public static void Save(Swatch swatch, string filename, ISwatchFile fileType = null)
{
if (swatch == null || filename == null)
{
throw new ArgumentNullException();
}
if (fileType == null)
{
var extension = Path.GetExtension(filename);
fileType = SupportedWrite.FirstOrDefault(f => f.Extensions.Contains(extension, StringComparer.OrdinalIgnoreCase));
if (fileType == null)
{
throw new NotSupportedException($"Not supported file type [{extension}].");
}
}
if (!fileType.SupportSave)
{
throw new NotSupportedException($"Not supported to save file as type [{fileType.Name}].");
}
var fileInfo = new FileInfo(filename);
if (fileInfo.Exists && fileInfo.IsReadOnly)
{
throw new Exception($"The file is read only.");
}
using (var stream = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write))
{
fileType.Save(swatch, stream);
swatch.FileName = filename;
}
}
public static void Save(Swatch swatch, Stream stream, ISwatchFile fileType)
{
if (swatch == null || fileType == null)
{
throw new ArgumentNullException();
}
if (!fileType.SupportSave)
{
throw new NotSupportedException($"Not supported to save file as type [{fileType.Name}].");
}
fileType.Save(swatch, stream);
}
public static Swatch Load(string filename, ISwatchFile fileType = null)
{
if (string.IsNullOrEmpty(filename) || !File.Exists(filename))
{
throw new FileNotFoundException();
}
var extension = Path.GetExtension(filename);
if (fileType == null)
{
var fileTypes = SupportedRead.Where(f => f.Extensions.Contains(extension, StringComparer.OrdinalIgnoreCase)).ToList();
if (fileTypes.Count > 1)
{
fileType = fileTypes.FirstOrDefault(ft => ft.CanLoad(filename));
if (fileType == null)
{
throw new NotSupportedException($"Not supported file type [{extension}].");
}
}
else if (fileTypes.Count == 1)
{
fileType = fileTypes[0];
}
}
if (fileType != null)
{
using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read))
{
var swatch = fileType.Load(stream);
if (swatch != null)
{
swatch.FileName = filename;
}
return(swatch);
}
}
else
{
throw new NotSupportedException($"Not supported file type [{extension}].");
}
}
public static Task <Swatch> LoadAsync(string filename, ISwatchFile fileType = null)
{
return(Task.Run(() => Load(filename, fileType)));
}
public static Task SaveAsync(Swatch swatch, Stream stream, ISwatchFile fileType = null)
{
return(Task.Run(() => Save(swatch, stream, fileType)));
}
public static Task SaveAsync(Swatch swatch, string filename, ISwatchFile fileType = null)
{
return(Task.Run(() => Save(swatch, filename, fileType)));
}
