<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">JIRA issues are for reporting bugs in drools. Is there a bug you're reporting or do you want help with this particular problem?<br><br>--- On <b>Fri, 5/14/10, Makewise - Vitor Rui Mendonça <i><Vitor.Mendonca@brisa.pt></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Makewise - Vitor Rui Mendonça <Vitor.Mendonca@brisa.pt><br>Subject: [rules-users] Entry-Points can cause NullPointerException and/or no rule firing<br>To: "Rules Users List" <rules-users@lists.jboss.org><br>Date: Friday, May 14, 2010, 8:40 AM<br><br><div id="yiv1181897749">
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">Hi again.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">First of all, I’m running Drools 5.1.0.SNAPSHOT on Windows and
Eclipse 3.4.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">I’ve submitted a Jira Issue (<a rel="nofollow" target="_blank" href="https://jira.jboss.org/jira/browse/JBRULES-2511">https://jira.jboss.org/jira/browse/JBRULES-2511</a>):</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">“</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">I've got a system that receives transactions. I want to
implement the following rules: <br>
- raise an alarm(alarm event) when there aren't any transaction for an hour (or
more); <br>
- if there's an alarm, no more alarms should be raised; <br>
- if there's an alarm and the system receives a transaction, that alarm should
be retracted and the system should send an recovery event. <br>
<br>
I've implemented the rules this way: <br>
- ***start*** rule to insert an "EngineStart" event when the rules
engine starts <br>
- ***notrx_after_start*** rule to detect absence of transactions during the
first hour <br>
- ***notrx_after_trx*** rule to detect absence of transactions (during one
hour) after last transaction <br>
- ***rearm*** rule to detect transactions and rearm the system. <br>
<br>
I made a Maven project with junits, which inserts transactions at specific
time, in order to raise the desired events. <br>
<br>
Two set of tests were made: <br>
- the rules defined in "default" entry-point: the correspondent junit
gives a NullPointerException in DefaultAgenda <br>
- the rules defined in "incoming" entry-point: the correspondent
junit doesn't activate the ***rearm*** rule</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">“</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">The issue has an attachment with junits and rules to play with.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US">T.I.A.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: "sans-serif"; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><img id="Picture_x0020_1" src="cid:1.4138684661@web81504.mail.mud.yahoo.com" border="0" width="389" height="6"></span></p>
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<p class="MsoNormal"><span style="font-size: 7.5pt; font-family: "sans-serif"; color: rgb(31, 73, 125);">Vítor Mendonça Moreira<br>
</span><b><span style="font-size: 7.5pt; font-family: "sans-serif"; color: rgb(138, 154, 55);">Analista / Programador<br>
Direcção de Investigação e Desenvolvimento</span></b><span style="font-size: 7.5pt; font-family: "sans-serif"; color: rgb(31, 73, 125);"><br>
<br>
Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq.<br>
2500 - 206 - Caldas da Rainha<br>
Tel: (+351) 262 832 196<br>
Fax: (+351) 262 186 455<br>
Web: <a rel="nofollow" target="_blank" href="http://www.makewise.pt">www.makewise.pt</a><br>
Uma empresa: <a rel="nofollow" target="_blank" href="http://www.sousapedro.com">Grupo Sousa Pedro</a> </span></p>
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