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Akka/Scala example source code file (ActorWithMDC.java)

This example Akka source code file (ActorWithMDC.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

actor, actorwithmdc, akka, diagnosticloggingadapter, event, integer, log, map, mdc, no, null, object, string

The ActorWithMDC.java Akka example source code

package akka.event;

import akka.actor.UntypedActor;

import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

public class ActorWithMDC extends UntypedActor {

    private final DiagnosticLoggingAdapter logger = Logging.getLogger(this);

    @Override
    public void onReceive(Object message) throws Exception {
        Log log = (Log) message;

        Map<String, Object> mdc;
        if(log.message.startsWith("No MDC")) {
            mdc = Collections.emptyMap();
        } else if(log.message.equals("Null MDC")) {
            mdc = null;
        } else {
            mdc = new LinkedHashMap<String, Object>();
            mdc.put("messageLength", log.message.length());
        }
        logger.setMDC(mdc);

        switch (log.level()) {
            case 1:
                logger.error(log.message);
                break;
            case 2:
                logger.warning(log.message);
                break;
            case 3:
                logger.info(log.message);
                break;
            default:
                logger.debug(log.message);
                break;
        }

        logger.clearMDC();
    }

    public static class Log {
        private final Object level;
        public final String message;

        public Log(Object level, String message) {
            this.level = level;
            this.message = message;
        }

        public int level() {
            return (Integer) this.level;
        }
    }


}

Other Akka source code examples

Here is a short list of links related to this Akka ActorWithMDC.java source code file:

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