映射诊断上下文日志记录，在java中使用播放帧wok和akka

我正在尝试在java中播放过滤器中的mdc日志记录，用于所有请求，我在scala中遵循本教程并尝试转换为java http://yanns.github.io/blog/2014/05/04/slf4j-mapped-diagnostic-context-mdc-with-play-framework/

但 mdc 仍未传播到所有执行上下文。我正在使用这个 dispathcher 作为默认调度程序，但它有很多执行上下文。我需要将 mdc 传播到所有执行上下文

下面是我的Java代码

import java.util.Map;

import org.slf4j.MDC;

import scala.concurrent.ExecutionContext;
import scala.concurrent.duration.Duration;
import scala.concurrent.duration.FiniteDuration;
import akka.dispatch.Dispatcher;
import akka.dispatch.ExecutorServiceFactoryProvider;
import akka.dispatch.MessageDispatcherConfigurator;

public class MDCPropagatingDispatcher extends Dispatcher {
    public MDCPropagatingDispatcher(
            MessageDispatcherConfigurator _configurator, String id,
            int throughput, Duration throughputDeadlineTime,
            ExecutorServiceFactoryProvider executorServiceFactoryProvider,
            FiniteDuration shutdownTimeout) {
        super(_configurator, id, throughput, throughputDeadlineTime,
                executorServiceFactoryProvider, shutdownTimeout);

    }

    @Override
    public ExecutionContext prepare() {
        final Map<String, String> mdcContext = MDC.getCopyOfContextMap();
        return new ExecutionContext() {

            @Override
            public void execute(Runnable r) {
                Map<String, String> oldMDCContext = MDC.getCopyOfContextMap();
                setContextMap(mdcContext);
                try {
                    r.run();
                } finally {
                    setContextMap(oldMDCContext);
                }
            }

            @Override
            public ExecutionContext prepare() {
                return this;
            }

            @Override
            public void reportFailure(Throwable t) {
                play.Logger.info("error occured in dispatcher");
            }

        };
    }

    private void setContextMap(Map<String, String> context) {
        if (context == null) {
            MDC.clear();
        } else {
            play.Logger.info("set context "+ context.toString());
            MDC.setContextMap(context);
        }
    }
}



import java.util.concurrent.TimeUnit;

import scala.concurrent.duration.Duration;
import scala.concurrent.duration.FiniteDuration;

import com.typesafe.config.Config;

import akka.dispatch.DispatcherPrerequisites;
import akka.dispatch.MessageDispatcher;
import akka.dispatch.MessageDispatcherConfigurator;

public class MDCPropagatingDispatcherConfigurator extends
        MessageDispatcherConfigurator {
    private MessageDispatcher instance;

    public MDCPropagatingDispatcherConfigurator(Config config,
            DispatcherPrerequisites prerequisites) {
        super(config, prerequisites);
        Duration throughputDeadlineTime = new FiniteDuration(-1,
                TimeUnit.MILLISECONDS);
        FiniteDuration shutDownDuration = new FiniteDuration(1,
                TimeUnit.MILLISECONDS);
        instance = new MDCPropagatingDispatcher(this, "play.akka.actor.contexts.play-filter-context",
                100, throughputDeadlineTime,
                configureExecutor(), shutDownDuration);
    }

    public MessageDispatcher dispatcher() {
        return instance;
    }

}

过滤器拦截器

public class MdcLogFilter implements EssentialFilter {
@Override
public EssentialAction apply(final EssentialAction next) {
    return new MdcLogAction() {
        @Override
        public Iteratee<byte[], SimpleResult> apply(
                final RequestHeader requestHeader) {
            final String  uuid = Utils.generateRandomUUID();
            MDC.put("uuid", uuid);
            play.Logger.info("request started"+uuid);
            final ExecutionContext playFilterContext = Akka.system()
                    .dispatchers()
                    .lookup("play.akka.actor.contexts.play-custom-filter-context");
            return next.apply(requestHeader).map(
                    new AbstractFunction1<SimpleResult, SimpleResult>() {
                        @Override
                        public SimpleResult apply(SimpleResult simpleResult) {
                            play.Logger.info("request ended"+uuid);
                            MDC.remove("uuid");
                            return simpleResult;
                        }
                    }, playFilterContext);

        }

        @Override
        public EssentialAction apply() {
            return next.apply();
        }
    };
}

}