this.client = client;
        this.settings = settings;
        this.indexName = indexName;
        supportedFields = settings.array().get(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS);
        totalDocNum = getTotal();
    }

    @Override
    public synchronized Map<String, Object> read() {
        while (!isFinished.get() && queue.isEmpty()) {

        return this;
    }

    /**
     * Sets the supported fields.
     * @param supportedFields The supported fields.
     * @return This SuggestIndexer instance.
     */
    public SuggestIndexer setSupportedFields(final String[] supportedFields) {
        this.supportedFields = supportedFields;
        return this;
    }

    /**
     * Sets the tag field names.

        return searchFields;
    }

    /**
     * Sets the fields that can be searched against.
     *
     * @param supportedFields array of field names that can be searched
     */
    public void setSearchFields(final String[] supportedFields) {
        searchFields = supportedFields;
    }

    /**
     * Gets the fields that can be used for faceted search.
     *

     */
    public static class DefaultKeys {
        /** Index key. */
        public static final String INDEX = "index";
        /** Supported fields key. */
        public static final String SUPPORTED_FIELDS = "supportedFields";
        /** Tag field name key. */
        public static final String TAG_FIELD_NAME = "tagFieldName";
        /** Role field name key. */
        public static final String ROLE_FIELD_NAME = "roleFieldName";

    }

    @Test
    public void test_indexFromQueryString() throws Exception {
        SuggestSettings settings = suggester.settings();
        String field = settings.array().get(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS)[0];

        SuggestIndexResponse indexResponse = suggester.indexer().indexFromQueryLog(new QueryLog(field + ":検索", null));
        assertEquals(1, indexResponse.getNumberOfInputDocs());

        assertEquals("settings-test.suggest", settings.getAsString(SuggestSettings.DefaultKeys.INDEX, ""));
        assertEquals("content", settings.array().get(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS)[0]);
        assertEquals("label,virtual_host", settings.getAsString(SuggestSettings.DefaultKeys.TAG_FIELD_NAME, ""));
        assertEquals("role", settings.getAsString(SuggestSettings.DefaultKeys.ROLE_FIELD_NAME, ""));
    }

        try {
            suggester.settings().array().delete(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS);
            split(fessConfig.getSuggestFieldIndexContents(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(field -> {
                try {
                    suggester.settings().array().add(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS, field);
                } catch (final SuggestSettingsException e) {