import org.eclipse.aether.transfer.TransferResource;

/**
 * AbstractMavenTransferListener
 */
public abstract class AbstractMavenTransferListener extends AbstractTransferListener {
    public static final String STYLE = ".transfer:-faint";

    protected final MessageBuilderFactory messageBuilderFactory;
    protected final PrintWriter out;

    protected AbstractMavenTransferListener(MessageBuilderFactory messageBuilderFactory, PrintStream out) {

 * <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 {

    private final Map<TransferResourceIdentifier, TransferResourceAndSize> transfers = new LinkedHashMap<>();
    private final FileSizeFormat format = new FileSizeFormat(); // use in a synchronized fashion