if (response.isExists()) {
                final GetAliasesResponse getAliasesResponse = client.admin().indices().prepareGetAliases(getUpdateAlias(index)).execute()
                        .actionGet(suggestSettings.getIndicesTimeout());
                getAliasesResponse.getAliases().keySet().forEach(prevIndices::add);

                .actionGet(this.settings.getIndicesTimeout());
    }

    protected void deleteAnalyzerSettings() {
        client.admin().indices().prepareDelete(analyzerSettingsIndexName).execute().actionGet(settings.getIndicesTimeout());
    }

    protected void createAnalyzerSettings(final String settings, final String mappings) {

                    .actionGet(settings.getIndexTimeout());
            client.admin().indices().prepareRefresh().setIndices(actualIndex).execute().actionGet(settings.getIndicesTimeout());
        } catch (final Exception e) {
            throw new SuggestSettingsException("Failed to add to array.", e);
        }
    }

                try {
                    client.admin().indices().prepareCreate(settingsIndexName).setSettings(loadIndexSettings(), XContentType.JSON).execute()
                            .actionGet(getIndicesTimeout());
                } catch (final IOException e) {
                    throw new SuggesterException(e);
                }
            }

                }
            } finally {
                SuggestUtil.deleteScrollContext(client, scrollId);
            }
            client.admin().indices().prepareRefresh(index).execute().actionGet(settings.getIndicesTimeout());
        } catch (final Exception e) {
            throw new SuggesterException("Failed to exec delete by query.", e);
        }

        return true;
    }

                        numberOfInputDocs += res.getNumberOfInputDocs();
                        client.admin().indices().prepareRefresh(index).execute().actionGet(settings.getIndicesTimeout());
                        docs.clear();

                        waitController.run();
                    }
                }

                deferred.resolve(