**Index Lifecycle:**
```java
suggester.createIndexIfNothing();      // Initial setup
suggester.createNextIndex();            // Create new index
// ... indexing operations ...
suggester.switchIndex();                // Switch to new index
suggester.removeDisableIndices();       // Cleanup old indices
```

**Async Operations:**
```java
suggester.suggest()
    .setQuery("search")
    .execute()

 */
package org.codelibs.fess.suggest;

import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.codelibs.fess.suggest.analysis.SuggestAnalyzer;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.normalizer.Normalizer;

Shinsuke Sugaya <******@****.***> 1524119770 +0900

 */
package org.codelibs.fess.suggest.request.popularwords;

import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.constants.SuggestConstants;

 */
package org.codelibs.fess.suggest.request.suggest;

import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.constants.SuggestConstants;
import org.codelibs.fess.suggest.entity.SuggestItem;

 */
package org.codelibs.fess.suggest.request.popularwords;

import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
import static org.junit.Assert.assertNotNull;

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.constants.SuggestConstants;
import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.opensearch.runner.OpenSearchRunner;

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

import java.util.List;

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

/**
 * Represents the response for popular words request.
 */
public class PopularWordsResponse implements Response {

        final String id = "BuildTest";
        final Suggester suggester = Suggester.builder().build(runner.client(), id);

        assertNotNull(suggester);
        assertNotNull(suggester.client);
        assertNotNull(suggester.indexer());
        assertNotNull(suggester.getNormalizer());
        assertNotNull(suggester.getReadingConverter());
        assertNotNull(suggester.settings());

 */
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.
 * This class holds the details of the response including the index, time taken, words, total count, and suggested items.
 */
public class SuggestResponse implements Response {

        runner.refresh();
        suggester = Suggester.builder().build(runner.client(), "SuggesterTest");
        suggester.createIndexIfNothing();
    }

    @Test
    public void test_Read() throws Exception {
        String indexName = "test-index";
        Client client = runner.client();
        SuggestSettings settings = suggester.settings();
        int num = 10000;