JavaRepository.java 文件源码

/**
 * This version is different as we need to re-write the filename with the
 * timestamp for the latest version.
 * 
 * @param key
 *            IndexKey to find the Artifact in the Index
 * @param filename
 *            Filename from the request
 * @return StreamingOutput from the Storage Layer
 */
protected StreamingOutput getSnapshotArtifact(JavaIndexKey key, String filename)
{
    logger.info("[Downloading Snapshot] " + key);
    try
    {
        if (getIndex().isArtifact(key))
        {
            JavaIndexArtifact ia = (JavaIndexArtifact) getIndex().getArtifact(key);
            String snapshotFilename = filename.replace(key.getVersion(), ia.getSnapshotVersion());
            return getStorage().getArtifactStream(ia, snapshotFilename);
        }
        else
        {
            throw new NotFoundException();
        }
    }
    catch (IndexException ie)
    {
        throw new InternalServerErrorException();
    }
}