaxb (especially if you are on jdk6) and some of
the other peripheral jars. We have used the spring repository and
sometimes the transitivie dependencies are not left optional which means
they are dragged in, and even if we don't us them OSGi will not resolve
without them there. Maybe check out trunk and help us work on this and
improve it?
The problem with OSGi is so few dependencies are are published as OSGi
bundles, which means we have to rely on things like the spring osgi
repository. That automates the building of the bundles and doesn't
always handle optional dependencies that well.
Mark
[1]
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/osgi-bundles/or...
- Dave
2010/8/4 Mark Proctor <mproctor(a)codehaus.org
<mailto:mproctor@codehaus.org>>
The set of OSGi bundles dependencies can be used here:
http://www.jboss.org/drools/downloads.html
We test against spring:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/org.drools....
This is our project that builds osgi-bundles and does some testing
of Drools against OSGi:
http://fisheye.jboss.org/browse/JBossRules/trunk/osgi-bundles/
I have done some minimal OSGi docs. OSGI is stil la work in
progress for us and we have only osgi-ified some aspects Drools,
although we have done extensive work on the classloaders to make
it fit better.
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
Please do test what we have, maybe help us OSGi-ify other aspects
of drools.
Mark
On 04/08/2010 10:25, David Conde wrote:
> Hi,
>
> I'm trying to get drools-core and drools-compiler 5.1 running on
> spring dm-server. Does anyone have the minimal list of OSGi
> bundles as maven dependencies handy?
>
> Thanks,
> Dave
>
> On 25 June 2010 13:59, mmarmol <marcelo.marmol(a)gmail.com
> <mailto:marcelo.marmol@gmail.com>> wrote:
>
>
> Hi, I have managed to install Drools-core and Drools-compiler
> in my Equinox
> osgi environment, I can compile rules and execute them just
> fine, I was just
> wandering how to configure a KnowledgeAgent using
> KnowledgeBuilderFactoryService and
> KnowledgeBaseFactoryService. I managed to
> configure one but i am not able to reload rules when they
> change at runtime.
> I have started ResourceChangeScannerService and
> ResourceChangeNotifierService, changeset related to the rules
> file gets read
> but no change gets implemented. An idea?
>
>
> Here is the code:
>
>
> ResourceFactory.getResourceChangeScannerService().start();
>
> ResourceFactory.getResourceChangeNotifierService().start();
>
> ServiceReference serviceRef = bc
>
> .getServiceReference(ServiceRegistry.class.getName());
> ServiceRegistry registry = (ServiceRegistry)
> bc.getService(serviceRef);
>
> KnowledgeBuilderFactoryService
> knowledgeBuilderFactoryService = registry
>
> .get(KnowledgeBuilderFactoryService.class);
>
> KnowledgeBaseFactoryService
> knowledgeBaseFactoryService = registry
>
> .get(KnowledgeBaseFactoryService.class);
> ResourceFactoryService resourceFactoryService
> = registry
>
> .get(ResourceFactoryService.class);
>
> KnowledgeBuilderConfiguration kbConf =
> knowledgeBuilderFactoryService
>
> .newKnowledgeBuilderConfiguration(null, getClass()
>
> .getClassLoader());
>
> KnowledgeBuilder kbuilder =
> knowledgeBuilderFactoryService
> .newKnowledgeBuilder(kbConf);
> ResourceFactoryService resource =
> resourceFactoryService;
>
> kbuilder.add(resource.newFileSystemResource(filePath),
> ResourceType.CHANGE_SET);
>
> if (kbuilder.hasErrors()) {
> System.out.println(kbuilder.getErrors());
> throw new
> RuntimeException(kbuilder.getErrors().toString());
> }
>
> KnowledgeBaseConfiguration kbaseConf =
> knowledgeBaseFactoryService
>
> .newKnowledgeBaseConfiguration(null, getClass()
>
> .getClassLoader());
>
> KnowledgeBase kbase = knowledgeBaseFactoryService
> .newKnowledgeBase(kbaseConf);
>
> kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
>
> KnowledgeAgentConfiguration aconf =
>
> KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
>
> aconf.setProperty("drools.agent.scanDirectories",
"true");
>
> aconf.setProperty("drools.agent.scanResources",
"true");
> aconf.setProperty("drools.agent.newInstance",
> "false");
>
> kagent =
> KnowledgeAgentFactory.newKnowledgeAgent( "CoreDroolsAgent",kbase,
> aconf);
>
> kagent.applyChangeSet(resource.newFileSystemResource(filePath));
>
> Thanks in advance!
>
> Cheers
> --
> View this message in context:
>
http://drools-java-rules-engine.46999.n3.nabble.com/KnowledgeAgent-and-OS...
> Sent from the Drools - User mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org>
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org>
> https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
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https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
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7 comments
4 participants
participants (4)
-
David Conde -
Esteban Aliverti -
Mark Proctor -
mmarmol