一直感觉spring-data-es封装的很迷..调用起来奇奇怪怪 还是封装一层方便自己调用吧

@Component
public class EsUtil {


    private static ElasticsearchRestTemplate elasticsearchRestTemplate;

    @Autowired
    public EsUtil(ElasticsearchRestTemplate elasticsearchRestTemplate) {
        EsUtil.elasticsearchRestTemplate = elasticsearchRestTemplate;
    }


    /**
     * 获取索引对应的别名
     */
    public static Set<String> getAlias(String index) {
        Preconditions.checkNotNull(index);
        final IndexOperations indexOps = elasticsearchRestTemplate.indexOps(IndexCoordinates.of(index));
        final Map<String, Set<AliasData>> aliases = indexOps.getAliasesForIndex(index);
        final Set<AliasData> dataSet = aliases.get(index);
        Set<String> set = new HashSet<>(dataSet.size());
        dataSet.forEach(aliasData -> set.add(aliasData.getAlias()));
        return set;
    }

    /**
     * 为索引添加别名
     *
     * @param index 真实索引
     * @param alias 别名
     */
    public static boolean addAlias(String index, String... alias) {
        Preconditions.checkNotNull(index);
        Preconditions.checkNotNull(alias);
        final IndexOperations indexOps = elasticsearchRestTemplate.indexOps(IndexCoordinates.of(index));
        AliasActions aliasActions = new AliasActions(new AliasAction.Add(
                AliasActionParameters.builder().withIndices(index).withAliases(alias).build()
        ));
        return indexOps.alias(aliasActions);
    }


    /**
     * 为索引删除
     *
     * @param index 真实索引
     * @param alias 别名
     */
    public static boolean delAlias(String index, String... alias) {
        Preconditions.checkNotNull(index);
        Preconditions.checkNotNull(alias);
        final IndexOperations indexOps = elasticsearchRestTemplate.indexOps(IndexCoordinates.of(index));
        AliasActions aliasActions = new AliasActions(new AliasAction.Remove(
                AliasActionParameters.builder().withIndices(index).withAliases(alias).build()
        ));
        return indexOps.alias(aliasActions);
    }


    /**
     * 为索引更换别名 旧的换为新的 不会判断旧的是否存在
     *
     * @param index    真实索引
     * @param oldAlias 要删除的别名
     * @param newAlias 要新增的别名
     */
    public static boolean replaceAlias(String index, String oldAlias, String newAlias) {
        Preconditions.checkNotNull(index);
        Preconditions.checkNotNull(oldAlias);
        Preconditions.checkNotNull(newAlias);
        final IndexOperations indexOps = elasticsearchRestTemplate.indexOps(IndexCoordinates.of(index));
        final AliasAction.Add add = new AliasAction.Add(AliasActionParameters.builder().withIndices(index).withAliases(newAlias).build());
        final AliasAction.Remove remove = new AliasAction.Remove(AliasActionParameters.builder().withIndices(index).withAliases(oldAlias).build());
        AliasActions aliasActions = new AliasActions(add, remove);
        return indexOps.alias(aliasActions);
    }
}