/**
* Log any invocation timeout, but don't stop server from running
* 服务于服务提供者
*/
@Activate(group = Constants.PROVIDER)
public class TimeoutFilter implements Filter {
private static final Logger logger = LoggerFactory.getLogger(TimeoutFilter.class);
@Override
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
//获得开始时间
long start = System.currentTimeMillis();
//执行调用
Result result = invoker.invoke(invocation);
//计算耗时
long elapsed = System.currentTimeMillis() - start;
//超过提供者配置的timeout 配置 则打印告警日志
if (invoker.getUrl() != null
&& elapsed > invoker.getUrl().getMethodParameter(invocation.getMethodName(),
"timeout", Integer.MAX_VALUE)) {
if (logger.isWarnEnabled()) {
logger.warn("invoke time out. method: " + invocation.getMethodName()
+ " arguments: " + Arrays.toString(invocation.getArguments()) + " , url is "
+ invoker.getUrl() + ", invoke elapsed " + elapsed + " ms.");
}
}
return result;
}
}
