Job queueing...

Kai Reinhard

28.51.2018 f9f5572180ea5a2b47201933895dfcd10077aa4f

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package de.micromata.borgbutler.jobs;
 
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
 
public class JobQueue {
    private ConcurrentLinkedQueue<AbstractJob> queue = new ConcurrentLinkedQueue<>();
    private List<AbstractJob> done = new LinkedList<>();
    Executor executor = Executors.newSingleThreadExecutor();
 
    public AbstractJob appendOrJoin(AbstractJob job) {
        synchronized (queue) {
            if (queue.contains(job)) {
                for (AbstractJob queuedJob : queue) {
                    if (queuedJob.equals(job)) {
                        return queuedJob;
                    }
                }
            }
            queue.add(job);
            return job;
        }
    }
}