public MaterialFactory(string configRoot)
{
var configPath = Path.Combine(configRoot, ConfigurationConstants.MaterialConfigName);
if (File.Exists(configPath) == false)
{
throw new ArgumentException("Material config file does not exist.", nameof(configRoot));
}
ReadMaterialMappingConfig(configPath);
configWatcher = new FileWatcher(configPath);
configWatcher.AddListener(ReadMaterialMappingConfig);
}
