增加消息服务注册中心

APP/src/message/message-service-register.ts.ftl

+<#ibiztemplate>
+TARGET=PSSYSAPP
+</#ibiztemplate>
+/**
+ * 视图消息服务注册中心
+ *
+ * @export
+ * @class MessageServiceRegister
+ */
+export class MessageServiceRegister {
+
+    /**
+     * 所有视图消息服务Map
+     *
+     * @protected
+     * @type {*}
+     * @memberof MessageServiceRegister
+     */
+    protected allMessageService: Map<string, () => Promise<any>> = new Map();
+
+    /**
+     * 已加载视图消息服务Map缓存
+     *
+     * @protected
+     * @type {Map<string, any>}
+     * @memberof MessageServiceRegister
+     */
+    protected serviceCache: Map<string, any> = new Map();
+
+    /**
+     * Creates an instance of MessageServiceRegister.
+     * @memberof MessageServiceRegister
+     */
+    constructor() {
+        this.init();
+    }
+
+    /**
+     * 初始化
+     *
+     * @protected
+     * @memberof MessageServiceRegister
+     */
+    protected init(): void {
+        <#if app.getAllPSAppViewMsgs()??>
+        <#list app.getAllPSAppViewMsgs() as viewMsg>
+        this.allMessageService.set('${viewMsg.getCodeName}', () => import('@/message/${srffilepath2(viewMsg.getCodeName())}/${srffilepath2(viewMsg.getCodeName())}-message'));
+        </#list>
+        </#if>
+    }
+
+    /**
+     * 加载视图消息服务
+     *
+     * @protected
+     * @param {string} codeName
+     * @returns {Promise<any>}
+     * @memberof MessageServiceRegister
+     */
+    protected async loadService(codeName: string): Promise<any> {
+        const service = this.allMessageService.get(codeName);
+        if (service) {
+            return service();
+        }
+    }
+
+    /**
+     * 获取视图消息服务
+     *
+     * @param {string} name
+     * @returns {Promise<any>}
+     * @memberof MessageServiceRegister
+     */
+    public async getService(name: string): Promise<any> {
+        if (this.serviceCache.has(name)) {
+            return this.serviceCache.get(name);
+        }
+        const messageService: any = await this.loadService(name);
+        if (messageService && messageService.default) {
+            const instance: any = new messageService.default();
+            this.serviceCache.set(name, instance);
+            return instance;
+        }
+    }
+
+}
+export const messageServiceRegister: MessageServiceRegister = new MessageServiceRegister();
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