class Echo implements ProgressCheck {

    @Override
    public void beforeExtract(final PackageId packageId, final Session inspectSession,
                              final PackageProperties packageProperties, final MetaInf metaInf,
                              final List<PackageId> subpackages) throws RepositoryException {
        echo("beforeExtract(packageId: %s, ..., subpackages: %s)", packageId, subpackages);
    }

}