[rules-users] Help : drools implementing

[vista2007]

Hi Thank You For your answer. I understand the problum. I'm using "Sun Java
System Application Server". Is there any other way to implement rools,
without loading the rule file from an  I/O operation  in J2EE environment?

Thank You




Steven Williams-5 wrote:
> 
> J2EE does not allow File I/O so it may be that your app server does not
> allow it by default and you need to give your application permission to do
> it. This would generally be done in a policy file (in WebSphere it is
> was.policy).
> 
> Steve
> 
> On 4/5/07, vista2007 <my_vista2007 at yahoo.com> wrote:
>>
>>
>> I want to call rules from session bean. I implement this by calling a
>> utility
>> callss from the Session bean method.
>> That Utility class load the rule file as
>>
>> "final Reader source = new
>> InputStreamReader(BaseRuleImpl.class.getResourceAsStream(rulefile));"
>>
>> this gives the result as expected. But it throws an exception in the
>> server
>> as follows,(Server log)
>>
>> java.lang.Throwable
>>         at
>> com.sun.enterprise.loader.EJBClassLoader$SentinelInputStream.<init>(
>> EJBClassLoader.java:1123)
>>         at
>>
>> com.sun.enterprise.loader.EJBClassLoader$InternalJarURLConnection.getInputStream
>> (EJBClassLoader.java:1216)
>>         at java.net.URL.openStream(URL.java:1009)
>>         at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java
>> :1161)
>>         at
>> com.sun.enterprise.loader.EJBClassLoader.getResourceAsStream(
>> EJBClassLoader.java:782)
>>         at java.lang.Class.getResourceAsStream(Class.java:2030)
>>         at org.drools.semantics.java.RuleBuilder.<clinit>(Unknown Source)
>>         at org.drools.compiler.PackageBuilder.addRule(Unknown Source)
>>         at org.drools.compiler.PackageBuilder.addPackage(Unknown Source)
>>         at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown
>> Source)
>>         at
>> com.argosoftware.rules.impl.BaseRuleImpl.readRule(BaseRuleImpl.java:29)
>>         at
>> com.argosoftware.rules.impl.RuleImpl.fireRule(RuleImpl.java:54)
>>         at
>> com.argosoftware.rules.ejb.session.LogicHandlerBean.ruleHandler(
>> LogicHandlerBean.java:42)
>>
>> I think this is because of the IO operation.
>> Can anybody kindly suggest a solution for this.?
>>
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>>
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> 
> 
> 
> -- 
> Steven Williams
> 
> Supervising Consultant
> 
> Object Consulting
> Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
> stevenw at objectconsulting.com.au
> www.objectconsulting.com.au
> 
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