if (logger.isInfoEnabled()) {
            logger.info("Deleting document words: index={}", index);
        }
        return deleteWordsByKind(index, FieldNames.DOC_FREQ, SuggestItem.Kind.DOCUMENT, item -> item.setDocFreq(0), SuggestItem.Kind.QUERY,
                SuggestItem.Kind.USER);
    }

    /**
     * Deletes query words (words with QUERY_FREQ >= 1 that don't have DOCUMENT or USER kinds).
     *

            items.add(new SuggestItem(new String[] { "マルチワード" + i, "fuga" }, readings, new String[] { "content" }, 0, 15 + i, -1, tags,
                    roles, null, SuggestItem.Kind.QUERY));
        }

        return items.toArray(new SuggestItem[items.size()]);
    }

    private SuggestItem[] getItemSet2() {
        List<SuggestItem> items = new ArrayList<>();

        {

        QueryLog queryLog = new QueryLog("content:検索エンジン", null);
        List<SuggestItem> items = defaultContentsParser.parseQueryLog(queryLog, supportedFields, tagFieldNames, roleFieldName,
                createDefaultReadingConverter(), createDefaultNormalizer());
        SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals(SuggestItem.Kind.QUERY, item.getKinds()[0]);
        assertEquals(1, item.getQueryFreq());

        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        SuggestItem item = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        suggester.indexer().index(item);
        suggester.refresh();

        words.add("word1");

        List<SuggestItem> items = new ArrayList<>();
        String[][] readings = new String[1][];
        readings[0] = new String[] { "word1" };
        items.add(new SuggestItem(new String[] { "word1" }, readings, new String[] { "content" }, 0, 10, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.QUERY));

        SuggestItem[] items = new SuggestItem[1];
        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        items[0] = new SuggestItem(new String[] { "test" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, new String[] { "en" }, SuggestItem.Kind.DOCUMENT);

        String[][] readings = new String[1][];
        readings[0] = new String[] { "filtered" };
        SuggestItem item = new SuggestItem(new String[] { "filtered" }, readings, new String[] { "content" }, 1, 0, -1,
                new String[] { "tag1" }, new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        SuggestIndexResponse response = suggester.indexer().index(item);

    @Test
    public void testCreateBulkLineWithMinimalItem() {
        // Test with minimal SuggestItem
        SuggestItem item = new SuggestItem(new String[] { "minimal" }, new String[0][0], new String[0], 0, // queryFreq
                0, // docFreq
                1.0f, // userBoost
                new String[0], new String[0], new String[0], SuggestItem.Kind.DOCUMENT);
        item.setTimestamp(ZonedDateTime.now());

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.request.suggest;

import java.util.List;

import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.request.Response;

/**
 * Represents a response for a suggest request.

            final boolean update) {
        final BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();

        final SuggestItem[] mergedItems = mergeItems(items);
        if (mergedItems.length == 0) {
            return new SuggestWriterResult();
        }

        for (final SuggestItem item : mergedItems) {