}
                    break;
                default:
                    logger.error("Unknown thumbnail result: {} -> {}", thumbnailId, responseData.getUrl());
                    break;
                }
            } catch (final Throwable t) {
                logger.warn("Failed to create thumbnail: {} -> {} ({}:{})", thumbnailId, responseData.getUrl(),

     */
    @Override
    public ResponseData execute(final RequestData request) {
        return switch (request.getMethod()) {
        case GET -> doGet(request.getUrl());
        case HEAD -> doHead(request.getUrl());
        case POST -> doPost(request.getUrl());
        default -> throw new CrawlerSystemException(request.getMethod() + " method is not supported.");
        };
    }

    /**

            @Override
            public InputStream getResponseBody() {
                return new ByteArrayInputStream("Test response body".getBytes());
            }

            @Override
            public String getUrl() {
                return "http://example.com/test";
            }
        };

        File tempFile = ResponseDataUtil.createResponseBodyFile(responseData);

        assertNotNull(tempFile);

                    if (logger.isDebugEnabled()) {
                        logger.debug("Skipping crawl request for url='{}' at depth={} (maxDepth={}, alreadyProcessed={})",
                                crawlRequest.getUrl(), crawlRequest.getDepth(), maxDepth, processedUrls.contains(crawlRequest.getUrl()));
                    }
                    continue;

                    final SmbFile[] files = file.listFiles();
                    if (files != null) {
                        for (final SmbFile f : files) {
                            final String childUri = f.getURL().toExternalForm();
                            requestDataSet.add(RequestDataBuilder.newRequestData().get().url(childUri).build());
                        }
                    }
                }

                    }
                }
                if (logger.isDebugEnabled()) {
                    logger.debug("smbUrl:{} roleType:{}", responseData.getUrl(), roleTypeList);
                }
            } else if (responseData.getUrl().startsWith("smb1:")) {
                final org.codelibs.jcifs.smb1.SID[] allowedSids = (org.codelibs.jcifs.smb1.SID[]) metaDataMap

            assertEquals("application/octet-stream", responseData.getMimeType());
            assertNull(responseData.getResponseBody());
            assertNull(responseData.getMetaDataMap().get("label"));
        }
        try (final ResponseData responseData = gcsClient.doHead("gcs://fess/dir1/dir2/file3.txt")) {
            assertEquals("gcs://fess/dir1/dir2/file3.txt", responseData.getUrl());

        // load the child project, which inherits from p0...
        MavenProject project0 = getProject(pom0);
        MavenProject project1 = getProject(pom1);

        assertEquals(project1.getScm().getUrl(), project0.getScm().getUrl() + "/modules/p1");
        assertEquals(project1.getScm().getConnection(), project0.getScm().getConnection() + "/modules/p1");
        assertEquals(

                    repo -> System.out.println("  - " + repo.getId() + " (" + repo.getUrl() + ")"));

            System.out.println("Child1 project repositories:");
            child1Project
                    .getRemoteArtifactRepositories()
                    .forEach(repo -> System.out.println("  - " + repo.getId() + " (" + repo.getUrl() + ")"));

            System.out.println("Child2 project repositories:");

                }
                return;
            }
            logger.warn("Failed to store failure url: url={}", urlQueue.getUrl(), e);
        }

        if (cae.isDebugEnabled()) {
            logger.debug("[{}] Crawling Access Exception: url={}", failureUrlId, urlQueue.getUrl(), cae);
        } else if (cae.isInfoEnabled()) {
            logger.info("[{}] {}", failureUrlId, cae.getMessage());