/**
     * Gets the timestamp when the transfer of this artifact was started.
     *
     * @return The timestamp when the transfer of this artifact was started.
     */
    long getTransferStartTime();

        return getRepositoryUrl() + getName();
    }

    @Override
    public long getContentLength() {
        return resource.getContentLength();
    }

    @Override
    public long getTransferStartTime() {
        return transferStartTime;
    }

    @Override
    public String toString() {
        return getUrl();
    }