/// <summary>
/// </summary>
public void ForEachWithOverwritingTempFile <T>(IEnumerable <T> coll, string fileNamePrefix, Action <T, TempFile, TempFile> actionF)
{
if (coll == null || !coll.Any())
{
return;
}
string permFilename = fileNamePrefix;
string tempFilename = fileNamePrefix + ".tmp";
foreach (T elem in coll)
{
TempFile permFile = NewPermaFile(permFilename);
TempFile tempFile = NewTempFile(tempFilename);
try
{
actionF(elem, permFile, tempFile);
}
finally
{
if (File.Exists(tempFile.FilePath))
{
tempFile.MoveTo(permFile);
}
}
}
}
/// <summary>
/// Creates 1 perma file and 1 temp file, using the fileNameTemplate, and applies an action to the
/// both TempFile objects, overwriting the perma file with the temp file.
/// </summary>
public void WithOverwritingTempFile(string fileNameTemplate, Action <TempFile, TempFile> actionF)
{
string permFilename = fileNameTemplate;
string tempFilename = fileNameTemplate + ".tmp";
TempFile permFile = NewPermaFile(permFilename);
TempFile tempFile = NewTempFile(tempFilename);
try
{
actionF(permFile, tempFile);
}
finally
{
if (File.Exists(tempFile.FilePath))
{
tempFile.MoveTo(permFile);
}
}
}