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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">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!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thomas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org]
<b>On Behalf Of </b>Esteban Aliverti<br>
<b>Sent:</b> 06 January 2012 09:14<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Resource Change Scanner Service modified date error<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
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<p class="MsoNormal">So if we take a look at ReaderResource.getLastModified() we will see this:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">public long getLastModified() {<o:p></o:p></p>
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<p class="MsoNormal"> throw new IllegalStateException( "reader does have a modified date" );<o:p></o:p></p>
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<p class="MsoNormal">} <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">You can find the whole source code here: <a href="https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/io/impl/ReaderResource.java">https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/io/impl/ReaderResource.java</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So, don't expect this to work :)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">There are 2 things you can do:<o:p></o:p></p>
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<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Submit a patch for ReaderResource.java implementing all the unimplemented methods :) <o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Use a different Resource like UrlResource, FileResource, InputStreamResource, etc. <o:p></o:p></li></ol>
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<p class="MsoNormal">In my opinion, Bug 733008 must be reopened until someone (maybe you Dean) provides a correct implementation of ReaderResource. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best Regards,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<br>
<br>
Esteban Aliverti<br>
- Developer @ <a href="http://www.plugtree.com" target="_blank">http://www.plugtree.com
</a><br>
- Blog @ <a href="http://ilesteban.wordpress.com" target="_blank">http://ilesteban.wordpress.com</a><br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal">On Fri, Jan 6, 2012 at 8:53 AM, Dean <<a href="mailto:dean@qualica.com">dean@qualica.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">I'm pretty sure this issue is the same as Bug 733008<br>
(<a href="https://bugzilla.redhat.com/show_bug.cgi?id=733008" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=733008</a>).<br>
<br>
I have updated the class from Bug 733008 to reproduce the bug in Drools<br>
5.4.0.Beta1:<br>
<br>
<a href="http://drools.46999.n3.nabble.com/file/n3637279/AgentTest.java" target="_blank">http://drools.46999.n3.nabble.com/file/n3637279/AgentTest.java</a><br>
AgentTest.java<br>
<br>
It doesn't seem to be possible to scan a resource for changes at all. Even<br>
if I execute ResourceFactory.getResourceChangeScannerService().scan();<br>
directly, I get the same error message:<br>
<br>
<a href="tel:%5B2012-01-06%2009">[2012-01-06 09</a>:47:57,144:exception]<o:p></o:p></p>
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<p class="MsoNormal">java.lang.IllegalStateException: reader does have a modified date<o:p></o:p></p>
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<p class="MsoNormal"> at<br>
org.drools.io.impl.ReaderResource.getLastModified(ReaderResource.java:64)<br>
at<br>
org.drools.io.impl.ResourceChangeScannerImpl.scan(ResourceChangeScannerImpl.java:166)<br>
at<br>
org.drools.io.impl.ResourceChangeScannerImpl$ProcessChangeSet.run(ResourceChangeScannerImpl.java:311)<br>
at java.lang.Thread.run(Thread.java:662)<br>
<br>
(As a side note the error message should probably read: reader does /not/<br>
have a modified date)<br>
<br>
Regards<br>
<span style="color:#888888"><br>
<span class="hoenzb">Dean</span><br>
<br>
<br>
<span class="hoenzb">--</span><br>
<span class="hoenzb">View this message in context: <a href="http://drools.46999.n3.nabble.com/Resource-Change-Scanner-Service-modified-date-error-tp3634802p3637279.html" target="_blank">
http://drools.46999.n3.nabble.com/Resource-Change-Scanner-Service-modified-date-error-tp3634802p3637279.html</a></span></span><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">Sent from the Drools: User forum mailing list archive at Nabble.com.<br>
_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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