Re: [rules-users] DRL to XML transformation
The XML format produced by XmlDumper is an XML representation of various internal Descriptors used by Drools Expert and only supports features up to 4.0 It is unfortunately not the same as that stored internally in Guvnor (which is simply a XStream representation of Guvnor's internal model). Furthermore Guvnor's internal representation is private and subject to change from release to release. There is no easy way to convert from one to the other, other than writing your own XSLT. With kind regards, Mike On 29 May 2012 13:36, Anirban Bandyopadhyay anirban.bandyopadh...@monitisegroup.com wrote: Hi, ** ** We have a set of rule files in DRL format. We couldn’t find a way (tool) of importing them into Guvnor as BRL file so that we can edit using the designer. ** ** We ended up using the DrlParser and XmlDumper to transform them from DRL to BRL. It produces the XML and when we add it to the repository using WebDav, Guvnor lists the files under Business Rule which is perfect. BUT when I try to open it, it throws the following error: ** ** com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$Unkno wnFieldException: No such field org.drools.ide.common.client.modeldriven.brl.Rul eModel.rule-attribute Debugging information field : rule-attribute class : org.drools.ide.common.client.modeldriven.brl.RuleModel required-type : org.drools.ide.common.client.modeldriven.brl.RuleModel converter-type : com.thoughtworks.xstream.converters.reflection.ReflectionC onverter path: /rule/rule-attribute version : null --- at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.determineType(AbstractReflectionConverter.java:449) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.doUnmarshal(AbstractReflectionConverter.java:290) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.unmarshal(AbstractReflectionConverter.java:230) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshall er.java:72) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(A bstractReferenceUnmarshaller.java:65) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnm arshaller.java:66) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnm arshaller.java:50) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller .java:134) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarsh al(AbstractTreeMarshallingStrategy.java:32) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1035)** ** at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1019)** ** at com.thoughtworks.xstream.XStream.fromXML(XStream.java:895) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:886) at org.drools.ide.common.server.util.BRXMLPersistence.unmarshal(BRXMLPer sistence.java:191) at org.drools.guvnor.server.contenthandler.drools.BRLContentHandler.retr ieveAssetContent(BRLContentHandler.java:41) at org.drools.guvnor.server.RepositoryAssetService.handlePackageItem(Rep ositoryAssetService.java:132) at org.drools.guvnor.server.RepositoryAssetService.loadRuleAsset(Reposit oryAssetService.java:118) at org.drools.guvnor.server.RepositoryAssetService$Proxy$_$$_WeldClientP roxy.loadRuleAsset(RepositoryAssetService$Proxy$_$$_WeldClientProxy.java)* *** at org.drools.guvnor.server.RepositoryServiceServlet.loadRuleAsset(Repos itoryServiceServlet.java:403) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:5 69) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(Remot eServiceServlet.java:208) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(Remot eServiceServlet.java:248) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(Ab stractRemoteServiceServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)*** * at
[rules-users] DRL to XML transformation
Hi, We have a set of rule files in DRL format. We couldn't find a way (tool) of importing them into Guvnor as BRL file so that we can edit using the designer. We ended up using the DrlParser and XmlDumper to transform them from DRL to BRL. It produces the XML and when we add it to the repository using WebDav, Guvnor lists the files under Business Rule which is perfect. BUT when I try to open it, it throws the following error: com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$Unkno wnFieldException: No such field org.drools.ide.common.client.modeldriven.brl.Rul eModel.rule-attribute Debugging information field : rule-attribute class : org.drools.ide.common.client.modeldriven.brl.RuleModel required-type : org.drools.ide.common.client.modeldriven.brl.RuleModel converter-type : com.thoughtworks.xstream.converters.reflection.ReflectionC onverter path: /rule/rule-attribute version : null --- at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.determineType(AbstractReflectionConverter.java:449) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.doUnmarshal(AbstractReflectionConverter.java:290) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConv erter.unmarshal(AbstractReflectionConverter.java:230) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshall er.java:72) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(A bstractReferenceUnmarshaller.java:65) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnm arshaller.java:66) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnm arshaller.java:50) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller .java:134) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarsh al(AbstractTreeMarshallingStrategy.java:32) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1035) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1019) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:895) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:886) at org.drools.ide.common.server.util.BRXMLPersistence.unmarshal(BRXMLPer sistence.java:191) at org.drools.guvnor.server.contenthandler.drools.BRLContentHandler.retr ieveAssetContent(BRLContentHandler.java:41) at org.drools.guvnor.server.RepositoryAssetService.handlePackageItem(Rep ositoryAssetService.java:132) at org.drools.guvnor.server.RepositoryAssetService.loadRuleAsset(Reposit oryAssetService.java:118) at org.drools.guvnor.server.RepositoryAssetService$Proxy$_$$_WeldClientP roxy.loadRuleAsset(RepositoryAssetService$Proxy$_$$_WeldClientProxy.java) at org.drools.guvnor.server.RepositoryServiceServlet.loadRuleAsset(Repos itoryServiceServlet.java:403) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:5 69) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(Remot eServiceServlet.java:208) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(Remot eServiceServlet.java:248) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(Ab stractRemoteServiceServlet.java:62) 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(Appl icationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:293) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:877) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:594) at
