sensorconfig.cpp 22.3 KB
Newer Older
Axel Auweter's avatar
Axel Auweter committed
1
2
3
4
5
6
7
8
9
/*
 * sensorconfig.cpp
 *
 *  Created on: May 19, 2015
 *      Author: Axel Auweter
 */

#include <cstring>
#include <iostream>
Axel Auweter's avatar
Axel Auweter committed
10
#include <algorithm>
Axel Auweter's avatar
Axel Auweter committed
11
12
13
14
15

#include "cassandra.h"

#include "sensorconfig_internal.h"
#include "dcdbglobals.h"
Axel Auweter's avatar
Axel Auweter committed
16
#include "dcdbendian.h"
Axel Auweter's avatar
Axel Auweter committed
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45

/*
 * DCDBPublicSensor functions.
 */
DCDBPublicSensor::DCDBPublicSensor()
{
  name = "";
  pattern = "";
  scaling_factor = 1.0;
  unit = "";
}

DCDBPublicSensor::DCDBPublicSensor (const DCDBPublicSensor &copy)
{
  name = copy.name;
  pattern = copy.pattern;
  scaling_factor = copy.scaling_factor;
  unit = copy.unit;
}


/*
 * SensorConfig functions
 */
SCError SensorConfig::publishSensor(const char* publicName, const char* sensorPattern)
{
  return impl->publishSensor(publicName, sensorPattern);
}

46
SCError SensorConfig::getPublicSensorNames(std::list<std::string>& publicSensors)
Axel Auweter's avatar
Axel Auweter committed
47
{
48
49
50
51
52
53
54
55
56
57
58
  return impl->getPublicSensorNames(publicSensors);
}

SCError SensorConfig::getPublicSensorsVerbose(std::list<DCDBPublicSensor>& publicSensors)
{
  return impl->getPublicSensorsVerbose(publicSensors);
}

SCError SensorConfig::getPublicSensorByName(DCDBPublicSensor& sensor, const char* publicName)
{
  return impl->getPublicSensorByName(sensor, publicName);
Axel Auweter's avatar
Axel Auweter committed
59
60
}

Axel Auweter's avatar
Axel Auweter committed
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
SCError SensorConfig::getSensorPattern(std::string& pattern, std::string publicName)
{
  return impl->getSensorPattern(pattern, publicName);
}

SCError SensorConfig::getSensorListForPattern(std::list<SensorId>& sensorIds, std::string pattern)
{
  return impl->getSensorListForPattern(sensorIds, pattern);
}

SCError SensorConfig::getSensorListForPattern(std::list<SensorId>& sensorIds, std::string pattern, DCDBTimeStamp start, DCDBTimeStamp end)
{
  return impl->getSensorListForPattern(sensorIds, pattern, start, end);
}

76
77
78
79
80
81
82
83
84
85
86
87
88
89
SCError SensorConfig::setSensorScalingFactor(std::string publicName, double scalingFactor) {
  return impl->setSensorScalingFactor(publicName, scalingFactor);
}

SCError SensorConfig::setSensorUnit(std::string publicName, std::string unit)
{
  return impl->setSensorUnit(publicName, unit);
}

SCError SensorConfig::setSensorIntegrable(std::string publicName, bool integrable)
{
  return impl->setSensorIntegrable(publicName, integrable);
}

Axel Auweter's avatar
Axel Auweter committed
90

Axel Auweter's avatar
Axel Auweter committed
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
SensorConfig::SensorConfig(DCDBConnection* conn)
{
  /* Allocate impl object */
  impl = new SensorConfigImpl(conn);
}

SensorConfig::~SensorConfig()
{
  if (impl) {
      delete impl;
  }
}

/*
 * SensorConfigImpl protected functions
 */

/*
 * Validate the pattern for a Sensor to be published
 * Patterns may only consist of hex numbers and forward slashes
 * and at most one wildcard character (*). Also, the total number of
 * bits may not exceed 128.
 */
bool SensorConfigImpl::validateSensorPattern(const char* sensorPattern)
{
  unsigned int wildcards, bits;

  /* 128 bits in HEX is at most 32 characters. Considering forward-slash separators, 64 is a reasonable maxmimum string length */
  if (strlen(sensorPattern) > 64) {
      return false;
  }

  /* Iterate through the string and validate/count the characters */
  bits = 0;
  wildcards = 0;
  for (unsigned int c = 0; c < strlen(sensorPattern); c++) {
      switch (sensorPattern[c]) {

      /* Regular HEX digit */
      case '0':
      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      case '6':
      case '7':
      case '8':
      case '9':
      case 'a':
      case 'A':
      case 'b':
      case 'B':
      case 'c':
      case 'C':
      case 'd':
      case 'D':
      case 'e':
      case 'E':
      case 'f':
      case 'F':
        bits += 4;
        break;

      /* Wildcard */
      case '*':
        wildcards++;
        break;

      /* Forward slash */
      case '/':
        break;

      /* Everything else is not allowed */
      default:
        return false;
      }
  }

  /* More than one wildcard is not allowed */
  if (wildcards > 1)
    return false;

  /* In case of a wildcard, there should be some bits left for the wildcard to fill in */
  if (wildcards == 1 && bits >= 128)
    return false;

  /* Looks good */
  return true;
}


/*
 * SensorConfigImpl public functions
 */
Axel Auweter's avatar
Axel Auweter committed
186
SCError SensorConfigImpl::publishSensor(std::string publicName, std::string sensorPattern)
Axel Auweter's avatar
Axel Auweter committed
187
188
{
  /* Check if the pattern matches the requirements */
Axel Auweter's avatar
Axel Auweter committed
189
  if (!validateSensorPattern(sensorPattern.c_str())) {
Axel Auweter's avatar
Axel Auweter committed
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
      return SC_INVALIDPATTERN;
  }

  /* Check if the session is valid */
  if (!session) {
      return SC_INVALIDSESSION;
  }

  /* Insert the entry */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "INSERT INTO " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " (name, pattern) VALUES (?,?);";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);
    cass_future_free(future);
    return SC_UNKNOWNERROR;
  } else {
    prepared = cass_future_get_prepared(future);
  }

  cass_future_free(future);

  statement = cass_prepared_bind(prepared);

Axel Auweter's avatar
Axel Auweter committed
221
222
  cass_statement_bind_string_by_name(statement, "name", publicName.c_str());
  cass_statement_bind_string_by_name(statement, "pattern", sensorPattern.c_str());
Axel Auweter's avatar
Axel Auweter committed
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);

    cass_prepared_free(prepared);
    cass_future_free(future);
    cass_statement_free(statement);

    return SC_UNKNOWNERROR;
  }

  cass_prepared_free(prepared);
  cass_future_free(future);
  cass_statement_free(statement);

  return SC_OK;
}

245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
SCError SensorConfigImpl::getPublicSensorNames(std::list<std::string>& publicSensors)
{
  /* Check if the session is valid */
  if (!session) {
      return SC_INVALIDSESSION;
  }

  /* Clear the list */
  publicSensors.clear();

  /* Fill the list with all public sensors */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const char* query = "SELECT name FROM " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " ;";

  statement = cass_statement_new(query, 0);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
     connection->printError(future);
     cass_future_free(future);
     cass_statement_free(statement);
     return SC_UNKNOWNERROR;
  } else {
      const CassResult* result = cass_future_get_result(future);
      CassIterator* iterator = cass_iterator_from_result(result);

      while (cass_iterator_next(iterator)) {
          const char* name;
          size_t      name_len;

          const CassRow* row = cass_iterator_get_row(iterator);

          if (cass_value_get_string(cass_row_get_column_by_name(row, "name"), &name, &name_len) != CASS_OK) {
              name = ""; name_len = 0;
          }

          publicSensors.push_back(std::string(name, name_len));
      }
      cass_result_free(result);
      cass_iterator_free(iterator);
  }

  cass_future_free(future);
  cass_statement_free(statement);
  return SC_OK;
}

SCError SensorConfigImpl::getPublicSensorsVerbose(std::list<DCDBPublicSensor>& publicSensors)
Axel Auweter's avatar
Axel Auweter committed
298
299
300
301
302
303
{
  /* Check if the session is valid */
  if (!session) {
      return SC_INVALIDSESSION;
  }

Axel Auweter's avatar
Axel Auweter committed
304
305
306
  /* Clear the list */
  publicSensors.clear();

Axel Auweter's avatar
Axel Auweter committed
307
308
309
310
  /* Fill the list with all public sensors */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
Axel Auweter's avatar
Axel Auweter committed
311
  const char* query = "SELECT * FROM " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " ;";
Axel Auweter's avatar
Axel Auweter committed
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335

  statement = cass_statement_new(query, 0);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
     connection->printError(future);
     cass_future_free(future);
     cass_statement_free(statement);
     return SC_UNKNOWNERROR;
  } else {
      const CassResult* result = cass_future_get_result(future);
      CassIterator* iterator = cass_iterator_from_result(result);

      while (cass_iterator_next(iterator)) {
          const char* name;
          size_t      name_len;
          const char* pattern;
          size_t      pattern_len;
          double      scaling_factor;
          const char* unit;
          size_t      unit_len;
336
          cass_bool_t integrable;
Axel Auweter's avatar
Axel Auweter committed
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
          DCDBPublicSensor sensor;

          const CassRow* row = cass_iterator_get_row(iterator);

          if (cass_value_get_string(cass_row_get_column_by_name(row, "name"), &name, &name_len) != CASS_OK) {
              name = ""; name_len = 0;
          }
          if (cass_value_get_string(cass_row_get_column_by_name(row, "pattern"), &pattern, &pattern_len) != CASS_OK) {
              pattern = ""; pattern_len = 0;
          }
          if (cass_value_get_double(cass_row_get_column_by_name(row, "scaling_factor"), &scaling_factor) != CASS_OK) {
              scaling_factor = 1.0;
          }
          if (cass_value_get_string(cass_row_get_column_by_name(row, "unit"), &unit, &unit_len) != CASS_OK) {
              unit = ""; unit_len = 0;
          }
353
354
355
          if (cass_value_get_bool(cass_row_get_column_by_name(row, "integrable"), &integrable) != CASS_OK) {
              integrable = cass_false;
          }
Axel Auweter's avatar
Axel Auweter committed
356
357
358
359
360

          sensor.name = std::string(name, name_len);
          sensor.pattern = std::string(pattern, pattern_len);
          sensor.scaling_factor = scaling_factor;
          sensor.unit = std::string(unit, unit_len);
361
          sensor.integrable = integrable == cass_true ? true: false;
Axel Auweter's avatar
Axel Auweter committed
362
363
364
365
366
367
368
369
370
371
372
373

          publicSensors.push_back(sensor);
      }
      cass_result_free(result);
      cass_iterator_free(iterator);
  }

  cass_future_free(future);
  cass_statement_free(statement);
  return SC_OK;
}

374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
SCError SensorConfigImpl::getPublicSensorByName(DCDBPublicSensor& sensor, const char* publicName)
{
  /* Check if the session is valid */
  if (!session) {
      return SC_INVALIDSESSION;
  }

  /* Fill the list with all public sensors */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "SELECT * FROM " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " WHERE name = ?;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
      cass_future_free(future);
      return SC_UNKNOWNERROR;
  } else {
      prepared = cass_future_get_prepared(future);
  }
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);
  cass_statement_bind_string_by_name(statement, "name", publicName);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
     connection->printError(future);
     cass_future_free(future);
     cass_statement_free(statement);
     return SC_UNKNOWNERROR;
  } else {
      const CassResult* result = cass_future_get_result(future);
      CassIterator* iterator = cass_iterator_from_result(result);

      if (cass_iterator_next(iterator)) {
          const char* name;
          size_t      name_len;
          const char* pattern;
          size_t      pattern_len;
          double      scaling_factor;
          const char* unit;
          size_t      unit_len;
          cass_bool_t integrable;

          const CassRow* row = cass_iterator_get_row(iterator);

          if (cass_value_get_string(cass_row_get_column_by_name(row, "name"), &name, &name_len) != CASS_OK) {
              name = ""; name_len = 0;
          }
          if (cass_value_get_string(cass_row_get_column_by_name(row, "pattern"), &pattern, &pattern_len) != CASS_OK) {
              pattern = ""; pattern_len = 0;
          }
          if (cass_value_get_double(cass_row_get_column_by_name(row, "scaling_factor"), &scaling_factor) != CASS_OK) {
              scaling_factor = 1.0;
          }
          if (cass_value_get_string(cass_row_get_column_by_name(row, "unit"), &unit, &unit_len) != CASS_OK) {
              unit = ""; unit_len = 0;
          }
          if (cass_value_get_bool(cass_row_get_column_by_name(row, "integrable"), &integrable) != CASS_OK) {
              integrable = cass_false;
          }

          sensor.name = std::string(name, name_len);
          sensor.pattern = std::string(pattern, pattern_len);
          sensor.scaling_factor = scaling_factor;
          sensor.unit = std::string(unit, unit_len);
          sensor.integrable = integrable == cass_true ? true: false;
      }
      else {
          cass_result_free(result);
          cass_iterator_free(iterator);
          cass_future_free(future);
          cass_statement_free(statement);

          return SC_UNKNOWNSENSOR;
      }
      cass_result_free(result);
      cass_iterator_free(iterator);
  }

  cass_future_free(future);
  cass_statement_free(statement);
  return SC_OK;
}

Axel Auweter's avatar
Axel Auweter committed
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
SCError SensorConfigImpl::getSensorPattern(std::string& pattern, std::string publicName)
{
  /* Check if the session is valid */
  if (!session) {
      return SC_INVALIDSESSION;
  }

  /* Read the Pattern string from the database */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "SELECT pattern FROM " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " WHERE name = ? ;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
488
489
      cass_future_free(future);
      return SC_UNKNOWNERROR;
Axel Auweter's avatar
Axel Auweter committed
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
  } else {
      prepared = cass_future_get_prepared(future);
  }
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);
  cass_statement_bind_string_by_name(statement, "name", publicName.c_str());

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
  } else {
      const CassResult* result = cass_future_get_result(future);
      CassIterator* iterator = cass_iterator_from_result(result);

      if (cass_iterator_next(iterator)) {
          const char* pattern_cstr;
          size_t      pattern_len;
          const CassRow* row = cass_iterator_get_row(iterator);
          cass_value_get_string(cass_row_get_column_by_name(row, "pattern"), &pattern_cstr, &pattern_len);
          pattern = std::string(pattern_cstr, pattern_len);
      }
      else {
          return SC_UNKNOWNSENSOR;
      }

      cass_result_free(result);
      cass_iterator_free(iterator);
  }

  cass_future_free(future);
  cass_statement_free(statement);
  cass_prepared_free(prepared);
  return SC_OK;
}

SCError SensorConfigImpl::getSensorListForPattern(std::list<SensorId>& sensorIds, std::string pattern)
{
  /* Tiny hack to call the long version of this function */
532
533
  DCDBTimeStamp start((uint64_t)0x0);
  DCDBTimeStamp end((uint64_t)0x260DD31906D70000);
Axel Auweter's avatar
Axel Auweter committed
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
  return getSensorListForPattern(sensorIds, pattern, start, end);
}

SCError SensorConfigImpl::getSensorListForPattern(std::list<SensorId>& sensorIds, std::string pattern, DCDBTimeStamp start, DCDBTimeStamp end)
{
  /* Clear the list of sensorIds */
  sensorIds.clear();

  /* Strip all slashes from publishedSensorName */
  pattern.erase(std::remove(pattern.begin(), pattern.end(), '/'), pattern.end());

  /* Calculate lower and upper boundaries for the expansion of the pattern */
  std::string low  = pattern;
  std::string high = pattern;
  if (pattern.find("*") != std::string::npos) {
      low.replace(pattern.find("*"), 1, 33-pattern.length(), '0');
      high.replace(pattern.find("*"), 1, 33-pattern.length(), 'F');
  }

  SensorId lowId, highId;
  if (!lowId.mqttTopicConvert(low)) {
      return SC_INVALIDPATTERN;
  }
  if (!highId.mqttTopicConvert(high)) {
      return SC_INVALIDPATTERN;
  }
  lowId.setRsvd(start.getWeekstamp());
  highId.setRsvd(end.getWeekstamp());

  low = lowId.serialize();
  high = highId.serialize();

//  std::cout << "Lower boundary for sensor scan: " << std::hex << std::setfill('0') << std::setw(16) << lowId.raw[0] << " " << std::hex << std::setfill('0') << std::setw(16) << lowId.raw[1] << std::endl;
//  std::cout << "Upper boundary for sensor scan: " << std::hex << std::setfill('0') << std::setw(16) << highId.raw[0] << " " << std::hex << std::setfill('0') << std::setw(16) << highId.raw[1] << std::endl;

  /* Query the database to see which raw sensors actually exist in the interval between low and high */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "SELECT DISTINCT sid FROM " KEYSPACE_NAME "." CF_SENSORDATA " WHERE TOKEN(sid) >= ? and TOKEN(sid) <= ?;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);
    return SC_UNKNOWNERROR;
  }

  prepared = cass_future_get_prepared(future);
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);

  cass_statement_bind_bytes(statement, 0, (const cass_byte_t*)(low.c_str()), 16);
  cass_statement_bind_bytes(statement, 1, (const cass_byte_t*)(high.c_str()), 16);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
      return SC_UNKNOWNERROR;
  }

  const CassResult* result = cass_future_get_result(future);
  cass_future_free(future);

  CassIterator* iterator = cass_iterator_from_result(result);
  while (cass_iterator_next(iterator)) {
      const CassRow* row = cass_iterator_get_row(iterator);
      const cass_byte_t* res;
      size_t       res_len;
      cass_value_get_bytes(cass_row_get_column_by_name(row, "sid"), &res, &res_len);

      uint64_t raw[2];
      raw[0] = Endian::BEToHost(((uint64_t*)res)[0]);
      raw[1] = Endian::BEToHost(((uint64_t*)res)[1]);

      SensorId sensor;
      sensor.setRaw(raw);

      /* Check if the sensorId matches the pattern and append to result */
      if (sensor.patternMatch(pattern)) {
621
622
623
624
          /* Only append if within the weekstamp window */
          if ((sensor.getRsvd() >= start.getWeekstamp()) && (sensor.getRsvd() <= end.getWeekstamp())) {
              sensorIds.push_back(sensor);
          }
Axel Auweter's avatar
Axel Auweter committed
625
626
627
628
629
630
631
632
633
634
      }
  }
  cass_result_free(result);
  cass_iterator_free(iterator);
  cass_statement_free(statement);
  cass_prepared_free(prepared);

  return SC_OK;
}

635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
SCError SensorConfigImpl::setSensorScalingFactor(std::string publicName, double scalingFactor)
{
  SCError error = SC_UNKNOWNERROR;

  /* Check the sensorconfig whether the given public sensor has the integrable flag set to true */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "UPDATE " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " SET scaling_factor = ? WHERE name = ? ;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);
    return SC_UNKNOWNERROR;
  }

  prepared = cass_future_get_prepared(future);
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);

  cass_statement_bind_double(statement, 0, scalingFactor);
  cass_statement_bind_string(statement, 1, publicName.c_str());

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
      error = SC_UNKNOWNERROR;
  }
  else {
      error = SC_OK;
  }

  cass_statement_free(statement);
  cass_prepared_free(prepared);

  return error;
}

SCError SensorConfigImpl::setSensorUnit(std::string publicName, std::string unit)
{
  SCError error = SC_UNKNOWNERROR;

  /* Check the sensorconfig whether the given public sensor has the integrable flag set to true */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "UPDATE " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " SET unit = ? WHERE name = ? ;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);
    return SC_UNKNOWNERROR;
  }

  prepared = cass_future_get_prepared(future);
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);

  cass_statement_bind_string(statement, 0, unit.c_str());
  cass_statement_bind_string(statement, 1, publicName.c_str());

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
      error = SC_UNKNOWNERROR;
  }
  else {
      error = SC_OK;
  }

  cass_statement_free(statement);
  cass_prepared_free(prepared);

  return error;
}

SCError SensorConfigImpl::setSensorIntegrable(std::string publicName, bool integrable)
{
  SCError error = SC_UNKNOWNERROR;

  /* Check the sensorconfig whether the given public sensor has the integrable flag set to true */
  CassError rc = CASS_OK;
  CassStatement* statement = nullptr;
  CassFuture* future = nullptr;
  const CassPrepared* prepared = nullptr;
  const char* query = "UPDATE " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " SET integrable = ? WHERE name = ? ;";

  future = cass_session_prepare(session, query);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    connection->printError(future);
    return SC_UNKNOWNERROR;
  }

  prepared = cass_future_get_prepared(future);
  cass_future_free(future);

  statement = cass_prepared_bind(prepared);

  cass_statement_bind_bool(statement, 0, integrable == true ? cass_true : cass_false);
  cass_statement_bind_string(statement, 1, publicName.c_str());

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
      connection->printError(future);
      error = SC_UNKNOWNERROR;
  }
  else {
      error = SC_OK;
  }

  cass_statement_free(statement);
  cass_prepared_free(prepared);

  return error;
}
Axel Auweter's avatar
Axel Auweter committed
772

Axel Auweter's avatar
Axel Auweter committed
773
774
775
776
777
778
779
780
781
782
783
SensorConfigImpl::SensorConfigImpl(DCDBConnection* conn)
{
  connection = conn;
  session = connection->getSessionHandle();
}

SensorConfigImpl::~SensorConfigImpl()
{
  connection = nullptr;
  session = nullptr;
}