A design decision to use Guvnor
by Radhika Inugala
My requirement is as below:
We need to give end users to provide us with some conditions,
One of example rule would be:
They can say something like when the client id is XYZ(could be a complex
condition here) then consider I need to pay taxes in AB,CD states.
As we have different end users, we can have these rules per end user.
And when we get a web service call, based on the end user we need to pull
all these rules and then apply the rules(basically all these rules do a
transformation on the incoming request)
I need to a design for this requirement:
At first I thought I can build a UI and db to save all these rules.
But I realised that it would really take a long time.
I found Guvnor as a web application, with which we can provide a UI and
these rules will be saved in db.
The confusion I have now is:
Can I tweak the Guvnor source code(locally) to make these rules saved per
end user?
Is it doable?
Any suggestions, for the design are welcome.
12 years, 8 months
Guvnor Vs Mvel
by Radhika Inugala
Hi All,
I am still evaluating the technology to use in the following use case:
There is an input object and an output object.
These objects are complex in the sense that they have collection of objects
inside.
Need to give a feature with which user can tell that when the input object
contains certain values(this might be a complex expression) then set a
value in certain field of output object.
We need to build a UI and an ability to store the rules in db and apply
them against the incoming objects.
At first, I thought we can use Guvnor, but it is a lot more than what we
need.
We do not need a rule engine exactly, but a way to evaluate the expression.
So I went to see using Mvel as a tool.
Now I see the difficulty in converting the UI specific info to the Mvel
expression.
The expressions are becoming so complex.
Is there any way I can say some thing like a drools rule which can be
converted into a Mvel expression before evaluation?
Let me know, if I need to be more clear.
12 years, 8 months
Guvnor under Jetty?
by ems24
Hi all,
I've been trying to deploy Guvnor 5.5.0 under Jetty 8, but I'm running into
the following stack trace on startup:
ERROR 27-06 04:13:58,475 (JettyPost72Container.java:initialize:72)
Unable to create JettyWeldInjector. CDI injection will not be available in
Servlets, Filters or Listeners
java.lang.IllegalArgumentException: Cannot load class for
org.jboss.weld.environment.jetty.WeldDecorator
at
org.jboss.weld.environment.servlet.util.Reflections.classForName(Reflections.java:58)
at
org.jboss.weld.environment.jetty.JettyPost72Container.initialize(JettyPost72Container.java:66)
at
org.jboss.weld.environment.servlet.Listener.contextInitialized(Listener.java:162)
at
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:746)
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:238)
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1240)
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:689)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:482)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:39)
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:186)
at
org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:494)
at
org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:141)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:145)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:56)
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:615)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:540)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:403)
at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:337)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:121)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:555)
at
org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:230)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.util.component.AggregateLifeCycle.doStart(AggregateLifeCycle.java:81)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:58)
at
org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:96)
at org.eclipse.jetty.server.Server.doStart(Server.java:281)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1259)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1182)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.jetty.start.Main.invokeMain(Main.java:473)
at org.eclipse.jetty.start.Main.start(Main.java:615)
at org.eclipse.jetty.start.Main.main(Main.java:96)
Caused by: java.lang.NoClassDefFoundError:
org/eclipse/jetty/servlet/ServletContextHandler$Decorator
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:421)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
at
org.jboss.weld.environment.servlet.util.Reflections.classForName(Reflections.java:51)
... 39 more
Caused by: java.lang.ClassNotFoundException:
org.eclipse.jetty.servlet.ServletContextHandler$Decorator
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:421)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
... 51 more
ERROR 27-06 04:14:02,198 (JettyPost72Container.java:initialize:72)
Unable to create JettyWeldInjector. CDI injection will not be available in
Servlets, Filters or Listeners
java.lang.IllegalArgumentException: Cannot load class for
org.jboss.weld.environment.jetty.WeldDecorator
at
org.jboss.weld.environment.servlet.util.Reflections.classForName(Reflections.java:58)
at
org.jboss.weld.environment.jetty.JettyPost72Container.initialize(JettyPost72Container.java:66)
at
org.jboss.weld.environment.servlet.Listener.contextInitialized(Listener.java:162)
at
org.drools.guvnor.server.repository.SafeWeldListener.contextInitialized(SafeWeldListener.java:54)
at
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:746)
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:238)
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1240)
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:689)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:482)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:39)
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:186)
at
org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:494)
at
org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:141)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:145)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:56)
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:615)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:540)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:403)
at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:337)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:121)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:555)
at
org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:230)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.eclipse.jetty.util.component.AggregateLifeCycle.doStart(AggregateLifeCycle.java:81)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:58)
at
org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:96)
at org.eclipse.jetty.server.Server.doStart(Server.java:281)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1259)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1182)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.jetty.start.Main.invokeMain(Main.java:473)
at org.eclipse.jetty.start.Main.start(Main.java:615)
at org.eclipse.jetty.start.Main.main(Main.java:96)
Caused by: java.lang.NoClassDefFoundError:
org/eclipse/jetty/servlet/ServletContextHandler$Decorator
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:421)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
at
org.jboss.weld.environment.servlet.util.Reflections.classForName(Reflections.java:51)
... 40 more
Caused by: java.lang.ClassNotFoundException:
org.eclipse.jetty.servlet.ServletContextHandler$Decorator
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:421)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
... 52 more
Here's what I've tried so far to fix this, based on Googling around and
reading through other folks' attempts to deploy apps relying on WELD under
Jetty:
1) adding the following to Guvnor's web.xml:
<listener>
<listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
</listener>
2) creating jetty-env.xml inside Guvnor's WEB-INF with these contents:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD
Configure//EN"
"http://jetty.mortbay.org/configure.dtd">
<Configure id="webAppCtx" class="org.mortbay.jetty.webapp.WebAppContext">
<New id="BeanManager" class="org.mortbay.jetty.plus.naming.Resource">
<Arg>
<Ref id="webAppCtx"/>
</Arg>
<Arg>BeanManager</Arg>
<Arg>
<New class="javax.naming.Reference">
<Arg>javax.enterprise.inject.spi.BeanManager</Arg>
<Arg>org.jboss.weld.resources.ManagerObjectFactory</Arg>
<Arg/>
</New>
</Arg>
</New>
</Configure>
The app does technically deploy with these additions, but I get the stack
trace above and the Guvnor UI just shows a "fatal error" message. Any hints
on what I need to do?
Thanks
-- Evan
--
View this message in context: http://drools.46999.n3.nabble.com/Guvnor-under-Jetty-tp4024823.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
12 years, 8 months
Timers and fireAllRules
by Wolfgang Laun
A rule controlled by a timer becomes active when it matches, and
once for each individual match. Its consequence is executed
repeatedly, according to the timer's settings. This stops as soon
as the condition doesn't match any more.
Consequences are executed even after control returns from a call
to fireUntilHalt(). Moreover, the Engine remains reactive to any
changes made to the Working Memory. For instance, removing a fact
that was involved in triggering the timer rule's execution causes
the repeated execution to terminate, or inserting a fact so that
some rule matches will cause that rule to fire. But the Engine is
not continually active, only after a rule fires, for whatever
reason. Thus, reactions to an insertion done asynchronously will
not happen until the next execution of a timer-controlled rule.
Disposing a session puts an end to all timer activity.
-W
12 years, 8 months
JBoss Drools evaluation
by Fatma Zaheer
Dear Rules users,
Can anyone of you verify the information in the table mentioned below on JBoss Drools ( business rules management systems)?
Thanks in advance,
Evaluation Criteria JBoss Drools
Software Platform Java
Facilitate for rules testing Yes
Level of language of rules High
Type of target organization All
Coding of rules required Yes
Business analysts control business logic Yes
Rules based web application Yes
On Cloud n.a.
Forward/Backward chaining Forward chaining
Uses Reto-base or constraint base rules engine Reto-Base
Graphical representation of rules Yes
12 years, 8 months
Upgrading to Drools 6.0 questions (General)
by MaverickDrools
Hi,
We are trying to evaluate what it takes to move from drools 5.4 to drools
6.0
There are some questions that I'd appreciate if someone clarifies after I've
updated the code to use KieContainer instead of KnowledgeBase and
successfully upgraded to drools 6.0.0-Beta3
1. Resolution of the imports:
In previous versions (5.3/5.4) we were able to give import abc.def.* which
would import all the model classes required by a .drl file, this doesn't
seem to be valid anymore. Now we have to give a specific class name in every
import statement so the 6.0 compiler is still able to use it. (eg) import
abc.def.SomeCalss.
Is that a change that was done to the compiler to resolve the imports, or is
it just me?
2. Setting null values:
Some rule in one of my drl files was of the form -
delare SomeDate
date : java.util.Date
end
rule "do something"
when
.
.
then
insertLogical (new SomeDate(null));
end
I'm assuming the compiler is calling the java.util.Date constructor which
shouldn't allow you to create a date with null being passed to the
constructor. This was ok with the previous versions (upto 5.4) and now
throws a NPE in 5.5 and 6.0. I'd think this should actually be throwing an
IllegalArgumentException with Date but throws a NPE instead. Is that true?
Is the drools compiler now catching that llegalArgumentException and
throwing a org.kie.api.runtime.rule.ConsequenceException due to null Date?
3. KieContainerImpl not serialized:
>From KnowledgeBase javadoc - Creating the KnowledgeBase can be heavy, where
as session creation is very light, so it is recommended that KnowledgeBases
be cached where possible to allow for repeated session creation.
We could achieve this using the EhCache and caching Knowledgebase objects.
We cannot do the same with KieContainer since it throws a
SerializationException with KieContainerImpl is not Serializable. So seems
like we cannot cache these KieCaontainer objects? Or is there some other way
to do that?
4. Release date for 6.0-Final:
What does the roadmap look like for the 6.0-Final?
Thanks.
--
View this message in context: http://drools.46999.n3.nabble.com/Upgrading-to-Drools-6-0-questions-Gener...
Sent from the Drools: User forum mailing list archive at Nabble.com.
12 years, 8 months
Guvnor5.5 not getting deployed in JBoss 5. Error on Deployment.
by Ankit Murarka
I Downloaded Guvnor5.5 and tried deploying the war in JBoss 5.
Got the following error on deployment: Hence the guvnor war is not
getting deployed properly on the JBoss server.
Googled it and found https://issues.jboss.org/browse/GUVNOR-1975 issue
raised. Any fix/workaround available as it is a complete blocker and not
allowing me to deploy the war.
/Exception: /
java.lang.RuntimeException: mapped-name is required for BeanManager of
deployment guvnor-5.5.0.Final-jboss-eap-5.1.war
at
org.jboss.web.tomcat.service.injection.WebResourceHandler.loadXmlResourceEnvRefs(WebResourceHandler.java:287)
at
org.jboss.web.tomcat.service.injection.WebResourceHandler.loadXml(WebResourceHandler.java:325)
at
org.jboss.web.tomcat.service.TomcatInjectionContainer.processMetadata(TomcatInjectionContainer.java:564)
at
org.jboss.web.tomcat.service.WebCtxLoader.start(WebCtxLoader.java:158)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4272)
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:312)
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:144)
at
org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
at
org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at
org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy36.start(Unknown Source)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at
org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextA
at
org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:7
at
org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.system.ServiceController.doChange(ServiceController.java:688)
at
org.jboss.system.ServiceController.start(ServiceController.java:460)
at
org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:163)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
at
org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.
at
org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at
org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
at
org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205)
at
org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405)
at org.jboss.Main.boot(Main.java:209)
at org.jboss.Main$1.run(Main.java:547)
at java.lang.Thread.run(Thread.java:662)
19:59:47,251 ERROR [StandardContext] Context
[/guvnor-5.5.0.Final-jboss-eap-5.1] startup failed due to previous errors
19:59:47,298 ERROR [AbstractKernelController] Error installing to Start:
name=jboss.web.deployment:war=/guvnor-5.5.0.Fina
org.jboss.deployers.spi.DeploymentException: URL
file:/D:/rtSDP_RSP/server/rsp1/tmp/a1dg2h-g9earj-hirh2jk7-1-hirhb9of-1l/
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:333)
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:144)
at
org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
at
org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at
org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy36.start(Unknown Source)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at
org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextA
at
org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:7
at
org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.system.ServiceController.doChange(ServiceController.java:688)
at
org.jboss.system.ServiceController.start(ServiceController.java:460)
at
org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:163)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
at
org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.
at
org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at
org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
at
org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205)
at
org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405)
at org.jboss.Main.boot(Main.java:209)
at org.jboss.Main$1.run(Main.java:547)
at java.lang.Thread.run(Thread.java:662)
19:59:47,298 ERROR [AbstractKernelController] Error installing to Real:
name=vfszip:/D:/JBossFolderName/server/ClusterName/deploy/guvn
org.jboss.deployers.spi.DeploymentException: URL
file:/D:/JBossFolderName_RSP/server/ClusterName/tmp/a1dg2h-g9earj-hirh2jk7-1-hirhb9of-1l/
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:333)
at
org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:144)
at
org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
at
org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at
org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy36.start(Unknown Source)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at
org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at
org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextA
at
org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:7
at
org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.system.ServiceController.doChange(ServiceController.java:688)
at
org.jboss.system.ServiceController.start(ServiceController.java:460)
at
org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:163)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99)
at
org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
at
org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.
at
org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at
org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
at
org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at
org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
at
org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
at
org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at
org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
at
org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304)
at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205)
at
org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405)
at org.jboss.Main.boot(Main.java:209)
at org.jboss.Main$1.run(Main.java:547)
at java.lang.Thread.run(Thread.java:662)
--
Regards
Ankit
12 years, 8 months
Modeling Cargo Pickup in Optaplanner
by Andrew Varner
I'm looking to find the best combination of items for predetermined load plans using Optaplanner. It'd pick the best items out of an inventory (collection of cargo) to fill the load plan.
For example, if a truck shows up at the warehouse, it might carry two sofas and a desk (Example 1). It could also carry five chairs and an end table.
It seems like I could reduce the problem space significantly by breaking the items into classes versus coding the load plans into a hard constraint.
E.g.
//Example 1
class LoadPlan1 {
Sofa cargo1;
Sofa cargo2;
Desk cargo3;
...
}
versus a more generic approach...
// Example 2
class Cargo {
String type; //"sofa", "desk"
// load is nullable
Load load;
...
}
Am I on the right path? I think I'd need hard constraints for Example 1 to make sure that cargo1 and cargo2 aren't the same sofa.
Thanks,
Drew
12 years, 8 months
NullPointerException using 2 sliding windows and accumulate functions.
by nw1005
Hello everybody,
currently I'm facing a problem using sliding windows and accumulate feature
in Drools 5.5.0.Final.
I'm using two sliding windows (window:length) with different lengths on the
same event in the same rule.
It seems that the shorter window retracts events which are not fitting in it
any more,
and accumulate function over the bigger window tries to access the retracted
event with a NullPointerException.
declare Property
@role(event)
@timestamp(measuretime)
end
rule "Buggy rule"
when
Number(doubleValue > 10) from accumulate(Property(propertyname ==
"PROPERTY1", val16: propertyvalue) over window:length(2)
from entry-point "123" , max(val16))
Number(doubleValue < 50) from accumulate(Property(propertyname ==
"PROPERTY1", val20: propertyvalue) over window:length(5)
from entry-point "123" , max(val20))
then
System.out.println("Rule Match");
end
entryPoint.insert(new Property("PROPERTY1", 20));
session.fireAllRules();
entryPoint.insert(new Property("PROPERTY1", 20));
session.fireAllRules();
entryPoint.insert(new Property("PROPERTY1", 20));
session.fireAllRules();
entryPoint.insert(new Property("PROPERTY1", 2));
session.fireAllRules();
entryPoint.insert(new Property("PROPERTY1", 2));
session.fireAllRules();
entryPoint.insert(new Property("PROPERTY1", 2));
It happens on the last insert.
java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:1050)
at
org.drools.reteoo.AccumulateNode.modifyLeftTuple(AccumulateNode.java:345)
at
org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateModifyChildLeftTuple(SingleLeftTupleSinkAdapter.java:259)
at
org.drools.reteoo.AccumulateNode.evaluateResultConstraints(AccumulateNode.java:676)
at
org.drools.reteoo.ReteooWorkingMemory$EvaluateResultConstraints.execute(ReteooWorkingMemory.java:590)
at
org.drools.common.PropagationContextImpl.evaluateActionQueue(PropagationContextImpl.java:350)
at
org.drools.rule.SlidingLengthWindow.assertFact(SlidingLengthWindow.java:119)
at org.drools.rule.BehaviorManager.assertFact(BehaviorManager.java:94)
at org.drools.reteoo.WindowNode.assertObject(WindowNode.java:167)
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:127)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:55)
Is it a bug, or am I doing something completely wrong?
--
View this message in context: http://drools.46999.n3.nabble.com/NullPointerException-using-2-sliding-wi...
Sent from the Drools: User forum mailing list archive at Nabble.com.
12 years, 8 months
Unable to resolve class x for identifier y
by Bojan Janisch
Hey everyone,
I'm using Drools in a multithreaded environment where multiple KnowledgeBuilder and StatefulKnowledgeSessions are created parallel. Until now everything runs smooth, but suddenly I got this error:
Exception in thread "ECJ Evaluation Thread 5" org.drools.RuntimeDroolsException: Unable to resolve class 'de.fraunhofer.scai.bio.extraction.types.text.NormalizedNamedEntity' for identifier 'this
at org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:231)
at org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
at org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
at org.drools.rule.constraint.MvelConstraint.isAllowedCachedLeft(MvelConstraint.java:169)
at org.drools.common.SingleBetaConstraints.isAllowedCachedLeft(SingleBetaConstraints.java:125)
at org.drools.reteoo.JoinNode.propagateFromLeft(JoinNode.java:105)
at org.drools.reteoo.JoinNode.assertLeftTuple(JoinNode.java:95)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:196)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:71)
at org.drools.reteoo.JoinNode.propagateFromRight(JoinNode.java:159)
at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:148)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141)
at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:847)
at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:269)
at rulevolution.RulEvolution.runDrools(RulEvolution.java:310)
at rulevolution.RulEvolution.evaluate(RulEvolution.java:161)
at ec.simple.SimpleEvaluator.evalPopChunk(SimpleEvaluator.java:259)
at ec.simple.SimpleEvaluator$SimpleEvaluatorThreadCG.run(SimpleEvaluator.java:341)
at ec.util.ThreadPool$PoolThread.run(ThreadPool.java:57)
I don't know why it happened, my program already ran for about 15 minutes. Could someone explain me what could cause such an error? I didn't find much information about it in the internet.
Thanks and greetings
Bojan
12 years, 8 months
