/// <summary>
        /// インデックス作成
        /// </summary>
        /// <param name="rootPath"></param>
        /// <param name="targetDir"></param>
        /// <param name="progress"></param>
        /// <param name="txtExtractMode"></param>
        public async static void CreateIndexBySingleThread(
            string rootPath,
            string targetDir,
            IProgress <ProgressReport> progress,
            TextExtractModes txtExtractMode,
            string orgIndexStorePath = "")
        {
            DoStop = false;
            try {
                _txtExtractMode = txtExtractMode;

                var worker = await CreateIndexAsync(rootPath, targetDir, progress, orgIndexStorePath);

                AppObject.Logger.Info("インデックス構築完了");
            } catch (Exception e) {
                AppObject.Logger.Error(e.StackTrace);
            } finally {
            }
        }
        public async static void CreateWebIndexBySingleThread(
            string rootPath,
            string targetUrl,
            Dictionary <string, WebContents> targetDic,
            IProgress <ProgressReport> progress,
            TextExtractModes txtExtractMode)
        {
            DoStop = false;
            try {
                _txtExtractMode = txtExtractMode;

                var worker = await CreateWebIndexAsync(rootPath, targetUrl, targetDic, progress);

                AppObject.Logger.Info("インデックス構築完了");
            } catch (Exception e) {
                AppObject.Logger.Error(e.StackTrace);
            } finally {
            }
        }
        public async static void CreateIndexByMultiRAM(
            Analyzer analyzer,
            string rootPath,
            string targetDir,
            IProgress <ProgressReport> progress,
            TextExtractModes txtExtractMode)
        {
            try {
                _txtExtractMode = txtExtractMode;

                //先に対象ファイルを分割
                _targetFileList = SplitTargetFiles(targetDir);

                var worker = await CreateRAMIndexAsync(analyzer, rootPath, targetDir, progress);

                //インデックスファイルを一時構築用から検索用に移動
                CopyIndexDir(rootPath + BuildDirName, rootPath + IndexDirName);

                AppObject.Logger.Info("インデックス構築処理完了");
            } catch (Exception e) {
                AppObject.Logger.Error(e.Message);
            } finally {
            }
        }