<br><font size=2 face="Trebuchet MS">Hi</font>
<br>
<br><font size=2 face="Trebuchet MS">I still have not got any solution
of my problem that I posted previously. I have included all required jar
files and set proper class path .. Please do help ?</font>
<br>
<br><font size=2 face="Trebuchet MS">problem: </font>
<br>
<table>
<tr valign=top>
<td><font size=2 face="Trebuchet MS">I am trying to integrate Drool with
ofbiz and run application from command prompt. In one way I have integrated
it properly and I am able to run it <b>successfully.</b></font><font size=3>
<br>
</font><font size=2 face="Trebuchet MS"><b><br>
Code :</b> Which I was using initially</font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><br>
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
</font><font size=3><br>
</font><font size=2 face="Trebuchet MS"><br>
or</font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><br>
PackageBuilderConfiguration cfg = new PackageBuilderConfiguration();</font><font size=3>
</font><font size=2 face="Trebuchet MS"><br>
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
</font><font size=3><br>
</font><font size=2 face="Trebuchet MS"><b><br>
Exception I got :</b></font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><br>
org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java
<br>
:org.drools.rule.builder.dialect.java.JavaDialectConfiguration'</font><font size=3>
</font><font size=2 face="Trebuchet MS"><br>
at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:274)
at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:259)
</font><font size=3><br>
</font><font size=2 face="Trebuchet MS"><br>
at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:176)
at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:153)
at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:242)
<br>
.</font><font size=3> </font><font size=2 face="Trebuchet MS"><br>
.</font><font size=3> </font><font size=2 face="Trebuchet MS"><br>
.</font><font size=3> </font><font size=2 face="Trebuchet MS"><br>
Caused by: java.lang.NullPointerException</font><font size=3> </font><font size=2 face="Trebuchet MS"><br>
at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:92)
at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55)
at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:270</font><font size=3>
<br>
</font><font size=2 face="Trebuchet MS"><b><br>
Problem I found : </b><br>
In the class JavaDialectConfiguration in jar file drools-compiler.jar there
is a method named "setCompliler", in this method Null Pointer
Exception was coming.</font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><b><br>
Solution I provided :</b></font><font size=3> </font><font size=2 face="Trebuchet MS"><br>
In my application I created my custom class CustomJavaDialectConfiguration
by extending to class JavaDialectConfiguration, In this class I overrided
the method setCompiler. My method was exactly same as that of method setCompiler
in JavaDialectConfiguration . To call my dialect class I also overrided
the method "addDialect" of PackageBuilderConfiguration class
. For that I created class CustomPackageBuilderConfiguration by extending
to PackageBuilderConfiguration. <br>
after that I wrote the code:</font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><br>
PackageBuilderConfiguration cfg = new CustomPackageBuilderConfiguration();</font><font size=3>
</font><font size=2 face="Trebuchet MS"><br>
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(cfg);</font><font size=3>
<br>
<br>
</font><font size=2 face="Trebuchet MS"><br>
Now application is running perfectly fine from both eclipse and command
prompt without any exception.</font><font size=3> <br>
</font><font size=2 face="Trebuchet MS"><b><br>
I want to know as my overrided method "setCompiler" was exactly
same then why I had to override method, and In original code (ie in drools-compiler.jar
file) why it was giving exception ??? Was that due to class
lader or something else ?? Please do help in this regard ....</b></font><font size=3>
<br>
</font></table>
<br><font size=2 face="Trebuchet MS"> </font>
<br>
<br><font size=2 face="Trebuchet MS">Thanks & Regards:<br>
<br>
Pankaj Jain | L&T infotech |Navi Mumbai<br>
Mobile: +91 9920218945<br>
Email : pankaj.jain@lntinfotech.com<br>
www.Lntinfotech.com<br>
<br>
"Whatever the mind of man can conceive & believe, it can achieve."<br>
<b><br>
Larsen & Toubro Infotech Ltd.</b></font><font size=2 color=blue face="Trebuchet MS"><u><br>
</u></font><a href=http://www.lntinfotech.com/><font size=2 color=blue face="Trebuchet MS"><u>www.Lntinfotech.com</u></font></a><font size=2 face="Trebuchet MS"><br>
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