private static void ExamineAssembly(Assembly objDll, string interfaceName, ArrayList plugins, ConstructorInfo[] constructors)
{
foreach (Type type in objDll.GetTypes())
{
if (type.IsPublic)
{
if ((type.Attributes & TypeAttributes.Abstract) != TypeAttributes.Abstract)
{
Type objInterface = type.GetInterface(interfaceName, true);
bool constructorsMatch = true;
if (constructors != null)
{
int i = 0;
while (constructorsMatch && (i < constructors.Length))
{
constructorsMatch = type.GetConstructor(getParameterTypes(constructors[i].GetParameters())) != null;
i++;
}
}
if (objInterface != null && constructorsMatch)
{
AvailablePlugin plugin = new AvailablePlugin();
plugin.className = type.FullName;
plugin.assemblyPath = objDll.Location;
plugins.Add(plugin);
}
}
}
}
}
public static object getPluginInstance(AvailablePlugin plugin, object[] args)
{
//try {
Assembly dll = Assembly.LoadFrom(plugin.assemblyPath);
object obj = dll.CreateInstance(plugin.className, true, BindingFlags.CreateInstance, null, args, null, null);
return(obj);
//} catch {
// throw new Exception(String.Format("Couldn't initialize {0} project. Possible reasons:" +
// "\n\t- Errors while parsing xml file containing project data," +
// "\n\t- Errors in project implementation," +
// "\n\t- Project doesn't implement Evel.engine.ProjectBase class constructors",
// Path.GetFileName(plugin.assemblyPath)));
//}
}
public static object getPluginInstance(AvailablePlugin plugin)
{
//try {
Assembly dll = Assembly.LoadFrom(plugin.assemblyPath);
object obj = dll.CreateInstance(plugin.className);
return(obj);
//} catch (Exception e) {
//throw new Exception(String.Format("Couldn't initialize {0} model. Possible reasons:"+
// "\n\t- Errors while parsing xml file containing model data," +
// "\n\t- Errors in model implementation," +
// "\n\t- Missing deltax definition file ({1})," +
// "\n\t- Deltax definition file is not a valid xml document.",
// Path.GetFileName(plugin.assemblyPath), Path.ChangeExtension(Path.GetFileName(plugin.assemblyPath), "xml")));
//}
}
public static AvailablePlugin[] getPlugins(string path, string interfaceName, ConstructorInfo[] constructors)
{
ArrayList plugins = new ArrayList();
Assembly objDll;
string[] dlls = Directory.GetFiles(path, "*.dll");
try {
foreach (string dllName in dlls)
{
objDll = Assembly.LoadFrom(dllName);
ExamineAssembly(objDll, interfaceName, plugins, constructors);
}
} catch (Exception e) {
Console.WriteLine(e.Message);
}
AvailablePlugin[] result = null;
if (plugins.Count > 0)
{
result = new AvailablePlugin[plugins.Count];
plugins.CopyTo(result);
}
return(result);
}
