/// <summary>
/// 预先注入调试目标服务实例，防止从存储加载
/// </summary>
internal void InjectDebugService(ulong debugSessionId)
{
var debugFolder = Path.Combine(AppContext.BaseDirectory, "debug", debugSessionId.ToString());
if (!Directory.Exists(debugFolder))
{
Log.Warn("Start debug process can't found target folder.");
return;
}
var files = Directory.GetFiles(debugFolder);
var asmLoader = new ServiceAssemblyLoader(Path.Combine(debugFolder, "lib"));
for (int i = 0; i < files.Length; i++)
{
if (Path.GetExtension(files[i]) == ".dll")
{
var sr = Path.GetFileName(files[i]).Split('.');
var asm = asmLoader.LoadFromAssemblyPath(files[i]);
var type = asm.GetType($"{sr[0]}.ServiceLogic.{sr[2]}", true);
var instance = (IService)Activator.CreateInstance(type);
services.TryAdd($"{sr[0]}.{sr[2]}", new ServiceInfo {
Instance = instance, Loader = asmLoader
});
Log.Debug("Inject debug service instance:" + files[i]);
}
}
}
/// <summary>
/// 根据名称获取运行时服务实例
/// </summary>
/// <param name="name">eg:sys.HelloService</param>
public async ValueTask <IService> TryGetAsync(string name)
{
if (services.TryGetValue(name, out ServiceInfo service))
{
return(service.Instance);
}
//加载服务模型的组件
var asmData = await Store.ModelStore.LoadServiceAssemblyAsync(name);
if (asmData == null || asmData.Length == 0)
{
Log.Warn($"无法从存储加载ServiceAssembly: {name}");
return(null);
}
//释放应用的第三方组件为临时文件，因非托管组件只能从文件加载
//TODO:避免重复释放或者考虑获取服务模型后根据引用释放
var dotIndex = name.AsSpan().IndexOf('.');
var appName = name.AsSpan(0, dotIndex).ToString();
var libPath = Path.Combine(Consts.LibPath, appName);
await Store.ModelStore.ExtractAppAssemblies(appName, libPath);
lock (services)
{
if (!services.TryGetValue(name, out service))
{
var asmLoader = new ServiceAssemblyLoader(libPath);
var asm = asmLoader.LoadServiceAssembly(asmData);
var sr = name.Split('.');
var type = asm.GetType($"{sr[0]}.ServiceLogic.{sr[1]}", true);
var instance = (IService)Activator.CreateInstance(type);
service = new ServiceInfo {
Instance = instance, Loader = asmLoader
};
services.TryAdd(name, service);
Log.Debug($"加载服务实例: {asm.FullName}");
}
}
return(service.Instance);
}
