-
Notifications
You must be signed in to change notification settings - Fork 3
/
receivable.ts
44 lines (37 loc) · 1.24 KB
/
receivable.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
import { InvalidOperationException } from "../exceptions";
import { Activator } from "../reflection";
import { Map } from "../collections";
import IBroadcastReceiver from "./i-broadcast-receiver";
import BroadcastContract from "./broadcast-contract";
import BroadcastManager from "./broadcast-manager";
const receivers = new Map<Function, IBroadcastReceiver>();
/**
* 标注当前类型是一个广播接收器。
* @param uri 广播描述符。
* @param priority 广播优先级。
*/
export default function receivable(uri: string, priority?: number)
{
if(!uri)
{
throw new InvalidOperationException("The broadcast uri is empty.");
}
return function(receiverType: Function): void
{
let receiver = receivers.get(receiverType),
contract = new BroadcastContract(uri);
// 设置优先级
if(priority)
{
contract.priority = priority;
}
// 生成接收器实例
if(!receiver)
{
receiver = Activator.createInstance(receiverType) as IBroadcastReceiver;
receivers.set(receiverType, receiver);
}
// 注册至管理器中
BroadcastManager.instance.register(contract, receiver);
};
}