public static <T> T getCacheFile(InputBase input, Class<T> clazz) {
Cache cache = requestQueue.getCache();
Request<T> request =
new GsonRequest<T>(input.method(), input.toString(), "", clazz, null, null, null, null);
Cache.Entry entry = cache.get(request.getCacheKey());
if (entry != null) {
try {
String json = new String(entry.data, "UTF-8");
if (clazz == String.class) {
return (T) json;
}
// File类型写文件后返回file对象
else if (clazz == File.class) {
String fileName = TextUtil.md5(input.toString());
File outFile =
new File(DirectoryManager.getDirectory(DirectoryManager.DIR.DATA), fileName);
FileUtils.writeFile(outFile.getAbsolutePath(), entry.data);
return (T) outFile;
}
// 替换服务端可能返回的错误的data格式
json = json.replace("\"data\":[]", "\"data\":{}");
// 服务器返回errNo=0
if (json.matches(ERROR_NO_0_EXPRESSION)) {
T data;
JSONObject jsonObject = new JSONObject(json);
json = jsonObject.getString("data");
// 其他属于Gson请求，解析对象返回
Gson gson = GsonUtil.createBuilder();
data = (T) gson.fromJson(json, clazz);
return data;
}
// 服务器返回errNo != 0
else {
return null;
}
} catch (Exception e) {
return null;
}
}
return null;
}
public static <T> void removeCacheFile(InputBase input, Class<T> clazz) {
Cache cache = requestQueue.getCache();
Request<T> request =
new GsonRequest<T>(input.method(), input.toString(), "", clazz, null, null, null, null);
cache.remove(request.getCacheKey());
}
