Hi guys, I'm very new to Guvnor and Drools and all these exciting tools. I'm working my way through the example that I found here: http://www.jboss.org/feeds/post/jboss_drools_how_to_tuning_guvnor_part_1 and everything was just fine and dandy until I had to run the java code! Unfortunately, I get the following output: RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring with newInstance=false, secondsToRefresh=-1 RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring package provider : URLScanner monitoring URLs: http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/myNe... RuleAgent(default) EXCEPTION (Tue Feb 24 17:20:58 GMT 2009): null. Stack trace should follow. java.io.OptionalDataException at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:59) at org.drools.agent.URLScanner.readPackage(URLScanner.java:138) at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:110) at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298) at org.drools.agent.RuleAgent.configure(RuleAgent.java:284) at org.drools.agent.RuleAgent.init(RuleAgent.java:208) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:216) at com.ioko.GuvnorTest.main(GuvnorTest.java:27) com.ioko.Driver But I have no idea why!!!! Can any of you guys please please please help a newbie? Many thanks, Adrian M Bell

Diablo_UK wrote: > Just done a little bit more digging and it seems that the exception is > occuring when the package is attempted to be read. > > If I point a browser at the url, I get the "opening package" dialog from > the > browser. Does this mean that Guvnor hasn't generated the package > correctly? > > Anyone got *any* ideas? > Rules Dev is for the development of drools, not for questions about the use of drools. Please ask this on the user mailing list, which is detailed in the link below. Please also read the 17 netiquette points. http://www.jboss.org/drools/lists.html "The user mailing list is for general user querries about drools and how to use and it problems with using it. The dev mailing list is for more hard core discussions about about developing drools itself and general rules/ai theory that might apply to future drools features." > Diablo_UK wrote: > >> Hi guys, >> >> I'm very new to Guvnor and Drools and all these exciting tools. >> >> I'm working my way through the example that I found here: >> >> http://www.jboss.org/feeds/post/jboss_drools_how_to_tuning_guvnor_part_1 >> >> and everything was just fine and dandy until I had to run the java code! >> Unfortunately, I get the following output: >> >> RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring with >> newInstance=false, secondsToRefresh=-1 >> RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring >> package provider : URLScanner monitoring URLs: >> http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/myNe... >> RuleAgent(default) EXCEPTION (Tue Feb 24 17:20:58 GMT 2009): null. Stack >> trace should follow. >> java.io.OptionalDataException >> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340) >> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) >> at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:59) >> at org.drools.agent.URLScanner.readPackage(URLScanner.java:138) >> at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:110) >> at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88) >> at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330) >> at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298) >> at org.drools.agent.RuleAgent.configure(RuleAgent.java:284) >> at org.drools.agent.RuleAgent.init(RuleAgent.java:208) >> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176) >> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148) >> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:216) >> at com.ioko.GuvnorTest.main(GuvnorTest.java:27) >> com.ioko.Driver >> >> But I have no idea why!!!! >> >> Can any of you guys please please please help a newbie? >> >> Many thanks, >> Adrian M Bell >> >> > > _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev

Hi, I am using Decision table to represent the business rules, i want to give priority to set of rules (here rows) to be executed first before other rules i found the keyword to achieve that but i am unable to find how to means where should i add this keyword in the Excel file. Please provide the details, i am stuck in the middle please help. Thanks & Regards Mohiuddin On Wed, Feb 25, 2009 at 7:21 PM, Diablo_UK <adrian.bell(a)ioko.com <mailto:adrian.bell@ioko.com>> wrote: My apologies. Mark Proctor wrote: > > Diablo_UK wrote: >> Just done a little bit more digging and it seems that the exception is >> occuring when the package is attempted to be read. >> >> If I point a browser at the url, I get the "opening package" dialog from >> the >> browser. Does this mean that Guvnor hasn't generated the package >> correctly? >> >> Anyone got *any* ideas? >> > Rules Dev is for the development of drools, not for questions about the > use of drools. Please ask this on the user mailing list, which is > detailed in the link below. Please also read the 17 netiquette points. > http://www.jboss.org/drools/lists.html > "The user mailing list is for general user querries about drools and how > to use and it problems with using it. The dev mailing list is for more > hard core discussions about about developing drools itself and general > rules/ai theory that might apply to future drools features." >> Diablo_UK wrote: >> >>> Hi guys, >>> >>> I'm very new to Guvnor and Drools and all these exciting tools. >>> >>> I'm working my way through the example that I found here: >>> >>> http://www.jboss.org/feeds/post/jboss_drools_how_to_tuning_guvnor_part_1 >>> >>> and everything was just fine and dandy until I had to run the java code! >>> Unfortunately, I get the following output: >>> >>> RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring with >>> newInstance=false, secondsToRefresh=-1 >>> RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring >>> package provider : URLScanner monitoring URLs: >>> http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/myNe... >>> RuleAgent(default) EXCEPTION (Tue Feb 24 17:20:58 GMT 2009): null. Stack >>> trace should follow. >>> java.io.OptionalDataException >>> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340) >>> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) >>> at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:59) >>> at org.drools.agent.URLScanner.readPackage(URLScanner.java:138) >>> at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:110) >>> at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88) >>> at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330) >>> at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298) >>> at org.drools.agent.RuleAgent.configure(RuleAgent.java:284) >>> at org.drools.agent.RuleAgent.init(RuleAgent.java:208) >>> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176) >>> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148) >>> at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:216) >>> at com.ioko.GuvnorTest.main(GuvnorTest.java:27) >>> com.ioko.Driver >>> >>> But I have no idea why!!!! >>> >>> Can any of you guys please please please help a newbie? >>> >>> Many thanks, >>> Adrian M Bell >>> >>> >> >> > > > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-dev > > -- View this message in context: http://www.nabble.com/Guvnor-problem-tp22188114p22203198.html Sent from the drools - dev mailing list archive at Nabble.com. _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-dev ------------------------------------------------------------------------ _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev

The exception: java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.drools.lang.RuleParserTest.execTreeParser(RuleParserTest.java:4071) at org.drools.lang.RuleParserTest.newParser(RuleParserTest.java:4038) at org.drools.lang.RuleParserTest.parse(RuleParserTest.java:3996) at org.drools.lang.RuleParserTest.parseResource(RuleParserTest.java:4025) at org.drools.lang.RuleParserTest.testTypeDeclaration1(RuleParserTest.java:3762) Caused by: java.lang.NullPointerException at org.drools.lang.descr.DescrFactory.createTypeField(DescrFactory.java:401) at org.drools.lang.DescrBuilderTree.decl_field(DescrBuilderTree.java:1758) at org.drools.lang.DescrBuilderTree.type_declaration(DescrBuilderTree.java:1592) at org.drools.lang.DescrBuilderTree.statement(DescrBuilderTree.java:575) at org.drools.lang.DescrBuilderTree.compilation_unit(DescrBuilderTree.java:222) ... 34 more Here is the drl that causes it: [declare_type_1.drl] package org.drools; declare NetworkNode locElevation: java.math.BigDecimal name: String @key nodeClass: String locLongitude: java.math.BigDecimal nodeType: String locLatitude: java.math.BigDecimal end declare NetworkConnection id: String @key node1: NetworkNode node2: NetworkNode hops: Integer end declare NetworkEvent @role( event ) @timestamp( creationTime ) id: String @key locElevation: java.math.BigDecimal description: String sourceComponent: NetworkNode locLongitude: java.math.BigDecimal severity: Integer creationTime: java.util.Date locLatitude: java.math.BigDecimal end the test function in RuleParserTest.java you can use to replicate: public void testTypeDeclaration1() throws Exception { parseResource( "compilation_unit", "compilation_unit", "declare_type_1.drl" ); final PackageDescr pack = walker.getPackageDescr(); final List<TypeDeclarationDescr> declarations = pack.getTypeDeclarations(); assertEquals( 3, declarations.size() ); } I believe @key is the cause, I based my code on the example from the documentation: declare Person @author( Bob ) @dateOfCreation( 01-Feb-2009 ) name : String @key @maxLength( 30 ) dateOfBirth : Date address : Address end Regards --zoly _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev