推薦一個檔案事物管理 Transactional File Manager
Transactional File Manager is a .NET API that supports including file system operations such as file copy, move, delete, append, etc. in a transaction. It's an implementation of System.Transaction.IEnlistmentNotification (works with System.Transactions.TransactionScope).
This library allows you to wrap file system operations in transactions like library allows you to wrap file system operations in transactions like operations :
// Wrap a file copy and a database insert in the same transactionTxFileManager fileMgr = new TxFileManager();using (TransactionScope scope1 = new TransactionScope())
{// Copy a file
fileMgr.Copy(srcFileName, destFileName);// Insert a database record
dbMgr.ExecuteNonQuery(insertSql);scope1.Complete();
}Support the following file operations in transactions:
AppendAllText
#Copy
CreateDirectory
#DeleteDirectory
DeleteFile
#Move
Snapshot
WriteAllText
WriteAllBytes
#This library supports any file system and is not a wrapper over Transactional NTFS (see AlphaFS).
// Completely unrealistic example showing how various file operations, including operations done // by library/3rd party code, can participate in transactions.IFileManager fileManager = new TxFileManager();using (TransactionScope scope1 = new TransactionScope())
{ fileManager.WriteAllText(inFileName, xml); // Snapshot allows any file operation to be part of our transaction.
// All we need to know is the file name.
//The statement below tells the TxFileManager to remember the state of this file.
// So even though XslCompiledTransform has no knowledge of our TxFileManager, the file it creates (outFileName)
// will still be restored to this state in the event of a rollback.
fileManager.Snapshot(outFileName); XslCompiledTransform xsl = new XslCompiledTransform(true); xsl.Load(uri); xsl.Transform(inFileName, outFileName); // write to database 1. This database op will get committed/rolled back along with the file operations we are doing in this transaction.
myDb1.ExecuteNonQuery(sql1); // write to database 2. The transaction is promoted to a distributed transaction here.
myDb2.ExecuteNonQuery(sql2); // let's delete some files
for (string fileName in filesToDelete)
{
fileManager.Delete(fileName);
} // Just for kicks, let's start a new nested transaction. Since we specify RequiresNew here, this nested transaction
// will be committed/rolled back separately from the main transaction.
// Note that we can still use the same fileManager instance. It knows how to sort things out correctly.
using (TransactionScope scope2 = new TransactionScope(TransactionScopeOptions.RequiresNew))
{ fileManager.MoveFile(anotherFile, anotherFileDest);
} // move some files
for (string fileName in filesToMove)
{
fileManager.Move(fileName, GetNewFileName(fileName));
} // Finally, let's create a few temporary files...
// disk space has to be used for something.
// The nice thing about FileManager.GetTempFileName is that
// The temp file will be cleaned up automatically for you when the TransactionScope completes.
// No more worries about temp files that get left behind.
for (int i=0; i<10; i++)
{
fileManager.WriteAllText(fileManager.GetTempFileName(), "testing 1 2");
} scope1.Complete(); // In the event an exception occurs, everything done here will be rolled back including the output xsl file.}這是一個開源專案。原始專案網站是 事務文件管理器。
版權所有（c）2008-2013 Chinh Do
特此授予任何獲得本軟體和相關文件文件（「軟體」）副本的人免費許可，無限制地處理本軟體，包括但不限於使用，複製，修改，合併的權利，發布，分發，再授權和/或出售本軟體的副本，並允許提供本軟體的人員遵守以下條件：
上述版權聲明和本許可聲明應包含在本軟體的所有副本或主要部分。
該軟體是「按原樣」提供，不附帶任何明示或暗示的保證，包括但不限於適銷性，適用於特定用途和不侵權的保證。在任何情況下，作者或版權所有者均不對任何索賠，損害或其他責任負責，無論是否因與本軟體或本軟體的使用或其他交易相關的任何合同，侵權行為或其他方面的行為軟體。
以上是檔案事物管理Transactional File Manager的實例詳解的詳細內容。更多資訊請關注PHP中文網其他相關文章！
