if (!list.isEmpty()) {
                final List<String> newUrlList = new ArrayList<>(list.size());
                for (final FavoriteLog favoriteLog : list) {
                    newUrlList.add(favoriteLog.getUrl());
                }
                return newUrlList;
            }
            return Collections.<String> emptyList();
        }).orElse(Collections.<String> emptyList());

    }

                throw new FessSystemException("Could not find tikaExtractor.");
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
        }
        return extractor;
    }

                                && (attributes.get("Fess-WebAppJar") != null || attributes.getValue("Fess-WebAppJar") != null)) {
                            createWebResourceSet(ResourceSetType.CLASSES_JAR, "/WEB-INF/classes", possibleJar.getURL(), "/");
                        }
                    }
                } catch (final Exception e) {
                    logger.log(Level.WARNING, e, () -> {

        }
        final Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
        if (logger.isDebugEnabled()) {
            logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
        }
        return extractor;
    }

        asDocMeta().version(version);
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);
        }

        asDocMeta().version(version);
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    public LocalDateTime getRequestedAt() {
        return getCreatedAt();
    }

    @Override
    public Map<String, Object> toSource() {

                    appendJson("user-info-id", entity.getUserInfoId(), buf).append(',');
                    appendJson("doc-id", entity.getDocId(), buf).append(',');
                    appendJson("url", entity.getUrl(), buf);
                    buf.append('}');
                    buf.append('\n');
                    try {
                        writer.write(buf.toString());
                    } catch (final IOException e) {

            break;
        }
    }

    protected void install(final Artifact artifact) {
        final String fileName = artifact.getFileName();
        final String url = artifact.getUrl();
        if (StringUtil.isBlank(url)) {
            throw new PluginException("url is blank: " + artifact.getName());
        }
        if (url.startsWith("http:") || url.startsWith("https:")) {

        this.updatedTime = value;
    }

    public String getUrls() {
        checkSpecifiedProperty("urls");
        return convertEmptyToNull(urls);
    }

    public void setUrls(String value) {
        registerModifiedProperty("urls");
        this.urls = value;
    }

    public String getUserAgent() {
        checkSpecifiedProperty("userAgent");

            if (pattern != null) {
                if (!pattern.matcher(failureUrl.getErrorName()).matches()) {
                    urlList.add(failureUrl.getUrl());
                }
            } else {
                urlList.add(failureUrl.getUrl());
            }
        }
        return urlList;
    }

    public OptionalEntity<CrawlingConfig> getDefaultConfig(final ConfigType configType) {