[jboss-user] [Management, JMX/JBoss] - MBean deployment - EJB3 and call
Hallo,
I try to deploy a MBean with EJB3 annotation on the server and call it from a sessionBean.
The MBean looks like:
| package trail.jmx;
|
| import org.jboss.annotation.ejb.Service;
| import org.jboss.annotation.ejb.Management;
|
| @Service (objectName="trail:service=calculator")
| @Management(Calculator.class)
| public class CalculatorMBean implements Calculator {
|
| public double calculate (int start, int end, double saving) {
| double tmp = Math.pow(1. + growthrate / 12., 12. * (end - start) + 1);
| return saving * 12. * (tmp - 1) / growthrate;
| }
| ....
|
In My SessionBean I want to call it with:
| private Object callXMB_Calculator(String operationName, Object[] params)
| {
| Object result = null;
|
| try
| {
| MBeanServer mbs = (MBeanServer)
MBeanServerFactory.findMBeanServer(null).iterator().next();
| ObjectName oName = new
ObjectName("jboss.j2ee:jar=CalcMBean.jar,name=CalculatorMBean,service=EJB3");
|
| String[] signature = null;
| if (params != null)
| {
| signature = new String[params.length];
|
| for (int i = 0; i < params.length; ++i)
| {
| signature = params.getClass().getName();
| }
| }
|
| result = mbs.invoke(oName, operationName, params, signature);
|
I call the function like this:
| callXMB_Calculator("calculate", new Object[]{1,2,4d});
|
But when I call the service-Method, I get a ReflectionException
Caused by: java.lang.IllegalArgumentException: Unable to find operation
calculate(java.lang.Integer,java.lang.Integer,java.lang.Double)
When the server ist starting, I get the message:
| 2008-05-02 09:30:35,281 INFO [org.jboss.ejb3.JmxKernelAbstraction] installing MBean:
jboss.j2ee:jar=CalcMBean.jar,name=CalculatorMBean,service=EJB3 with dependencies:
| 2008-05-02 09:30:35,468 INFO [org.jboss.ejb3.EJBContainer] STARTED EJB:
trail.jmx.CalculatorMBean ejbName: CalculatorMBean
| 2008-05-02 09:30:35,531 INFO [STDOUT] Calculator - Creating
|
To deploy the service, I have only copied the .jar file into the deploy directory. It
contains only the .class files.
With the use of 'old' XMBean' I have no problem, but I would prefere the EJB3
style. What can I do?
Thank you,
Werner Hofmann
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