Beispiel #1
0
        public string GetLogPath(string customDirectory, string preFile)
        {
            string newFilePath = string.Empty;
            //String logDir = string.IsNullOrEmpty(customDirectory) ? Path.Combine(Environment.CurrentDirectory, "logs") : customDirectory;
            String logDir = string.IsNullOrEmpty(customDirectory) ? PathHelper.CombineWithBaseDirectory("logs") : customDirectory;

            if (!Directory.Exists(logDir))
            {
                Directory.CreateDirectory(logDir);
            }
            string        extension        = ".log";
            string        fileNameNotExt   = String.Concat(preFile, DateTime.Now.ToString("yyyyMMdd"));
            String        fileName         = String.Concat(fileNameNotExt, extension);
            string        fileNamePattern  = string.Concat(fileNameNotExt, "(*)", extension);
            List <string> filePaths        = new List <string>(Directory.GetFiles(logDir, fileNamePattern, SearchOption.TopDirectoryOnly));
            List <string> correctFilePaths = new List <string>();

            if (filePaths.Count > 0)
            {
                foreach (string fPath in filePaths)
                {
                    string no     = new Regex(@"(?is)(?<=\()(.*)(?=\))").Match(Path.GetFileName(fPath)).Value;
                    int    tempno = 0;
                    if (int.TryParse(no, out tempno))
                    {
                        correctFilePaths.Add(fPath);
                    }
                }
            }
            if (correctFilePaths.Count > 0)
            {
                correctFilePaths.Sort((x, y) => x.CompareTo(y));
                int fileMaxLen = 0;
                for (int i = 0; i < correctFilePaths.Count; i++)
                {
                    int itemLength = correctFilePaths[i].Length;
                    fileMaxLen = itemLength > fileMaxLen ? itemLength : fileMaxLen;
                }
                string lastFilePath = correctFilePaths.FindLast(d => d.Length == fileMaxLen);
                long   actualSize   = new FileInfo(lastFilePath).Length;
                long   maxSize      = 10 * 1024 * 1024;//(1 * 1024 * 1024 = 1M);
                if (actualSize < maxSize)
                {
                    newFilePath = lastFilePath;
                }
                else
                {
                    string no          = new Regex(@"(?is)(?<=\()(.*)(?=\))").Match(Path.GetFileName(lastFilePath)).Value;
                    int    tempno      = 0;
                    bool   parse       = int.TryParse(no, out tempno);
                    string formatno    = String.Format("({0})", parse ? (tempno + 1) : tempno);
                    string newFileName = String.Concat(fileNameNotExt, formatno, extension);
                    newFilePath = Path.Combine(logDir, newFileName);
                }
            }
            else
            {
                string newFileName = String.Concat(fileNameNotExt, String.Format("({0})", 0), extension);
                newFilePath = Path.Combine(logDir, newFileName);
            }
            return(newFilePath);
        }