package org.nutz.lang.eject;
import java.lang.reflect.Method;
import org.nutz.lang.Lang;
import org.nutz.log.Log;
import org.nutz.log.Logs;
public class EjectByGetter implements Ejecting {
private static final Log log = Logs.get();
private Method getter;
public EjectByGetter(Method getter) {
this.getter = getter;
}
public Object eject(Object obj) {
try {
return null == obj ? null : getter.invoke(obj);
}
catch (Exception e) {
if (log.isInfoEnabled())
log.info("Fail to value by getter", e);
throw Lang.makeThrow( "Fail to invoke getter %s.'%s()' because [%s]: %s",
getter.getDeclaringClass().getName(),
getter.getName(),
Lang.unwrapThrow(e),
Lang.unwrapThrow(e).getMessage());
}
}
}