4 * Created on: Nov 7, 2010
16 #include "DataReader.hh"
17 #include "DeviceConfig.hh"
18 #include "FileUtil.hh"
19 #include "StoreDay.hh"
20 #include "StoreCache.hh"
25 template <class NumberDataType>
26 bool string_to_number(NumberDataType& result,
27 const std::string& string_param,
28 std::ios_base& (*format)(std::ios_base&))
30 istringstream iss(string_param);
31 return !(iss >> format >> result).fail();
34 DataReader::DataReader(string device_id_param) {
38 device_id = device_id_param;
39 base_dir = DeviceConfig::get_base_dir_name();
40 device_dir = FileUtil::concat_paths(base_dir, device_id);
41 device_ch_dir = FileUtil::concat_paths(base_dir, "cache");
42 device_ch_dir = FileUtil::concat_paths(device_ch_dir, device_id);
45 DataReader::~DataReader() {
46 if (device_config != NULL) {
47 delete(device_config);
52 Data *DataReader::find_latest_data(vector<string> year_name_vector_param) {
60 size = year_name_vector_param.size();
62 // dirs are alphabetically sorted
63 year_name = year_name_vector_param.at(size - 1);
64 string_to_number<int>(val_int, year_name, dec);
66 ret_val = StoreCache::get_latest_data(&date, device_id, PERIOD_YEARLY);
71 Data *DataReader::get_latest_data() {
72 vector<string> y_list;
76 y_list = FileUtil::get_subdirectories(device_dir);
77 ret_val = find_latest_data(y_list);
81 Data *DataReader::find_oldest_data(vector<string> year_name_vector_param) {
89 size = year_name_vector_param.size();
91 // dirs are alphabetically sorted
92 year_name = year_name_vector_param.at(0);
93 string_to_number<int>(val_int, year_name, dec);
95 ret_val = StoreCache::get_oldest_data(&date, device_id, PERIOD_YEARLY);
100 DataRange *DataReader::get_data_range() {
102 vector<string> y_list;
107 y_list = FileUtil::get_subdirectories(device_dir);
108 o_data = find_oldest_data(y_list);
109 if (o_data != NULL) {
110 n_data = find_latest_data(y_list);
111 if (n_data != NULL) {
112 ret_val = new DataRange(o_data);
113 ret_val->add(n_data);
121 EnumSummaryPeriod get_period_type(Date *start_date,
124 EnumSummaryPeriod ret_val;
126 ret_val = PERIOD_YEARLY;
127 diff = end_date->year - start_date->year;
129 ret_val = PERIOD_YEARLY;
132 diff = end_date->month - start_date->month;
134 ret_val = PERIOD_MONTHLY;
137 diff = end_date->day - start_date->day;
139 ret_val = PERIOD_DAILY;
142 diff = end_date->hour - start_date->hour;
144 ret_val = PERIOD_HOURLY;
147 diff = end_date->min - start_date->min;
149 ret_val = PERIOD_MINUTELY;
152 ret_val = PERIOD_SECONDLY;
161 DataRange *DataReader::get_summary(Date *date_param,
162 EnumSummaryCalculationType calc_type_param,
163 EnumSummaryPeriod period_type_param) {
168 //store = new StoreDay(device_id, date_param);
169 store = new StoreCache(device_id, date_param);
171 switch(calc_type_param) {
173 ret_val = store->get_sum(period_type_param);
176 ret_val = store->get_delta(period_type_param);
179 ret_val = store->get_max(period_type_param);
182 ret_val = store->get_min(period_type_param);
186 ret_val = store->get_mean(period_type_param);
189 if (ret_val != NULL) {
193 log_error("Could not read data log for device: %s\n", device_id.c_str());
197 log_error("Could not read data log for device: %s\n", device_id.c_str());
203 DataRange *DataReader::get_yearly_summary(Date *date,
204 EnumSummaryCalculationType calc_type_param) {
205 return get_summary(date, calc_type_param, PERIOD_YEARLY);
208 DataRange *DataReader::get_yearly_summary(Date *date) {
211 if (device_config == NULL) {
212 device_config = DeviceConfig::get_device_config(device_id);
213 summary_calc_type = device_config->get_summary_calculation_type();
215 ret_val = get_yearly_summary(date, summary_calc_type);
219 DataRange *DataReader::get_yearly_summary(Date *start_date,
226 date = start_date->clone();
227 while(date->before_or_equal_year(end_date)) {
228 data = get_yearly_summary(date);
230 if (ret_val == NULL) {
231 ret_val = new DataRange(data);
244 DataRange *DataReader::get_monthly_summary(Date *date,
245 EnumSummaryCalculationType calc_type_param) {
246 return get_summary(date, calc_type_param, PERIOD_MONTHLY);
249 DataRange *DataReader::get_monthly_summary(Date *date) {
252 if (device_config == NULL) {
253 device_config = DeviceConfig::get_device_config(device_id);
254 summary_calc_type = device_config->get_summary_calculation_type();
256 ret_val = get_monthly_summary(date, summary_calc_type);
260 DataRange *DataReader::get_monthly_summary(Date *start_date,
267 date = start_date->clone();
268 while(date->before_or_equal_month(end_date)) {
269 data = get_monthly_summary(date);
271 if (ret_val == NULL) {
272 ret_val = new DataRange(data);
286 * Get Daily summary from the latest date
288 DataRange *DataReader::get_daily_summary() {
289 if (device_config == NULL) {
290 device_config = DeviceConfig::get_device_config(device_id);
291 summary_calc_type = device_config->get_summary_calculation_type();
293 return get_daily_summary(summary_calc_type);
297 * Get Daily summary specified by the calc_type from the latest date.
299 DataRange *DataReader::get_daily_summary(EnumSummaryCalculationType calc_type_param) {
303 data = get_latest_data();
304 date = data->get_date();
305 return get_daily_summary(&date, calc_type_param);
308 DataRange *DataReader::get_daily_summary(Date *date,
309 EnumSummaryCalculationType calc_type_param) {
310 return get_summary(date, calc_type_param, PERIOD_DAILY);
313 DataRange *DataReader::get_daily_summary(Date *date) {
316 if (device_config == NULL) {
317 device_config = DeviceConfig::get_device_config(device_id);
318 summary_calc_type = device_config->get_summary_calculation_type();
320 ret_val = get_daily_summary(date, summary_calc_type);
324 DataRange *DataReader::get_daily_summary(Date *start_date,
331 date = start_date->clone();
332 while(date->before_or_equal_day(end_date)) {
333 data = get_daily_summary(date);
335 if (ret_val == NULL) {
336 ret_val = new DataRange(data);
349 DataRange *DataReader::get_hourly_summary(Date *date,
350 EnumSummaryCalculationType calc_type_param) {
351 return get_summary(date, calc_type_param, PERIOD_HOURLY);
354 DataRange *DataReader::get_hourly_summary(Date *date) {
357 if (device_config == NULL) {
358 device_config = DeviceConfig::get_device_config(device_id);
359 summary_calc_type = device_config->get_summary_calculation_type();
361 ret_val = get_hourly_summary(date, summary_calc_type);
365 DataRange *DataReader::get_hourly_summary(Date *start_date,
375 date = start_date->clone();
376 while(date->before_or_equal_hour(end_date)) {
377 dta_lst = get_hourly_summary(date);
378 cnt = dta_lst->get_count();
379 for(ii = 0; ii < cnt; ii++) {
380 data = dta_lst->get(ii);
382 if (ret_val == NULL) {
383 ret_val = new DataRange(data);
397 DataRange *DataReader::get_data(Date *start_date,
400 EnumSummaryPeriod period;
403 period = get_period_type(start_date, end_date);
406 log_debug("get yearly summary: %s - %s\n", start_date->to_string().c_str(), end_date->to_string().c_str());
407 ret_val = get_yearly_summary(start_date, end_date);
410 log_debug("get monthly summary\n");
411 ret_val = get_monthly_summary(start_date, end_date);
414 log_debug("get daily summary\n");
415 ret_val = get_daily_summary(start_date, end_date);
418 log_debug("get hourly summary\n");
419 ret_val = get_hourly_summary(start_date, end_date);
421 case PERIOD_MINUTELY:
422 log_debug("get minute summary data\n");
424 case PERIOD_SECONDLY:
426 log_debug("get second summary data\n");
432 string DataReader::get_device_id() {
437 * Read device type from the device specific config file
439 string DataReader::get_device_type() {
442 if (device_config == NULL) {
443 device_config = DeviceConfig::get_device_config(device_id);
444 ret_val = device_config->get_cfg_value(DEVICE_CONFIG_VALUE_KEY__TYPE);