* Each enum constant represents a specific event or state in the crawler's execution.
 */
public enum LogType {
    /** Indicates the start of a crawling process. */
    START_CRAWLING,
    /** Indicates the cleanup phase of crawling. */
    CLEANUP_CRAWLING,
    /** Indicates an unsupported URL was encountered when crawling started. */
    UNSUPPORTED_URL_AT_CRAWLING_STARTED,

     */
    @PostConstruct
    public void init() {
        if (officeManager == null) {
            throw new CrawlerSystemException("officeManager is null.");
        }
        try {
            officeManager.start();
        } catch (final OfficeException e) {
            throw new CrawlerSystemException("Failed to start officeManager.", e);
        }

                        .forPort(port)//
                        .withStartupTimeout(Duration.ofSeconds(30)));
        logger.info("Starting {}", IMAGE_NAME);
        minioServer.start();
        logger.info("Started {}", IMAGE_NAME);

        String bucketName = "fess";
        Integer mappedPort = minioServer.getFirstMappedPort();
        Testcontainers.exposeHostPorts(mappedPort);

    /**
     * Executes the crawling process.
     * Starts a new thread for the crawler and optionally waits for its termination.
     * @return The session ID of the crawling process.
     */
    public String execute() {
        parentThread = new Thread(this, "Crawler-" + crawlerContext.sessionId);
        parentThread.setDaemon(daemon);
        parentThread.start();
        if (!background) {
            awaitTermination();

                        "-g", "log level = 3");
        logger.info("Starting Samba container with image {}", IMAGE_NAME);
        sambaServer.start();
        logger.info("Samba container started");

        String host = sambaServer.getContainerIpAddress();
        Integer port = sambaServer.getMappedPort(445);
        baseUrl = "smb://" + host + ":" + port + "/users/";

 * different types of processing states and a method to introduce a delay
 * based on the type of processing.
 * <p>
 * Constants:
 * </p>
 * <ul>
 *   <li>{@code PRE_PROCESSING} - Represents the pre-processing state.</li>
 *   <li>{@code POST_PROCESSING} - Represents the post-processing state.</li>
 *   <li>{@code NO_URL_IN_QUEUE} - Indicates that there are no URLs in the queue.</li>

            if (responseData != null) {
                processedUrls.add(responseData.getUrl());
                state++;
            }

            ResultData resultData = new ResultData();
            resultData.setTransformerName(name);
            resultData.setData(("State: " + state).getBytes());
            return resultData;
        }

        @Override

                            exceptions.add(e);
                        }
                    }
                }
            });
        }

        // Start all threads
        for (Thread thread : threads) {
            thread.start();
        }

        // Wait for all threads
        for (Thread thread : threads) {
            thread.join();
        }

        // Verify results

                    Thread.currentThread().interrupt();
                } finally {
                    endLatch.countDown();
                }
            }
        });

        thread1.start();
        thread2.start();
        startLatch.countDown();
        endLatch.await(5, TimeUnit.SECONDS);

        assertEquals(2, successCount.get());
    }

    /**

            try {
                Thread.sleep(1000);
            } catch (InterruptedException ignore) {}
            deferred.resolve(new SuggestResponse("", 0, Collections.emptyList(), 0, null));
        });
        th.start();

        final CountDownLatch latch = new CountDownLatch(1);
        deferred.promise().then(response -> latch.countDown());
        assertTrue(latch.await(10, TimeUnit.SECONDS));
    }

    @Test