this.logger = logger;
    }

    @Override
    public void testArtifact(Artifact node) {}

    @Override
    public void startProcessChildren(Artifact artifact) {
        indent += "  ";
    }

    @Override
    public void endProcessChildren(Artifact artifact) {
        indent = indent.substring(2);
    }

    @Override

import org.mockito.MockitoAnnotations;
import org.slf4j.Logger;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

class DefaultToolchainTest {
    private final Logger logger = mock(Logger.class);

    @BeforeEach

 *
 * @author shinsuke
 *
 */
public class OpenSearchUrlQueueService extends AbstractCrawlerService implements UrlQueueService<OpenSearchUrlQueue> {
    /**
     * Logger instance.
     */
    private static final Logger logger = LogManager.getLogger(OpenSearchUrlQueueService.class);

    /**
     * Data service for checking access results.
     */
    @Resource
    protected OpenSearchDataService dataService;

 *   <li>Old document deletion after successful crawling</li>
 *   <li>Crawling execution monitoring and timing</li>
 * </ul>
 */
public class DataIndexHelper {

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(DataIndexHelper.class);

    /** Parameter key for controlling deletion of old documents */
    private static final String DELETE_OLD_DOCS = "delete_old_docs";

                if (response.getHttpStatusCode() == 200) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Sent {} to {}.", body, url);
                    }
                } else {
                    logger.warn("Failed to send {} to {}. HTTP Status is {}. {}", body, url, response.getHttpStatusCode(),

		</RollingFile>
	</Appenders>

	<Loggers>
		<Logger name="org.codelibs" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>
		<Logger name="org.dbflute" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>
		<Logger name="org.lastaflute" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>

            final String jwtSigniture = new String(decodeBase64(jwt[2]), Constants.UTF_8_CHARSET);

            if (logger.isDebugEnabled()) {
                logger.debug("jwtHeader: {}", jwtHeader);
                logger.debug("jwtClaim: {}", jwtClaim);
                logger.debug("jwtSigniture: {}", jwtSigniture);
            }

            // TODO validate signiture

     *
     * @return the command (human) name
     */
    @Nonnull
    String commandName();

    /**
     * Returns the logger to be used during the parsing process.
     *
     * @return the logger instance
     */
    @Nonnull
    Logger logger();

    /**
     * Returns the factory for creating message builders.
     *
     * @return the message builder factory
     */
    @Nonnull

            if (logger.isDebugEnabled()) {
                logger.debug("Updating scheduled jobs. time:{}", schedulerTime);
            }
            final long now = systemHelper.getCurrentTimeAsLong();
            scheduledJobService.getScheduledJobListAfter(schedulerTime).forEach(scheduledJob -> {
                if (logger.isDebugEnabled()) {

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

        if (outputFile.exists()) {
            if (logger.isDebugEnabled()) {
                logger.debug("The thumbnail file exists: {}", outputFile.getAbsolutePath());
            }
            return true;