+ string year_name;
+
+ ret_val = NULL;
+ if (period_type_param == PERIOD_YEARLY) {
+ snprintf(buffer, 30, "%d", date_param->year);
+ year_name.append(buffer);
+ device_dir = DeviceConfig::get_base_dir_name();
+ device_dir = W1Util::concat_paths(device_dir, device_id_param);
+ year_dr = W1Util::concat_paths(device_dir, year_name);
+ mon_vcr = W1Util::get_subdirectories(year_dr);
+ for (ii = mon_vcr.size() - 1; ii >= 0; ii--) {
+ mon_dr = mon_vcr.at(ii);
+ mon_dr = W1Util::concat_paths(year_dr, mon_dr);
+ // scan data files from month dir
+ dta_vcr = W1Util::get_data_files(mon_dr);
+ size = dta_vcr.size();
+ if (size > 0) {
+ f_name = dta_vcr.at(size - 1);
+ f_name = W1Util::concat_paths(mon_dr, f_name);
+ store = new StoreDay(f_name);
+ ret_val = store->get_newest_data();
+ delete(store);
+ break;
+ }
+ }
+ }
+ else if (period_type_param == PERIOD_MONTHLY) {
+ ret_val = NULL;
+ snprintf(buffer, 30, "%d", date_param->year);
+ year_name.append(buffer);
+ device_dir = DeviceConfig::get_base_dir_name();
+ device_dir = W1Util::concat_paths(device_dir, device_id_param);
+ year_dr = W1Util::concat_paths(device_dir, year_name);
+ snprintf(buffer, 30, "%02d", date_param->month);
+ mon_dr.append(buffer);
+ mon_dr = W1Util::concat_paths(year_dr, mon_dr);
+ // scan data files from month dir
+ dta_vcr = W1Util::get_data_files(mon_dr);
+ size = dta_vcr.size();
+ if (size > 0) {
+ f_name = dta_vcr.at(size - 1);
+ f_name = W1Util::concat_paths(mon_dr, f_name);
+ store = new StoreDay(f_name);
+ ret_val = store->get_newest_data();
+ delete(store);
+ }
+
+ }
+ else {
+ store = new StoreDay(device_id_param, date_param);
+ ret_val = store->get_newest_data();
+ delete(store);
+ }