2:37 a.m.
Hi,
I am new to Drools in general so please excuse my noobness with some of the
concepts. I am in the process of creating a maintenance scheduling system.
As Geoffrey suggested, I have based my application heavily on the curriculum
course example included in the solver (planner) examples. I have created
most of the classes used by the example and will be implementing my gui.
I use an XmlSolverConfigurer to read the configuration from xml. The solver
config xml path is correct as I get another exception due to the file not
being found when I change the path. When the solver tries to load the xml
configuration the following exception occurs:
Exception in thread "AWT-EventQueue-0"
com.thoughtworks.xstream.converters.ConversionException: environmentMode :
environmentMode : environmentMode : environmentMode
---- Debugging information ----
message : environmentMode : environmentMode
cause-exception :
com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message : environmentMode : environmentMode
class :
org.drools.solver.config.localsearch.LocalSearchSolverConfig
required-type :
org.drools.solver.config.localsearch.LocalSearchSolverConfig
line number : 12
-------------------------------
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:89)
at
com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137)
at
com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:923)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:909)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:853)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:68)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:59)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:52)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.createSolver(ImmsGui.java:95)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.createSolutionBusiness(ImmsGui.java:103)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.btnSolveActionPerformed(ImmsGui.java:76)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.access$000(ImmsGui.java:23)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui$1.actionPerformed(ImmsGui.java:50)
at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: com.thoughtworks.xstream.mapper.CannotResolveClassException:
environmentMode : environmentMode
at
com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:68)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:71)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:86)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:96)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:52)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.determineType(AbstractReflectionConverter.java:347)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:208)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:162)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
... 41 more
Here is the contents of my XML configuration file:
<?xml version="1.0" encoding="UTF-8"?>
<localSearchSolver>
<environmentMode>REPRODUCIBLE</environmentMode>
<scoreDrl>/za/co/rgems/projects/imms/drl/immsRules.drl</scoreDrl>
<scoreDefinition>
<scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>
</scoreDefinition>
<termination>
<scoreAttained>0hard/-5000soft</scoreAttained>
</termination>
<startingSolutionInitializerClass>za.co.rgems.projects.imms.solution.initialiser.ImmsStartingSolutionInitialiser</startingSolutionInitializerClass>
<finish>
<maximumSecondsSpend>300</maximumSecondsSpend>
</finish>
<selector>
<selector>
<topSize>10</topSize>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceSlotMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceTaskSwitchFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceTechnicianChangeMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MotorChangeMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
</selector>
<accepter>
<completePropertyTabuSize>10</completePropertyTabuSize>
<completeSolutionTabuSize>1500</completeSolutionTabuSize>
</accepter>
<forager>
<foragerType>MAX_SCORE_OF_ALL</foragerType>
</forager>
</localSearchSolver>
I am not sure why this occurs and I have also searched the forums/mailing
list to no avail. I have been through the documentation on the configuration
file as well as several of the example applications' config files, but fail
to see what is the cause.
Thank you in advance!
Regards,
De Ville Weppenaar
--
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11:52 a.m.
The environmentMode property is new on trunk.
It is not part of drools-planner (drools-solver at the time) 5.0.1 or
5.1.0.M1.
It will be part of 5.2.0.M2.
Note that a drools-core/compiler M2 snapshot is unstable at the moment
(that's why they call it trunk :).
What you can do - in theory - is combine drools-core/compiler 5.0.1 or
5.1.0.M1 with drools-planner 5.1.0.M2-SNAPSHOT (that's pretty stable atm
even if it's trunk).
With kind regards,
Geoffrey De Smet
dweppenaar schreef:
Hi,
I am new to Drools in general so please excuse my noobness with some of the
concepts. I am in the process of creating a maintenance scheduling system.
As Geoffrey suggested, I have based my application heavily on the curriculum
course example included in the solver (planner) examples. I have created
most of the classes used by the example and will be implementing my gui.
I use an XmlSolverConfigurer to read the configuration from xml. The solver
config xml path is correct as I get another exception due to the file not
being found when I change the path. When the solver tries to load the xml
configuration the following exception occurs:
Exception in thread "AWT-EventQueue-0"
com.thoughtworks.xstream.converters.ConversionException: environmentMode :
environmentMode : environmentMode : environmentMode
---- Debugging information ----
message : environmentMode : environmentMode
cause-exception :
com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message : environmentMode : environmentMode
class :
org.drools.solver.config.localsearch.LocalSearchSolverConfig
required-type :
org.drools.solver.config.localsearch.LocalSearchSolverConfig
line number : 12
-------------------------------
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:89)
at
com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137)
at
com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:923)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:909)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:853)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:68)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:59)
at
org.drools.solver.config.XmlSolverConfigurer.configure(XmlSolverConfigurer.java:52)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.createSolver(ImmsGui.java:95)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.createSolutionBusiness(ImmsGui.java:103)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.btnSolveActionPerformed(ImmsGui.java:76)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui.access$000(ImmsGui.java:23)
at
za.co.rgems.projects.imms.swing.gui.ImmsGui$1.actionPerformed(ImmsGui.java:50)
at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: com.thoughtworks.xstream.mapper.CannotResolveClassException:
environmentMode : environmentMode
at
com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:68)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:71)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:86)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:96)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:38)
at
com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:52)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.determineType(AbstractReflectionConverter.java:347)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:208)
at
com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:162)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
... 41 more
Here is the contents of my XML configuration file:
<?xml version="1.0" encoding="UTF-8"?>
<localSearchSolver>
<environmentMode>REPRODUCIBLE</environmentMode>
<scoreDrl>/za/co/rgems/projects/imms/drl/immsRules.drl</scoreDrl>
<scoreDefinition>
<scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>
</scoreDefinition>
<termination>
<scoreAttained>0hard/-5000soft</scoreAttained>
</termination>
<startingSolutionInitializerClass>za.co.rgems.projects.imms.solution.initialiser.ImmsStartingSolutionInitialiser</startingSolutionInitializerClass>
<finish>
<maximumSecondsSpend>300</maximumSecondsSpend>
</finish>
<selector>
<selector>
<topSize>10</topSize>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceSlotMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceTaskSwitchFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MaintenanceTechnicianChangeMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
<selector>
<moveFactoryClass>za.co.rgems.projects.imms.move.factory.MotorChangeMoveFactory</moveFactoryClass>
<relativeSelection>0.002</relativeSelection>
</selector>
</selector>
<accepter>
<completePropertyTabuSize>10</completePropertyTabuSize>
<completeSolutionTabuSize>1500</completeSolutionTabuSize>
</accepter>
<forager>
<foragerType>MAX_SCORE_OF_ALL</foragerType>
</forager>
</localSearchSolver>
I am not sure why this occurs and I have also searched the forums/mailing
list to no avail. I have been through the documentation on the configuration
file as well as several of the example applications' config files, but fail
to see what is the cause.
Thank you in advance!
Regards,
De Ville Weppenaar
3:39 a.m.
Thank you for the reply Geoffrey. As far as I know I am only using the 5.0.1
versions of the binaries. Here is a list of the jars I included in the
project:
http://n3.nabble.com/file/n715539/jars_in_project.jpg
I have removed all the jars and re-added (hopefully) only the required ones
in an attempt to isolate where I went wrong. Unfortunately I still get the
exact same exception on the createSolver method. I have also removed the
reference to environmentMode in the xml configuation file, but to no avail.
Regards,
De Ville
--
View this message in context:
http://n3.nabble.com/Drools-Planner-Exception-on-createSolver-method-tp71...
Sent from the Drools - User mailing list archive at Nabble.com.
1:05 p.m.
Unfortunately I still get the
> exact same exception on the createSolver method.
I seriously doubt that you get the exact same exception that it can't
parse environmentMode as you say you've removed the environmentMode
reference in the xml configuration :)
It must be a different exception that xstream parsing is throwing at
you, which just looks the same on the surface. Try reading it :)
If I understand correctly, you started from a 5.1.0.M2 example and used
the 5.0.1 binaries. Since M2 uses features not yet existing in 5.0.1,
its normal that you get errors. On top of that, M2 isn't backwards
compatible (see the UpgradingRecipe.txt).
So start from the 5.0.1 version of curriculum course.
Or instead combine drools-planner 5.1.0.M2-SNAPSHOT with
drools-core/compiler 5.0.1.
With kind regards,
Geoffrey De Smet
dweppenaar schreef:
Thank you for the reply Geoffrey. As far as I know I am only using
the 5.0.1
versions of the binaries. Here is a list of the jars I included in the
project:
http://n3.nabble.com/file/n715539/jars_in_project.jpg
I have removed all the jars and re-added (hopefully) only the required ones
in an attempt to isolate where I went wrong. Unfortunately I still get the
exact same exception on the createSolver method. I have also removed the
reference to environmentMode in the xml configuation file, but to no avail.
Regards,
De Ville
12:53 a.m.
Thank you Geoffrey! You are absolutely right. After re-adding the jar's I
executed the application once and I got the same exception, so I then
removed the "environmentMode" parameter from the configuration file. I tried
executing it again and didn't notice the error is slightly different.
Thanks again!
--
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http://n3.nabble.com/Drools-Planner-Exception-on-createSolver-method-tp71...
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5344
days inactive
5346
days old
4 comments
2 participants
participants (2)
-
dweppenaar -
Geoffrey De Smet