/// <summary>
/// Returns all registered <code>FileWriter</code>s that can write the object and satisfy both the filter and format preference.
/// Writers are sorted by descending relevance as determined by the <code>FormatPreference</code>.
/// </summary>
/// <param name="obj">Object for the <code>FileReader.CanRead</code> check</param>
/// <param name="pref">A format preference used to filter and rank writers</param>
/// <param name="filter">A filter to select only some writers</param>
/// <returns>All registered <code>FileWriter</code>s that can write the object and satisfy both the filter and format preference</returns>
public static List <FileWriter> FindWriters(object obj, FormatPreference pref, Predicate <FileWriter> filter = null)
{
var writers = FindWriters(obj, fw => (filter?.Invoke(fw) ?? true) && (pref ?? FormatPreference.Default).Allows(fw)).ToList();
writers.Sort(pref ?? FormatPreference.Default);
return(writers);
}
public static void Encode <T>(T obj, string baseName, FileSystem fs, FormatPreference pref, FileList files) where T : class
{
pref = pref ?? FormatPreference.Default;
var writers = FindWriters <T>(obj, pref).ToList();
if (!writers.Any())
{
throw new InvalidOperationException("No writer found for type " + typeof(T).Name);
}
writers.First().Write(obj, baseName, fs, files);
}
public static void EncodeObject(object obj, string baseName, FileSystem fs, FormatPreference pref, FileList files)
{
pref = pref ?? FormatPreference.Default;
var writers = FindWriters(obj, pref);
if (!writers.Any())
{
throw new InvalidOperationException("No writer found for object");
}
writers.First().WriteObject(obj, baseName, fs, files);
}
public static Format EncodeObject(object obj, Stream s, FormatPreference pref)
{
pref = pref ?? FormatPreference.Default;
var writers = FindWriters(obj, pref);
if (!writers.Any())
{
throw new InvalidOperationException("No writer found for object");
}
var fileWriter = writers.First();
fileWriter.WriteObject(obj, s);
return(fileWriter.Format);
}
/// <summary>
/// Returns all registered <code>FileWriter<T></code>s with that can write the object and satisfy the format preference.
/// </summary>
/// <param name="obj">Object for the <code>FileReader.CanRead</code> check</param>
/// <param name="pref">A format preference used to filter and rank writers</param>
/// <returns>All registered <code>FileWriter</code>s that can write the object and satisfy the format preference</returns>
public static IEnumerable <FileWriter <T> > FindWriters <T>(object obj, FormatPreference pref) where T : class
{
return(FindWriters(obj, pref, fw => fw is FileWriter <T>).Cast <FileWriter <T> >());
}
