/// <summary>
/// Scans for plugin files in the current directory.
/// </summary>
///<param name="folder"></param>
///<returns></returns>
protected IList <ObjectCreator> ScanForPlugins(string folder)
{
var pluginFactories = new List <ObjectCreator>();
#if NET_40 && !(XBOX || XBOX360 || WINDOWS_PHONE)
this.SatisfyImports(folder);
foreach (var plugin in plugins)
{
pluginFactories.Add(new ObjectCreator(plugin.GetType()));
Debug.WriteLine(String.Format("MEF IPlugin: {0}.", plugin));
}
#elif !(WINDOWS_PHONE)
if (Directory.Exists(folder))
{
var files = Directory.GetFiles(folder);
//var assemblyName = Assembly.GetExecutingAssembly().GetName().Name + ".dll";
foreach (var file in files)
{
var currentFile = Path.GetFileName(file);
if (Path.GetExtension(file) != ".dll" /*|| currentFile == assemblyName */)
{
continue;
}
var fullPath = Path.GetFullPath(file);
if (!_isValidModule(fullPath))
{
Debug.WriteLine(String.Format("Skipped {0} [Not managed]", fullPath));
continue;
}
var loader = new DynamicLoader(fullPath);
pluginFactories.AddRange(loader.Find(typeof(IPlugin)));
}
}
#endif
return(pluginFactories);
}
/// <summary>
/// Internal constructor. This class cannot be instantiated externally.
/// </summary>
internal PlatformManager()
{
// First look in current Executing assembly for a PlatformManager
if (instance == null)
{
var platformMgr = new DynamicLoader();
var platforms = platformMgr.Find(typeof(IPlatformManager));
if (platforms.Count != 0)
{
instance = platformMgr.Find(typeof(IPlatformManager))[0].CreateInstance <IPlatformManager>();
}
}
#if NET_40 && !(XBOX || XBOX360 || WINDOWS_PHONE)
if (instance == null)
{
this.SatisfyImports(".");
if (platforms != null && platforms.Count() != 0)
{
instance = platforms.First();
System.Diagnostics.Debug.WriteLine(String.Format("MEF IPlatformManager: {0}.", instance));
}
}
#endif
#if !(SILVERLIGHT || WINDOWS_PHONE || XBOX || XBOX360 || NETFX_CORE)
// Then look in loaded assemblies
if (instance == null)
{
var assemblies = AppDomain.CurrentDomain.GetAssemblies();
for (var index = 0; index < assemblies.Length && instance == null; index++)
{
//TODO: NRSC Added: Deal with Dynamic Assemblies not having a Location
//if (assemblies[index].IsDynamic)
// continue;
try
{
var platformMgr = new DynamicLoader(assemblies[index]);
var platforms = platformMgr.Find(typeof(IPlatformManager));
if (platforms.Count != 0)
{
instance = platformMgr.Find(typeof(IPlatformManager))[0].CreateInstance <IPlatformManager>();
}
}
catch (Exception)
{
System.Diagnostics.Debug.WriteLine(String.Format("Failed to load assembly: {0}.", assemblies[index].FullName));
}
}
}
// Then look in external assemblies
if (instance == null)
{
// find and load a platform manager assembly
var cwd = Assembly.GetExecutingAssembly().CodeBase;
var uri = new Uri(cwd);
if (uri.IsFile)
{
cwd = Path.GetDirectoryName(uri.LocalPath);
}
var files = Directory.GetFiles(cwd, "Axiom.Platforms.*.dll").ToArray();
var file = "";
// make sure there is 1 platform manager available
if (files.Length == 0)
{
throw new PluginException("A PlatformManager was not found in the execution path, and is required.");
}
else
{
var isWindows = IsWindowsOS;
var platform = IsWindowsOS ? "Windows" : "Linux";
if (files.Length == 1)
{
file = files[0];
}
else
{
for (var i = 0; i < files.Length; i++)
{
if ((files[i].IndexOf(platform) != -1) == true)
{
file = files[i];
}
}
}
System.Diagnostics.Debug.WriteLine(String.Format("Selected the PlatformManager contained in {0}.", file));
}
var path = Path.Combine(System.IO.Directory.GetCurrentDirectory(), file);
var platformMgr = new DynamicLoader(path);
var platforms = platformMgr.Find(typeof(IPlatformManager));
if (platforms.Count != 0)
{
instance = platformMgr.Find(typeof(IPlatformManager))[0].CreateInstance <IPlatformManager>();
}
}
#endif
// All else fails, yell loudly
if (instance == null)
{
throw new PluginException("The available Platform assembly did not contain any subclasses of PlatformManager, which is required.");
}
}
