/**
 * Executable class for generating thumbnails for indexed documents.
 * This class provides a command-line interface for thumbnail generation tasks.
 */
public class ThumbnailGenerator {

    private static final Logger logger = LogManager.getLogger(ThumbnailGenerator.class);

    /**
     * OpenSearch client for accessing indexed documents.
     */
    @Resource

    }

    @Override
    public boolean hasNext() {
        return index < items.length;
    }

    @Override
    public T next() {
        try {
            final T o = items[index];
            index++;
            return o;
        } catch (final IndexOutOfBoundsException e) {
            throw new NoSuchElementException("index=" + index);
        }
    }

    @Override
    public void remove() {

      int i = 0;
      for (ListenableFuture<? extends InputT> future : futures) {
        int index = i++;
        if (future.isDone()) {
          processAllMustSucceedDoneFuture(index, future);
        } else {
          future.addListener(
              () -> processAllMustSucceedDoneFuture(index, future), directExecutor());
        }
      }
    } else {
      /*

    }
    int mask = hashTableMask();
    int index =
        CompactHashing.remove(
            object,
            /* value= */ null,
            mask,
            requireTable(),
            requireEntries(),
            requireElements(),
            /* values= */ null);
    if (index == -1) {
      return false;
    }

    moveLastEntry(index, mask);
    size--;
    incrementModCount();

import org.opensearch.index.query.RangeQueryBuilder;
import org.opensearch.index.query.RegexpQueryBuilder;
import org.opensearch.index.query.SpanTermQueryBuilder;
import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.TermsQueryBuilder;
import org.opensearch.index.query.WildcardQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;

import org.opensearch.index.query.RangeQueryBuilder;
import org.opensearch.index.query.RegexpQueryBuilder;
import org.opensearch.index.query.SpanTermQueryBuilder;
import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.TermsQueryBuilder;
import org.opensearch.index.query.WildcardQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;

        for (int i = 0; i < threadCount; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                String thumbnailId = "concurrent-" + index;
                File outputFile = new File(tempDir.toFile(), "concurrent-" + index + ".png");
                results[index] = thumbnailGenerator.generate(thumbnailId, outputFile);
            });
            threads[i].start();

						if rv.Len() == 0 {
							builder.AddVar(builder, nil)
						} else {
							for i := 0; i < rv.Len(); i++ {
								if i > 0 {
									builder.WriteByte(',')
								}
								builder.AddVar(builder, rv.Index(i).Interface())
							}
						}
					default:
						builder.AddVar(builder, expr.Vars[idx])
					}
				}
			} else {
				builder.AddVar(builder, expr.Vars[idx])
			}

			idx++
		} else {

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocumentUtil;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.script.Script;

/**
 * Job class for updating label information in the search index.
 * This job processes documents and updates their label fields based on URL pattern matching.
 */
public class UpdateLabelJob {

                final String iface = (String) INTERFACES.get(lep.substring(6));
                if (iface != null) {
                    int c, p;
                    c = iface.indexOf(':');
                    p = iface.indexOf('.', c + 1);
                    uuid = new UUID(iface.substring(0, c));
                    major = Integer.parseInt(iface.substring(c + 1, p));