9:19 a.m.
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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10:01 a.m.
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(a)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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Steven Williams
Supervising Consultant
Object Consulting
Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
stevenw(a)objectconsulting.com.au
www.objectconsulting.com.au
consulting | development | training | support
our experience makes the difference
12:48 p.m.
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(a)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.?
>
> --
> View this message in context:
> http://www.nabble.com/Help-%3A-drools-implementing-tf3530032.html#a9851208
> Sent from the drools - user mailing list archive at Nabble.com.
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
--
Steven Williams
Supervising Consultant
Object Consulting
Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
stevenw(a)objectconsulting.com.au
www.objectconsulting.com.au
consulting | development | training | support
our experience makes the difference
_______________________________________________
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rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
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1:03 p.m.
i guess you are reading the drl file from the file syste. Instead i suggest
bundle your file with package and using relative path read the file. This is
one solution.
The other solution is while start your application server read all the rules
from the drl and create a rulebase.
so for that you can write your drl parsing code in helper class callable
from your servlet.
vista2007 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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6237
days inactive
6237
days old
3 comments
3 participants
participants (3)
-
Basha -
Steven Williams -
vista2007