}

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        final RequestData other = (RequestData) obj;
        if (!Objects.equals(metaData, other.metaData) || method != other.method || !Objects.equals(url, other.url)) {

                    logger.debug("Ignored {} on {}. Use {}.", extractor.getClass().getName(), key, oldExtractor.getClass().getName());
                }
                return;
            }
        }
        extractorMap.put(key, extractor);
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {} : {}", key, extractor.getClass().getName());
        }
    }

                    requestDataSet.add(RequestDataBuilder.newRequestData().get().url(sitemap.getLoc()).build());
                }
            }
            throw new ChildUrlsException(requestDataSet, this.getClass().getName() + "#process");
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

        } catch (final OfficeException e) {
            throw new CrawlerSystemException("Failed to start officeManager.", e);
        }
        if (logger.isDebugEnabled()) {
            logger.debug(officeManager.getClass().getSimpleName() + " is started.");
        }
    }

    @PreDestroy
    public void destroy() {
        try {
            officeManager.stop();
        } catch (final OfficeException e) {

        final PropertyDesc sessionIdProp = beanDesc.getPropertyDesc(URL);
        final Object sessionId = sessionIdProp.getValue(target);
        return sessionId == null ? null : sessionId.toString();
    }

    private String getSessionId(final Object target) {
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(target.getClass());

                        }
                    }
                }
                throw new ChildUrlsException(requestDataSet, this.getClass().getName() + "#getResponseData");
            } else {
                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);

                } else if (logger.isDebugEnabled()) {
                    logger.debug("use {} from {}, not {}", extractor.getClass().getName(), detectedMimeType, mimeType);
                }
            } else if (logger.isDebugEnabled()) {
                logger.debug("use {} from {}", extractor.getClass().getName(), mimeType);
            }

            if (maxContentLength < 0) {

        }

        protected T get() {
            return instance;
        }

        protected void destroy() {
            final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(instance.getClass());
            for (final String methodName : beanDesc.getMethodNames()) {
                final MethodDesc methodDesc = beanDesc.getMethodDescNoException(methodName);
                if (methodDesc != null) {

                    requestDataSet.add(RequestDataBuilder.newRequestData().get().url("storage://" + bucketName + "/" + objectName).build());
                }
                throw new ChildUrlsException(requestDataSet, this.getClass().getName() + "#getResponseData");
            }
            // check file size
            responseData.setContentLength(statObject.size());
            checkMaxContentLength(responseData);

        clientMap.values().stream().distinct().forEach(client -> {
            try {
                client.close();
            } catch (final Exception e) {
                logger.warn("Faild to close {}.", client.getClass().getCanonicalName(), e);
            }
        });
    }