final Object urlObj = dataMap.get(fessConfig.getIndexFieldUrl());
            if (urlObj == null) {
                throw new DataStoreException("url is null. dataMap=" + dataMap);
            }

            // Add fields
            dataMap.put(fessConfig.getIndexFieldId(), crawlingInfoHelper.generateId(dataMap));

            final String url = dataMap.get(fessConfig.getIndexFieldUrl()).toString();

            }

            @Override
            public String getIndexFieldDigest() {
                return "digest";
            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexDocumentUpdateIndex() {
                return "fess.update";
            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldLang() {
                return "lang";
            }

            @Override

            }

            @Override
            public String getIndexFieldContent() {
                return "content";
            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldSite() {
                return "site";
            }

            @Override

            public String getIndexFieldContent() {
                return baseConfig.getIndexFieldContent();
            }

            @Override
            public String getIndexFieldUrl() {
                return baseConfig.getIndexFieldUrl();
            }

            @Override
            public String getIndexFieldSite() {
                return baseConfig.getIndexFieldSite();
            }

            @Override

        // Set up FessConfig mock
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }
        });
    }

            private static final long serialVersionUID = 1L;

            public boolean isAppendQueryParameter() {
                return false;
            }

            public String getIndexFieldUrl() {
                return "url";
            }

            public String getIndexFieldDocId() {
                return "doc_id";
            }
        });

        // http

            return true;
        }

        @Override
        public String getIndexFieldDocId() {
            return "doc_id";
        }

        @Override
        public String getIndexFieldUrl() {
            return "url";
        }

        @Override
        public String getIndexFieldBoost() {
            return "boost";
        }

        @Override

            searchHelper
                    .getDocumentByDocId(docId, new String[] { fessConfig.getIndexFieldUrl(), fessConfig.getIndexFieldLang() },
                            OptionalThing.empty())
                    .ifPresent(doc -> {
                        final String favoriteUrl = DocumentUtil.getValue(doc, fessConfig.getIndexFieldUrl(), String.class);
                        final String userCode = userInfoHelper.getUserCode();

    public void test_indexFieldExpires() {
        assertEquals("expires", fessConfig.getIndexFieldExpires());
    }

    @Test
    public void test_indexFieldUrl() {
        assertEquals("url", fessConfig.getIndexFieldUrl());
    }

    @Test
    public void test_indexFieldDocId() {
        assertEquals("doc_id", fessConfig.getIndexFieldDocId());
    }

    @Test
    public void test_indexFieldId() {