[AGENT++] Strange bugs in AgenPro

[Frank Fock]

Hi Mike,

For AGENT++ enumeration constants are part of the MibLeaf
object declaration. By default columnar objects are only
created if they have at least read-write access. To
generate for read-only too, set the "lightTables" property
to "no" (both without quotes) for the root node in your
MIB tree.

The exception bug below should be fixed in version 2.5.1.
Are you using the latest version?

Best regards,
Frank

Mike Nuss wrote:
> I'm trying out the demo of AgenPro 2. While I'm happy with it overall
> so far, I've run into a couple of weird problems.
> 
> I'm using the supplied java_code.vm to generate code for snmp4j. The
> first issue is that if I define an object with an enumerated integer
> type, the enumeration constants simply don't show up in the generated
> Java source unless I set its MAX-STATUS to "read-write". If it's
> "read-only", I have to add the enumeration constants manually to the
> generated Java file.
> 
> The second issue is that in some circumstances, I get the following error:
> 
> 1015 [main] DEBUG Generator  - Found 0 existing code snippets
> 1069 [main] ERROR Velocity  - Method getModuleName threw exception for
> reference $agenUtils in template /home/mike/src/snmp/code.vm at
> [506,31]
> 1069 [main] ERROR Velocity  - Method getModuleName threw exception for
> reference $tcModules in template /home/mike/src/snmp/code.vm at
> [506,16]
> org.apache.velocity.exception.MethodInvocationException: Invocation of
> method 'getModuleName' in  class com.agentpp.agenpro.util.AgenUtils
> threw exception class java.lang.NullPointerException : null
>        at 
> org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:309) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:357) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTMethod.doIntrospection(ASTMethod.java:145) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:209) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:357) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:135) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94)
>        at 
> org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94)
>        at 
> org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94)
>        at 
> org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:344)
>        at 
> org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:153) 
> 
>        at 
> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) 
> 
>        at org.apache.velocity.Template.merge(Template.java:296)
>        at com.agentpp.agenpro.Generator.run(Unknown Source)
>        at com.agentpp.agenpro.AgenPro.main(Unknown Source)
> 1092 [main] ERROR Generator  - Invocation of method 'getModuleName' in
> class com.agentpp.agenpro.util.AgenUtils threw exception class
> java.lang.NullPointerException : null
> 1092 [main] INFO AgenPro.Console  - Finished all jobs with 1 error(s),
> AgenPro terminated.
> 
> 
> I seem to get this error if I define an object as having syntax
> DisplayString, unless the object also happens to be a column of a
> table, in which case it works fine. If I have a scalar object defined
> as a DisplayString, I get this error. If I just change the syntax to
> something else (for example, OCTET STRING), it works fine. My MIB
> compiles without any errors, and I'm importing DisplayString, so this
> looks to me like a bug.
> 
> Both of these issues are easily reproducible.
> 
> Thanks in advance,
> Mike
> _______________________________________________
> AGENTPP mailing list
> AGENTPP at agentpp.org
> http://lists.agentpp.org/mailman/listinfo/agentpp

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