AsyncTaskLoader that can be interrupted by calling cancelLoadInBackground

InterruptibleAsyncTaskLoader.java

package io.github.ncruces.utils;

import android.content.AsyncTaskLoader;
import android.content.Context;
import android.os.OperationCanceledException;

import static java.lang.Thread.currentThread;
import static java.lang.Thread.interrupted;

public abstract class InterruptibleAsyncTaskLoader<D> extends AsyncTaskLoader<D> {
    private volatile Thread thread;

    public InterruptibleAsyncTaskLoader(Context context) {
        super(context);
    }

    public boolean isLoadInBackgroundRunning() {
        return thread != null;
    }

    @Override
    public void cancelLoadInBackground() {
        Thread t = thread;
        if (t != null) t.interrupt();
    }

    @Override
    public final D loadInBackground() {
        try {
            thread = currentThread();
            return doLoadInBackground();
        } catch (InterruptedException e) {
            OperationCanceledException oce = new OperationCanceledException(e.toString());
            oce.initCause(e);
            throw oce;
        } finally {
            thread = null;
            interrupted();
        }
    }

    public abstract D doLoadInBackground() throws InterruptedException;
}