private LogicFileInfoData UpdateFile(OpenFileItemData itemParam, LogicFileInfoData logicFileInfo, long fileLength, Guid userID, DbTransaction trans)
{
LogicFileInfoData result = logicFileInfo;
UpdateMode updateMode = itemParam.UpdateMode;
FileMode mode = itemParam.FileMode;
long length = 0;
if (updateMode == UpdateMode.None)
{
updateMode = UpdateMode.Override;
}
if (updateMode == UpdateMode.NewVersion)
{
PhysicalFileInfoData oldFileData = logicFileInfo.PhysicalFileInfos[logicFileInfo.PhysicalFileInfos.Count - 1];
Guid physcicalFileID = CombineGuid.NewComboGuid();
switch (mode)
{
case FileMode.Truncate:
case FileMode.Create:
FileStorageManager.SetFileLength(this.DataProvider, physcicalFileID, result.LogicFileExt, 0);
break;
default:
length = FileStorageManager.CopyFile(this.DataProvider, oldFileData.ID, physcicalFileID, logicFileInfo.LogicFileExt);
break;
}
PhysicalFileInfoData fileData = new PhysicalFileInfoData();
fileData.ID = physcicalFileID;
fileData.LogicFileID = result.ID;
fileData.FileLength = length;
fileData.Version = GetFileVersion(logicFileInfo, trans);
fileData.StoreModeID = FileStorageManager.GetCurrentStoreModeID(this.DataProvider);
this.DataProvider.CreatePhysicalFileInfo(fileData, trans);
result.PhysicalFileInfos.Add(fileData);
result.LatestPhysicalFileID = physcicalFileID;
this.DataProvider.UpdateFileInfo(logicFileInfo, trans);
}
else if (updateMode == UpdateMode.Override)
{
switch (mode)
{
case FileMode.Truncate:
case FileMode.Create:
FileStorageManager.SetFileLength(this.DataProvider, logicFileInfo.LatestPhysicalFileID, result.LogicFileExt, 0);
break;
}
}
return(result);
}
protected WriteFileResultItemData WriteFileItem(WriteFileItemData itemParam, Guid userID, DbTransaction trans)
{
WriteFileResultItemData item = new WriteFileResultItemData();
RecordLockedManager.ServiceProxy.SetDataProvider(RecordLockedDataProvider);
RecordLockedManager.UpdateLockInfo(itemParam.LockID, DateTime.UtcNow.Add(RecordLocked.DefaultExpireTimeSpan));
string extendsionName = string.Empty;
if (!string.IsNullOrEmpty(itemParam.ClientFileName))
{
extendsionName = Path.GetExtension(itemParam.ClientFileName);
}
long length = FileStorageManager.WriteFile(this.DataProvider, itemParam.PhysicalFileID, extendsionName, itemParam.Position, itemParam.WriteData);
this.DataProvider.UpdatePhysicalFileLength(itemParam.PhysicalFileID, length, DateTime.UtcNow, userID, trans);
return(item);
}
public static IFileStorageProvider CreateFileStorageProvider(IFileStorageProviderDataProvider dataProvider, ConfigSettingData configData, Guid physicalFileID, string extendsionName)
{
IFileStorageProvider provider = null;
if (configData == null)
{
configData = FileStorageManager.GetConfigSetting(dataProvider, physicalFileID);
}
if (configData != null && configData.FileStorage != null)
{
provider = ObjectFactory.CreateObject(configData.FileStorage.Provider) as IFileStorageProvider;
if (provider != null)
{
provider.Initialize(configData, physicalFileID, extendsionName);
}
}
return(provider);
}
protected ReadFileResultItemData ReadFileItem(ReadFileItemData itemParam, Guid userID, DbTransaction trans)
{
ReadFileResultItemData item = new ReadFileResultItemData();
IRecordLockedDataProvider dataProvider = RecordLockedDataProvider;
if (dataProvider != null)
{
RecordLockedManager.ServiceProxy.SetDataProvider(dataProvider);
}
if (itemParam.LockID != Guid.Empty)
{
RecordLockedManager.UpdateLockInfo(itemParam.LockID, DateTime.UtcNow.Add(RecordLocked.DefaultExpireTimeSpan));
}
string extendsionName = string.Empty;
if (!string.IsNullOrEmpty(itemParam.ClientFileName))
{
extendsionName = Path.GetExtension(itemParam.ClientFileName);
}
item.ReadData = FileStorageManager.ReadFile(this.DataProvider, itemParam.PhysicalFileID, extendsionName, itemParam.Position, itemParam.ReadCount);
return(item);
}
private LogicFileInfoData CreateNewFile(OpenFileItemData itemParam, Guid userID, DbTransaction trans)
{
LogicFileInfoData result = new LogicFileInfoData();
Guid physcicalFileID = CombineGuid.NewComboGuid();
if (itemParam.FileID != Guid.Empty)
{
result.ID = itemParam.FileID;
}
else
{
result.ID = CombineGuid.NewComboGuid();
}
if (!string.IsNullOrEmpty(itemParam.ClientFileName))
{
result.LogicFileName = Path.GetFileName(itemParam.ClientFileName);
result.LogicFileExt = Path.GetExtension(itemParam.ClientFileName);
}
result.LogicFileStatus = LogicFileStatus.Normal;
result.IsReadOnly = false;
result.LatestPhysicalFileID = physcicalFileID;
result.CurrentUserID = userID;
this.DataProvider.CreateFileInfo(result, trans);
PhysicalFileInfoData fileData = new PhysicalFileInfoData();
fileData.ID = physcicalFileID;
fileData.LogicFileID = result.ID;
fileData.FileLength = 0;
fileData.Version = 1;
fileData.StoreModeID = FileStorageManager.GetCurrentStoreModeID(this.DataProvider);
this.DataProvider.CreatePhysicalFileInfo(fileData, trans);
result.PhysicalFileInfos.Add(fileData);
FileStorageManager.CreateNewFile(this.DataProvider, physcicalFileID, result.LogicFileExt);
return(result);
}