[rules-users] Steps for uploading model jar and decision table in guvnor
Swapnil Sawant
Swapnil.Sawant at lntinfotech.com
Sat Aug 21 07:45:32 EDT 2010
Hi,
PFA the model jar and decision table that I have created .
myTest.jar contains my model class 'AmountPojo' and currently I have written only one PF rule using this 'AmountPojo' class
I have done following things successfully on guvnor GUI :
- uploading of model jar in a package(named Test)
- uploading decision table xls in same package
- 'save and validate configuration' and 'building package'after above steps
- Creating test scenario for testing that my rule is working fine
Now, I wish to utilize this package in my application through changeset.xml. For this, I wrote something like :
<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='https://ofbiz.apache.org:8443/drools-guvnor/org.drools.guvnor.Guvnor/package/Test/LATEST.drl' type='DRL' />
</add>
</change-set>
Also, in my code I have created knowledge agent like dis :
kagent = KnowledgeAgentFactory.newKnowledgeAgent( "MyRuleAgent" );
String changesetUrl = "file:"+currentWorkingDirectory+"/framework/drools/config/changeset.xml";
kagent.applyChangeSet( ResourceFactory.newUrlResource( changesetUrl ) );
Using this 'kagent' I have created knowledge base like dis :
if(kbase==null){
kbase = kagent.getKnowledgeBase();
}
When kagent.applychaneset line executes, it throws following error :
[Error: Failed to compile: 4 compilation error(s):
- (1,9) unqualified type in strict mode for: amtEntity
- (1,9) unqualified type in strict mode for: amtEntity
- (1,15) unqualified type in strict mode for: basic
- (1,40) unable to resolve method using strict-mode: java.lang.Object.setHra(java.lang.Object)]
[Near : {... Unknown ....}]
^
[Line: 1, Column: 0]
at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:78)
at org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:365)
at org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:288)
at org.drools.base.mvel.MVELConsequence.compile(MVELConsequence.java:49)
at org.drools.rule.builder.dialect.mvel.MVELConsequenceBuilder.build(MVELConsequenceBuilder.java:107)
at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:86)
at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1168)
at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:654)
at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:291)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:489)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)
at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:387)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:121)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:110)
at org.ofbiz.drools.event.drool.RuleIntegrate.createKnowledgeBase(RuleIntegrate.java:46)
at org.ofbiz.drools.event.drool.RuleIntegrate.createWorkingMemory(RuleIntegrate.java:29)
at org.ofbiz.payroll.DroolsRule.callRuleJava(DroolsRule.java:42)
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.ofbiz.service.engine.StandardJavaEngine.serviceInvoker(StandardJavaEngine.java:100)
at org.ofbiz.service.engine.StandardJavaEngine.runSync(StandardJavaEngine.java:57)
at org.ofbiz.service.ModelServiceReader$GenericInvokerImpl.runSync(ModelServiceReader.java:761)
at _$gen.file_58$.D_58$.Swapnil_95$Data.ofbiz_95$trunk_95$06_95$22.applications.payroll.servicedef.services_46$xml_3
at org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:399)
at org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:226)
at org.ofbiz.service.GenericDispatcher.runSync(GenericDispatcher.java:165)
at org.ofbiz.webapp.event.ServiceEventHandler.invoke(ServiceEventHandler.java:336)
at org.ofbiz.webapp.control.RequestHandler.runEvent(RequestHandler.java:633)
at org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:379)
at org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:224)
at org.ofbiz.webapp.control.ControlServlet.doPost(ControlServlet.java:87)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:271)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
[2010:08:233 16:08:734:debug] KnowledgeAgent building resource=[UrlResource path='https://ofbiz.apache.org:8443/drools-guvno
[2010:08:233 16:08:359:debug] KnowledgeAgent has KnowledgeBuilder errors object=Unable to resolve ObjectType 'AmountPojo' :
Unable to resolve ObjectType 'AmountPojo' : [Rule name='HRA rule']
Unable to build expression for 'consequence': Failed to compile: 4 compilation error(s):
- (1,9) unqualified type in strict mode for: amtEntity
- (1,9) unqualified type in strict mode for: amtEntity
- (1,15) unqualified type in strict mode for: basic
- (1,40) unable to resolve method using strict-mode: java.lang.Object.setHra(java.lang.Object) ' amtEntity.setHra( am
' : [Rule name='HRA rule']
Error importing : 'com.sample.AmountPojo'Error importing : 'com.sample.PFRules'Error importing : 'com.sample.SpreadsheetComp
Test/Rule_PF_Rules_11_0.java (2:22) : Only a type can be imported. com.sample.SpreadsheetCompiler resolves to a pack
Test/Rule_PF_Rules_11_0.java (2:60) : Only a type can be imported. com.sample.AmountPojo resolves to a package
Test/Rule_PF_Rules_11_0.java (2:89) : Only a type can be imported. com.sample.PFRules resolves to a package
Test/Rule_PF_Rules_11_0.java (7:371) : a cannot be resolved
Test/Rule_PF_Rules_11_0.java (7:379) : a cannot be resolved
Test/Rule_PF_Rules_11_0.java (8:460) : a cannot be resolved
It seems that it is not able to recognize 'AmountPojo' class.thereby considering it as 'Object' type and applying setHra() on it.
Any idea why this is occuring ? How to communicate about 'AmountPojo' Type in code ?
Also,
After this, I wanted to know the steps for 'inserting fact type object for AmountPojo' in the session created.
For this I read in docs that use following lines of code :
// Retrieve the generated fact type
FactType cheeseFact = ruleBase.getFactType( "org.drools.generatedbeans.Cheese" );
// Create a new Fact instance
Object cheese = cheeseFact.newInstance();
cheeseFact.set( cheese,
"type",
"stilton" );
But, I didnt find any method like KnowledgeBase.getFactType(String fullyQualifiedfactTypePath) . There is only one KnowledgeBase.getFactType(String pckname,String factTypeName) method in it
Please let me the know the right way of achieving this .
Thanks,
Swapnil Sawant
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