MyEMS /
myems
| Total Complexity | 162 |
| Total Lines | 970 |
| Duplicated Lines | 38.45 % |
| Changes | 0 | ||
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like core.sensor 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 uuid |
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| 2 | from datetime import datetime, timedelta |
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| 3 | import falcon |
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| 4 | import mysql.connector |
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| 5 | import simplejson as json |
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| 6 | import redis |
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| 7 | from core.useractivity import user_logger, admin_control, access_control, api_key_control |
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| 8 | import config |
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| 9 | |||
| 10 | |||
| 11 | View Code Duplication | def clear_sensor_cache(sensor_id=None): |
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Duplication
introduced
by
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| 12 | """ |
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| 13 | Clear sensor-related cache after data modification |
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| 14 | |||
| 15 | Args: |
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| 16 | sensor_id: Sensor ID (optional, for specific sensor cache) |
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| 17 | """ |
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| 18 | # Check if Redis is enabled |
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| 19 | if not config.redis.get('is_enabled', False): |
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| 20 | return |
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| 21 | |||
| 22 | redis_client = None |
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| 23 | try: |
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| 24 | redis_client = redis.Redis( |
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| 25 | host=config.redis['host'], |
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| 26 | port=config.redis['port'], |
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| 27 | password=config.redis['password'] if config.redis['password'] else None, |
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| 28 | db=config.redis['db'], |
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| 29 | decode_responses=True, |
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| 30 | socket_connect_timeout=2, |
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| 31 | socket_timeout=2 |
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| 32 | ) |
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| 33 | redis_client.ping() |
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| 34 | |||
| 35 | # Clear sensor list cache (all search query variations) |
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| 36 | list_cache_key_pattern = 'sensor:list:*' |
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| 37 | matching_keys = redis_client.keys(list_cache_key_pattern) |
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| 38 | if matching_keys: |
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| 39 | redis_client.delete(*matching_keys) |
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| 40 | |||
| 41 | # Clear specific sensor item cache if sensor_id is provided |
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| 42 | if sensor_id: |
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| 43 | item_cache_key = f'sensor:item:{sensor_id}' |
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| 44 | redis_client.delete(item_cache_key) |
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| 45 | point_cache_key = f'sensor:point:{sensor_id}' |
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| 46 | redis_client.delete(point_cache_key) |
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| 47 | export_cache_key = f'sensor:export:{sensor_id}' |
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| 48 | redis_client.delete(export_cache_key) |
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| 49 | |||
| 50 | except Exception: |
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| 51 | # If cache clear fails, ignore and continue |
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| 52 | pass |
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| 53 | |||
| 54 | |||
| 55 | class SensorCollection: |
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| 56 | """ |
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| 57 | Sensor Collection Resource |
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| 58 | |||
| 59 | This class handles CRUD operations for sensor collection. |
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| 60 | It provides endpoints for listing all sensors and creating new sensors. |
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| 61 | Sensors represent data collection devices in the energy management system. |
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| 62 | """ |
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| 63 | |||
| 64 | def __init__(self): |
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| 65 | """Initialize SensorCollection""" |
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| 66 | pass |
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| 67 | |||
| 68 | @staticmethod |
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| 69 | def on_options(req, resp): |
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| 70 | """Handle OPTIONS requests for CORS preflight""" |
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| 71 | _ = req |
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| 72 | resp.status = falcon.HTTP_200 |
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| 73 | |||
| 74 | @staticmethod |
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| 75 | def on_get(req, resp): |
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| 76 | if 'API-KEY' not in req.headers or \ |
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| 77 | not isinstance(req.headers['API-KEY'], str) or \ |
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| 78 | len(str.strip(req.headers['API-KEY'])) == 0: |
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| 79 | access_control(req) |
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| 80 | else: |
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| 81 | api_key_control(req) |
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| 82 | |||
| 83 | search_query = req.get_param('q', default=None) |
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| 84 | if search_query is not None: |
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| 85 | search_query = search_query.strip() |
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| 86 | else: |
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| 87 | search_query = '' |
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| 88 | |||
| 89 | # Redis cache key |
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| 90 | cache_key = f'sensor:list:{search_query}' |
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| 91 | cache_expire = 28800 # 8 hours in seconds (long-term cache) |
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| 92 | |||
| 93 | # Try to get from Redis cache (only if Redis is enabled) |
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| 94 | redis_client = None |
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| 95 | if config.redis.get('is_enabled', False): |
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| 96 | try: |
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| 97 | redis_client = redis.Redis( |
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| 98 | host=config.redis['host'], |
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| 99 | port=config.redis['port'], |
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| 100 | password=config.redis['password'] if config.redis['password'] else None, |
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| 101 | db=config.redis['db'], |
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| 102 | decode_responses=True, |
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| 103 | socket_connect_timeout=2, |
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| 104 | socket_timeout=2 |
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| 105 | ) |
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| 106 | redis_client.ping() |
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| 107 | cached_result = redis_client.get(cache_key) |
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| 108 | if cached_result: |
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| 109 | resp.text = cached_result |
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| 110 | return |
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| 111 | except Exception: |
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| 112 | # If Redis connection fails, continue to database query |
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| 113 | pass |
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| 114 | |||
| 115 | # Cache miss or Redis error - query database |
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| 116 | cnx = mysql.connector.connect(**config.myems_system_db) |
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| 117 | cursor = cnx.cursor() |
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| 118 | |||
| 119 | query = (" SELECT id, name, uuid, description " |
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| 120 | " FROM tbl_sensors ") |
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| 121 | |||
| 122 | params = [] |
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| 123 | if search_query: |
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| 124 | query += " WHERE name LIKE %s OR description LIKE %s " |
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| 125 | params = [f'%{search_query}%', f'%{search_query}%'] |
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| 126 | query += " ORDER BY id " |
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| 127 | cursor.execute(query, params) |
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| 128 | |||
| 129 | rows_sensors = cursor.fetchall() |
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| 130 | |||
| 131 | result = list() |
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| 132 | if rows_sensors is not None and len(rows_sensors) > 0: |
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| 133 | for row in rows_sensors: |
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| 134 | meta_result = {"id": row[0], |
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| 135 | "name": row[1], |
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| 136 | "uuid": row[2], |
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| 137 | "description": row[3]} |
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| 138 | result.append(meta_result) |
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| 139 | |||
| 140 | cursor.close() |
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| 141 | cnx.close() |
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| 142 | |||
| 143 | # Store result in Redis cache |
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| 144 | result_json = json.dumps(result) |
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| 145 | if redis_client: |
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| 146 | try: |
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| 147 | redis_client.setex(cache_key, cache_expire, result_json) |
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| 148 | except Exception: |
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| 149 | # If cache set fails, ignore and continue |
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| 150 | pass |
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| 151 | |||
| 152 | resp.text = result_json |
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| 153 | |||
| 154 | View Code Duplication | @staticmethod |
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| 155 | @user_logger |
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| 156 | def on_post(req, resp): |
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| 157 | """Handles POST requests""" |
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| 158 | admin_control(req) |
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| 159 | try: |
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| 160 | raw_json = req.stream.read().decode('utf-8') |
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| 161 | except UnicodeDecodeError as ex: |
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| 162 | print("Failed to decode request") |
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| 163 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 164 | title='API.BAD_REQUEST', |
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| 165 | description='API.INVALID_ENCODING') |
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| 166 | except Exception as ex: |
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| 167 | print("Unexpected error reading request stream") |
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| 168 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 169 | title='API.BAD_REQUEST', |
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| 170 | description='API.FAILED_TO_READ_REQUEST_STREAM') |
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| 171 | |||
| 172 | new_values = json.loads(raw_json) |
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| 173 | |||
| 174 | if 'name' not in new_values['data'].keys() or \ |
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| 175 | not isinstance(new_values['data']['name'], str) or \ |
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| 176 | len(str.strip(new_values['data']['name'])) == 0: |
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| 177 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 178 | description='API.INVALID_SENSOR_NAME') |
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| 179 | name = str.strip(new_values['data']['name']) |
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| 180 | |||
| 181 | if 'description' in new_values['data'].keys() and \ |
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| 182 | new_values['data']['description'] is not None and \ |
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| 183 | len(str(new_values['data']['description'])) > 0: |
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| 184 | description = str.strip(new_values['data']['description']) |
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| 185 | else: |
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| 186 | description = None |
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| 187 | |||
| 188 | cnx = mysql.connector.connect(**config.myems_system_db) |
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| 189 | cursor = cnx.cursor() |
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| 190 | |||
| 191 | cursor.execute(" SELECT name " |
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| 192 | " FROM tbl_sensors " |
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| 193 | " WHERE name = %s ", (name,)) |
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| 194 | if cursor.fetchone() is not None: |
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| 195 | cursor.close() |
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| 196 | cnx.close() |
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| 197 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 198 | description='API.SENSOR_NAME_IS_ALREADY_IN_USE') |
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| 199 | |||
| 200 | add_values = (" INSERT INTO tbl_sensors " |
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| 201 | " (name, uuid, description) " |
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| 202 | " VALUES (%s, %s, %s) ") |
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| 203 | cursor.execute(add_values, (name, |
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| 204 | str(uuid.uuid4()), |
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| 205 | description)) |
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| 206 | new_id = cursor.lastrowid |
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| 207 | cnx.commit() |
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| 208 | cursor.close() |
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| 209 | cnx.close() |
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| 210 | |||
| 211 | # Clear cache after creating new sensor |
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| 212 | clear_sensor_cache() |
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| 213 | |||
| 214 | resp.status = falcon.HTTP_201 |
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| 215 | resp.location = '/sensors/' + str(new_id) |
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| 216 | |||
| 217 | |||
| 218 | class SensorItem: |
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| 219 | def __init__(self): |
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| 220 | pass |
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| 221 | |||
| 222 | @staticmethod |
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| 223 | def on_options(req, resp, id_): |
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| 224 | _ = req |
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| 225 | resp.status = falcon.HTTP_200 |
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| 226 | _ = id_ |
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| 227 | |||
| 228 | @staticmethod |
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| 229 | def on_get(req, resp, id_): |
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| 230 | if 'API-KEY' not in req.headers or \ |
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| 231 | not isinstance(req.headers['API-KEY'], str) or \ |
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| 232 | len(str.strip(req.headers['API-KEY'])) == 0: |
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| 233 | access_control(req) |
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| 234 | else: |
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| 235 | api_key_control(req) |
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| 236 | if not id_.isdigit() or int(id_) <= 0: |
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| 237 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 238 | description='API.INVALID_SENSOR_ID') |
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| 239 | |||
| 240 | # Redis cache key |
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| 241 | cache_key = f'sensor:item:{id_}' |
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| 242 | cache_expire = 28800 # 8 hours in seconds (long-term cache) |
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| 243 | |||
| 244 | # Try to get from Redis cache (only if Redis is enabled) |
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| 245 | redis_client = None |
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| 246 | if config.redis.get('is_enabled', False): |
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| 247 | try: |
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| 248 | redis_client = redis.Redis( |
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| 249 | host=config.redis['host'], |
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| 250 | port=config.redis['port'], |
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| 251 | password=config.redis['password'] if config.redis['password'] else None, |
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| 252 | db=config.redis['db'], |
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| 253 | decode_responses=True, |
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| 254 | socket_connect_timeout=2, |
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| 255 | socket_timeout=2 |
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| 256 | ) |
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| 257 | redis_client.ping() |
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| 258 | cached_result = redis_client.get(cache_key) |
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| 259 | if cached_result: |
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| 260 | resp.text = cached_result |
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| 261 | return |
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| 262 | except Exception: |
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| 263 | # If Redis connection fails, continue to database query |
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| 264 | pass |
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| 265 | |||
| 266 | # Cache miss or Redis error - query database |
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| 267 | cnx = mysql.connector.connect(**config.myems_system_db) |
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| 268 | cursor = cnx.cursor() |
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| 269 | |||
| 270 | query = (" SELECT id, name, uuid, description " |
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| 271 | " FROM tbl_sensors " |
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| 272 | " WHERE id = %s ") |
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| 273 | cursor.execute(query, (id_,)) |
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| 274 | row = cursor.fetchone() |
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| 275 | cursor.close() |
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| 276 | cnx.close() |
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| 277 | |||
| 278 | if row is None: |
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| 279 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
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| 280 | description='API.SENSOR_NOT_FOUND') |
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| 281 | else: |
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| 282 | meta_result = {"id": row[0], |
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| 283 | "name": row[1], |
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| 284 | "uuid": row[2], |
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| 285 | "description": row[3]} |
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| 286 | |||
| 287 | # Store result in Redis cache |
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| 288 | result_json = json.dumps(meta_result) |
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| 289 | if redis_client: |
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| 290 | try: |
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| 291 | redis_client.setex(cache_key, cache_expire, result_json) |
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| 292 | except Exception: |
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| 293 | # If cache set fails, ignore and continue |
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| 294 | pass |
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| 295 | |||
| 296 | resp.text = result_json |
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| 297 | |||
| 298 | @staticmethod |
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| 299 | @user_logger |
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| 300 | def on_delete(req, resp, id_): |
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| 301 | admin_control(req) |
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| 302 | if not id_.isdigit() or int(id_) <= 0: |
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| 303 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 304 | description='API.INVALID_SENSOR_ID') |
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| 305 | |||
| 306 | cnx = mysql.connector.connect(**config.myems_system_db) |
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| 307 | cursor = cnx.cursor() |
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| 308 | |||
| 309 | cursor.execute(" SELECT name " |
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| 310 | " FROM tbl_sensors " |
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| 311 | " WHERE id = %s ", (id_,)) |
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| 312 | if cursor.fetchone() is None: |
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| 313 | cursor.close() |
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| 314 | cnx.close() |
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| 315 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
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| 316 | description='API.SENSOR_NOT_FOUND') |
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| 317 | |||
| 318 | # check relation with spaces |
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| 319 | cursor.execute(" SELECT id " |
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| 320 | " FROM tbl_spaces_sensors " |
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| 321 | " WHERE sensor_id = %s ", (id_,)) |
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| 322 | rows_spaces = cursor.fetchall() |
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| 323 | if rows_spaces is not None and len(rows_spaces) > 0: |
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| 324 | cursor.close() |
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| 325 | cnx.close() |
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| 326 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 327 | title='API.BAD_REQUEST', |
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| 328 | description='API.THERE_IS_RELATION_WITH_SPACES') |
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| 329 | |||
| 330 | # check relation with tenants |
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| 331 | cursor.execute(" SELECT id " |
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| 332 | " FROM tbl_tenants_sensors " |
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| 333 | " WHERE sensor_id = %s ", (id_,)) |
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| 334 | rows_tenants = cursor.fetchall() |
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| 335 | if rows_tenants is not None and len(rows_tenants) > 0: |
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| 336 | cursor.close() |
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| 337 | cnx.close() |
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| 338 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 339 | title='API.BAD_REQUEST', |
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| 340 | description='API.THERE_IS_RELATION_WITH_TENANTS') |
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| 341 | |||
| 342 | # check relation with stores |
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| 343 | cursor.execute(" SELECT store_id " |
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| 344 | " FROM tbl_stores_sensors " |
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| 345 | " WHERE sensor_id = %s ", (id_,)) |
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| 346 | rows_stores = cursor.fetchall() |
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| 347 | if rows_stores is not None and len(rows_stores) > 0: |
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| 348 | cursor.close() |
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| 349 | cnx.close() |
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| 350 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 351 | title='API.BAD_REQUEST', |
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| 352 | description='API.THERE_IS_RELATION_WITH_STORES') |
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| 353 | |||
| 354 | # check relation with microgrid |
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| 355 | cursor.execute(" SELECT id " |
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| 356 | " FROM tbl_microgrids_sensors " |
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| 357 | " WHERE sensor_id = %s ", (id_,)) |
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| 358 | rows_microgrid = cursor.fetchall() |
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| 359 | if rows_microgrid is not None and len(rows_microgrid) > 0: |
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| 360 | cursor.close() |
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| 361 | cnx.close() |
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| 362 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 363 | title='API.BAD_REQUEST', |
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| 364 | description='API.THERE_IS_RELATION_WITH_MICROGRIDS') |
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| 365 | |||
| 366 | # check relation with shopfloors |
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| 367 | cursor.execute(" SELECT id " |
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| 368 | " FROM tbl_shopfloors_sensors " |
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| 369 | " WHERE sensor_id = %s ", (id_,)) |
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| 370 | rows_shopfloor = cursor.fetchall() |
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| 371 | if rows_shopfloor is not None and len(rows_shopfloor) > 0: |
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| 372 | cursor.close() |
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| 373 | cnx.close() |
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| 374 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 375 | title='API.BAD_REQUEST', |
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| 376 | description='API.THERE_IS_RELATION_WITH_SHOPFLOORS') |
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| 377 | |||
| 378 | # delete relation with points |
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| 379 | cursor.execute(" DELETE FROM tbl_sensors_points WHERE sensor_id = %s ", (id_,)) |
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| 380 | |||
| 381 | cursor.execute(" DELETE FROM tbl_sensors WHERE id = %s ", (id_,)) |
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| 382 | cnx.commit() |
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| 383 | |||
| 384 | cursor.close() |
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| 385 | cnx.close() |
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| 386 | |||
| 387 | # Clear cache after deleting sensor |
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| 388 | clear_sensor_cache(sensor_id=id_) |
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| 389 | |||
| 390 | resp.status = falcon.HTTP_204 |
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| 391 | |||
| 392 | View Code Duplication | @staticmethod |
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| 393 | @user_logger |
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| 394 | def on_put(req, resp, id_): |
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| 395 | """Handles PUT requests""" |
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| 396 | admin_control(req) |
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| 397 | try: |
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| 398 | raw_json = req.stream.read().decode('utf-8') |
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| 399 | except UnicodeDecodeError as ex: |
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| 400 | print("Failed to decode request") |
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| 401 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 402 | title='API.BAD_REQUEST', |
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| 403 | description='API.INVALID_ENCODING') |
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| 404 | except Exception as ex: |
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| 405 | print("Unexpected error reading request stream") |
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| 406 | raise falcon.HTTPError(status=falcon.HTTP_400, |
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| 407 | title='API.BAD_REQUEST', |
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| 408 | description='API.FAILED_TO_READ_REQUEST_STREAM') |
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| 409 | |||
| 410 | if not id_.isdigit() or int(id_) <= 0: |
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| 411 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 412 | description='API.INVALID_SENSOR_ID') |
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| 413 | |||
| 414 | new_values = json.loads(raw_json) |
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| 415 | |||
| 416 | if 'name' not in new_values['data'].keys() or \ |
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| 417 | not isinstance(new_values['data']['name'], str) or \ |
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| 418 | len(str.strip(new_values['data']['name'])) == 0: |
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| 419 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 420 | description='API.INVALID_SENSOR_NAME') |
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| 421 | name = str.strip(new_values['data']['name']) |
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| 422 | |||
| 423 | if 'description' in new_values['data'].keys() and \ |
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| 424 | new_values['data']['description'] is not None and \ |
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| 425 | len(str(new_values['data']['description'])) > 0: |
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| 426 | description = str.strip(new_values['data']['description']) |
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| 427 | else: |
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| 428 | description = None |
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| 429 | |||
| 430 | cnx = mysql.connector.connect(**config.myems_system_db) |
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| 431 | cursor = cnx.cursor() |
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| 432 | |||
| 433 | cursor.execute(" SELECT name " |
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| 434 | " FROM tbl_sensors " |
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| 435 | " WHERE id = %s ", (id_,)) |
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| 436 | if cursor.fetchone() is None: |
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| 437 | cursor.close() |
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| 438 | cnx.close() |
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| 439 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
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| 440 | description='API.SENSOR_NOT_FOUND') |
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| 441 | |||
| 442 | cursor.execute(" SELECT name " |
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| 443 | " FROM tbl_sensors " |
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| 444 | " WHERE name = %s AND id != %s ", (name, id_)) |
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| 445 | if cursor.fetchone() is not None: |
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| 446 | cursor.close() |
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| 447 | cnx.close() |
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| 448 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
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| 449 | description='API.SENSOR_NAME_IS_ALREADY_IN_USE') |
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| 450 | |||
| 451 | update_row = (" UPDATE tbl_sensors " |
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| 452 | " SET name = %s, description = %s " |
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| 453 | " WHERE id = %s ") |
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| 454 | cursor.execute(update_row, (name, |
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| 455 | description, |
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| 456 | id_,)) |
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| 457 | cnx.commit() |
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| 458 | |||
| 459 | cursor.close() |
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| 460 | cnx.close() |
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| 461 | |||
| 462 | # Clear cache after updating sensor |
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| 463 | clear_sensor_cache(sensor_id=id_) |
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| 464 | |||
| 465 | resp.status = falcon.HTTP_200 |
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| 466 | |||
| 467 | |||
| 468 | class SensorPointCollection: |
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| 469 | def __init__(self): |
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| 470 | pass |
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| 471 | |||
| 472 | @staticmethod |
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| 473 | def on_options(req, resp, id_): |
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| 474 | _ = req |
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| 475 | resp.status = falcon.HTTP_200 |
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| 476 | _ = id_ |
||
| 477 | |||
| 478 | View Code Duplication | @staticmethod |
|
| 479 | def on_get(req, resp, id_): |
||
| 480 | if 'API-KEY' not in req.headers or \ |
||
| 481 | not isinstance(req.headers['API-KEY'], str) or \ |
||
| 482 | len(str.strip(req.headers['API-KEY'])) == 0: |
||
| 483 | access_control(req) |
||
| 484 | else: |
||
| 485 | api_key_control(req) |
||
| 486 | if not id_.isdigit() or int(id_) <= 0: |
||
| 487 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 488 | description='API.INVALID_SENSOR_ID') |
||
| 489 | |||
| 490 | # Redis cache key |
||
| 491 | cache_key = f'sensor:point:{id_}' |
||
| 492 | cache_expire = 28800 # 8 hours in seconds (long-term cache) |
||
| 493 | |||
| 494 | # Try to get from Redis cache (only if Redis is enabled) |
||
| 495 | redis_client = None |
||
| 496 | if config.redis.get('is_enabled', False): |
||
| 497 | try: |
||
| 498 | redis_client = redis.Redis( |
||
| 499 | host=config.redis['host'], |
||
| 500 | port=config.redis['port'], |
||
| 501 | password=config.redis['password'] if config.redis['password'] else None, |
||
| 502 | db=config.redis['db'], |
||
| 503 | decode_responses=True, |
||
| 504 | socket_connect_timeout=2, |
||
| 505 | socket_timeout=2 |
||
| 506 | ) |
||
| 507 | redis_client.ping() |
||
| 508 | cached_result = redis_client.get(cache_key) |
||
| 509 | if cached_result: |
||
| 510 | resp.text = cached_result |
||
| 511 | return |
||
| 512 | except Exception: |
||
| 513 | # If Redis connection fails, continue to database query |
||
| 514 | pass |
||
| 515 | |||
| 516 | # Cache miss or Redis error - query database |
||
| 517 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 518 | cursor = cnx.cursor() |
||
| 519 | |||
| 520 | cursor.execute(" SELECT name " |
||
| 521 | " FROM tbl_sensors " |
||
| 522 | " WHERE id = %s ", (id_,)) |
||
| 523 | if cursor.fetchone() is None: |
||
| 524 | cursor.close() |
||
| 525 | cnx.close() |
||
| 526 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 527 | description='API.SENSOR_NOT_FOUND') |
||
| 528 | |||
| 529 | query = (" SELECT p.id, p.name, " |
||
| 530 | " ds.id, ds.name, ds.uuid, " |
||
| 531 | " p.address " |
||
| 532 | " FROM tbl_points p, tbl_sensors_points sp, tbl_data_sources ds " |
||
| 533 | " WHERE sp.sensor_id = %s AND p.id = sp.point_id AND p.data_source_id = ds.id " |
||
| 534 | " ORDER BY p.name ") |
||
| 535 | cursor.execute(query, (id_,)) |
||
| 536 | rows = cursor.fetchall() |
||
| 537 | |||
| 538 | result = list() |
||
| 539 | if rows is not None and len(rows) > 0: |
||
| 540 | for row in rows: |
||
| 541 | meta_result = {"id": row[0], "name": row[1], |
||
| 542 | "data_source": {"id": row[2], "name": row[3], "uuid": row[4]}, |
||
| 543 | "address": row[5]} |
||
| 544 | result.append(meta_result) |
||
| 545 | |||
| 546 | cursor.close() |
||
| 547 | cnx.close() |
||
| 548 | |||
| 549 | # Store result in Redis cache |
||
| 550 | result_json = json.dumps(result) |
||
| 551 | if redis_client: |
||
| 552 | try: |
||
| 553 | redis_client.setex(cache_key, cache_expire, result_json) |
||
| 554 | except Exception: |
||
| 555 | # If cache set fails, ignore and continue |
||
| 556 | pass |
||
| 557 | |||
| 558 | resp.text = result_json |
||
| 559 | |||
| 560 | View Code Duplication | @staticmethod |
|
| 561 | @user_logger |
||
| 562 | def on_post(req, resp, id_): |
||
| 563 | """Handles POST requests""" |
||
| 564 | admin_control(req) |
||
| 565 | try: |
||
| 566 | raw_json = req.stream.read().decode('utf-8') |
||
| 567 | except UnicodeDecodeError as ex: |
||
| 568 | print("Failed to decode request") |
||
| 569 | raise falcon.HTTPError(status=falcon.HTTP_400, |
||
| 570 | title='API.BAD_REQUEST', |
||
| 571 | description='API.INVALID_ENCODING') |
||
| 572 | except Exception as ex: |
||
| 573 | print("Unexpected error reading request stream") |
||
| 574 | raise falcon.HTTPError(status=falcon.HTTP_400, |
||
| 575 | title='API.BAD_REQUEST', |
||
| 576 | description='API.FAILED_TO_READ_REQUEST_STREAM') |
||
| 577 | |||
| 578 | if not id_.isdigit() or int(id_) <= 0: |
||
| 579 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 580 | description='API.INVALID_SENSOR_ID') |
||
| 581 | |||
| 582 | new_values = json.loads(raw_json) |
||
| 583 | |||
| 584 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 585 | cursor = cnx.cursor() |
||
| 586 | |||
| 587 | cursor.execute(" SELECT name " |
||
| 588 | " from tbl_sensors " |
||
| 589 | " WHERE id = %s ", (id_,)) |
||
| 590 | if cursor.fetchone() is None: |
||
| 591 | cursor.close() |
||
| 592 | cnx.close() |
||
| 593 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 594 | description='API.SENSOR_NOT_FOUND') |
||
| 595 | |||
| 596 | cursor.execute(" SELECT name " |
||
| 597 | " FROM tbl_points " |
||
| 598 | " WHERE id = %s ", (new_values['data']['point_id'],)) |
||
| 599 | if cursor.fetchone() is None: |
||
| 600 | cursor.close() |
||
| 601 | cnx.close() |
||
| 602 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 603 | description='API.POINT_NOT_FOUND') |
||
| 604 | |||
| 605 | query = (" SELECT id " |
||
| 606 | " FROM tbl_sensors_points " |
||
| 607 | " WHERE sensor_id = %s AND point_id = %s") |
||
| 608 | cursor.execute(query, (id_, new_values['data']['point_id'],)) |
||
| 609 | if cursor.fetchone() is not None: |
||
| 610 | cursor.close() |
||
| 611 | cnx.close() |
||
| 612 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.ERROR', |
||
| 613 | description='API.SENSOR_POINT_RELATION_EXISTS') |
||
| 614 | |||
| 615 | add_row = (" INSERT INTO tbl_sensors_points (sensor_id, point_id) " |
||
| 616 | " VALUES (%s, %s) ") |
||
| 617 | cursor.execute(add_row, (id_, new_values['data']['point_id'],)) |
||
| 618 | cnx.commit() |
||
| 619 | cursor.close() |
||
| 620 | cnx.close() |
||
| 621 | |||
| 622 | # Clear cache after adding sensor point |
||
| 623 | clear_sensor_cache(sensor_id=id_) |
||
| 624 | |||
| 625 | resp.status = falcon.HTTP_201 |
||
| 626 | resp.location = '/sensors/' + str(id_) + '/points/' + str(new_values['data']['point_id']) |
||
| 627 | |||
| 628 | |||
| 629 | class SensorPointItem: |
||
| 630 | def __init__(self): |
||
| 631 | pass |
||
| 632 | |||
| 633 | @staticmethod |
||
| 634 | def on_options(req, resp, id_, pid): |
||
| 635 | _ = req |
||
| 636 | resp.status = falcon.HTTP_200 |
||
| 637 | _ = id_ |
||
| 638 | |||
| 639 | @staticmethod |
||
| 640 | @user_logger |
||
| 641 | def on_delete(req, resp, id_, pid): |
||
| 642 | admin_control(req) |
||
| 643 | if not id_.isdigit() or int(id_) <= 0: |
||
| 644 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 645 | description='API.INVALID_SENSOR_ID') |
||
| 646 | |||
| 647 | if not pid.isdigit() or int(pid) <= 0: |
||
| 648 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 649 | description='API.INVALID_POINT_ID') |
||
| 650 | |||
| 651 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 652 | cursor = cnx.cursor() |
||
| 653 | |||
| 654 | cursor.execute(" SELECT name " |
||
| 655 | " FROM tbl_sensors " |
||
| 656 | " WHERE id = %s ", (id_,)) |
||
| 657 | if cursor.fetchone() is None: |
||
| 658 | cursor.close() |
||
| 659 | cnx.close() |
||
| 660 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 661 | description='API.SENSOR_NOT_FOUND') |
||
| 662 | |||
| 663 | cursor.execute(" SELECT name " |
||
| 664 | " FROM tbl_points " |
||
| 665 | " WHERE id = %s ", (pid,)) |
||
| 666 | if cursor.fetchone() is None: |
||
| 667 | cursor.close() |
||
| 668 | cnx.close() |
||
| 669 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 670 | description='API.POINT_NOT_FOUND') |
||
| 671 | |||
| 672 | cursor.execute(" SELECT id " |
||
| 673 | " FROM tbl_sensors_points " |
||
| 674 | " WHERE sensor_id = %s AND point_id = %s ", (id_, pid)) |
||
| 675 | if cursor.fetchone() is None: |
||
| 676 | cursor.close() |
||
| 677 | cnx.close() |
||
| 678 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 679 | description='API.SENSOR_POINT_RELATION_NOT_FOUND') |
||
| 680 | |||
| 681 | cursor.execute(" DELETE FROM tbl_sensors_points WHERE sensor_id = %s AND point_id = %s ", (id_, pid)) |
||
| 682 | cnx.commit() |
||
| 683 | |||
| 684 | cursor.close() |
||
| 685 | cnx.close() |
||
| 686 | |||
| 687 | # Clear cache after deleting sensor point |
||
| 688 | clear_sensor_cache(sensor_id=id_) |
||
| 689 | |||
| 690 | resp.status = falcon.HTTP_204 |
||
| 691 | |||
| 692 | |||
| 693 | class SensorExport: |
||
| 694 | def __init__(self): |
||
| 695 | pass |
||
| 696 | |||
| 697 | @staticmethod |
||
| 698 | def on_options(req, resp, id_): |
||
| 699 | _ = req |
||
| 700 | resp.status = falcon.HTTP_200 |
||
| 701 | _ = id_ |
||
| 702 | |||
| 703 | @staticmethod |
||
| 704 | def on_get(req, resp, id_): |
||
| 705 | if 'API-KEY' not in req.headers or \ |
||
| 706 | not isinstance(req.headers['API-KEY'], str) or \ |
||
| 707 | len(str.strip(req.headers['API-KEY'])) == 0: |
||
| 708 | access_control(req) |
||
| 709 | else: |
||
| 710 | api_key_control(req) |
||
| 711 | if not id_.isdigit() or int(id_) <= 0: |
||
| 712 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 713 | description='API.INVALID_SENSOR_ID') |
||
| 714 | |||
| 715 | # Redis cache key |
||
| 716 | cache_key = f'sensor:export:{id_}' |
||
| 717 | cache_expire = 28800 # 8 hours in seconds (long-term cache) |
||
| 718 | |||
| 719 | # Try to get from Redis cache (only if Redis is enabled) |
||
| 720 | redis_client = None |
||
| 721 | if config.redis.get('is_enabled', False): |
||
| 722 | try: |
||
| 723 | redis_client = redis.Redis( |
||
| 724 | host=config.redis['host'], |
||
| 725 | port=config.redis['port'], |
||
| 726 | password=config.redis['password'] if config.redis['password'] else None, |
||
| 727 | db=config.redis['db'], |
||
| 728 | decode_responses=True, |
||
| 729 | socket_connect_timeout=2, |
||
| 730 | socket_timeout=2 |
||
| 731 | ) |
||
| 732 | redis_client.ping() |
||
| 733 | cached_result = redis_client.get(cache_key) |
||
| 734 | if cached_result: |
||
| 735 | resp.text = cached_result |
||
| 736 | return |
||
| 737 | except Exception: |
||
| 738 | # If Redis connection fails, continue to database query |
||
| 739 | pass |
||
| 740 | |||
| 741 | # Cache miss or Redis error - query database |
||
| 742 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 743 | cursor = cnx.cursor() |
||
| 744 | |||
| 745 | query = (" SELECT id, name, uuid, description " |
||
| 746 | " FROM tbl_sensors " |
||
| 747 | " WHERE id = %s ") |
||
| 748 | cursor.execute(query, (id_,)) |
||
| 749 | row = cursor.fetchone() |
||
| 750 | |||
| 751 | View Code Duplication | if row is None: |
|
| 752 | cursor.close() |
||
| 753 | cnx.close() |
||
| 754 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 755 | description='API.SENSOR_NOT_FOUND') |
||
| 756 | else: |
||
| 757 | meta_result = {"id": row[0], |
||
| 758 | "name": row[1], |
||
| 759 | "uuid": row[2], |
||
| 760 | "description": row[3], |
||
| 761 | "points": None} |
||
| 762 | query = (" SELECT p.id, p.name " |
||
| 763 | " FROM tbl_points p, tbl_sensors_points sp " |
||
| 764 | " WHERE sp.sensor_id = %s AND p.id = sp.point_id " |
||
| 765 | " ORDER BY p.id ") |
||
| 766 | cursor.execute(query, (id_,)) |
||
| 767 | rows = cursor.fetchall() |
||
| 768 | result = list() |
||
| 769 | if rows is not None and len(rows) > 0: |
||
| 770 | for row in rows: |
||
| 771 | point_result = {"id": row[0], "name": row[1]} |
||
| 772 | result.append(point_result) |
||
| 773 | meta_result['points'] = result |
||
| 774 | cursor.close() |
||
| 775 | cnx.close() |
||
| 776 | |||
| 777 | # Store result in Redis cache |
||
| 778 | result_json = json.dumps(meta_result) |
||
| 779 | if redis_client: |
||
| 780 | try: |
||
| 781 | redis_client.setex(cache_key, cache_expire, result_json) |
||
| 782 | except Exception: |
||
| 783 | # If cache set fails, ignore and continue |
||
| 784 | pass |
||
| 785 | |||
| 786 | resp.text = result_json |
||
| 787 | |||
| 788 | |||
| 789 | class SensorImport: |
||
| 790 | def __init__(self): |
||
| 791 | pass |
||
| 792 | |||
| 793 | @staticmethod |
||
| 794 | def on_options(req, resp): |
||
| 795 | _ = req |
||
| 796 | resp.status = falcon.HTTP_200 |
||
| 797 | |||
| 798 | @staticmethod |
||
| 799 | @user_logger |
||
| 800 | def on_post(req, resp): |
||
| 801 | """Handles POST requests""" |
||
| 802 | admin_control(req) |
||
| 803 | try: |
||
| 804 | raw_json = req.stream.read().decode('utf-8') |
||
| 805 | except UnicodeDecodeError as ex: |
||
| 806 | print("Failed to decode request") |
||
| 807 | raise falcon.HTTPError(status=falcon.HTTP_400, |
||
| 808 | title='API.BAD_REQUEST', |
||
| 809 | description='API.INVALID_ENCODING') |
||
| 810 | except Exception as ex: |
||
| 811 | print("Unexpected error reading request stream") |
||
| 812 | raise falcon.HTTPError(status=falcon.HTTP_400, |
||
| 813 | title='API.BAD_REQUEST', |
||
| 814 | description='API.FAILED_TO_READ_REQUEST_STREAM') |
||
| 815 | |||
| 816 | new_values = json.loads(raw_json) |
||
| 817 | |||
| 818 | if 'name' not in new_values.keys() or \ |
||
| 819 | not isinstance(new_values['name'], str) or \ |
||
| 820 | len(str.strip(new_values['name'])) == 0: |
||
| 821 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 822 | description='API.INVALID_SENSOR_NAME') |
||
| 823 | name = str.strip(new_values['name']) |
||
| 824 | |||
| 825 | if 'description' in new_values.keys() and \ |
||
| 826 | new_values['description'] is not None and \ |
||
| 827 | len(str(new_values['description'])) > 0: |
||
| 828 | description = str.strip(new_values['description']) |
||
| 829 | else: |
||
| 830 | description = None |
||
| 831 | |||
| 832 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 833 | cursor = cnx.cursor() |
||
| 834 | |||
| 835 | cursor.execute(" SELECT name " |
||
| 836 | " FROM tbl_sensors " |
||
| 837 | " WHERE name = %s ", (name,)) |
||
| 838 | if cursor.fetchone() is not None: |
||
| 839 | cursor.close() |
||
| 840 | cnx.close() |
||
| 841 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 842 | description='API.SENSOR_NAME_IS_ALREADY_IN_USE') |
||
| 843 | |||
| 844 | add_values = (" INSERT INTO tbl_sensors " |
||
| 845 | " (name, uuid, description) " |
||
| 846 | " VALUES (%s, %s, %s) ") |
||
| 847 | cursor.execute(add_values, (name, |
||
| 848 | str(uuid.uuid4()), |
||
| 849 | description)) |
||
| 850 | new_id = cursor.lastrowid |
||
| 851 | if 'points' in new_values.keys() and \ |
||
| 852 | new_values['points'] is not None and \ |
||
| 853 | len(new_values['points']) > 0: |
||
| 854 | for point in new_values['points']: |
||
| 855 | if 'id' in point and isinstance(point['id'], int): |
||
| 856 | cursor.execute(" SELECT name " |
||
| 857 | " FROM tbl_points " |
||
| 858 | " WHERE id = %s ", (point['id'],)) |
||
| 859 | if cursor.fetchone() is None: |
||
| 860 | cursor.close() |
||
| 861 | cnx.close() |
||
| 862 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 863 | description='API.POINT_NOT_FOUND') |
||
| 864 | |||
| 865 | add_row = (" INSERT INTO tbl_sensors_points (sensor_id, point_id) " |
||
| 866 | " VALUES (%s, %s) ") |
||
| 867 | cursor.execute(add_row, (new_id, point['id'],)) |
||
| 868 | else: |
||
| 869 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND', |
||
| 870 | description='API.INVALID_POINT_ID') |
||
| 871 | cnx.commit() |
||
| 872 | cursor.close() |
||
| 873 | cnx.close() |
||
| 874 | |||
| 875 | # Clear cache after importing sensor |
||
| 876 | clear_sensor_cache() |
||
| 877 | |||
| 878 | resp.status = falcon.HTTP_201 |
||
| 879 | resp.location = '/sensors/' + str(new_id) |
||
| 880 | |||
| 881 | |||
| 882 | class SensorClone: |
||
| 883 | |||
| 884 | def __init__(self): |
||
| 885 | pass |
||
| 886 | |||
| 887 | @staticmethod |
||
| 888 | def on_options(req, resp, id_): |
||
| 889 | _ = req |
||
| 890 | resp.status = falcon.HTTP_200 |
||
| 891 | _ = id_ |
||
| 892 | |||
| 893 | @staticmethod |
||
| 894 | @user_logger |
||
| 895 | def on_post(req, resp, id_): |
||
| 896 | admin_control(req) |
||
| 897 | if not id_.isdigit() or int(id_) <= 0: |
||
| 898 | raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST', |
||
| 899 | description='API.INVALID_SENSOR_ID') |
||
| 900 | |||
| 901 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
| 902 | cursor = cnx.cursor() |
||
| 903 | |||
| 904 | query = (" SELECT id, name, uuid, description " |
||
| 905 | " FROM tbl_sensors " |
||
| 906 | " WHERE id = %s ") |
||
| 907 | cursor.execute(query, (id_,)) |
||
| 908 | row = cursor.fetchone() |
||
| 909 | View Code Duplication | if row is None: |
|
| 910 | cursor.close() |
||
| 911 | cnx.close() |
||
| 912 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 913 | description='API.SENSOR_NOT_FOUND') |
||
| 914 | else: |
||
| 915 | meta_result = {"id": row[0], |
||
| 916 | "name": row[1], |
||
| 917 | "uuid": row[2], |
||
| 918 | "description": row[3], |
||
| 919 | "points": None} |
||
| 920 | |||
| 921 | query = (" SELECT p.id, p.name " |
||
| 922 | " FROM tbl_points p, tbl_sensors_points sp " |
||
| 923 | " WHERE sp.sensor_id = %s AND p.id = sp.point_id " |
||
| 924 | " ORDER BY p.id ") |
||
| 925 | cursor.execute(query, (id_,)) |
||
| 926 | rows = cursor.fetchall() |
||
| 927 | result = list() |
||
| 928 | if rows is not None and len(rows) > 0: |
||
| 929 | for row in rows: |
||
| 930 | point_result = {"id": row[0], "name": row[1]} |
||
| 931 | result.append(point_result) |
||
| 932 | meta_result['points'] = result |
||
| 933 | timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6]) |
||
| 934 | if config.utc_offset[0] == '-': |
||
| 935 | timezone_offset = -timezone_offset |
||
| 936 | new_name = (str.strip(meta_result['name']) + |
||
| 937 | (datetime.utcnow() + timedelta(minutes=timezone_offset)).isoformat(sep='-', timespec='seconds')) |
||
| 938 | |||
| 939 | add_values = (" INSERT INTO tbl_sensors " |
||
| 940 | " (name, uuid, description) " |
||
| 941 | " VALUES (%s, %s, %s) ") |
||
| 942 | cursor.execute(add_values, (new_name, |
||
| 943 | str(uuid.uuid4()), |
||
| 944 | meta_result['description'])) |
||
| 945 | new_id = cursor.lastrowid |
||
| 946 | if meta_result['points'] is not None and len(meta_result['points']) > 0: |
||
| 947 | for point in meta_result['points']: |
||
| 948 | cursor.execute(" SELECT name " |
||
| 949 | " FROM tbl_points " |
||
| 950 | " WHERE id = %s ", (point['id'],)) |
||
| 951 | if cursor.fetchone() is None: |
||
| 952 | cursor.close() |
||
| 953 | cnx.close() |
||
| 954 | raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND', |
||
| 955 | description='API.POINT_NOT_FOUND') |
||
| 956 | |||
| 957 | add_row = (" INSERT INTO tbl_sensors_points (sensor_id, point_id) " |
||
| 958 | " VALUES (%s, %s) ") |
||
| 959 | cursor.execute(add_row, (new_id, point['id'],)) |
||
| 960 | |||
| 961 | cnx.commit() |
||
| 962 | cursor.close() |
||
| 963 | cnx.close() |
||
| 964 | |||
| 965 | # Clear cache after cloning sensor |
||
| 966 | clear_sensor_cache() |
||
| 967 | |||
| 968 | resp.status = falcon.HTTP_201 |
||
| 969 | resp.location = '/sensors/' + str(new_id) |
||
| 970 |
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