private static final String RELOCATING_SHARDS = "relocating_shards";
    private static final String INITIALIZING_SHARDS = "initializing_shards";
    private static final String UNASSIGNED_SHARDS = "unassigned_shards";

    private final int status;

    private final String clusterName;

    private final String clusterStatus;

    private String message = StringUtil.EMPTY;

    /**

        assertTrue(mockConfig.getApiPingEsFieldSet().contains("initializing_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("unassigned_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("delayed_unassigned_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("number_of_pending_tasks"));