EJB 3.0 Interceptors not Firing
I'm sure this is the worst of all possible post types (e.g., no behavior rather than an error that one can diagnose). I am trying to write a very simple EJB 3.0 interceptor that will perform error logging and auditing. The interceptor itself is in a separate class and is referenced via the @Interceptors annotation in a SLSB. When viewing my logs, I never see any of the error messages output.
Or there might be a simple explanation, "We have not yet implemented interceptors in JBoss-4.0.04-GA". :^)
My thanks in advance for any assistance anyone can render.
- Saish
--- ERRORINTERCEPTOR.JAVA ---
public final class ErrorInterceptor extends Object {
@AroundInvoke
public final Object isDatabaseAlive(final InvocationContext ctx)
throws Exception {
// NEITHER OF THESE EVER SHOW UP IN LOGS
System.err.println("DEBUG >>> GOTCHA!!!");
LOG.error("ErrorInterceptor executing method " +
ctx.getMethod().toGenericString());
try {
return ctx.proceed();
}
catch (Throwable cause) {
ErrorHandler.getInstance().process(cause);
if (cause instanceof RuntimeException) {
throw (RuntimeException) cause;
}
if (cause instanceof Error) {
throw (Error) cause;
}
if (cause instanceof Exception) {
throw (Exception) cause;
}
throw new UnexpectedError("Unknown exception received", cause);
}
}
}
--- HEARTBEATIMPL.JAVA ----
@Stateless
@Interceptors ({xxx.xxx.xxx.core.aspect.aop.ErrorInterceptor.class})
@Local ({Heartbeat.class})
@Remote ({Heartbeat.class})
@LocalBinding (jndiBinding="local:xxx/xxx/core/aspect/remote/Heartbeat")
@RemoteBinding (jndiBinding="remote:xxx/xxx/core/aspect/remote/Heartbeat")
public final class HeartbeatImpl extends Object
implements Heartbeat {
public final boolean isDatabaseAlive() throws Exception {
if (true) {
throw new Exception("Foo bar!!!"); // TO TEST ERROR HANDLER
}
try {
if (dataSource == null) {
return false;
}
Connection conn = dataSource.getConnection();
if (conn == null) {
return false;
}
conn.close();
return true;
}
catch (SQLException e) {
e.printStackTrace();
return false;
}
catch (RuntimeException e) {
e.printStackTrace();
return false;
}
}
}
-- STACK TRACE (Note: error is forced by code above) ---
2006-07-05 15:12:32,392 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/mortrac].[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.Exception: Foo bar!!!
at xxx.xxx.xxx.core.aspect.remote.HeartbeatImpl.isDatabaseAlive(HeartbeatImpl.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)