2.12.2021, 9:00 - 11:00: Due to updates GitLab may be unavailable for some minutes between 09:00 and 11:00.

sensorconfig.cpp 65.8 KB
Newer Older
1
2
//================================================================================
// Name        : sensorconfig.cpp
3
// Author      : Axel Auweter, Daniele Tafani
Micha Müller's avatar
Micha Müller committed
4
// Contact     : info@dcdb.it
5
// Copyright   : Leibniz Supercomputing Centre
Michael Ott's avatar
Michael Ott committed
6
// Description : C++ API implementation for configuring libdcdb public sensors.
7
8
9
10
//================================================================================

//================================================================================
// This file is part of DCDB (DataCenter DataBase)
11
// Copyright (C) 2011-2019 Leibniz Supercomputing Centre
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//================================================================================
Axel Auweter's avatar
Axel Auweter committed
27
28
29

#include <cstring>
#include <iostream>
Axel Auweter's avatar
Axel Auweter committed
30
#include <algorithm>
31
32
33
#include <string>
#include <list>
#include <unordered_set>
34
#include <utility>
Axel Auweter's avatar
Axel Auweter committed
35
36

#include "cassandra.h"
37
#include <boost/regex.hpp>
Axel Auweter's avatar
Axel Auweter committed
38
39
40

#include "sensorconfig_internal.h"
#include "dcdbglobals.h"
Axel Auweter's avatar
Axel Auweter committed
41
#include "dcdbendian.h"
42
#include "dcdb/virtualsensor.h"
43
#include "dcdb/libconfig.h"
Axel Auweter's avatar
Axel Auweter committed
44

45
46
using namespace DCDB;

Axel Auweter's avatar
Axel Auweter committed
47
/*
48
 * PublicSensor functions.
Axel Auweter's avatar
Axel Auweter committed
49
 */
50
PublicSensor::PublicSensor()
Axel Auweter's avatar
Axel Auweter committed
51
{
52
53
54
55
56
57
58
59
60
    name = "";
    is_virtual = false;
    pattern = "";
    scaling_factor = 1.0;
    unit = "";
    sensor_mask = 0;
    expression = "";
    v_sensorid = "";
    t_zero = 0;
61
62
    interval = 0;
    ttl = 0;
Axel Auweter's avatar
Axel Auweter committed
63
64
}

65
PublicSensor::PublicSensor (const PublicSensor &copy)
Axel Auweter's avatar
Axel Auweter committed
66
{
67
68
69
70
71
72
73
74
75
    name = copy.name;
    is_virtual = copy.is_virtual;
    pattern = copy.pattern;
    scaling_factor = copy.scaling_factor;
    unit = copy.unit;
    sensor_mask = copy.sensor_mask;
    expression = copy.expression;
    v_sensorid = copy.v_sensorid;
    t_zero = copy.t_zero;
76
    interval = copy.interval;
77
    operations = copy.operations;
78
    ttl = copy.ttl;
Axel Auweter's avatar
Axel Auweter committed
79
80
}

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
PublicSensor PublicSensor::metadataToPublicSensor(const SensorMetadata& sm) {
    PublicSensor ps;
    if(sm.getPublicName())
        ps.name = *sm.getPublicName();
    if(sm.getIsVirtual())
        ps.is_virtual = *sm.getIsVirtual();
    if(sm.getPattern())
        ps.pattern = *sm.getPattern();
    if(sm.getUnit())
        ps.unit = *sm.getUnit();
    if(sm.getScale())
        ps.scaling_factor = *sm.getScale();
    if(sm.getTTL())
        ps.ttl = *sm.getTTL();
    if(sm.getInterval())
        ps.interval = *sm.getInterval();
    if(sm.getOperations())
        ps.operations = *sm.getOperations();
    uint64_t sensorMask = 0;
    if(sm.getIntegrable() && *sm.getIntegrable())
        sensorMask = sensorMask | INTEGRABLE;
    if(sm.getMonotonic() && *sm.getMonotonic())
        sensorMask = sensorMask | MONOTONIC;
104
105
    if(sm.getDelta() && *sm.getDelta())
	sensorMask = sensorMask | DELTA;
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    ps.sensor_mask = sensorMask;
    return ps;
}

SensorMetadata PublicSensor::publicSensorToMetadata(const PublicSensor& ps) {
    SensorMetadata sm;
    sm.setPublicName(ps.name);
    sm.setIsVirtual(ps.is_virtual);

    // Stripping whitespace from the sensor pattern in the SID
    string stripPattern = ps.pattern;
    boost::algorithm::trim(stripPattern);
    sm.setPattern(stripPattern);

    sm.setUnit(ps.unit);
    sm.setScale(ps.scaling_factor);
    sm.setTTL(ps.ttl);
    sm.setInterval(ps.interval);
    sm.setOperations(ps.operations);
    sm.setIntegrable(ps.sensor_mask & INTEGRABLE);
    sm.setMonotonic(ps.sensor_mask & MONOTONIC);
127
    sm.setDelta(ps.sensor_mask & DELTA);
128
129
130
    return sm;
}

Axel Auweter's avatar
Axel Auweter committed
131
132
133
134

/*
 * SensorConfig functions
 */
135
136
137

SCError SensorConfig::loadCache()
{
138
    return impl->loadCache();
139
140
}

Axel Auweter's avatar
Axel Auweter committed
141
142
SCError SensorConfig::publishSensor(const char* publicName, const char* sensorPattern)
{
143
    return impl->publishSensor(publicName, sensorPattern);
Axel Auweter's avatar
Axel Auweter committed
144
145
}

146
147
148
149
150
SCError SensorConfig::publishSensor(const PublicSensor& sensor)
{
    return impl->publishSensor(sensor);
}

151
152
153
154
155
SCError SensorConfig::publishSensor(const SensorMetadata& sensor)
{
    return impl->publishSensor(sensor);
}

156
SCError SensorConfig::publishVirtualSensor(const char* publicName, const char* vSensorExpression, const char* vSensorId, TimeStamp tZero, uint64_t interval)
157
{
158
    return impl->publishVirtualSensor(publicName, vSensorExpression, vSensorId, tZero, interval);
159
160
}

161
162
SCError SensorConfig::unPublishSensor(const char* publicName)
{
163
    return impl->unPublishSensor(publicName);
164
165
}

166
167
168
169
170
SCError SensorConfig::unPublishSensorsByWildcard(const char* wildcard)
{
    return impl->unPublishSensorsByWildcard(wildcard);
}

171
SCError SensorConfig::getPublicSensorNames(std::list<std::string>& publicSensors)
Axel Auweter's avatar
Axel Auweter committed
172
{
173
    return impl->getPublicSensorNames(publicSensors);
174
175
}

176
SCError SensorConfig::getPublicSensorsVerbose(std::list<PublicSensor>& publicSensors)
177
{
178
    return impl->getPublicSensorsVerbose(publicSensors);
179
180
}

181
SCError SensorConfig::getPublicSensorByName(PublicSensor& sensor, const char* publicName)
182
{
183
    return impl->getPublicSensorByName(sensor, publicName);
Axel Auweter's avatar
Axel Auweter committed
184
185
}

186
187
188
189
190
SCError SensorConfig::getPublicSensorsByWildcard(std::list<PublicSensor>& sensors, const char* wildcard)
{
    return impl->getPublicSensorsByWildcard(sensors, wildcard);
}

191
192
SCError SensorConfig::isVirtual(bool& isVirtual, std::string publicName)
{
193
    return impl->isVirtual(isVirtual, publicName);
194
195
}

196
SCError SensorConfig::setSensorScalingFactor(std::string publicName, double scalingFactor) {
197
    return impl->setSensorScalingFactor(publicName, scalingFactor);
198
199
200
201
}

SCError SensorConfig::setSensorUnit(std::string publicName, std::string unit)
{
202
    return impl->setSensorUnit(publicName, unit);
203
204
}

205
SCError SensorConfig::setSensorMask(std::string publicName, uint64_t mask)
206
{
207
    return impl->setSensorMask(publicName, mask);
208
209
}

210
SCError SensorConfig::setOperations(std::string publicName, std::set<std::string> operations)
211
212
213
214
{
    return impl->setOperations(publicName,operations);
}

215
216
217
218
219
SCError SensorConfig::clearOperations(std::string publicName)
{
    return impl->clearOperations(publicName);
}

220
221
222
223
224
SCError SensorConfig::clearOperationsByWildcard(std::string wildcard)
{
    return impl->clearOperationsByWildcard(wildcard);
}

225
226
227
228
229
SCError SensorConfig::setTimeToLive(std::string publicName, uint64_t ttl)
{
    return impl->setTimeToLive(publicName, ttl);
}

230
231
SCError SensorConfig::setVirtualSensorExpression(std::string publicName, std::string expression)
{
232
    return impl->setVirtualSensorExpression(publicName, expression);
233
234
235
236
}

SCError SensorConfig::setVirtualSensorTZero(std::string publicName, TimeStamp tZero)
{
237
    return impl->setVirtualSensorTZero(publicName, tZero);
238
239
}

240
SCError SensorConfig::setSensorInterval(std::string publicName, uint64_t interval)
241
{
242
    return impl->setSensorInterval(publicName, interval);
243
244
}

245
246
247
248
249
250
251
252
SCError SensorConfig::getPublishedSensorsWritetime(uint64_t &ts) {
    return impl->getPublishedSensorsWritetime(ts);
}

SCError SensorConfig::setPublishedSensorsWritetime(const uint64_t &ts) {
    return impl->setPublishedSensorsWritetime(ts);
}

253
SensorConfig::SensorConfig(Connection* conn)
Axel Auweter's avatar
Axel Auweter committed
254
{
255
256
    /* Allocate impl object */
    impl = new SensorConfigImpl(conn);
Axel Auweter's avatar
Axel Auweter committed
257
258
259
260
}

SensorConfig::~SensorConfig()
{
261
262
263
    if (impl) {
        delete impl;
    }
Axel Auweter's avatar
Axel Auweter committed
264
265
266
}

/*
267
 * SensorConfigImpl protected members and functions
Axel Auweter's avatar
Axel Auweter committed
268
269
270
271
272
273
274
275
276
277
 */

/*
 * 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)
{
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
    unsigned int wildcards, seps;

    /* Iterate through the string and validate/count the characters */
    wildcards = 0, seps = 0;
    for (unsigned int c = 0; c < strlen(sensorPattern); c++) {
        switch (sensorPattern[c]) {
            case '*':
                wildcards++;
                break;
            case '/':
                seps++;
                break;
                /* Everything else is allowed */
            default:
                break;
        }
    }
Axel Auweter's avatar
Axel Auweter committed
295

296
297
298
    /* More than one wildcard is not allowed */
    if (wildcards > 1)
        return false;
Axel Auweter's avatar
Axel Auweter committed
299

300
301
    if (strlen(sensorPattern) - seps > MAX_PATTERN_LENGTH)
        return false;
Axel Auweter's avatar
Axel Auweter committed
302

303
304
    /* Looks good */
    return true;
Axel Auweter's avatar
Axel Auweter committed
305
306
}

307
308
309
310
311
/*
 * Validate the public name of a sensor.
 */
bool SensorConfigImpl::validateSensorPublicName(std::string publicName)
{
312
    return true;
313
}
Axel Auweter's avatar
Axel Auweter committed
314
315
316
317

/*
 * SensorConfigImpl public functions
 */
318
319
320

SCError SensorConfigImpl::loadCache()
{
321
322
    if (sensorList.size() != 0) {
	return SC_OK;
323
    } else {
324
325
326
327
328
329
330
331
#ifdef DEBUG
	TimeStamp ts;
#endif
	SCError ret = getPublicSensorNames(sensorList);
#ifdef DEBUG
	std::cerr << "loadCache: " << sensorList.size() << " sensors loaded in " << TimeStamp().getRaw() - ts.getRaw() << " ns" << std::endl;
#endif
	return ret;
332
333
334
    }
}

335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
SCError SensorConfigImpl::getClusterName(std::string &name)
{
    name = "";
    /* 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 char* query = "SELECT cluster_name FROM system.local;";

    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) {
        const CassResult* result = cass_future_get_result(future);
        CassIterator* iterator = cass_iterator_from_result(result);

        if (cass_iterator_next(iterator)) {
            const char* nameStr;
            size_t      nameStr_len;

            const CassRow* row = cass_iterator_get_row(iterator);

            if (cass_value_get_string(cass_row_get_column_by_name(row, "cluster_name"), &nameStr, &nameStr_len) == CASS_OK) {
                name = std::string(nameStr, nameStr_len);
            }
        }
        cass_result_free(result);
        cass_iterator_free(iterator);
    } else {
        connection->printError(future);
        cass_future_free(future);
        cass_statement_free(statement);
        return SC_UNKNOWNERROR;
    }

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

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
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
SCError SensorConfigImpl::getPublishedSensorsWritetime(uint64_t &ts)
{
    ts = 0;
    /* 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 char* query = "SELECT value FROM " CONFIG_KEYSPACE_NAME "." CF_MONITORINGMETADATA " where name=\'" CF_PROPERTY_PSWRITETIME "\' ;";

    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) {
        const CassResult* result = cass_future_get_result(future);
        CassIterator* iterator = cass_iterator_from_result(result);

        if (cass_iterator_next(iterator)) {
            const char* tsStr;
            size_t      tsStr_len;

            const CassRow* row = cass_iterator_get_row(iterator);

            if (cass_value_get_string(cass_row_get_column_by_name(row, "value"), &tsStr, &tsStr_len) == CASS_OK) {
                try {
                    ts = TimeStamp(std::string(tsStr, tsStr_len)).getRaw();
                } catch(const std::exception &e) {
                    ts = 0;
                }
            }
        }
        cass_result_free(result);
        cass_iterator_free(iterator);
    } else {
        connection->printError(future);
        cass_future_free(future);
        cass_statement_free(statement);
        return SC_UNKNOWNERROR;
    }

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

SCError SensorConfigImpl::setPublishedSensorsWritetime(const uint64_t &ts)
{
    /* 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_MONITORINGMETADATA " (name, value) 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);

    cass_statement_bind_string_by_name(statement, "name", CF_PROPERTY_PSWRITETIME);
    cass_statement_bind_string_by_name(statement, "value", std::to_string(ts).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);

        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;
}

Axel Auweter's avatar
Axel Auweter committed
489
SCError SensorConfigImpl::publishSensor(std::string publicName, std::string sensorPattern)
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
    /* Check if the pattern matches the requirements */
    SensorId sid;
    if (!validateSensorPattern(sensorPattern.c_str()) || !sid.mqttTopicConvert(sensorPattern)) {
        return SC_INVALIDPATTERN;
    }

    /* Check if the publicName is valid */
    if (!validateSensorPublicName(publicName.c_str())) {
        return SC_INVALIDPUBLICNAME;
    }

    /* 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, virtual) VALUES (?,?, FALSE);";

    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);
    }

Axel Auweter's avatar
Axel Auweter committed
526
527
    cass_future_free(future);

528
    statement = cass_prepared_bind(prepared);
Axel Auweter's avatar
Axel Auweter committed
529

530
531
    cass_statement_bind_string_by_name(statement, "name", publicName.c_str());
    cass_statement_bind_string_by_name(statement, "pattern", sid.getId().c_str());
Axel Auweter's avatar
Axel Auweter committed
532

533
534
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
Axel Auweter's avatar
Axel Auweter committed
535

536
537
538
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
Axel Auweter's avatar
Axel Auweter committed
539

540
541
        cass_prepared_free(prepared);
        cass_future_free(future);
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
        cass_statement_free(statement);

        return SC_UNKNOWNERROR;
    }

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

    return SC_OK;
}

SCError SensorConfigImpl::publishSensor(const PublicSensor& sensor)
{
    /* Check if the pattern matches the requirements */
    SensorId sid;
    if (!validateSensorPattern(sensor.pattern.c_str()) || !sid.mqttTopicConvert(sensor.pattern)) {
        return SC_INVALIDPATTERN;
    }

    /* Check if the publicName is valid */
    if (!validateSensorPublicName(sensor.name.c_str())) {
        return SC_INVALIDPUBLICNAME;
    }

    /* 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;
577
    const char* query = "INSERT INTO " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " (name, pattern, virtual, scaling_factor, unit, sensor_mask, interval, ttl) VALUES (?,?, FALSE, ?, ?, ?, ?, ?);";
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601

    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", sensor.name.c_str());
    cass_statement_bind_string_by_name(statement, "pattern", sid.getId().c_str());
    cass_statement_bind_double_by_name(statement, "scaling_factor", sensor.scaling_factor);
    cass_statement_bind_string_by_name(statement, "unit", sensor.unit.c_str());
    cass_statement_bind_int64_by_name(statement, "sensor_mask", sensor.sensor_mask);
    cass_statement_bind_int64_by_name(statement, "interval", sensor.interval);
    cass_statement_bind_int64_by_name(statement, "ttl", sensor.ttl);
602
    
603
604
605
606
607
608
609
610
611
    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);
612
613
614
615
616
617
618
619
620
        cass_statement_free(statement);

        return SC_UNKNOWNERROR;
    }

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

621
622
623
624
625
    // Operations are inserted as an update statement, if required
    if(sensor.operations.size() > 0)
        return setOperations(sensor.name, sensor.operations);
    else
        return SC_OK;
626
627
628
629
630
631
632
633
634
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
}

SCError SensorConfigImpl::publishSensor(const SensorMetadata& sensor)
{
    /* Check if the pattern matches the requirements */
    SensorId sid;
    if (!sensor.getPattern() || !validateSensorPattern(sensor.getPattern()->c_str()) || !sid.mqttTopicConvert(*sensor.getPattern())) {
        return SC_INVALIDPATTERN;
    }

    /* Check if the publicName is valid */
    if (!sensor.getPublicName() || !validateSensorPublicName(sensor.getPublicName()->c_str())) {
        return SC_INVALIDPUBLICNAME;
    }

    /* 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;
    
    std::string queryBuf = "INSERT INTO " + std::string(CONFIG_KEYSPACE_NAME) + "." + std::string(CF_PUBLISHEDSENSORS) + " (name, pattern, virtual";
    std::string valuesBuf = ") VALUES (?, ?, FALSE";
    std::string closingBuf = ");";
            
    if(sensor.getScale()) {
        queryBuf += ", scaling_factor";
        valuesBuf += ", ?";
    }
    if(sensor.getUnit()) {
        queryBuf += ", unit";
        valuesBuf += ", ?";
    }
664
    if(sensor.getIntegrable() || sensor.getMonotonic() || sensor.getDelta()) {
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
        queryBuf += ", sensor_mask";
        valuesBuf += ", ?";
    }
    if(sensor.getInterval()) {
        queryBuf += ", interval";
        valuesBuf += ", ?";
    }
    if(sensor.getTTL()) {
        queryBuf += ", ttl";
        valuesBuf += ", ?";
    }
    
    std::string query = queryBuf + valuesBuf + closingBuf;

    future = cass_session_prepare(session, query.c_str());
    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", sensor.getPublicName()->c_str());
    cass_statement_bind_string_by_name(statement, "pattern", sid.getId().c_str());
    
    if(sensor.getScale())
        cass_statement_bind_double_by_name(statement, "scaling_factor", *sensor.getScale());
    if(sensor.getUnit())
        cass_statement_bind_string_by_name(statement, "unit", sensor.getUnit()->c_str());
    if(sensor.getInterval())
        cass_statement_bind_int64_by_name(statement, "interval", *sensor.getInterval());
    if(sensor.getTTL())
        cass_statement_bind_int64_by_name(statement, "ttl", *sensor.getTTL());
705
    if(sensor.getIntegrable() || sensor.getMonotonic() || sensor.getDelta()) {
706
707
708
709
710
        uint64_t sensorMask = 0;
        if(sensor.getIntegrable())
            sensorMask = sensorMask | INTEGRABLE;
        if(sensor.getMonotonic())
            sensorMask = sensorMask | MONOTONIC;
711
712
	if(sensor.getDelta())
	    sensorMask = sensorMask | DELTA;
713
714
        cass_statement_bind_int64_by_name(statement, "sensor_mask", sensorMask);
    }
715
    
716
717
718
719
720
721
722
723
724
    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);
725
726
727
728
        cass_statement_free(statement);

        return SC_UNKNOWNERROR;
    }
729
730
731
732

    cass_prepared_free(prepared);
    cass_future_free(future);
    cass_statement_free(statement);
733
734
735
736
737
738
    
    // Operations are inserted as an update statement, if required
    if(sensor.getOperations() && sensor.getOperations()->size()>0)
        return setOperations(*sensor.getPublicName(), *sensor.getOperations());
    else
        return SC_OK;
739
740
}

741
SCError SensorConfigImpl::publishVirtualSensor(std::string publicName, std::string vSensorExpression, std::string vSensorId, TimeStamp tZero, uint64_t interval)
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
772
773
774
775
776
777
778
779
780
    /* Check if the publicName is valid */
    if (!validateSensorPublicName(publicName.c_str())) {
        return SC_INVALIDPUBLICNAME;
    }

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

    /* Validate vSensorExpression */
    try {
        VSensorExpression vsExp(connection, vSensorExpression);

        /* Check that it is not recursive-pointing to itself */
        std::unordered_set<std::string> inputSet;
        vsExp.getInputsRecursive(inputSet);
        std::unordered_set<std::string>::const_iterator found = inputSet.find(publicName);
        if (found != inputSet.end()) {
            return SC_EXPRESSIONSELFREF;
        }
    }
    catch (std::exception& e) {
        std::cout << e.what();
        return SC_INVALIDEXPRESSION;
    }

    /* Check if the vSensorId is valid */
    SensorId vSensor;
    if (!vSensor.mqttTopicConvert(vSensorId)) {
        return SC_INVALIDVSENSORID;
    }

    /* Insert the entry */
    CassError rc = CASS_OK;
    CassStatement* statement = nullptr;
    CassFuture* future = nullptr;
    const CassPrepared* prepared = nullptr;
781
    const char* query = "INSERT INTO " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " (name, expression, vsensorid, tzero, interval, virtual) VALUES (?,?,?,?,?,TRUE);";
782
783
784
785
786
787
788
789
790
791
792
793
794

    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);
    }

795
796
    cass_future_free(future);

797
    statement = cass_prepared_bind(prepared);
798

799
800
801
802
    cass_statement_bind_string_by_name(statement, "name", publicName.c_str());
    cass_statement_bind_string_by_name(statement, "expression", vSensorExpression.c_str());
    cass_statement_bind_string_by_name(statement, "vsensorid", vSensorId.c_str());
    cass_statement_bind_int64_by_name(statement, "tzero", tZero.getRaw());
803
    cass_statement_bind_int64_by_name(statement, "interval", interval);
804

805
806
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
807

808
809
810
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
811

812
813
814
815
816
817
        cass_prepared_free(prepared);
        cass_future_free(future);
        cass_statement_free(statement);

        return SC_UNKNOWNERROR;
    }
818
819
820
821
822

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

823
    return SC_OK;
824
825
826
}


827
828
SCError SensorConfigImpl::unPublishSensor(std::string publicName)
{
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
    /* Check if the session is valid */
    if (!session) {
        return SC_INVALIDSESSION;
    }

    /* Remove the entry */
    CassError rc = CASS_OK;
    CassStatement* statement = nullptr;
    CassFuture* future = nullptr;
    const CassPrepared* prepared = nullptr;
    const char* query = "DELETE 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);
    }

853
854
    cass_future_free(future);

855
856
857
    statement = cass_prepared_bind(prepared);

    cass_statement_bind_string_by_name(statement, "name", publicName.c_str());
858

859
860
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
861

862
863
864
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
865

866
867
868
        cass_prepared_free(prepared);
        cass_future_free(future);
        cass_statement_free(statement);
869

870
871
        return SC_UNKNOWNERROR;
    }
Axel Auweter's avatar
Axel Auweter committed
872
873
874
875
876

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

877
    return SC_OK;
Axel Auweter's avatar
Axel Auweter committed
878
879
}

880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
SCError SensorConfigImpl::unPublishSensorsByWildcard(std::string wildcard)
{
    std::list<PublicSensor> sensors;
    if(getPublicSensorsByWildcard(sensors, wildcard.c_str())!=SC_OK)
        return SC_UNKNOWNERROR;
    
    for(const auto& s : sensors) {
        if (unPublishSensor(s.name.c_str()) != SC_OK) {
            return SC_UNKNOWNERROR;
        }
    }
        
    return SC_OK;
}

895
896
SCError SensorConfigImpl::getPublicSensorNames(std::list<std::string>& publicSensors)
{
897
898
#ifdef USE_SENSOR_CACHE
    // If we have a valid cache file, we bypass querying the database
899
    if(findSensorCachePath() == SC_OK && loadNamesFromFile(publicSensors) == SC_OK) {
900
901
902
903
        return SC_OK;
    }
#endif
    
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
    /* 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);
919
    cass_statement_set_paging_size(statement, PAGING_SIZE);
920

921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
    bool morePages = false;
    do {
        future = cass_session_execute(session, statement);
        cass_future_wait(future);
    
        rc = cass_future_error_code(future);
        if (rc == CASS_OK) {
            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));
942
943
            }

944
945
946
947
948
949
950
951
952
953
            if((morePages = cass_result_has_more_pages(result)))
                cass_statement_set_paging_state(statement, result);
            
            cass_result_free(result);
            cass_iterator_free(iterator);
        } else {
            connection->printError(future);
            cass_future_free(future);
            cass_statement_free(statement);
            return SC_UNKNOWNERROR;
954
        }
955
956
957

        cass_future_free(future);
        
958
    }
959
    while(morePages);
960
961

    cass_statement_free(statement);
962
963

#ifdef USE_SENSOR_CACHE
964
965
    if(findSensorCachePath() == SC_OK) {
	saveNamesToFile(publicSensors);
966
967
968
    }
#endif
    
969
    return SC_OK;
970
971
}

972
SCError SensorConfigImpl::getPublicSensorsVerbose(std::list<PublicSensor>& publicSensors)
Axel Auweter's avatar
Axel Auweter committed
973
{
974
975
#ifdef USE_SENSOR_CACHE
    // If we have a valid cache file, we bypass querying the database
976
    if(findSensorCachePath() == SC_OK && loadMetadataFromFile(publicSensors) == SC_OK) {
977
978
979
980
        return SC_OK;
    }
#endif
    
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
    /* 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 * FROM " CONFIG_KEYSPACE_NAME "." CF_PUBLISHEDSENSORS " ;";

    statement = cass_statement_new(query, 0);
996
    cass_statement_set_paging_size(statement, PAGING_SIZE);
997

998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
    bool morePages = false;
    do {
        future = cass_session_execute(session, statement);
        cass_future_wait(future);
    
        rc = cass_future_error_code(future);
        if (rc == CASS_OK) {
            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;
                cass_bool_t is_virtual;
                const char* pattern;
                size_t      pattern_len;
                double      scaling_factor;
                const char* unit;
                size_t      unit_len;
                int64_t     sensor_mask;
                const char* expression;
                size_t      expression_len;
                const char* vsensorid;
                size_t      vsensorid_len;
                int64_t     tzero;
                int64_t     interval;
                int64_t     ttl;
                set<string> operations;
                PublicSensor 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;
1032
                }
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
                if (cass_value_get_bool(cass_row_get_column_by_name(row, "virtual"), &is_virtual) != CASS_OK) {
                    is_virtual = cass_false;
                }
                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_int64(cass_row_get_column_by_name(row, "sensor_mask"), &sensor_mask) != CASS_OK) {
                    sensor_mask = 0;
                }
                if (cass_value_get_string(cass_row_get_column_by_name(row, "expression"), &expression, &expression_len) != CASS_OK) {
                    expression = ""; expression_len = 0;
                }
                if (cass_value_get_string(cass_row_get_column_by_name(row, "vsensorid"), &vsensorid, &vsensorid_len) != CASS_OK) {
                    vsensorid = ""; vsensorid_len = 0;
                }
                if (cass_value_get_int64(cass_row_get_column_by_name(row, "tzero"), &tzero) != CASS_OK) {
                    tzero = 0;
                }
                if (cass_value_get_int64(cass_row_get_column_by_name(row, "interval"), &interval) != CASS_OK) {
                    interval = 0;
                }
                if (cass_value_get_int64(cass_row_get_column_by_name(row, "ttl"), &ttl) != CASS_OK) {
                    ttl = 0;
                }
    
                const CassValue* opSet = nullptr;
                CassIterator *opSetIt = nullptr;
                if((opSet=cass_row_get_column_by_name(row, "operations")) && (opSetIt=cass_iterator_from_collection(opSet))) {
                    const char *opString;
                    size_t opLen;
    
                    while (cass_iterator_next(opSetIt)) {
                        if (cass_value_get_string(cass_iterator_get_value(opSetIt), &opString, &opLen) != CASS_OK) {
                            operations.clear();
                            break;
                        } else
                            operations.insert(std::string(opString, opLen));
                    }
    
                    cass_iterator_free(opSetIt);
                }
                
                sensor.name = std::string(name, name_len);
                sensor.is_virtual = is_virtual == cass_true ? true : false;
                sensor.pattern = std::string(pattern, pattern_len);
                sensor.scaling_factor = scaling_factor;
                sensor.unit = std::string(unit, unit_len);
                sensor.sensor_mask = sensor_mask;
                sensor.expression = std::string(expression, expression_len);
                sensor.v_sensorid = std::string(vsensorid, vsensorid_len);
                sensor.t_zero = tzero;
                sensor.interval = interval;
                sensor.ttl = ttl;
                sensor.operations = operations;
    
                publicSensors.push_back(sensor);
1095
            }
1096
1097
1098

            if((morePages = cass_result_has_more_pages(result)))
                cass_statement_set_paging_state(statement, result);
1099
            
1100
1101
1102
1103
1104
1105
1106
            cass_result_free(result);
            cass_iterator_free(iterator);
        } else {
            connection->printError(future);
            cass_future_free(future);
            cass_statement_free(statement);
            return SC_UNKNOWNERROR;
1107
1108
        }

1109
1110
1111
1112
1113
        cass_future_free(future);
        
    }
    while(morePages);
    
1114
    cass_statement_free(statement);
1115
1116

#ifdef USE_SENSOR_CACHE
1117
1118
    if(findSensorCachePath() == SC_OK) {
	saveMetadataToFile(publicSensors);
1119
1120
1121
    }
#endif
    
1122
    return SC_OK;
Axel Auweter's avatar
Axel Auweter committed
1123
1124
}

1125
SCError SensorConfigImpl::getPublicSensorByName(PublicSensor& sensor, const char* publicName)
1126
{
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
    /* Check if the sensor definition is already in the cache */
    SensorMap_t::const_iterator got = sensorMapByName.find(publicName);
    if (got != sensorMapByName.end()) {
        sensor = got->second;
        return SC_OK;
    }

    /* Not in cache - query the data base */
    /* 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);
1171
        cass_prepared_free(prepared);
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
        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;
            cass_bool_t is_virtual;
            const char* pattern;
            size_t      pattern_len;
            double      scaling_factor;
            const char* unit;
            size_t      unit_len;
            int64_t     sensor_mask;
            const char* expression;
            size_t      expression_len;
            const char* vsensorid;
            size_t      vsensorid_len;
            int64_t     tzero;
1192
1193
            int64_t     interval;
            int64_t     ttl;
1194
            set<string> operations;
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224

            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_bool(cass_row_get_column_by_name(row, "virtual"), &is_virtual) != CASS_OK) {
                is_virtual = cass_false;
            }
            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_int64(cass_row_get_column_by_name(row, "sensor_mask"), &sensor_mask) != CASS_OK) {
                sensor_mask = 0;
            }
            if (cass_value_get_string(cass_row_get_column_by_name(row, "expression"), &expression, &expression_len) != CASS_OK) {
                expression = ""; expression_len = 0;
            }
            if (cass_value_get_string(cass_row_get_column_by_name(row, "vsensorid"), &vsensorid, &vsensorid_len) != CASS_OK) {
                vsensorid = ""; vsensorid_len = 0;
            }
            if (cass_value_get_int64(cass_row_get_column_by_name(row, "tzero"), &tzero) != CASS_OK) {
                tzero = 0;
            }
1225
1226
1227
1228
1229
            if (cass_value_get_int64(cass_row_get_column_by_name(row, "interval"), &interval) != CASS_OK) {
                interval = 0;
            }
            if (cass_value_get_int64(cass_row_get_column_by_name(row, "ttl"), &ttl) != CASS_OK) {
                ttl = 0;
1230
            }
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246

            const CassValue* opSet = nullptr;
            CassIterator *opSetIt = nullptr;
            if((opSet=cass_row_get_column_by_name(row, "operations")) && (opSetIt=cass_iterator_from_collection(opSet))) {
                const char *opString;
                size_t opLen;

                while (cass_iterator_next(opSetIt)) {
                    if (cass_value_get_string(cass_iterator_get_value(opSetIt), &opString, &opLen) != CASS_OK) {
                        operations.clear();
                        break;
                    } else
                        operations.insert(std::string(opString, opLen));
                }

                cass_iterator_free(opSetIt);
1247
            }
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257

            sensor.name = std::string(name, name_len);
            sensor.is_virtual = is_virtual == cass_true ? true : false;
            sensor.pattern = std::string(pattern, pattern_len);
            sensor.scaling_factor = scaling_factor;
            sensor.unit = std::string(unit, unit_len);
            sensor.sensor_mask = sensor_mask;
            sensor.expression = std::string(expression, expression_len);
            sensor.v_sensorid = std::string(vsensorid, vsensorid_len);
            sensor.t_zero = tzero;
1258
1259
            sensor.interval = interval;
            sensor.ttl = ttl;
1260
            sensor.operations = operations;
1261

1262
1263
            /* Add to sensorMap for later use */
            sensorMapByName.insert(std::make_pair(publicName, sensor));
1264
1265
1266
1267
1268
1269
        }
        else {
            cass_result_free(result);
            cass_iterator_free(iterator);
            cass_future_free(future);
            cass_statement_free(statement);
1270
            cass_prepared_free(prepared);
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
            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;
1281
1282
}

1283
1284
1285
SCError SensorConfigImpl::getPublicSensorsByWildcard(std::list<PublicSensor>& sensors, const char* wildcard)
{
    SCError err = SC_OK;
1286

1287
    if (strpbrk(wildcard, "*?") == NULL) {
1288
1289
1290
1291
1292
        PublicSensor sen;
        if ((err = getPublicSensorByName(sen, wildcard)) == SC_OK) {
            sensors.push_back(sen);
        }
        return err;
1293
    } else {
1294
	if (loadCache() == SC_OK) {
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
            std::string w("^");
            while (*wildcard != 0) {
                switch (*wildcard) {
                    case '.':
                    case '[':
                    case '\\':
                    case '^':
                    case '$':
                        w.append("\\");
                        w.append(wildcard, 1);
                        break;
                    case '?':
                        w.append(".");
                        break;
                    case '*':
                        w.append(".*");
                        break;
                    default:
                        w.append(wildcard, 1);
                        break;
                }
                wildcard++;
            }

            boost::regex r(w, boost::regex::basic);
1320
	    for (auto s: sensorList) {
1321
1322
1323
1324
                if (boost::regex_match(s, r)) {
		    PublicSensor ps;
		    getPublicSensorByName(ps, s.c_str());
		    sensors.push_back(ps);
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
                }
            }

            if (sensors.size() > 0) {
                return SC_OK;
            } else {
                return SC_UNKNOWNSENSOR;
            }
        } else {
            return err;
        }
1336
1337
1338
    }
}

1339
1340
SCError SensorConfigImpl::isVirtual(bool& isVirtual, std::string publicName)
{
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
    /* Check if the session is valid */
    if (!session) {
        return SC_INVALIDSESSION;
    }

    /* Read the virtual field from the database */
    CassError rc = CASS_OK;
    CassStatement* statement = nullptr;
    CassFuture* future = nullptr;
    const CassPrepared* prepared = nullptr;
    const char* query = "SELECT virtual 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.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)) {
            cass_bool_t isVirtual_;
            const CassRow* row = cass_iterator_get_row(iterator);
            cass_value_get_bool(cass_row_get_column_by_name(row, "virtual"), &isVirtual_);
            isVirtual = isVirtual_ ? true : false;
        }
        else {
1386
1387
1388
1389
1390
            cass_result_free(result);
            cass_iterator_free(iterator);
            cass_future_free(future);
            cass_statement_free(statement);
            cass_prepared_free(prepared);
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
            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;
1402
1403
}

1404
1405
SCError SensorConfigImpl::setSensorScalingFactor(std::string publicName, double scalingFactor)
{
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
    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);
1421
        cass_future_free(future);
1422
1423
        return SC_UNKNOWNERROR;
    }
1424

1425
1426
    prepared = cass_future_get_prepared(future);
    cass_future_free(future);
1427

1428
    statement = cass_prepared_bind(prepared);
1429

1430
1431
    cass_statement_bind_double(statement, 0, scalingFactor);
    cass_statement_bind_string(statement, 1, publicName.c_str());
1432

1433
1434
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
1435

1436
1437
1438
1439
1440
1441
1442
1443
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
        error = SC_UNKNOWNERROR;
    }
    else {
        error = SC_OK;
    }
1444

1445
    cass_future_free(future);
1446
1447
    cass_statement_free(statement);
    cass_prepared_free(prepared);
1448

1449
    return error;
1450
1451
1452
1453
}

SCError SensorConfigImpl::setSensorUnit(std::string publicName, std::string unit)
{
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
    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);
1469
        cass_future_free(future);
1470
1471
1472
1473
1474
        return SC_UNKNOWNERROR;
    }

    prepared = cass_future_get_prepared(future);
    cass_future_free(future);
1475

1476
    statement = cass_prepared_bind(prepared);
1477

1478
1479
    cass_statement_bind_string(statement, 0, unit.c_str());
    cass_statement_bind_string(statement, 1, publicName.c_str());
1480

1481
1482
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
1483

1484
1485
1486
1487
1488
1489
1490
1491
1492
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
        error = SC_UNKNOWNERROR;
    }
    else {
        error = SC_OK;
    }

1493
    cass_future_free(future);
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
    cass_statement_free(statement);
    cass_prepared_free(prepared);

    return error;
}

SCError SensorConfigImpl::setSensorMask(std::string publicName, uint64_t mask)
{
    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 sensor_mask = ? 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);
1517
        cass_future_free(future);
1518
1519
        return SC_UNKNOWNERROR;
    }
1520

1521
1522
    prepared = cass_future_get_prepared(future);
    cass_future_free(future);
1523

1524
    statement = cass_prepared_bind(prepared);
1525

1526
1527
    cass_statement_bind_int64(statement, 0, mask);
    cass_statement_bind_string(statement, 1, publicName.c_str());
1528

1529
1530
    future = cass_session_execute(session, statement);
    cass_future_wait(future);
1531

1532
1533
1534
1535
1536
1537
1538
1539
    rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
        connection->printError(future);
        error = SC_UNKNOWNERROR;
    }
    else {
        error = SC_OK;
    }
1540