[rules-users] Integrating Drools with rules from a legacy BRMS

I am working on integrating Drools with a legacy BRMS that was developed in-house. The customers like the BRMS and are unwilling to migrate to another tool such as Guvnor. The BRMS creates the rules in a proprietary XML format. In order to integrate Drools with the BRMS, I need to convert these rules to a format that Drools understands and that leaves me with what seems like 3 options: 1) Write some XSLT to transform the proprietary XML to Drools XML format. This seems straightforward; however, I am concerned that the online documentation states that the Drools XML format should be considered deprecated. I'd hate to invest much time in this approach if the XML support is going to disappear in a future release. 2) Write my own parser that can convert the proprietary XML to classes in the org.lang.descr package. I'm not sure if the Drools developers intend for others to use these classes directly. For instance, if they change frequently, this approach may be difficult to maintain. 3) Write my own parser that can convert the proprietary XML to DRL. This approach seems unfortunate in that the rules would be parsed twice; first to convert them to DRL and then internally by the Drools DrlParser. Also, this doesn't seem to offer any benefit over approach 2 (except that I know DRL well and wouldn't have to learn how the org.lang.descr classes work [not much documentation in those classes]). Right now, I'm leaning towards approach 2. Any thoughts or suggestions would be appreciated. -- View this message in context: http://drools.46999.n3.nabble.com/Integrating-Drools-with-rules-from-a-le... Sent from the Drools: User forum mailing list archive at Nabble.com.