*/
package org.codelibs.fess.thumbnail.impl;

import java.io.File;

public class EmptyGenerator extends BaseThumbnailGenerator {

    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        return false;
    }

    @Override
    public void destroy() {
        // nothing
    }

        final ExecutorService executorService = Executors.newFixedThreadPool(options.numOfThreads);
        try {
            while (count != 0) {
                count = ComponentUtil.getThumbnailManager().generate(executorService, options.cleanup);
                totalCount += count;
            }
            executorService.shutdown();
            executorService.awaitTermination(60, TimeUnit.SECONDS);

                    popularWordsRequestBuilder.execute().getResponse().getItems().stream().forEach(item -> wordList.add(item.getText()));
                } catch (final SuggesterException e) {
                    logger.warn("Failed to generate popular words.", e);
                }

                return wordList;
            });
        } catch (final ExecutionException e) {
            logger.warn("Failed to load popular words.", e);
        }

                        logger.debug("Interupted task.", e);
                    }
                } catch (final Exception e) {
                    if (generating) {
                        logger.warn("Failed to generate thumbnail.", e);
                    }
                }
            }
            if (!taskList.isEmpty()) {
                storeQueue(taskList);
            }
        }, "ThumbnailGenerator");

            logger.debug("Create thumbnail task: {}", task);
        }
        return task;
    }

    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Generate Thumbnail: {}", thumbnailId);
        }

        if (outputFile.exists()) {
            if (logger.isDebugEnabled()) {

package org.codelibs.fess.thumbnail;

import java.io.File;
import java.util.Map;

import org.codelibs.core.misc.Tuple3;

public interface ThumbnailGenerator {

    String getName();

    boolean generate(String thumbnailId, File outputFile);

    boolean isTarget(Map<String, Object> docMap);

    boolean isAvailable();

    void destroy();

        }

        final TimeoutTask timeoutTask = createTimeoutTask();
        try {
            executeThumbnailGenerator();
        } catch (final Exception e) {
            logger.warn("Failed to generate thumbnails.", e);
            resultBuf.append(e.getMessage()).append("\n");
        } finally {
            if (timeoutTask != null && !timeoutTask.isCanceled()) {
                timeoutTask.cancel();
            }

    @Override
    public void destroy() {
        destoryTimer.cancel();
        destoryTimer = null;
    }

    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Generate Thumbnail: {}", thumbnailId);
        }

        if (outputFile.exists()) {
            if (logger.isDebugEnabled()) {

        assertEquals("", systemHelper.abbreviateLongText(""));
        assertEquals(4000, systemHelper.abbreviateLongText(Stream.generate(() -> "a").limit(4000).collect(Collectors.joining())).length());
        assertEquals(4000, systemHelper.abbreviateLongText(Stream.generate(() -> "a").limit(4001).collect(Collectors.joining())).length());
    }

    public void test_getLanguageItems() {