import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.sort.SortBuilder;

public class ESSourceReader implements DocumentReader {
    private static final Logger logger = LogManager.getLogger(ESSourceReader.class);

    protected final Queue<Map<String, Object>> queue = new ConcurrentLinkedQueue<>();
    protected final AtomicBoolean isFinished = new AtomicBoolean(false);

    }

    @Test
    public void test_getLimitDocNum() throws Exception {
        assertEquals(10, ESSourceReader.getLimitDocNum(100, 10, -1));
        assertEquals(25, ESSourceReader.getLimitDocNum(50, 50, -1));
        assertEquals(10, ESSourceReader.getLimitDocNum(50, 50, 10));
    }

    @Test
    public void test_sort() throws Exception {
        String indexName = "test-index";

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.index.contents.document.DocumentReader;
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;
import org.codelibs.fess.suggest.request.suggest.SuggestResponse;

public class SuggestIndex {
    public SuggestResponse suggest(String query) {
        return ComponentsUtil.suggester.suggest()

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        suggester.indexer().indexFromDocument(() -> {
            final ESSourceReader reader = new ESSourceReader(ComponentUtil.getSearchEngineClient(), suggester.settings(),
                    fessConfig.getIndexDocumentSearchIndex());
            reader.setScrollSize(fessConfig.getSuggestSourceReaderScrollSizeAsInteger());

suggester.indexer().index(new SuggestItem(new String[] { "検索", "エンジン" }, readings, 1, tags, roles, SuggestItem.Kind.DOCUMENT));
```

### Add suggest documents from source of index

```java
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "contentIndexName",
    "contentTypeName");
suggester.indexer().indexFromDocument(reader, 2, 100).getResponse();
```

### Add suggest document from queryLog

```

### Add suggest documents from source of index

Elasticsearchにインデックスされているコンテンツを解析してサジェストドキュメントを生成します。

```java
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "contentIndexName",
    "contentTypeName");
suggester.indexer().indexFromDocument(reader, 2, 100).getResponse();
```

### Add suggest document from queryLog

        bulkRequestBuilder.execute().actionGet();
        runner.refresh();

        CountDownLatch latch = new CountDownLatch(1);
        AtomicInteger numObInputDoc = new AtomicInteger(0);
        ESSourceReader reader = new ESSourceReader(client, suggester.settings(), indexName);
        reader.setScrollSize(1000);

        suggester.indexer().indexFromDocument(() -> reader, 1000, 100).then(response -> {