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import store from '@/store';
import EntityService from '@/service/entity-service';
/**
* 动态代码表服务类
*
* @export
* @class CodeListService
*/
export default class CodeListService {
/**
* Vue 状态管理器
*
* @private
* @type {(any | null)}
* @memberof CodeListService
*/
private $store: any;
constructor(opts: any = {}) {
this.$store = store;
}
/**
* 获取状态管理器
*
* @returns {(any | null)}
* @memberof CodeListService
*/
public getStore(): any {
return this.$store;
}
/**
* 动态代码表缓存(加载中)
*
* @type {Map<string,any>}
* @memberof CodeListService
*/
public static codelistCache:Map<string,any> = new Map();
/**
* 动态代码表缓存(已完成)
*
* @type {Map<string,any>}
* @memberof CodeListService
*/
public static codelistCached:Map<string,any> = new Map();
/**
* 数据服务基类
*
* @type {Minorentity}
* @memberof CodeListService
*/
public entityService:EntityService = new EntityService();
/**
* 获取代码表服务
*
* @protected
* @param {string} name 实体名称
* @returns {Promise<any>}
* @memberof EntityService
*/
public getService(name: string): Promise<any> {
return (window as any)['codeListRegister'].getService(name);
}
/**
* 获取代码表数据
*
* @param {string} tag 代码表标识
* @param {*} context
* @param {*} data
* @param {boolean} isloading
* @returns {Promise<any[]>}
* @memberof CodeListService
*/
public async getDataItems(codelist:any,context?:any, data?: any, isloading?: boolean){
let dataItems:Array<any> = [];
try{
if(codelist.tag && Object.is(codelist.type,"STATIC")){
dataItems = await this.getStaticItems(codelist.tag);
}else{
dataItems = await this.getItems(codelist.tag,codelist.context,codelist.viewparam,codelist.isloading);
}
}catch(error){
console.warn("代码表加载异常" + error);
}
return dataItems;
}
/**
* 获取静态代码表
*
* @param {string} tag 代码表标识
* @returns {Promise<any[]>}
* @memberof CodeListService
*/
public getStaticItems(tag: string):Promise<any[]>{
return new Promise((resolve:any,reject:any) =>{
const codelist = this.$store.getters.getCodeList(tag);
if (codelist) {
let items: Array<any> = [...JSON.parse(JSON.stringify(codelist.items))];
resolve(items);
}
})
}
/**
* 获取预定义代码表
*
* @param {string} tag 代码表标识
* @returns {Promise<any[]>}
* @memberof CodeListService
*/
public getPredefinedItems(tag: string,data?: any, isloading?: boolean):Promise<any[]>{
return new Promise((resolve:any,reject:any) =>{
if(CodeListService.codelistCached.get(`${tag}`)){
let items:any = CodeListService.codelistCached.get(`${tag}`).items;
if(items.length >0) resolve(items);
}
const callback:Function = (tag:string,promise:Promise<any>) =>{
promise.then((res:any) =>{
let result:any = res.data;
if(result.items && result.items.length > 0){
CodeListService.codelistCached.set(`${tag}`,{items:result.items});
return resolve(result.items);
}else{
return resolve([]);
}
}).catch((result:any) =>{
return reject(result);
})
}
// 加载中,UI又需要数据,解决连续加载同一代码表问题
if(CodeListService.codelistCache.get(`${tag}`)){
callback(tag,CodeListService.codelistCache.get(`${tag}`));
}else{
let result:Promise<any> = this.entityService.getPredefinedCodelist(tag);
CodeListService.codelistCache.set(`${tag}`,result);
callback(tag,result);
}
})
}
/**
* 获取动态代码表
*
* @param {string} tag 代码表标识
* @param {string} context
* @returns {Promise<any[]>}
* @memberof CodeListService
*/
public getItems(tag: string,context:any = {}, data?: any, isloading?: boolean): Promise<any[]> {
let _this: any = this;
if(context && context.srfsessionid){
delete context.srfsessionid;
}
return new Promise((resolve:any,reject:any) =>{
this.getService(tag).then((codelist:any) =>{
if(Object.is(codelist.predefinedType,"RUNTIME")){
this.getPredefinedItems(tag).then((res:any) =>{
resolve(res);
})
return;
}
let isEnableCache:boolean = codelist.isEnableCache;
let cacheTimeout:any = codelist.cacheTimeout;
// 启用缓存
if(isEnableCache){
const callback:Function = (context:any ={},data:any ={},tag:string,promise:Promise<any>) =>{
const callbackKey:string = `${JSON.stringify(context)}-${JSON.stringify(data)}-${tag}`;
promise.then((result:any) =>{
if(result.length > 0){
CodeListService.codelistCached.set(callbackKey,{items:result});
CodeListService.codelistCache.delete(callbackKey);
return resolve(result);
}else{
return resolve([]);
}
}).catch((result:any) =>{
return reject(result);
})
}
// 加载完成,从本地缓存获取
const key:string = `${JSON.stringify(context)}-${JSON.stringify(data)}-${tag}`;
if(CodeListService.codelistCached.get(key)){
let items:any = CodeListService.codelistCached.get(key).items;
if(items.length >0){
if(new Date().getTime() <= codelist.getExpirationTime()){
return resolve(items);
}
}
}
if (codelist) {
// 加载中,UI又需要数据,解决连续加载同一代码表问题
if(CodeListService.codelistCache.get(key)){
callback(context,data,tag,CodeListService.codelistCache.get(key));
}else{
let result:Promise<any> = codelist.getItems(context,data,isloading);
CodeListService.codelistCache.set(key,result);
codelist.setExpirationTime(new Date().getTime() + cacheTimeout);
callback(context,data,tag,result);
}
}
}else{
if (codelist) {
codelist.getItems(context,data,isloading).then((result:any) =>{
resolve(result);
}).catch((error:any) =>{
Promise.reject([]);
})
}else{
return Promise.reject([]);
}
}
}).catch((error:any) =>{
console.warn("获取代码表异常");
return Promise.reject([]);
})
})
}
}