Enlighten me, please.<br><br>If ResourceFactory.newReaderResource() creates a drools.io.Resource from a java.io.Reader, how would you get at some modification time, and of what?<br><br>The general idea of a Reader seems to be a data source without implication as to data representation, persistence, file system or any other such thing.<br>
<br>-W<br><br><br><div class="gmail_quote">2012/1/6 Esteban Aliverti <span dir="ltr"><<a href="mailto:esteban.aliverti@gmail.com">esteban.aliverti@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left:1px solid rgb(204,204,204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex">
+1 to Thomas' proposal: the first step would be to change the thrown Exception to UnsupportedOperationException. Of course this will be a temporary change until Dean implements all the methods in the correct way :) <div>
<br></div><div>Best Regards<div class="im"><br clear="all"><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><br></div><div class="gmail_quote">2012/1/6 Swindells, Thomas <span dir="ltr"><<a href="mailto:TSwindells@nds.com" target="_blank">TSwindells@nds.com</a>></span><div><div class="h5"><br><blockquote class="gmail_quote" style="border-left:1px solid rgb(204,204,204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">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!<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Thomas<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"><u></u> <u></u></span></p>
<div style="border-style:none none none solid;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color blue;border-width:medium medium medium 1.5pt;padding:0cm 0cm 0cm 4pt">
<div>
<div style="border-style:solid none none;border-color:rgb(181,196,223) -moz-use-text-color -moz-use-text-color;border-width:1pt medium medium;padding:3pt 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10pt;font-family:"Tahoma","sans-serif""> <a href="mailto:rules-users-bounces@lists.jboss.org" target="_blank">rules-users-bounces@lists.jboss.org</a> [mailto:<a href="mailto:rules-users-bounces@lists.jboss.org" target="_blank">rules-users-bounces@lists.jboss.org</a>]
<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<u></u><u></u></span></p>
</div>
</div><div><div>
<p class="MsoNormal"><u></u> <u></u></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.<u></u><u></u></p>
<div>
<p class="MsoNormal">So if we take a look at ReaderResource.getLastModified() we will see this:<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">public long getLastModified() {<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> throw new IllegalStateException( "reader does have a modified date" );<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">} <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<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" target="_blank">https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/io/impl/ReaderResource.java</a><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">So, don't expect this to work :)<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">There are 2 things you can do:<u></u><u></u></p>
</div>
<div>
<ol start="1" type="1">
<li class="MsoNormal">
Submit a patch for ReaderResource.java implementing all the unimplemented methods :) <u></u><u></u></li><li class="MsoNormal">
Use a different Resource like UrlResource, FileResource, InputStreamResource, etc. <u></u><u></u></li></ol>
</div>
<div>
<p class="MsoNormal">In my opinion, Bug 733008 must be reopened until someone (maybe you Dean) provides a correct implementation of ReaderResource. <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Best Regards,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12pt"><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>
<u></u><u></u></p>
<div>
<p class="MsoNormal">On Fri, Jan 6, 2012 at 8:53 AM, Dean <<a href="mailto:dean@qualica.com" target="_blank">dean@qualica.com</a>> wrote:<u></u><u></u></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" target="_blank">[2012-01-06 09</a>:47:57,144:exception]<u></u><u></u></p>
<div>
<p class="MsoNormal">java.lang.IllegalStateException: reader does have a modified date<u></u><u></u></p>
</div>
<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:rgb(136,136,136)"><br>
<span>Dean</span><br>
<br>
<br>
<span>--</span><br>
<span>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><u></u><u></u></p>
<div>
<div>
<p class="MsoNormal">Sent from the Drools: User forum mailing list archive at Nabble.com.<br>
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<p class="MsoNormal"><u></u> <u></u></p>
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