436 lines
16 KiB
Python
436 lines
16 KiB
Python
import falcon
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import simplejson as json
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import mysql.connector
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import config
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import uuid
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from core.useractivity import user_logger
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class SensorCollection:
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@staticmethod
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def __init__():
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""""Initializes SensorCollection"""
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pass
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@staticmethod
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def on_options(req, resp):
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_get(req, resp):
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor(dictionary=True)
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query = (" SELECT id, name, uuid, description "
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" FROM tbl_sensors "
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" ORDER BY id ")
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cursor.execute(query)
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rows_sensors = cursor.fetchall()
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result = list()
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if rows_sensors is not None and len(rows_sensors) > 0:
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for row in rows_sensors:
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meta_result = {"id": row['id'],
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"name": row['name'],
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"uuid": row['uuid'],
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"description": row['description']}
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result.append(meta_result)
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cursor.close()
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cnx.disconnect()
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resp.text = json.dumps(result)
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@staticmethod
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@user_logger
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def on_post(req, resp):
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"""Handles POST requests"""
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try:
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raw_json = req.stream.read().decode('utf-8')
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except Exception as ex:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR', description=ex)
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new_values = json.loads(raw_json)
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if 'name' not in new_values['data'].keys() or \
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not isinstance(new_values['data']['name'], str) or \
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len(str.strip(new_values['data']['name'])) == 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_NAME')
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name = str.strip(new_values['data']['name'])
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if 'description' in new_values['data'].keys() and \
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new_values['data']['description'] is not None and \
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len(str(new_values['data']['description'])) > 0:
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description = str.strip(new_values['data']['description'])
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else:
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description = None
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE name = %s ", (name,))
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if cursor.fetchone() is not None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.BAD_REQUEST',
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description='API.SENSOR_NAME_IS_ALREADY_IN_USE')
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add_values = (" INSERT INTO tbl_sensors "
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" (name, uuid, description) "
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" VALUES (%s, %s, %s) ")
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cursor.execute(add_values, (name,
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str(uuid.uuid4()),
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description))
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new_id = cursor.lastrowid
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cnx.commit()
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cursor.close()
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cnx.disconnect()
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resp.status = falcon.HTTP_201
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resp.location = '/sensors/' + str(new_id)
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class SensorItem:
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@staticmethod
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def __init__():
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""""Initializes SensorItem"""
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pass
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@staticmethod
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def on_options(req, resp, id_):
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_get(req, resp, id_):
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor(dictionary=True)
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query = (" SELECT id, name, uuid, description "
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" FROM tbl_sensors "
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" WHERE id = %s ")
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cursor.execute(query, (id_,))
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row = cursor.fetchone()
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cursor.close()
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cnx.disconnect()
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if row is None:
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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else:
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meta_result = {"id": row['id'],
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"name": row['name'],
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"uuid": row['uuid'],
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"description": row['description']}
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resp.text = json.dumps(meta_result)
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@staticmethod
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@user_logger
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def on_delete(req, resp, id_):
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE id = %s ", (id_,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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# check relation with spaces
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cursor.execute(" SELECT id "
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" FROM tbl_spaces_sensors "
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" WHERE sensor_id = %s ", (id_,))
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rows_spaces = cursor.fetchall()
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if rows_spaces is not None and len(rows_spaces) > 0:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400,
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title='API.BAD_REQUEST',
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description='API.THERE_IS_RELATION_WITH_SPACES')
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# check relation with tenants
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cursor.execute(" SELECT id "
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" FROM tbl_tenants_sensors "
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" WHERE sensor_id = %s ", (id_,))
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rows_tenants = cursor.fetchall()
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if rows_tenants is not None and len(rows_tenants) > 0:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400,
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title='API.BAD_REQUEST',
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description='API.THERE_IS_RELATION_WITH_TENANTS')
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# check relation with stores
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cursor.execute(" SELECT store_id "
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" FROM tbl_stores_sensors "
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" WHERE sensor_id = %s ", (id_,))
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rows_stores = cursor.fetchall()
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if rows_stores is not None and len(rows_stores) > 0:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400,
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title='API.BAD_REQUEST',
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description='API.THERE_IS_RELATION_WITH_STORES')
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# check relation with points
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cursor.execute(" SELECT id "
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" FROM tbl_sensors_points "
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" WHERE sensor_id = %s ", (id_,))
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rows_points = cursor.fetchall()
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if rows_points is not None and len(rows_points) > 0:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400,
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title='API.BAD_REQUEST',
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description='API.THERE_IS_RELATION_WITH_POINTS')
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cursor.execute(" DELETE FROM tbl_sensors WHERE id = %s ", (id_,))
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cnx.commit()
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cursor.close()
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cnx.disconnect()
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resp.status = falcon.HTTP_204
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@staticmethod
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@user_logger
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def on_put(req, resp, id_):
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"""Handles PUT requests"""
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try:
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raw_json = req.stream.read().decode('utf-8')
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except Exception as ex:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.EXCEPTION', description=ex)
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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new_values = json.loads(raw_json)
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if 'name' not in new_values['data'].keys() or \
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not isinstance(new_values['data']['name'], str) or \
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len(str.strip(new_values['data']['name'])) == 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_NAME')
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name = str.strip(new_values['data']['name'])
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if 'description' in new_values['data'].keys() and \
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new_values['data']['description'] is not None and \
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len(str(new_values['data']['description'])) > 0:
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description = str.strip(new_values['data']['description'])
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else:
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description = None
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE id = %s ", (id_,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE name = %s AND id != %s ", (name, id_))
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if cursor.fetchone() is not None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.BAD_REQUEST',
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description='API.SENSOR_NAME_IS_ALREADY_IN_USE')
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update_row = (" UPDATE tbl_sensors "
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" SET name = %s, description = %s "
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" WHERE id = %s ")
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cursor.execute(update_row, (name,
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description,
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id_,))
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cnx.commit()
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cursor.close()
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cnx.disconnect()
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resp.status = falcon.HTTP_200
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class SensorPointCollection:
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@staticmethod
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def __init__():
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""""Initializes SensorPointCollection"""
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pass
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@staticmethod
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def on_options(req, resp, id_):
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_get(req, resp, id_):
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE id = %s ", (id_,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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query = (" SELECT p.id, p.name, "
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" ds.id, ds.name, ds.uuid, "
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" p.address "
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" FROM tbl_points p, tbl_sensors_points sp, tbl_data_sources ds "
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" WHERE sp.sensor_id = %s AND p.id = sp.point_id AND p.data_source_id = ds.id "
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" ORDER BY p.name ")
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cursor.execute(query, (id_,))
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rows = cursor.fetchall()
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result = list()
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if rows is not None and len(rows) > 0:
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for row in rows:
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meta_result = {"id": row[0], "name": row[1],
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"data_source": {"id": row[2], "name": row[3], "uuid": row[4]},
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"address": row[5]}
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result.append(meta_result)
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resp.text = json.dumps(result)
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@staticmethod
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@user_logger
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def on_post(req, resp, id_):
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"""Handles POST requests"""
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try:
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raw_json = req.stream.read().decode('utf-8')
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except Exception as ex:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.EXCEPTION', description=ex)
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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new_values = json.loads(raw_json)
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" from tbl_sensors "
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" WHERE id = %s ", (id_,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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cursor.execute(" SELECT name "
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" FROM tbl_points "
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" WHERE id = %s ", (new_values['data']['point_id'],))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.POINT_NOT_FOUND')
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query = (" SELECT id "
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" FROM tbl_sensors_points "
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" WHERE sensor_id = %s AND point_id = %s")
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cursor.execute(query, (id_, new_values['data']['point_id'],))
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if cursor.fetchone() is not None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
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description='API.SENSOR_POINT_RELATION_EXISTS')
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add_row = (" INSERT INTO tbl_sensors_points (sensor_id, point_id) "
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" VALUES (%s, %s) ")
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cursor.execute(add_row, (id_, new_values['data']['point_id'],))
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new_id = cursor.lastrowid
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cnx.commit()
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cursor.close()
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cnx.disconnect()
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resp.status = falcon.HTTP_201
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resp.location = '/sensors/' + str(id_) + '/points/' + str(new_values['data']['point_id'])
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class SensorPointItem:
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@staticmethod
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def __init__():
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""""Initializes SensorPointItem"""
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pass
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@staticmethod
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def on_options(req, resp, id_, pid):
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resp.status = falcon.HTTP_200
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@staticmethod
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@user_logger
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def on_delete(req, resp, id_, pid):
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SENSOR_ID')
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if not pid.isdigit() or int(pid) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_POINT_ID')
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cnx = mysql.connector.connect(**config.myems_system_db)
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cursor = cnx.cursor()
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cursor.execute(" SELECT name "
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" FROM tbl_sensors "
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" WHERE id = %s ", (id_,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_NOT_FOUND')
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cursor.execute(" SELECT name "
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" FROM tbl_points "
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" WHERE id = %s ", (pid,))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.POINT_NOT_FOUND')
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cursor.execute(" SELECT id "
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" FROM tbl_sensors_points "
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" WHERE sensor_id = %s AND point_id = %s ", (id_, pid))
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if cursor.fetchone() is None:
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cursor.close()
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.SENSOR_POINT_RELATION_NOT_FOUND')
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cursor.execute(" DELETE FROM tbl_sensors_points WHERE sensor_id = %s AND point_id = %s ", (id_, pid))
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cnx.commit()
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cursor.close()
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cnx.disconnect()
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resp.status = falcon.HTTP_204
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