ResourcesUtils.ets
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import buffer from '@ohos.buffer';
import { Logger } from './Logger';
const TAG = "ResourcesUtils";
// 默认针对entry/src/main/resources/rawfile目录下的文件：
const JSON_FILE_NAME = "agconnect-services.json";
export class ResourcesUtils {
/**
* 获取资源字符串内容
* @param context
* @param filename 仅文件名(不包含路径,文件在src\main\resources\rawfile下),如："agconnect-services.json",test.xml,
* @returns text 字符串
*/
static getResourcesText(context: Context, filename: string): Promise<string> {
return new Promise((success, error) => {
Logger.info(TAG, "ResourcesUtils getResourcesText filename:" + filename);
context.resourceManager.getRawFileContent(filename).then((content: Uint8Array) => {
if (!content) {
Logger.warn(TAG, 'getResourcesText then content is empty');
error("file is empty");
return
}
try {
let text = buffer.from(content).toString("utf8");
if (text) {
Logger.info(TAG, "getResourcesText then text:" + text);
success(text);
} else {
Logger.warn(TAG, "getResourcesText then text is empty");
error("resources file text is empty");
}
} catch (err) {
// 转换异常
Logger.error(TAG, `getResourcesText catch err.: ${err}`);
}
}).catch((err: Error) => {
Logger.error(TAG, `getResourcesText getRawFileContent catch, error.name : ${err.name}, error.message:${err.message}`);
error(err);
})
})
}
/**
* 获取资源文件并转为JSON
*
* @param appContext 上下文
* @param filename 仅文件名(不包含路径,文件在src\main\resources\rawfile下),如："agconnect-services.json"
* SubscribeListData.json
* @returns JSON Object
*
* 调用方式：
* let compRes: MGHttp.ResponseDTO<BodyComponent> = await ResourcesUtils.getResourcesJson<MGHttp.ResponseDTO<BodyComponent>>(context, 'model/componentList.json');
*/
static getResourcesJson<R>(context:Context, filename: string): Promise<R> {
Logger.info(TAG, `getResourcesJson filename: ${filename}`);
return new Promise<R>((resolve, reject) => {
ResourcesUtils.getResourcesText(context, filename)
.then((text: string) => {
try {
// let config: R = JSON.parse(text)
let config:R = JSON.parse(text) as R;
if (config) {
Logger.info(TAG, "getResourcesJson parse JSON file success.");
// Logger.info(TAG, `getResourcesJson config : ${JSON.stringify(config)}`);
resolve(config);
} else {
reject("getResourcesJson parse JSON file result is empty");
}
} catch (err) {
// json解析异常
Logger.error(TAG, `getResourcesJson catch parse failed.: ${err}`);
reject(err)
}
})
.catch((error:Error) => {
reject(error)
})
})
}
}