* concurrently.
 *
 * @since 4.0.0
 */
public final class SimplexTransferListener extends AbstractTransferListener {
    private static final Logger LOGGER = LoggerFactory.getLogger(SimplexTransferListener.class);
    private static final int QUEUE_SIZE = 1024;
    private static final int BATCH_MAX_SIZE = 500;
    private final TransferListener delegate;

            public void transferSucceeded(TransferEvent event) {}

            @Override
            public void transferFailed(TransferEvent event) {}
        };

        SimplexTransferListener listener = new SimplexTransferListener(delegate);

        TransferResource resource =
                new TransferResource(null, null, "http://maven.org/test/test-resource", new File("file"), null);

        startLatch = new CountDownLatch(size);
        endLatch = new CountDownLatch(size);
        Map<String, String> output = new ConcurrentHashMap<String, String>();

        TransferListener listener = new SimplexTransferListener(new ConsoleMavenTransferListener(
                new JLineMessageBuilderFactory(),
                new PrintStream(System.out) {

                    @Override
                    public void print(Object o) {

import org.eclipse.aether.transfer.TransferResource;

/**
 * Console download progress meter.
 * <p>
 * This listener is not thread-safe and should be wrapped in the {@link SimplexTransferListener} in a multi-threaded scenario.
 */
public class ConsoleMavenTransferListener extends AbstractMavenTransferListener {