/**
     * Command-line options for the thumbnail generator.
     */
    protected static class Options {
        /**
         * Session ID for filtering thumbnail generation.
         */
        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        /**
         * Name identifier for the thumbnail generation task.
         */

    }

    /**
     * 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);
        }

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.thumbnail.impl;

import java.io.File;

/**
 * Empty implementation of thumbnail generator that does not generate any thumbnails.
 * This class is used as a no-op thumbnail generator when thumbnail generation is disabled
 * or when no specific thumbnail generator is configured.
 */
public class EmptyGenerator extends BaseThumbnailGenerator {

  check_command convert
  check_command pdftoppm
  check_command unoconv
  tmp_pdf_file=/tmp/thumbnail.$$.pdf
  unoconv -e PageRange=1-1 -o ${tmp_pdf_file} -f pdf "${target_file}"
  if [[ ! -f ${tmp_pdf_file} ]] ; then
    echo "unoconv does not work."
    exit 1
  fi
  tmp_png_prefix=/tmp/thumbnail.png.$$
  pdftoppm -png -singlefile ${tmp_pdf_file} ${tmp_png_prefix}
  tmp_png_file="${tmp_png_prefix}.png"

    String getName();

    /**
     * Generates a thumbnail for the given thumbnail ID and saves it to the output file.
     *
     * @param thumbnailId the unique identifier for the thumbnail
     * @param outputFile the file where the generated thumbnail will be saved
     * @return true if the thumbnail was successfully generated, false otherwise
     */
    boolean generate(String thumbnailId, File outputFile);

    /**

        // 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));

                    taskList.clear();
                }
            };
            manager.init();
            assertEquals(new File(varDir, "thumbnails").getAbsolutePath(), manager.baseDir.getAbsolutePath());
            manager.destroy();
        } finally {
            System.clearProperty(Constants.FESS_VAR_PATH);
        }
    }

    public void setThumbnailId_Equal(String thumbnailId) {
        setThumbnailId_Term(thumbnailId, null);
    }

    public void setThumbnailId_Equal(String thumbnailId, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setThumbnailId_Term(thumbnailId, opLambda);
    }

    public void setThumbnailId_Term(String thumbnailId) {
        setThumbnailId_Term(thumbnailId, null);
    }

     * Creates a new instance of the thumbnail purging job with default expiry time (30 days).
     */
    public PurgeThumbnailJob() {
        // Default constructor
    }

    /** Expiration time for thumbnails in milliseconds (default: 30 days) */
    private long expiry = 30 * 24 * 60 * 60 * 1000L;

    /**
     * Executes the thumbnail purging job.