private CollectionFile FromDbFile(CollectionFSFile dbFile)
{
string filePath = GetFilePath(dbFile);
return(new CollectionFile
{
Id = dbFile.Id,
ElementId = dbFile.ElementId,
Path = filePath
});
}
/// <inheritdoc />
public bool DeleteById(int id)
{
try
{
CollectionFSFile dbFile = DbFiles.FindById(id);
if (dbFile == null)
{
return(false);
}
File.Delete(GetFilePath(dbFile));
DbFiles.Delete(dbFile.Id);
return(true);
}
catch (Exception ex)
{
LogTo.Error(ex,
"CollectionFS: DeleteById threw an exception.");
return(false);
}
}
private string GetFilePath(CollectionFSFile dbFile)
{
return(SMA.Collection.GetSMAElementsFilePath(dbFile.ElementId,
$"{dbFile.Id}{GetFileExtension(dbFile.Extension)}"));
}
public CollectionFile Create(
[NotNull] ISMAPlugin requester,
int elementId,
[NotNull] Action <Stream> streamWriter,
string extension,
string crc32 = null)
{
if (elementId <= 0)
{
return(null);
}
CollectionFSFile dbFile = null;
try
{
extension = extension?.TrimStart('.');
dbFile = new CollectionFSFile
{
ElementId = elementId,
Extension = extension ?? string.Empty,
PluginId = requester.Id
};
dbFile.Id = DbFiles.Insert(dbFile).AsInt32;
CollectionFile colFile = FromDbFile(dbFile);
DirectoryEx.EnsureExists(Path.GetDirectoryName(colFile.Path));
using (var stream = File.Open(colFile.Path,
System.IO.FileMode.Create,
FileAccess.ReadWrite))
streamWriter(stream);
if (crc32 != null)
{
var fsCrc32 = FileEx.GetCrc32(colFile.Path);
if (fsCrc32 != crc32)
{
throw new IOException($"CRC32 did not match for file {colFile.Path}. Expected {crc32}, got {fsCrc32}");
}
}
return(colFile);
}
catch (Exception ex)
{
LogTo.Error(ex,
"CollectionFS: Create threw an exception.");
try
{
if (dbFile != null)
{
DbFiles.Delete(dbFile.Id);
}
}
catch (Exception dbEx)
{
LogTo.Error(dbEx,
"CollectionFS: Create threw an exception. Exception's DB cleanup code threw an exception");
}
throw;
}
}
