Re: [rules-dev] Fwd: [rules-users] DRL to XML transformation

Edson, Mark, AFAIK XmlDumpers's XML is not the same as the internal representation used by Guvnor (that is really only an XStream representation of Guvnor's internal model). I had a look at XmlDumper and it references a schema (that I could not find), but it definitely follows a different mechanism to Guvnor. Am I correct? The user below would need to write an XSLT to transform between the two. Or is the expectation that XML from XmlDumper should be able to be loaded into Guvnor? Thanks, Mike ---------- Forwarded message ---------- From: *Anirban Bandyopadhyay* <Anirban.Bandyopadhyay(a)monitisegroup.com <mailto:Anirban.Bandyopadhyay@monitisegroup.com>> Date: 29 May 2012 13:36 Subject: [rules-users] DRL to XML transformation To: &quot;rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org>" <rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org>> 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$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:594) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:16 75) at java.lang.Thread.run(Thread.java:662) I am able to re-produce the same error when I try to convert the BRL to DRL using BRDRLPersistence and BRXMLPersistence marshalling and unmarshalling. I checked that the field 'rule-attribute' is indeed not present in org.drools.brms.client.modeldriven.brl.RuleModel. when I look at the example brl file from the sample mortgage, they don't have 'rule-attribute', and it's not only that specific node, the whole set of node names are different. >>>>>>>>>>>>>>>>>>>>>>>>>>>> public void convertDrlToBrl() throws IOException, DroolsParserException { Resource fileResource = new ClassPathResource("Beneficiary_User_KYC_Level_3_Daily_Limit.drl"); DrlParser parser = new DrlParser(); XmlDumper dumper = new XmlDumper(); Reader source = new InputStreamReader(new FileInputStream(fileResource.getFile())); PackageDescr pkg = parser.parse(source); String xmlString = dumper.dump(pkg); System.out.println(xmlString); } <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> public void convertBrlToDrl() throws IOException { Resource fileResource = new ClassPathResource("Beneficiary_User_KYC_Level_3_Daily_Limit_BRL.brl"); String fileAsString = FileUtils.readFileToString(fileResource.getFile()); BRDRLPersistence write = (BRDRLPersistence) BRDRLPersistence.getInstance(); BRXMLPersistence read = (BRXMLPersistence) BRXMLPersistence.getInstance(); RuleModel ruleModel = read.unmarshal(fileAsString); String outputDRL = write.marshal(ruleModel); System.out.println(outputDRL); } <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Generated xml file: =============================================== <rule name="Beneficiary_User_KYC_Level_3_Daily_Limit_BRL"> <rule-attribute name="dialect" value="mvel" /> <lhs><pattern object-type="UserBean" > <field-constraint field-name="kycLevel"> <literal-restriction evaluator="==" value="KYC_LEVEL_3" /> </field-constraint> <field-constraint field-name="userType"> <literal-restriction evaluator="==" value="BENEFICIARY" /> </field-constraint> </pattern> <pattern object-type="Activity" > <field-constraint field-name="type"> <literal-restriction evaluator="!=" value="TRANSACTION.SEND" /> </field-constraint> </pattern> </lhs><rhs> Limit fact0 = new Limit(); fact0.setType( "DAILY_TRANSACTION_LIMIT" ); fact0.setValue( 10000 ); fact0.setErrorMessage( "Maximum daily total amount of N10,000 exceeded for {0}." ); insert(fact0 ); </rhs> </rule> ================================================ Am I doing something wrong? Is there a better way of converting the DRLs to BRLs? Thanks in advance! *Anirban Bandyopadhyay* ------------------------------------------------------------------------ This message contains confidential and proprietary information of the sender, and is intended only for the person(s) to whom it is addressed. Any use, distribution, copying, disclosure or taking of any action in reliance upon it by any other person is strictly prohibited. If you have received this message in error, please notify the e-mail sender immediately, and delete the original message without making a copy. The Monitise group comprises: Monitise plc (Reg. No. 6011822), Monitise Group Limited (Reg. No. 5590897), Monitise International Limited (Reg. No. 5556711) and Monitise Europe Limited (Reg. No. 4831976). These companies are registered in England and Wales and their registered office address is: Warnford Court, 29 Throgmorton Street, London, EC2N 2AT United Kingdom. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev