"application/vnd.groove-account",
				"application/vnd.groove-help",
				"application/vnd.groove-identity-message",
				"application/vnd.groove-injector",
				"application/vnd.groove-tool-message",
				"application/vnd.groove-tool-template",
				"application/vnd.groove-vcard",
				"application/vnd.handheld-entertainment+xml",
				"application/vnd.hbci",
				"application/vnd.hcl-bireports",
				"application/vnd.hhe.lesson-player",

  </mime-type>
  <mime-type type="application/vnd.groove-injector">
    <glob pattern="*.grv"/>
  </mime-type>
  <mime-type type="application/vnd.groove-tool-message">
    <glob pattern="*.gtm"/>
  </mime-type>
  <mime-type type="application/vnd.groove-tool-template">
    <glob pattern="*.tpl"/>
  </mime-type>
  <mime-type type="application/vnd.groove-vcard">
    <glob pattern="*.vcg"/>
  </mime-type>

            final long took) {
        this.numberOfSuggestDocs = numberOfSuggestDocs;
        this.numberOfInputDocs = numberOfInputDocs;
        this.took = took;
        if (errors == null || errors.isEmpty()) {
            hasError = false;
        } else {
            hasError = true;
            errors.forEach(this.errors::add);
        }
    }

    protected final long took;

    /**
     * Constructor for SuggestDeleteResponse.
     * @param errors A list of Throwables representing errors.
     * @param took The time taken for the operation in milliseconds.
     */
    protected SuggestDeleteResponse(final List<Throwable> errors, final long took) {
        this.took = took;
        if (errors != null && !errors.isEmpty()) {

    }

    /**
     * Sets the thread pool.
     * @param threadPool The thread pool.
     * @return This builder instance.
     */
    public SuggesterBuilder threadPool(final ExecutorService threadPool) {
        this.threadPool = threadPool;
        return this;
    }

    /**
     * Sets the thread pool size.
     * @param threadPoolSize The thread pool size.
     * @return This builder instance.

 * It uses a ConcurrentMap to store the last access time for each host.
 * The delayBeforeProcessing method is overridden to introduce a delay before processing a URL,
 * ensuring that requests to the same host are not made too frequently.
 * The delay is calculated based on the configured delayMillisBeforeProcessing parameter.
 * If the time since the last request to the host is less than the configured delay,
 * the thread waits until the delay has elapsed.

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.pool;

import org.apache.commons.pool2.BasePooledObjectFactory;
import org.apache.commons.pool2.PooledObject;
import org.apache.commons.pool2.impl.DefaultPooledObject;
import org.codelibs.fess.crawler.container.CrawlerContainer;

});
```

## Performance Tuning

### Thread Configuration

```java
// Optimize thread pool settings
crawler.crawlerContext.setNumOfThread(20);           // Number of crawler threads
crawler.crawlerContext.setMaxThreadCheckCount(50);   // Thread monitoring frequency
```

### Connection Pool Tuning

```java
container.singleton("httpClient", HcHttpClient.class, client -> {

 *   <li>{@link #popularWords()}: Creates a new PopularWordsRequestBuilder for querying popular words.</li>
 *   <li>{@link #refresh()}: Refreshes the suggestion indices.</li>
 *   <li>{@link #shutdown()}: Shuts down the thread pool.</li>
 *   <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 #analyzer} - Suggest analyzer.
 * <li>{@link #contentsParser} - Contents parser.
 * <li>{@link #suggestWriter} - Suggest writer.
 * <li>{@link #threadPool} - Executor service for thread pool.
 * </ul>
 */
public class SuggestIndexer {
    private final static Logger logger = LogManager.getLogger(SuggestIndexer.class);

    /** The suggest analyzer. */
    protected SuggestAnalyzer analyzer;