public EntityTemplateCollection(params string[] templateFolders)
{
var currentAssembly = Assembly.GetExecutingAssembly();
var embeddedTemplateResourceNames = currentAssembly.GetManifestResourceNames().Where(n => n.EndsWith(".json"));
foreach (var embeddedResourceName in embeddedTemplateResourceNames)
{
using var stream = currentAssembly.GetManifestResourceStream(embeddedResourceName);
if (stream == null) //just in case, should never happen
{
continue;
}
using var reader = new StreamReader(stream);
var template = EntityTemplate.Parse(reader.ReadToEnd());
_loadedTemplates.Add(template.Id ??
throw new InvalidDataException($"Error loading embedded template '{embeddedResourceName}'. Expected for its ID to be non null, but it wasn't"),
template);
}
foreach (var folder in templateFolders.Where(Directory.Exists))
{
foreach (var templateFilename in Directory.EnumerateFiles(folder, "*.json", SearchOption.AllDirectories))
{
LoadTemplate(templateFilename);
}
}
foreach (var template in _loadedTemplates.OrderBy(x => x.Value.Inherits.Count))
{
InitializeInheritChains(template.Value);
}
}
private void LoadTemplate(string filename)
{
if (!File.Exists(filename))
{
throw new FileNotFoundException("Couldn't find template file.", filename);
}
try
{
var template = EntityTemplate.Parse(File.ReadAllText(filename));
#if NETSTANDARD2_1
if (!_loadedTemplates.TryAdd(template.Id, template))
{
throw new DuplicateTemplateException(template.Id, filename);
}
#else
if (!_loadedTemplates.ContainsKey(template.Id))
{
_loadedTemplates.Add(template.Id, template);
}
else
{
throw new DuplicateTemplateException(template.Id, filename);
}
#endif
}
catch (Exception e)
{
_parsingFailures.Add(new TemplateParseFailedInfo
{
Exception = e,
TemplateFilePath = filename
});
}
}