/// <summary>
/// 构造函数
/// </summary>
public ViewEngineOptions()
{
ReferencedAssemblies = new HashSet <Assembly>()
{
typeof(object).Assembly,
typeof(ViewEngineModel).Assembly,
typeof(System.Collections.IList).Assembly,
typeof(IEnumerable <>).Assembly,
Reflect.GetAssembly("Microsoft.CSharp"),
Reflect.GetAssembly("System.Runtime"),
Reflect.GetAssembly("System.Linq"),
Reflect.GetAssembly("System.Linq.Expressions")
};
}
/// <summary>
/// 获取应用有效程序集
/// </summary>
/// <returns>IEnumerable</returns>
private static (IEnumerable <Assembly> Assemblies, IEnumerable <Assembly> ExternalAssemblies) GetAssemblies()
{
// 需排除的程序集后缀
var excludeAssemblyNames = new string[] {
"Database.Migrations"
};
// 读取应用配置
var supportPackageNamePrefixs = Settings.SupportPackageNamePrefixs ?? Array.Empty <string>();
var dependencyContext = DependencyContext.Default;
// 读取项目程序集或 Furion 官方发布的包，或手动添加引用的dll，或配置特定的包前缀
var scanAssemblies = dependencyContext.RuntimeLibraries
.Where(u =>
(u.Type == "project" && !excludeAssemblyNames.Any(j => u.Name.EndsWith(j))) ||
(u.Type == "package" && (u.Name.StartsWith(nameof(Furion)) || supportPackageNamePrefixs.Any(p => u.Name.StartsWith(p)))) ||
(Settings.EnabledReferenceAssemblyScan == true && u.Type == "reference")) // 判断是否启用引用程序集扫描
.Select(u => Reflect.GetAssembly(u.Name));
IEnumerable <Assembly> externalAssemblies = Array.Empty <Assembly>();
// 加载 `appsetting.json` 配置的外部程序集
if (Settings.ExternalAssemblies != null && Settings.ExternalAssemblies.Any())
{
foreach (var externalAssembly in Settings.ExternalAssemblies)
{
// 加载外部程序集
var assemblyFileFullPath = Path.Combine(AppContext.BaseDirectory
, externalAssembly.EndsWith(".dll") ? externalAssembly : $"{externalAssembly}.dll");
// 根据路径加载程序集
var loadedAssembly = Reflect.LoadAssembly(assemblyFileFullPath);
if (loadedAssembly == default)
{
continue;
}
var assembly = new[] { loadedAssembly };
// 合并程序集
scanAssemblies = scanAssemblies.Concat(assembly);
externalAssemblies = externalAssemblies.Concat(assembly);
}
}
return(scanAssemblies, externalAssemblies);
}
/// <summary>
/// 添加程序集引用
/// </summary>
/// <param name="assemblyName"></param>
public void AddAssemblyReferenceByName(string assemblyName)
{
var assembly = Reflect.GetAssembly(assemblyName);
AddAssemblyReference(assembly);
}
