### Popular Words Analytics

```java
import org.codelibs.fess.suggest.request.popularwords.PopularWordsResponse;

PopularWordsResponse popularWords = suggester.popularWords()
    .setSize(20)                    // top 20 words
    .setQuery("tech*")              // filter pattern
    .execute()
    .getResponse();

popularWords.getItems().forEach(item -> {
    System.out.println("Popular: " + item.getText() + 

import org.codelibs.fess.suggest.index.contents.querylog.QueryLog;
import org.codelibs.fess.suggest.index.contents.querylog.QueryLogReader;
import org.codelibs.fess.suggest.request.popularwords.PopularWordsResponse;
import org.codelibs.fess.suggest.request.suggest.SuggestResponse;
import org.codelibs.fess.suggest.settings.AnalyzerSettings;
import org.codelibs.fess.suggest.settings.SuggestSettings;

import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.index.SuggestIndexer;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.request.popularwords.PopularWordsRequestBuilder;
import org.codelibs.fess.suggest.request.suggest.SuggestRequestBuilder;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.opensearch.action.admin.indices.alias.Alias;