return "filetype";
                case FessConfig.INDEX_FIELD_FILENAME:
                    return "filename";
                case FessConfig.INDEX_FIELD_THUMBNAIL:
                    return "thumbnail";
                case FessConfig.INDEX_FIELD_MIMETYPE:
                    return "mimetype";

                // Crawler settings
                case FessConfig.CRAWLER_DATA_SERIALIZER:

import org.codelibs.fess.helper.CrawlingInfoHelper;
import org.codelibs.fess.helper.LanguageHelper;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.thumbnail.ThumbnailManager;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.opensearch.action.bulk.BulkResponse;

            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override

        $(img)
          .parent()
          .parent()
          .css("display", "none");
      }
      imgData = null;
    });
    imgData.src = url;
  };

  $("img.thumbnail").each(function() {
    $(this).css(
      "background-image",
      'url("' + contextPath + '/images/loading.gif")'
    );
    loadImage(this, $(this).attr("data-src"), IMG_LOADING_MAX);
  });
  

            public String getIndexFieldDigest() {
                return "digest";
            }

            @Override
            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override

```

### Step 3: Test with Thumbnailer

We used [Thumbnailer](https://github.com/minio/thumbnailer) to listen for MinIO notifications when a new JPEG file is uploaded (HTTP PUT). Triggered by a notification, Thumbnailer uploads a thumbnail of new image to MinIO server. To start with, download and install Thumbnailer.

```
git clone https://github.com/minio/thumbnailer/
npm install
```

									<filtering>true</filtering>
									<includes>
										<include>bin/fess</include>
										<include>bin/fess.in.sh</include>
										<include>bin/generate-thumbnail</include>
										<include>bin/plugin.xml</include>
									</includes>
								</resource>
							</resources>
						</configuration>
					</execution>
					<execution>

labels.virtual_host_value=Virtual Host
labels.append_query_param_enabled=Append Search Parameters
labels.login_required=Login Required
labels.result_collapsed=Collapse Duplicate Results
labels.login_link=Show Login Link
labels.thumbnail=Show Thumbnail
labels.ignore_failure_type=Ignore Failure Types
labels.failure_count_threshold=Failure Count Threshold
labels.popular_word_word_enabled=Popular Word Response
labels.supported_search_web=Web

import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.helper.KeyMatchHelper;
import org.codelibs.fess.helper.ProcessHelper;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.thumbnail.ThumbnailManager;
import org.codelibs.fess.mylasta.direction.FessConfig;

import org.codelibs.fess.opensearch.config.exbhv.ScheduledJobBhv;
import org.codelibs.fess.opensearch.config.exentity.ScheduledJob;

            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override