/// <summary>
/// Determines whether [is on new day automatic save required] [the specified automatic save].
/// </summary>
/// <param name="autoSave">The automatic save.</param>
/// <param name="fHeader">The f header.</param>
/// <param name="dt">The dt.</param>
/// <returns></returns>
static public Boolean IsOnNewDayAutoSaveRequired(RIAutoSaveInfo autoSave, RIFileHeader fHeader, DateTime dt)
{
// see if this message's time stamp exceeds next day,
// if so, force an auto save condition is SaveOnNewDay was set
return(autoSave.SaveOnNewDay && fHeader.FInitDateTime != DateTime.MinValue &&
(dt.ToLocalTime().Date.Subtract(fHeader.FInitDateTime.ToLocalTime().Date).TotalDays >= 1));
}
/// <summary>
/// Shoulds the automatic save.
/// </summary>
/// <param name="fileHeader">The file header.</param>
/// <param name="autoSave">The automatic save.</param>
/// <param name="stream">The stream.</param>
/// <param name="onFileSize">Size of the on file.</param>
/// <param name="messageDateTime">The message date time.</param>
/// <param name="messageLength">Length of the message.</param>
/// <returns></returns>
static public Boolean ShouldAutoSave(RIFileHeader fileHeader, RIAutoSaveInfo autoSave, Stream stream, Int64 onFileSize, DateTime messageDateTime, Int32 messageLength)
{
Boolean save = false;
if (FileHelper.IsOnNewDayAutoSaveRequired(autoSave, fileHeader, messageDateTime) ||
fileHeader.FMessageCount >= autoSave.SaveOnMsgLimit ||
(fileHeader.FMessageCount > 0 && onFileSize > 0 && (messageLength + stream.Length) > onFileSize))
{
save = true;
}
return(save);
}
/// <summary>
/// Recycles the name of the and get next file.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="sInfo">The s information.</param>
/// <param name="fileHeader">The file header.</param>
/// <returns></returns>
static public String RecycleAndGetNextFileName(String path, RIAutoSaveInfo sInfo, RIFileHeader fileHeader)
{
DateTime lastDate;
if (fileHeader.FLastDateTime == DateTime.MinValue)
{
lastDate = DateTime.Now;
}
else
{
lastDate = fileHeader.FLastDateTime;
}
if (sInfo.RecycleFilesEvery > 0)
{
String fDir = Path.GetDirectoryName(path);
String fExt = Path.GetExtension(path);
String fName = Path.GetFileName(path).Replace(fExt, String.Empty);
String fSpec = String.Format(@"{0}.*.*{1}", fName, fExt);
String[] files = Directory.GetFiles(fDir, fSpec, SearchOption.TopDirectoryOnly);
if (files.Length >= sInfo.RecycleFilesEvery)
{
StringBuilder sbFile = new StringBuilder();
SortedDictionary <UInt64, String> sortedFiles = new SortedDictionary <UInt64, String>();
foreach (String file in files)
{
sbFile.Length = 0;
sbFile.Append(file);
sbFile.Replace(fDir, String.Empty).Replace(fExt, String.Empty).Replace(fName, String.Empty).Replace(".", String.Empty).Replace(@"\", String.Empty);
UInt64 key = UInt64.Parse(sbFile.ToString());
sortedFiles[key] = file;
}
foreach (UInt64 key in sortedFiles.Keys.ToArray())
{
File.Delete(sortedFiles[key]);
sortedFiles.Remove(key);
if (sortedFiles.Count <= sInfo.RecycleFilesEvery)
{
break;
}
}
}
}
return(GetNextFileName(path, lastDate));
}