final BulkRequestBuilder bulkRequest = client.prepareBulk();
                    for (final SearchHit hit : hits) {
                        bulkRequest.add(client.prepareDelete().setIndex(hit.getIndex()).setId(hit.getId()));
                    }
                    return bulkRequest.execute();
                });
                if (bulkResponse.hasFailures()) {

    private void addMdcContext(Map<String, Object> context) {
        // Add MDC context efficiently
        context.put("thread", Thread.currentThread().getName());
        context.put("threadId", Thread.currentThread().getId());

        String sessionId = MDC.get("sessionId");
        if (sessionId != null) {
            context.put("sessionId", sessionId);
        }
        String userId = MDC.get("userId");

        suggester.indexer().index(item);
        suggester.refresh();

        SuggestDeleteResponse deleteResponse = suggester.indexer().delete(item.getId());

        assertNotNull(deleteResponse);
        assertFalse(deleteResponse.hasError());
    }

    @Test
    public void test_deleteByQueryString() throws Exception {

            }
            cb.query().addOrderBy_CreatedTime_Asc();
            cb.fetchFirst(fessConfig.getPageThumbnailQueueMaxFetchSizeAsInteger());
        }).stream().map(entity -> {
            idList.add(entity.getId());
            if (!cleanup) {
                return executorService.submit(() -> process(fessConfig, entity));
            }
            if (logger.isDebugEnabled()) {

 *
 * {@snippet :
 * ListenableFuture<Boolean> adminIsLoggedIn =
 *     FluentFuture.from(usersDatabase.getAdminUser())
 *         .transform(User::getId, directExecutor())
 *         .transform(ActivityService::isLoggedIn, threadPool)
 *         .catching(RpcException.class, e -> false, directExecutor());
 * }
 *
 * <h3>Alternatives</h3>
 *
 * <h4>Frameworks</h4>

                            throw new ArtifactResolutionException(
                                    "Unable to get dependency information for " + artifact.getId() + ": "
                                            + e.getMessage(),
                                    artifact,
                                    childRemoteRepositories,
                                    e);

                System.arraycopy(type2.getChallenge(), 0, sessionNonce, 0, 8);
                System.arraycopy(clientChallenge, 0, sessionNonce, 8, 8);

                final MessageDigest md4 = Crypto.getMD4();
                md4.update(passwordHash);
                final byte[] userSessionKey = md4.digest();

                final MessageDigest hmac = Crypto.getHMACT64(userSessionKey);

                            docMap.put(Constants.SCORE, score);
                        }
                    }

                    docMap.put(fessConfig.getIndexFieldId(), hit.getId());
                    docMap.put(fessConfig.getIndexFieldVersion(), hit.getVersion());
                    docMap.put(fessConfig.getIndexFieldSeqNo(), hit.getSeqNo());

                        }

                        if (!favoriteLogService.addUrl(userCode, (userInfo, favoriteLog) -> {
                            favoriteLog.setUserInfoId(userInfo.getId());
                            favoriteLog.setUrl(favoriteUrl);
                            favoriteLog.setDocId(docId);
                            favoriteLog.setQueryId(queryId);

        assertEquals(1, response.getNum());
        assertEquals("検索 エンジン", response.getWords().get(0));

        suggester.indexer().delete(items[0].getId());
        suggester.refresh();
        SuggestResponse response2 = suggester.suggest().setQuery("kensaku").setSuggestDetail(true).execute().getResponse();
        assertEquals(0, response2.getNum());
    }