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package com.zipwhip.concurrent;

import com.zipwhip.events.Observer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Created with IntelliJ IDEA.
 * User: Michael
 * Date: 9/10/12
 * Time: 6:15 PM
 * To change this template use File | Settings | File Templates.
 */
public class OnlyRunIfSuccessfulObserverAdapter extends ObserverAdapter> {

    private static final Logger LOGGER = LoggerFactory.getLogger(OnlyRunIfSuccessfulObserverAdapter.class);

    public OnlyRunIfSuccessfulObserverAdapter(Observer> observer) {
        super(observer);
    }

    @Override
    public void notify(Object sender, ObservableFuture future) {
        synchronized (future) {
            if (future.isSuccess()) {
                if (LOGGER.isTraceEnabled()) {
                    LOGGER.trace(String.format("Successful, so notifying %s of %s", getObserver(), future));
                }

                super.notify(sender, future);
            } else {
                LOGGER.warn(String.format("Not successful, so not notifying %s of %s", getObserver(), future));
            }
        }
    }
}