}

    /**
     * Generates a thumbnail for the given ID and saves it to the output file.
     * @param thumbnailId The ID of the thumbnail to generate.
     * @param outputFile The file where the thumbnail will be saved.
     * @return True if thumbnail generation was successful, false otherwise.
     */
    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {

     * @param outputFile the file where the generated thumbnail will be saved
     * @return true if the thumbnail was successfully generated, false otherwise
     */
    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Generate Thumbnail: {}", thumbnailId);
        }

        // Test successful thumbnail generation
        String thumbnailId = "test-thumbnail-001";
        assertTrue(thumbnailGenerator.generate(thumbnailId, tempOutputFile));
        assertTrue(tempOutputFile.exists());
    }

    public void test_generate_withNullThumbnailId() {
        // Test generation with null thumbnail ID
        assertFalse(thumbnailGenerator.generate(null, tempOutputFile));

/**
 * Manager class for handling thumbnail generation and management.
 * Provides functionality to generate, cache, and serve thumbnail images for documents.
 */
public class ThumbnailManager {
    private static final String NOIMAGE_FILE_SUFFIX = ".txt";

    /**
     * Default directory name for thumbnails.
     */
    protected static final String THUMBNAILS_DIR_NAME = "thumbnails";

    /**

        }
        return value;
    }

    /**
     * Updates the thumbnail field in the search index.
     * @param thumbnailId The thumbnail ID.
     * @param value The thumbnail value to update.
     */
    protected void updateThumbnailField(final String thumbnailId, final String value) {
        // TODO bulk
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

import org.codelibs.fess.util.SystemUtil;

import jakarta.servlet.ServletContext;

/**
 * Job class for generating thumbnails for documents in the search engine.
 * This job executes the ThumbnailGenerator process as a separate JVM process
 * to create thumbnail images for supported document types.
 */
public class GenerateThumbnailJob extends ExecJob {
    /** Logger for this class. */

 * 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.thumbnail;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

     */
    @Size(max = 10)
    public String loginLink;

    /**
     * Enable or disable thumbnail generation for documents.
     * When enabled, thumbnails are generated for supported file types.
     */
    @Size(max = 10)
    public String thumbnail;

    /**
     * Types of crawling failures to ignore during crawling operations.

 * managing document lifecycle operations (create, update, delete), and handling
 * thumbnail processing during indexing.
 *
 * <p>The IndexingHelper manages bulk operations, handles retries on failures,
 * and provides various query-based operations for document management.
 * It also integrates with the thumbnail generation system and handles
 * the cleanup of old documents during updates.</p>
 */

        assertEquals(ArtifactType.WEBAPP, webappArtifact.getType());

        Artifact thumbnailArtifact = new Artifact("fess-thumbnail-test", "1.0.0");
        assertEquals(ArtifactType.THUMBNAIL, thumbnailArtifact.getType());

        Artifact crawlerArtifact = new Artifact("fess-crawler-test", "1.0.0");
        assertEquals(ArtifactType.CRAWLER, crawlerArtifact.getType());