Elastic Search Java API 汇总

常用的elastic search java API：

获取索引列表：

  public static List<String> listIndex() {        List<String> list = new ArrayList<>();        GetIndexRequestBuilder builder = client.admin().indices().prepareGetIndex();        GetIndexResponse response = builder.get();        Collections.addAll(list, response.getIndices());        return list;    }

获取索引状态列表：

public Map<String, Object> getIndexState(TransportClient client) {        Map<String, Object> indexStateMap = new HashedMap();        List<String> indexList = new ArrayList<>();        List<String> openIndexList = new ArrayList<>();        List<String> closeIndexList = new ArrayList<>();        ClusterStateResponse response = client.admin().cluster().prepareState().execute().actionGet();        Iterator<ObjectObjectCursor<String, IndexMetaData>> indexIterator = response.getState().getMetaData().getIndices().iterator();        while (indexIterator.hasNext()) {            ObjectObjectCursor objectIndex = indexIterator.next();            String index = objectIndex.key.toString();            if (!index.contains(".")) {                IndexMetaData indexMetaData = (IndexMetaData) objectIndex.value;                String indexState = indexMetaData.getState().name();                if (indexState.contains("OPEN")) {                    openIndexList.add(index);                } else closeIndexList.add(index);                indexList.add(index);            }        }        indexStateMap.put("indexList", indexList);        indexStateMap.put("openIndexList", openIndexList);        indexStateMap.put("closeIndexList", closeIndexList);        return indexStateMap;    }

注：关闭的索引，无法获取health状态。