private static string GetBackupLogFileName(XWXFileSystemWatcher watcher)
{
//为每个监视独立建立一个日志。日志名称格式为:log__监视路径__.txt,例如:log__c_folder1_folder2__.txt 代表监视"c:\folder1\folder2"的日志
string logFileId = watcher.Path.Replace(":\\", "_").Replace("\\", "_");
return(GetOrCreateLogFilePath() + "\\log__" + logFileId + "__.txt");
}
public static void Backup(XWXFileSystemWatcher watcher, RenamedEventArgs e, IRecord recorder)
{
try
{
FileAttributes attrs = File.GetAttributes(e.FullPath);
//判断改路径是一个文件还是一个目录
bool isFolder = ((attrs & FileAttributes.Directory) == FileAttributes.Directory);
//如果是一个目录，则在备份目录中创建一个同名目录
if (isFolder)
{
string backupDir = watcher.BackupFolder + "\\" + e.Name;
//如果备份文件夹中不存在该目录，则创建之
if (!Directory.Exists(backupDir))
{
Directory.CreateDirectory(backupDir);
}
}
else//如果是一个文件，则备份文件
{
string destFileName = watcher.BackupFolder + "\\" + e.Name;
//备份文件的后缀(格式为:".yyyy_MM_dd_HH_mm_ss.changedType",例如:2013_02_28_14_12_32.created)
string extendName = DateTime.Now.ToString("@yyyy_MM_dd_HH_mm_ss") + "." + System.Enum.GetName(e.ChangeType.GetType(), e.ChangeType);
string backupFileName = destFileName + extendName;
//检查文件是否已经存在，存在则不进行操作
if (File.Exists(backupFileName))
{
return;
}
try
{
//将文件复制到备份目录进行备份，并记录入日志
FileHelper.SaveCopy(e.FullPath, backupFileName, false);
if (recorder != null)
{
recorder.Record(watcher, e);
}
Logger.LogBackup(watcher, DateTime.Now, Enum.GetName(e.ChangeType.GetType(), e.ChangeType), "成功", e.FullPath, backupFileName, string.Empty);
}
catch (Exception ex)
{
//如果发生IO异常，则记录日志，以便追踪
Logger.LogBackup(watcher, DateTime.Now, Enum.GetName(typeof(WatcherChangeTypes), e.ChangeType), "失败", e.FullPath, backupFileName, ex.Message);
}
}
}
catch (Exception ex)
{
Logger.LogBackup(watcher, DateTime.Now, Enum.GetName(typeof(WatcherChangeTypes), e.ChangeType), "失败", e.FullPath, "", ex.Message);
}
}
/// <summary>
/// 对备份操作进行日志记录
/// </summary>
/// <param name="date">备份的时间</param>
/// <param name="action">引起备份的动作</param>
/// <param name="backupResult">备份执行结果</param>
/// <param name="sourceFile">源文件</param>
/// <param name="destFile">目标文件</param>
/// <param name="remark">备注</param>
public static void LogBackup(XWXFileSystemWatcher watcher, DateTime date, string action, string backupResult, string sourceFile, string destFile, string remark)
{
string logFolder = GetOrCreateLogFilePath();
string logFile = GetBackupLogFileName(watcher);
string logString = string.Format("【备份时间:{0} 动作:{1} 执行结果:{2} 源:\"{3}\" 目标:\"{4}\" 备注:{5} 】\r\n\r\n",
date.ToString("yyyy-MM-dd HH:mm:ss"),
action,
backupResult,
sourceFile,
destFile,
remark
);
FileInfo file = new FileInfo(logFile);
FileStream fs = file.Open(FileMode.Append, FileAccess.Write);
byte[] bytes = Encoding.UTF8.GetBytes(logString);
fs.Write(bytes, 0, bytes.Length);
fs.Flush();
fs.Close();
fs.Dispose();
}
