/// <summary>
/// Loads all modules that are discoverable by provided <paramref name="moduleDiscovery"/>,
/// and are not filtered out by provided <see cref="IModuleFilter"/>.
/// </summary>
/// <remarks>
/// This method will try to load all modules that match requirements regardless to whether
/// other modules succeed to load or fail to.
/// </remarks>
/// <param name="moduleDiscovery">Source of all modules that can and should be loaded.</param>
/// <exception cref="ArgumentNullException">When <paramref name="moduleDiscovery"/> is <c>null</c></exception>
/// <exception cref="NomadCouldNotLoadModuleException">
/// If any of the modules fail to load for any reason, exception will be raised,
/// and some information about the failure will be provided.
/// </exception>
public void LoadModules(IModuleDiscovery moduleDiscovery)
{
if (moduleDiscovery == null)
{
throw new ArgumentNullException("moduleDiscovery");
}
// pass to filtering
var allModules = moduleDiscovery.GetModules();
var filteredModules = allModules.Where(module => _moduleFilter.Matches(module));
var modulesToSort = filteredModules.Union(_moduleLoader.GetLoadedModules());
// perform fail safe dependency checking
IEnumerable <ModuleInfo> dependencyCheckedModules;
try
{
dependencyCheckedModules = _dependencyChecker.SortModules(modulesToSort);
}
catch (ArgumentException e)
{
throw new NomadCouldNotLoadModuleException("Dependency resolving failed due to arguments.", e, e.ParamName);
}
catch (Exception e)
{
throw new NomadCouldNotLoadModuleException(
"Unknown error during dependency resolving", e);
}
// perform fail safe loading
try
{
//skip items which are loaded
var modulesToLoad = dependencyCheckedModules.Where(x => filteredModules.Contains(x));
foreach (var moduleInfo in modulesToLoad)
{
LoadSingleModule(moduleInfo);
}
}
catch (Exception e)
{
throw new NomadCouldNotLoadModuleException("Loading one of modules failed", e);
}
}
