Exemplo n.º 1
0
        private void GetDataLayerTypes(ref DataLayers dataLayers, Assembly[] domainAssemblies)
        {
            foreach (Assembly asm in domainAssemblies)
            {
                Type[] asmTypes = null;
                try
                {
                    asmTypes = asm.GetTypes().Where(a => a != null && (
                                                        (typeof(IDataLayer).IsAssignableFrom(a) && !(a.IsInterface || a.IsAbstract)) ||
                                                        (typeof(ILightweightDataLayer).IsAssignableFrom(a) && !(a.IsInterface || a.IsAbstract)))
                                                    ).ToArray();
                }
                catch (ReflectionTypeLoadException e)
                {
                    // if we are running the the iRing site under Anonymous authentication with the DefaultApplicationPool Identity we
                    // can run into ReflectionPermission issues but as our datalayer assemblies are in our web site's bin folder we
                    // should be able to ignore the exceptions and work with the accessibe types loaded in e.Types.
                    asmTypes = e.Types.Where(a => a != null && (
                                                 (typeof(IDataLayer).IsAssignableFrom(a) && !(a.IsInterface || a.IsAbstract)) ||
                                                 (typeof(ILightweightDataLayer).IsAssignableFrom(a) && !(a.IsInterface || a.IsAbstract)))
                                             ).ToArray();
                    _logger.Warn("GetTypes() for " + asm.FullName + " cannot access all types, but datalayer loading is continuing: " + e);
                }

                try
                {
                    if (asmTypes.Any())
                    {
                        _logger.Debug("assembly:" + asm.FullName);
                        foreach (System.Type asmType in asmTypes)
                        {
                            _logger.Debug("asmType:" + asmType.ToString());

                            bool   isLW         = typeof(ILightweightDataLayer).IsAssignableFrom(asmType) && !(asmType.IsInterface || asmType.IsAbstract);
                            bool   configurable = asmType.BaseType.Equals(typeof(BaseConfigurableDataLayer));
                            string name         = asm.FullName.Split(',')[0];

                            if (name.ToLower() == "NHibernateExtension".ToLower())
                            {
                                continue;
                            }

                            if (!dataLayers.Exists(x => x.Name.ToLower() == name.ToLower()))
                            {
                                string assembly = string.Format("{0}, {1}", asmType.FullName, name);

                                DataLayer dataLayer = new DataLayer
                                {
                                    Assembly      = assembly,
                                    Name          = name,
                                    IsLightweight = isLW,
                                    Configurable  = configurable
                                };

                                dataLayers.Add(dataLayer);
                            }
                        }
                    }
                }
                catch (Exception e)
                {
                    _logger.Error("Error loading data layer (while getting assemblies): " + e);
                }
            }
        }