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-boun...@lists.jboss.org [mailto:rules-users-boun...@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/java/org/drools/io/impl/ReaderResource.java 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 <d...@qualica.com<mailto:d...@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-modified-date-error-tp3634802p3637279.html 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 postmas...@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 **************************************************************************************
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