combined_equipment_energy_input_category.main()   F
last analyzed

Complexity

Conditions 14

Size

Total Lines 70
Code Lines 46

Duplication

Lines 70
Ratio 100 %

Importance

Changes 0
Metric Value
eloc 46
dl 70
loc 70
rs 3.6
c 0
b 0
f 0
cc 14
nop 1

How to fix   Long Method    Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

Complexity

Complex classes like combined_equipment_energy_input_category.main() often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

1
import time
2
from datetime import datetime, timedelta
3
from decimal import Decimal
4
import mysql.connector
5
from multiprocessing import Pool
6
import random
7
import config
8
9
10
########################################################################################################################
11
# PROCEDURES
12
# Step 1: get all combined equipments
13
# Step 2: Create multiprocessing pool to call worker in parallel
14
########################################################################################################################
15
16
17 View Code Duplication
def main(logger):
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18
19
    while True:
20
        # the outermost while loop
21
        ################################################################################################################
22
        # Step 1: get all combined equipments
23
        ################################################################################################################
24
        cnx_system_db = None
25
        cursor_system_db = None
26
        try:
27
            cnx_system_db = mysql.connector.connect(**config.myems_system_db)
28
            cursor_system_db = cnx_system_db.cursor()
29
        except Exception as e:
30
            logger.error("Error in step 1.1 of combined_equipment_energy_input_category.main " + str(e))
31
            if cursor_system_db:
32
                cursor_system_db.close()
33
            if cnx_system_db:
34
                cnx_system_db.close()
35
            # sleep and continue the outer loop to reconnect the database
36
            time.sleep(60)
37
            continue
38
        print("Connected to MyEMS System Database")
39
40
        try:
41
            cursor_system_db.execute(" SELECT id, name "
42
                                     " FROM tbl_combined_equipments "
43
                                     " ORDER BY id ")
44
            rows_combined_equipments = cursor_system_db.fetchall()
45
46
            if rows_combined_equipments is None or len(rows_combined_equipments) == 0:
47
                print("There isn't any combined equipments ")
48
                # sleep and continue the outer loop to reconnect the database
49
                time.sleep(60)
50
                continue
51
52
            combined_equipment_list = list()
53
            for row in rows_combined_equipments:
54
                combined_equipment_list.append({"id": row[0], "name": row[1]})
55
56
        except Exception as e:
57
            logger.error("Error in step 1.2 of combined_equipment_energy_input_category.main " + str(e))
58
            # sleep and continue the outer loop to reconnect the database
59
            time.sleep(60)
60
            continue
61
        finally:
62
            if cursor_system_db:
63
                cursor_system_db.close()
64
            if cnx_system_db:
65
                cnx_system_db.close()
66
67
        print("Got all combined equipments in MyEMS System Database")
68
69
        # shuffle the combined equipment list for randomly calculating the meter hourly value
70
        random.shuffle(combined_equipment_list)
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71
72
        ################################################################################################################
73
        # Step 2: Create multiprocessing pool to call worker in parallel
74
        ################################################################################################################
75
        p = Pool(processes=config.pool_size)
76
        error_list = p.map(worker, combined_equipment_list)
77
        p.close()
78
        p.join()
79
80
        for error in error_list:
81
            if error is not None and len(error) > 0:
82
                logger.error(error)
83
84
        print("go to sleep 300 seconds...")
85
        time.sleep(300)
86
        print("wake from sleep, and continue to work...")
87
    # end of outer while
88
89
90
########################################################################################################################
91
# PROCEDURES:
92
#   Step 1: get all input meters associated with the combined equipment
93
#   Step 2: get all input virtual meters associated with the combined equipment
94
#   Step 3: get all input offline meters associated with the combined equipment
95
#   Step 4: get all equipments associated with the combined equipment
96
#   Step 5: determine start datetime and end datetime to aggregate
97
#   Step 6: for each meter in list, get energy input data from energy database
98
#   Step 7: for each virtual meter in list, get energy input data from energy database
99
#   Step 8: for each offline meter in list, get energy input data from energy database
100
#   Step 9: for each equipment in list, get energy input data from energy database
101
#   Step 10: determine common time slot to aggregate
102
#   Step 11: aggregate energy data in the common time slot by energy categories and hourly
103
#   Step 12: save energy data to energy database
104
#
105
# NOTE: returns None or the error string because that the logger object cannot be passed in as parameter
106
########################################################################################################################
107
108 View Code Duplication
def worker(combined_equipment):
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109
    ####################################################################################################################
110
    # Step 1: get all input meters associated with the combined equipment
111
    ####################################################################################################################
112
    print("Step 1: get all input meters associated with the combined equipment " + str(combined_equipment['name']))
113
114
    meter_list = list()
115
    cnx_system_db = None
116
    cursor_system_db = None
117
    try:
118
        cnx_system_db = mysql.connector.connect(**config.myems_system_db)
119
        cursor_system_db = cnx_system_db.cursor()
120
    except Exception as e:
121
        error_string = "Error in step 1.1 of combined_equipment_energy_input_category.worker " + str(e)
122
        if cursor_system_db:
123
            cursor_system_db.close()
124
        if cnx_system_db:
125
            cnx_system_db.close()
126
        print(error_string)
127
        return error_string
128
129
    try:
130
        cursor_system_db.execute(" SELECT m.id, m.name, m.energy_category_id "
131
                                 " FROM tbl_meters m, tbl_combined_equipments_meters em "
132
                                 " WHERE m.id = em.meter_id "
133
                                 "       AND m.is_counted = true "
134
                                 "       AND em.is_output = false "
135
                                 "       AND em.combined_equipment_id = %s ",
136
                                 (combined_equipment['id'],))
137
        rows_meters = cursor_system_db.fetchall()
138
139
        if rows_meters is not None and len(rows_meters) > 0:
140
            for row in rows_meters:
141
                meter_list.append({"id": row[0],
142
                                   "name": row[1],
143
                                   "energy_category_id": row[2]})
144
145
    except Exception as e:
146
        error_string = "Error in step 1.2 of combined_equipment_energy_input_category.worker " + str(e)
147
        if cursor_system_db:
148
            cursor_system_db.close()
149
        if cnx_system_db:
150
            cnx_system_db.close()
151
        print(error_string)
152
        return error_string
153
154
    ####################################################################################################################
155
    # Step 2: get all input virtual meters associated with the combined equipment
156
    ####################################################################################################################
157
    print("Step 2: get all input virtual meters associated with the combined equipment")
158
    virtual_meter_list = list()
159
160
    try:
161
        cursor_system_db.execute(" SELECT m.id, m.name, m.energy_category_id "
162
                                 " FROM tbl_virtual_meters m, tbl_combined_equipments_virtual_meters em "
163
                                 " WHERE m.id = em.virtual_meter_id "
164
                                 "       AND m.is_counted = true "
165
                                 "       AND em.is_output = false "
166
                                 "       AND em.combined_equipment_id = %s ",
167
                                 (combined_equipment['id'],))
168
        rows_virtual_meters = cursor_system_db.fetchall()
169
170
        if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
171
            for row in rows_virtual_meters:
172
                virtual_meter_list.append({"id": row[0],
173
                                           "name": row[1],
174
                                           "energy_category_id": row[2]})
175
176
    except Exception as e:
177
        error_string = "Error in step 2.1 of combined_equipment_energy_input_category.worker " + str(e)
178
        if cursor_system_db:
179
            cursor_system_db.close()
180
        if cnx_system_db:
181
            cnx_system_db.close()
182
        print(error_string)
183
        return error_string
184
185
    ####################################################################################################################
186
    # Step 3: get all input offline meters associated with the combined equipment
187
    ####################################################################################################################
188
    print("Step 3: get all input offline meters associated with the combined equipment")
189
190
    offline_meter_list = list()
191
192
    try:
193
        cursor_system_db.execute(" SELECT m.id, m.name, m.energy_category_id "
194
                                 " FROM tbl_offline_meters m, tbl_combined_equipments_offline_meters em "
195
                                 " WHERE m.id = em.offline_meter_id "
196
                                 "       AND m.is_counted = true "
197
                                 "       AND em.is_output = false "
198
                                 "       AND em.combined_equipment_id = %s ",
199
                                 (combined_equipment['id'],))
200
        rows_offline_meters = cursor_system_db.fetchall()
201
202
        if rows_offline_meters is not None and len(rows_offline_meters) > 0:
203
            for row in rows_offline_meters:
204
                offline_meter_list.append({"id": row[0],
205
                                           "name": row[1],
206
                                           "energy_category_id": row[2]})
207
208
    except Exception as e:
209
        error_string = "Error in step 3.1 of combined_equipment_energy_input_category.worker " + str(e)
210
        print(error_string)
211
        return error_string
212
    finally:
213
        if cursor_system_db:
214
            cursor_system_db.close()
215
        if cnx_system_db:
216
            cnx_system_db.close()
217
218
    ####################################################################################################################
219
    # Step 4: get all equipments associated with the combined equipment
220
    ####################################################################################################################
221
    print("Step 4: get all equipments associated with the combined equipment")
222
223
    equipment_list = list()
224
225
    try:
226
        cursor_system_db.execute(" SELECT e.id, e.name "
227
                                 " FROM tbl_equipments e, tbl_combined_equipments_equipments ce "
228
                                 " WHERE e.id = ce.equipment_id "
229
                                 "       AND e.is_input_counted = true "
230
                                 "       AND ce.combined_equipment_id = %s ",
231
                                 (combined_equipment['id'],))
232
        rows_equipments = cursor_system_db.fetchall()
233
234
        if rows_equipments is not None and len(rows_equipments) > 0:
235
            for row in rows_equipments:
236
                equipment_list.append({"id": row[0],
237
                                       "name": row[1]})
238
239
    except Exception as e:
240
        error_string = "Error in step 4 of combined_equipment_energy_input_category.worker " + str(e)
241
        print(error_string)
242
        return error_string
243
    finally:
244
        if cursor_system_db:
245
            cursor_system_db.close()
246
        if cnx_system_db:
247
            cnx_system_db.close()
248
249
    ####################################################################################################################
250
    # stop to the next combined equipment if this combined equipment is empty
251
    ####################################################################################################################
252
    if (meter_list is None or len(meter_list) == 0) and \
253
            (virtual_meter_list is None or len(virtual_meter_list) == 0) and \
254
            (offline_meter_list is None or len(offline_meter_list) == 0) and \
255
            (equipment_list is None or len(equipment_list) == 0):
256
        print("This is an empty combined equipment ")
257
        return None
258
259
    ####################################################################################################################
260
    # Step 5: determine start datetime and end datetime to aggregate
261
    ####################################################################################################################
262
    print("Step 5: determine start datetime and end datetime to aggregate")
263
    cnx_energy_db = None
264
    cursor_energy_db = None
265
    try:
266
        cnx_energy_db = mysql.connector.connect(**config.myems_energy_db)
267
        cursor_energy_db = cnx_energy_db.cursor()
268
    except Exception as e:
269
        error_string = "Error in step 5.1 of combined_equipment_energy_input_category.worker " + str(e)
270
        if cursor_energy_db:
271
            cursor_energy_db.close()
272
        if cnx_energy_db:
273
            cnx_energy_db.close()
274
        print(error_string)
275
        return error_string
276
277
    try:
278
        query = (" SELECT MAX(start_datetime_utc) "
279
                 " FROM tbl_combined_equipment_input_category_hourly "
280
                 " WHERE combined_equipment_id = %s ")
281
        cursor_energy_db.execute(query, (combined_equipment['id'],))
282
        row_datetime = cursor_energy_db.fetchone()
283
        start_datetime_utc = datetime.strptime(config.start_datetime_utc, '%Y-%m-%d %H:%M:%S')
284
        start_datetime_utc = start_datetime_utc.replace(minute=0, second=0, microsecond=0, tzinfo=None)
285
286
        if row_datetime is not None and len(row_datetime) > 0 and isinstance(row_datetime[0], datetime):
287
            # replace second and microsecond with 0
288
            # note: do not replace minute in case of calculating in half hourly
289
            start_datetime_utc = row_datetime[0].replace(second=0, microsecond=0, tzinfo=None)
290
            # start from the next time slot
291
            start_datetime_utc += timedelta(minutes=config.minutes_to_count)
292
293
        end_datetime_utc = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=None)
294
295
        print("start_datetime_utc: " + start_datetime_utc.isoformat()[0:19]
296
              + "end_datetime_utc: " + end_datetime_utc.isoformat()[0:19])
297
298
    except Exception as e:
299
        error_string = "Error in step 5.2 of combined_equipment_energy_input_category.worker " + str(e)
300
        if cursor_energy_db:
301
            cursor_energy_db.close()
302
        if cnx_energy_db:
303
            cnx_energy_db.close()
304
        print(error_string)
305
        return error_string
306
307
    ####################################################################################################################
308
    # Step 6: for each meter in list, get energy input data from energy database
309
    ####################################################################################################################
310
    energy_meter_hourly = dict()
311
    try:
312
        if meter_list is not None and len(meter_list) > 0:
313
            for meter in meter_list:
314
                meter_id = str(meter['id'])
315
316
                query = (" SELECT start_datetime_utc, actual_value "
317
                         " FROM tbl_meter_hourly "
318
                         " WHERE meter_id = %s "
319
                         "       AND start_datetime_utc >= %s "
320
                         "       AND start_datetime_utc < %s "
321
                         " ORDER BY start_datetime_utc ")
322
                cursor_energy_db.execute(query, (meter_id, start_datetime_utc, end_datetime_utc,))
323
                rows_energy_values = cursor_energy_db.fetchall()
324
                if rows_energy_values is None or len(rows_energy_values) == 0:
325
                    energy_meter_hourly[meter_id] = None
326
                else:
327
                    energy_meter_hourly[meter_id] = dict()
328
                    for row_energy_value in rows_energy_values:
329
                        energy_meter_hourly[meter_id][row_energy_value[0]] = row_energy_value[1]
330
    except Exception as e:
331
        error_string = "Error in step 6.1 of combined_equipment_energy_input_category.worker " + str(e)
332
        if cursor_energy_db:
333
            cursor_energy_db.close()
334
        if cnx_energy_db:
335
            cnx_energy_db.close()
336
        print(error_string)
337
        return error_string
338
339
    ####################################################################################################################
340
    # Step 7: for each virtual meter in list, get energy input data from energy database
341
    ####################################################################################################################
342
    energy_virtual_meter_hourly = dict()
343
    if virtual_meter_list is not None and len(virtual_meter_list) > 0:
344
        try:
345
            for virtual_meter in virtual_meter_list:
346
                virtual_meter_id = str(virtual_meter['id'])
347
348
                query = (" SELECT start_datetime_utc, actual_value "
349
                         " FROM tbl_virtual_meter_hourly "
350
                         " WHERE virtual_meter_id = %s "
351
                         "       AND start_datetime_utc >= %s "
352
                         "       AND start_datetime_utc < %s "
353
                         " ORDER BY start_datetime_utc ")
354
                cursor_energy_db.execute(query, (virtual_meter_id, start_datetime_utc, end_datetime_utc,))
355
                rows_energy_values = cursor_energy_db.fetchall()
356
                if rows_energy_values is None or len(rows_energy_values) == 0:
357
                    energy_virtual_meter_hourly[virtual_meter_id] = None
358
                else:
359
                    energy_virtual_meter_hourly[virtual_meter_id] = dict()
360
                    for row_energy_value in rows_energy_values:
361
                        energy_virtual_meter_hourly[virtual_meter_id][row_energy_value[0]] = row_energy_value[1]
362
        except Exception as e:
363
            error_string = "Error in step 7.1 of combined_equipment_energy_input_category.worker " + str(e)
364
            if cursor_energy_db:
365
                cursor_energy_db.close()
366
            if cnx_energy_db:
367
                cnx_energy_db.close()
368
            print(error_string)
369
            return error_string
370
371
    ####################################################################################################################
372
    # Step 8: for each offline meter in list, get energy input data from energy database
373
    ####################################################################################################################
374
    energy_offline_meter_hourly = dict()
375
    if offline_meter_list is not None and len(offline_meter_list) > 0:
376
        try:
377
            for offline_meter in offline_meter_list:
378
                offline_meter_id = str(offline_meter['id'])
379
380
                query = (" SELECT start_datetime_utc, actual_value "
381
                         " FROM tbl_offline_meter_hourly "
382
                         " WHERE offline_meter_id = %s "
383
                         "       AND start_datetime_utc >= %s "
384
                         "       AND start_datetime_utc < %s "
385
                         " ORDER BY start_datetime_utc ")
386
                cursor_energy_db.execute(query, (offline_meter_id, start_datetime_utc, end_datetime_utc,))
387
                rows_energy_values = cursor_energy_db.fetchall()
388
                if rows_energy_values is None or len(rows_energy_values) == 0:
389
                    energy_offline_meter_hourly[offline_meter_id] = None
390
                else:
391
                    energy_offline_meter_hourly[offline_meter_id] = dict()
392
                    for row_energy_value in rows_energy_values:
393
                        energy_offline_meter_hourly[offline_meter_id][row_energy_value[0]] = row_energy_value[1]
394
395
        except Exception as e:
396
            error_string = "Error in step 8.1 of combined_equipment_energy_input_category.worker " + str(e)
397
            if cursor_energy_db:
398
                cursor_energy_db.close()
399
            if cnx_energy_db:
400
                cnx_energy_db.close()
401
            print(error_string)
402
            return error_string
403
404
    ####################################################################################################################
405
    # Step 9: for each equipment in list, get energy input data from energy database
406
    ####################################################################################################################
407
    energy_equipment_hourly = dict()
408
    if equipment_list is not None and len(equipment_list) > 0:
409
        try:
410
            for equipment in equipment_list:
411
                equipment_id = str(equipment['id'])
412
                query = (" SELECT start_datetime_utc, energy_category_id, actual_value "
413
                         " FROM tbl_equipment_input_category_hourly "
414
                         " WHERE equipment_id = %s "
415
                         "       AND start_datetime_utc >= %s "
416
                         "       AND start_datetime_utc < %s "
417
                         " ORDER BY start_datetime_utc ")
418
                cursor_energy_db.execute(query, (equipment_id, start_datetime_utc, end_datetime_utc,))
419
                rows_energy_values = cursor_energy_db.fetchall()
420
                if rows_energy_values is None or len(rows_energy_values) == 0:
421
                    energy_equipment_hourly[equipment_id] = None
422
                else:
423
                    energy_equipment_hourly[equipment_id] = dict()
424
                    for row_value in rows_energy_values:
425
                        current_datetime_utc = row_value[0]
426
                        if current_datetime_utc not in energy_equipment_hourly[equipment_id]:
427
                            energy_equipment_hourly[equipment_id][current_datetime_utc] = dict()
428
                        energy_category_id = row_value[1]
429
                        actual_value = row_value[2]
430
                        energy_equipment_hourly[equipment_id][current_datetime_utc][energy_category_id] = \
431
                            actual_value
432
        except Exception as e:
433
            error_string = "Error in step 9 of combined_equipment_energy_input_category.worker " + str(e)
434
            if cursor_energy_db:
435
                cursor_energy_db.close()
436
            if cnx_energy_db:
437
                cnx_energy_db.close()
438
            print(error_string)
439
            return error_string
440
441
    ####################################################################################################################
442
    # Step 10: determine common time slot to aggregate
443
    ####################################################################################################################
444
445
    common_start_datetime_utc = start_datetime_utc
446
    common_end_datetime_utc = end_datetime_utc
447
448
    print("Getting common time slot of energy values for all meters")
449
    if energy_meter_hourly is not None and len(energy_meter_hourly) > 0:
450
        for meter_id, energy_hourly in energy_meter_hourly.items():
451
            if energy_hourly is None or len(energy_hourly) == 0:
452
                common_start_datetime_utc = None
453
                common_end_datetime_utc = None
454
                break
455
            else:
456
                if common_start_datetime_utc < min(energy_hourly.keys()):
457
                    common_start_datetime_utc = min(energy_hourly.keys())
458
                if common_end_datetime_utc > max(energy_hourly.keys()):
459
                    common_end_datetime_utc = max(energy_hourly.keys())
460
461
    print("Getting common time slot of energy values for all virtual meters")
462
    if common_start_datetime_utc is not None and common_start_datetime_utc is not None:
463
        if energy_virtual_meter_hourly is not None and len(energy_virtual_meter_hourly) > 0:
464
            for meter_id, energy_hourly in energy_virtual_meter_hourly.items():
465
                if energy_hourly is None or len(energy_hourly) == 0:
466
                    common_start_datetime_utc = None
467
                    common_end_datetime_utc = None
468
                    break
469
                else:
470
                    if common_start_datetime_utc < min(energy_hourly.keys()):
471
                        common_start_datetime_utc = min(energy_hourly.keys())
472
                    if common_end_datetime_utc > max(energy_hourly.keys()):
473
                        common_end_datetime_utc = max(energy_hourly.keys())
474
475
    print("Getting common time slot of energy values for all offline meters")
476
    if common_start_datetime_utc is not None and common_start_datetime_utc is not None:
477
        if energy_offline_meter_hourly is not None and len(energy_offline_meter_hourly) > 0:
478
            for meter_id, energy_hourly in energy_offline_meter_hourly.items():
479
                if energy_hourly is None or len(energy_hourly) == 0:
480
                    common_start_datetime_utc = None
481
                    common_end_datetime_utc = None
482
                    break
483
                else:
484
                    if common_start_datetime_utc < min(energy_hourly.keys()):
485
                        common_start_datetime_utc = min(energy_hourly.keys())
486
                    if common_end_datetime_utc > max(energy_hourly.keys()):
487
                        common_end_datetime_utc = max(energy_hourly.keys())
488
489
    print("Getting common time slot of energy values for all equipments...")
490
    if common_start_datetime_utc is not None and common_start_datetime_utc is not None:
491
        if energy_equipment_hourly is not None and len(energy_equipment_hourly) > 0:
492
            for equipment_id, energy_hourly in energy_equipment_hourly.items():
493
                if energy_hourly is None or len(energy_hourly) == 0:
494
                    common_start_datetime_utc = None
495
                    common_end_datetime_utc = None
496
                    break
497
                else:
498
                    if common_start_datetime_utc < min(energy_hourly.keys()):
499
                        common_start_datetime_utc = min(energy_hourly.keys())
500
                    if common_end_datetime_utc > max(energy_hourly.keys()):
501
                        common_end_datetime_utc = max(energy_hourly.keys())
502
503
    if (energy_meter_hourly is None or len(energy_meter_hourly) == 0) and \
504
            (energy_virtual_meter_hourly is None or len(energy_virtual_meter_hourly) == 0) and \
505
            (energy_offline_meter_hourly is None or len(energy_offline_meter_hourly) == 0) and \
506
            (energy_equipment_hourly is None or len(energy_equipment_hourly) == 0):
507
        # There isn't any energy data
508
        print("There isn't any energy data")
509
        # continue the for combined equipment loop to the next combined equipment
510
        print("continue the for combined equipment loop to the next combined equipment")
511
        if cursor_energy_db:
512
            cursor_energy_db.close()
513
        if cnx_energy_db:
514
            cnx_energy_db.close()
515
        return None
516
517
    print("common_start_datetime_utc: " + str(common_start_datetime_utc))
518
    print("common_end_datetime_utc: " + str(common_end_datetime_utc))
519
520
    ####################################################################################################################
521
    # Step 11: aggregate energy data in the common time slot by energy categories and hourly
522
    ####################################################################################################################
523
524
    print("Step 11: aggregate energy data in the common time slot by energy categories and hourly")
525
    aggregated_values = list()
526
    try:
527
        current_datetime_utc = common_start_datetime_utc
528
        while common_start_datetime_utc is not None \
529
                and common_end_datetime_utc is not None \
530
                and current_datetime_utc <= common_end_datetime_utc:
531
            aggregated_value = dict()
532
            aggregated_value['start_datetime_utc'] = current_datetime_utc
533
            aggregated_value['meta_data'] = dict()
534
535
            if meter_list is not None and len(meter_list) > 0:
536
                for meter in meter_list:
537
                    meter_id = str(meter['id'])
538
                    energy_category_id = meter['energy_category_id']
539
                    actual_value = energy_meter_hourly[meter_id].get(current_datetime_utc, Decimal(0.0))
540
                    aggregated_value['meta_data'][energy_category_id] = \
541
                        aggregated_value['meta_data'].get(energy_category_id, Decimal(0.0)) + actual_value
542
543
            if virtual_meter_list is not None and len(virtual_meter_list) > 0:
544
                for virtual_meter in virtual_meter_list:
545
                    virtual_meter_id = str(virtual_meter['id'])
546
                    energy_category_id = virtual_meter['energy_category_id']
547
                    actual_value = energy_virtual_meter_hourly[virtual_meter_id].get(current_datetime_utc, Decimal(0.0))
548
                    aggregated_value['meta_data'][energy_category_id] = \
549
                        aggregated_value['meta_data'].get(energy_category_id, Decimal(0.0)) + actual_value
550
551
            if offline_meter_list is not None and len(offline_meter_list) > 0:
552
                for offline_meter in offline_meter_list:
553
                    offline_meter_id = str(offline_meter['id'])
554
                    energy_category_id = offline_meter['energy_category_id']
555
                    actual_value = energy_offline_meter_hourly[offline_meter_id].get(current_datetime_utc, Decimal(0.0))
556
                    aggregated_value['meta_data'][energy_category_id] = \
557
                        aggregated_value['meta_data'].get(energy_category_id, Decimal(0.0)) + actual_value
558
559
            if equipment_list is not None and len(equipment_list) > 0:
560
                for equipment in equipment_list:
561
                    equipment_id = str(equipment['id'])
562
                    meta_data_dict = energy_equipment_hourly[equipment_id].get(current_datetime_utc, None)
563
                    if meta_data_dict is not None and len(meta_data_dict) > 0:
564
                        for energy_category_id, actual_value in meta_data_dict.items():
565
                            aggregated_value['meta_data'][energy_category_id] = \
566
                                aggregated_value['meta_data'].get(energy_category_id, Decimal(0.0)) + actual_value
567
568
            aggregated_values.append(aggregated_value)
569
570
            current_datetime_utc += timedelta(minutes=config.minutes_to_count)
571
572
    except Exception as e:
573
        error_string = "Error in step 11 of combined_equipment_energy_input_category.worker " + str(e)
574
        if cursor_energy_db:
575
            cursor_energy_db.close()
576
        if cnx_energy_db:
577
            cnx_energy_db.close()
578
        print(error_string)
579
        return error_string
580
581
    ####################################################################################################################
582
    # Step 12: save energy data to energy database
583
    ####################################################################################################################
584
    print("Step 12: save energy data to energy database")
585
586
    if len(aggregated_values) > 0:
587
        try:
588
            add_values = (" INSERT INTO tbl_combined_equipment_input_category_hourly "
589
                          "             (combined_equipment_id, "
590
                          "              energy_category_id, "
591
                          "              start_datetime_utc, "
592
                          "              actual_value) "
593
                          " VALUES  ")
594
595
            for aggregated_value in aggregated_values:
596
                for energy_category_id, actual_value in aggregated_value['meta_data'].items():
597
                    add_values += " (" + str(combined_equipment['id']) + ","
598
                    add_values += " " + str(energy_category_id) + ","
599
                    add_values += "'" + aggregated_value['start_datetime_utc'].isoformat()[0:19] + "',"
600
                    add_values += str(actual_value) + "), "
601
            print("add_values:" + add_values)
602
            # trim ", " at the end of string and then execute
603
            cursor_energy_db.execute(add_values[:-2])
604
            cnx_energy_db.commit()
605
606
        except Exception as e:
607
            error_string = "Error in step 12.1 of combined_equipment_energy_input_category.worker " + str(e)
608
            print(error_string)
609
            return error_string
610
        finally:
611
            if cursor_energy_db:
612
                cursor_energy_db.close()
613
            if cnx_energy_db:
614
                cnx_energy_db.close()
615
    else:
616
        if cursor_energy_db:
617
            cursor_energy_db.close()
618
        if cnx_energy_db:
619
            cnx_energy_db.close()
620