(There's no need to copy my personal email address. Please do not).
What we do is this.
1. We have a custom RuntimeException:
public class ServerSideException extends RuntimeException implements
IsSerializable
{
private static final long serialVersionUID = 1L;
@SuppressWarnings("unused")
private ServerSideException()
{ /* For GWT. */ }
public ServerSideException(Throwable t)
{
super(t);
}
}
which can be seen by the GWT compiler and is declared on ALL RPC methods.
2. All of our RPC endpoints are spring beans.
3. We have a simple throws advice:
public class RpcErrorAdvice implements ThrowsAdvice
{
private static final Logger log =
Logger.getLogger(RpcErrorAdvice.class); //NOPMD
public void afterThrowing(final Throwable t) throws Throwable
{
log.error(t);
throw new ServerSideException(t);
}
}
4. which listens to all beans derived from RemoteService:
<bean class = "org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"/>
<bean name = "rpcErrorAdvice" class =
"net.purpletube.cerberus.server.springintegration.RpcErrorAdvice" />
<bean class ="org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor">
<property name = "advice" ref = "rpcErrorAdvice"/>
<property name = "expression" value = "execution(public *
com.google.gwt.user.client.rpc.RemoteService+.*(..))"/>
</bean>
That's it.
--
Thanks
Paul
Paul Grenyer
e: paul.grenyer@gmail.com
b: paulgrenyer.blogspot.com
t: pjgrenyer
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