public void BuildHandler(IApplicationBuilder app, ISerialize serialize)
{
RequestDelegateFactory.CreateDelegate(logger, messageHandler, out List <SubscribeModel> subDelegate).ForEach(x =>
{
app.Map(x.Path, handle =>
{
handle.MapWhen(p => p.Request.Method.Equals("POST"), builder =>
{
builder.Run(async ctx =>
{
using var lifetimescope = Container.BeginLifetimeScope();//每次从静态根容器引用构造一个独立的生命周期范围
await x.Excute(ctx, lifetimescope);
});
});
});
});
if (subDelegate.Any())
{
app.Map("/dapr/subscribe", handle => handle.Run(async ctx =>
{
ctx.Response.ContentType = "application/json";
await ctx.Response.WriteAsync(serialize.SerializesJson(subDelegate));
}));
}
}
public ISharingLifetimeScope FindScope(ISharingLifetimeScope mostNestedVisibleScope)
{
#if NetCore
var context = _container.GetInstance <IHttpContextAccessor>()?.HttpContext;
if (context == null)
{
return(null);
}
if (!context.Items.ContainsKey(typeof(IComponentLifetime)))
{
lock (context)
{
if (!context.Items.ContainsKey(typeof(IComponentLifetime)))
{
var scope = (ISharingLifetimeScope)mostNestedVisibleScope.BeginLifetimeScope(mostNestedVisibleScope.ComponentRegistry);
context.Items[typeof(IComponentLifetime)] = scope;
return(scope);
}
}
}
return((ISharingLifetimeScope)context.Items[typeof(IComponentLifetime)]);
#else
var context = System.Web.HttpContext.Current;
if (context == null)
{
return(null);
}
if (!context.Items.Contains(typeof(IComponentLifetime)))
{
lock (context.Items.SyncRoot)
{
if (!context.Items.Contains(typeof(IComponentLifetime)))
{
var scope = (ISharingLifetimeScope)mostNestedVisibleScope.BeginLifetimeScope(mostNestedVisibleScope.ComponentRegistry);
context.Items[typeof(IComponentLifetime)] = scope;
context.DisposeOnPipelineCompleted(scope);
return(scope);
}
}
}
return((ISharingLifetimeScope)context.Items[typeof(IComponentLifetime)]);
#endif
}
public async Task SubscribeHandleInvoke()
{
await foreach (var message in Pipline.Reader.ReadAllAsync())
{
try
{
using var lifescope = Container.BeginLifetimeScope();
await EventHandler(message, lifescope);
}
catch (Exception e)
{
logger.LogError($"进程内订阅器消息处理异常：{e.Message}，调用堆栈：{e.StackTrace}");
}
}
}
