suggester.indexer().deleteBadWord("[");
        suggester.indexer().deleteBadWord("ｴﾝｼﾞﾝ");
        assertEquals(0, suggester.settings().badword().get(false).length);
    }

    @Test
    public void test_popularWords() throws Exception {
        SuggestItem[] items = getPopularWordsItemSet2();
        suggester.indexer().index(items);
        suggester.refresh();

            suggester.indexer().addBadWord(word, apply);
        }
        refresh();
    }

    /**
     * Adds a bad word to the suggest index.
     *
     * @param badWord The bad word to add.
     * @param apply   true to apply the changes immediately.
     */
    public void addBadWord(final String badWord, final boolean apply) {
        suggester.indexer().addBadWord(badWord, apply);

suggester.indexer()
    .indexFromDocument(reader, 2, 100)  // threads=2, batch=100
    .getResponse();
```

### Index from Query Logs

```java
import org.codelibs.fess.suggest.index.contents.querylog.QueryLog;

// Add suggestions from search query logs
QueryLog queryLog = new QueryLog("user search query", "user123");
suggester.indexer().indexFromQueryLog(queryLog);
```

### Popular Words Analytics

```java

        }
    }

    private static class MockSuggester {
        private MockSuggestIndexer indexer = new MockSuggestIndexer();
        private MockSuggestSettings settings = new MockSuggestSettings();

        public MockSuggestIndexer indexer() {
            return indexer;
        }

        public MockSuggestSettings settings() {
            return settings;
        }

import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.sort.SortOrder;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;
import jakarta.annotation.Resource;

/**
 * IndexUpdater is responsible for updating the search index with crawled document data.

        private int maxEmptyListCount = 10;

        @Override
        public Integer getIndexerWebfsUpdateIntervalAsInteger() {
            return 100;
        }

        @Override
        public Integer getIndexerWebfsMaxEmptyListCountAsInteger() {
            return maxEmptyListCount;
        }

        @Override
        public Integer getIndexerWebfsMaxDocumentCacheSizeAsInteger() {
            return 100;
        }

 *   <li>{@link #createIndexIfNothing()}: Creates a new index if no index exists.</li>
 *   <li>{@link #createNextIndex()}: Creates a new index and replaces the current update alias with the new index.</li>
 *   <li>{@link #switchIndex()}: Switches the search alias to the current update index.</li>
 *   <li>{@link #removeDisableIndices()}: Removes disabled indices.</li>
 *   <li>{@link #indexer()}: Creates a new SuggestIndexer for indexing suggestions.</li>

        this.crawlingExecutionInterval = crawlingExecutionInterval;
    }

    /**
     * Sets the thread priority for index updater operations.
     *
     * @param indexUpdaterPriority The index updater thread priority
     */
    public void setIndexUpdaterPriority(final int indexUpdaterPriority) {
        this.indexUpdaterPriority = indexUpdaterPriority;
    }

     * @return The file type helper.
     */
    public static FileTypeHelper getFileTypeHelper() {
        return getComponent(FILE_TYPE_HELPER);
    }

    /**
     * Gets the index updater component.
     * @return The index updater.
     */
    public static IndexUpdater getIndexUpdater() {
        return getComponent(INDEX_UPDATER);
    }

    /**
     * Gets the key match helper component.

    ArrayList<Integer> indexes = new ArrayList<>();
    ImmutableMap.Builder<Integer, Double> expectedBuilder = ImmutableMap.builder();
    for (int index = 0; index <= 100; index++) {
      indexes.add(index);
      expectedBuilder.put(index, expectedLargeDatasetPercentile(index));
    }
    Random random = new Random(770683168895677741L);
    Collections.shuffle(indexes, random);