*/
    public PluginHelper() {
        // Default constructor
    }

    /**
     * Retrieves available artifacts of the specified type from configured repositories.
     *
     * @param artifactType the type of artifacts to retrieve
     * @return an array of available artifacts
     * @throws PluginException if failed to access the artifact repository
     */

    private static final String[] CAT_NAMES =
            { "aliases", "allocation", "count", "fielddata", "health", "indices", "master", "nodeattrs", "nodes", "pending_tasks",
                    "plugins", "recovery", "repositories", "thread_pool", "shards", "segments", "snapshots", "templates" };

    // ===================================================================================