Re: [rules-users] Resource Change Scanner Service modified date error

As well as the message not making sense the exception should also really be UnsupportedOperationException, of course the preference is for someone to implement it and make it supported! Thomas From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Esteban Aliverti Sent: 06 January 2012 09:14 To: Rules Users List Subject: Re: [rules-users] Resource Change Scanner Service modified date error Could you please share with us how are you adding your resources to the agent? According to what you are saying I assume you are using a ReaderResource. According to Drools code, ReaderResource doesn't support most of org.drools.io.internal.InternalResource methods. Some of these methods (i.e. getLastModified()) are used by ResourceScanner to check if a resource has actually changed. So if we take a look at ReaderResource.getLastModified() we will see this: public long getLastModified() { throw new IllegalStateException( "reader does have a modified date" ); } You can find the whole source code here: https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/jav... So, don't expect this to work :) There are 2 things you can do: 1. Submit a patch for ReaderResource.java implementing all the unimplemented methods :) 2. Use a different Resource like UrlResource, FileResource, InputStreamResource, etc. In my opinion, Bug 733008 must be reopened until someone (maybe you Dean) provides a correct implementation of ReaderResource. Best Regards, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Jan 6, 2012 at 8:53 AM, Dean <dean@qualica.com<mailto:dean@qualica.com>> wrote: I'm pretty sure this issue is the same as Bug 733008 (https://bugzilla.redhat.com/show_bug.cgi?id=733008). I have updated the class from Bug 733008 to reproduce the bug in Drools 5.4.0.Beta1: http://drools.46999.n3.nabble.com/file/n3637279/AgentTest.java AgentTest.java It doesn't seem to be possible to scan a resource for changes at all. Even if I execute ResourceFactory.getResourceChangeScannerService().scan(); directly, I get the same error message: [2012-01-06 09<tel:%5B2012-01-06%2009>:47:57,144:exception] java.lang.IllegalStateException: reader does have a modified date at org.drools.io.impl.ReaderResource.getLastModified(ReaderResource.java:64) at org.drools.io.impl.ResourceChangeScannerImpl.scan(ResourceChangeScannerImpl.java:166) at org.drools.io.impl.ResourceChangeScannerImpl$ProcessChangeSet.run(ResourceChangeScannerImpl.java:311) at java.lang.Thread.run(Thread.java:662) (As a side note the error message should probably read: reader does /not/ have a modified date) Regards Dean -- View this message in context: http://drools.46999.n3.nabble.com/Resource-Change-Scanner-Service-modifie... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users ________________________________ ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster(a)nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 **************************************************************************************