myems-api/core/energyflowdiagram.py
import uuid
from datetime import datetime, timedelta
import falcon
import mysql.connector
import simplejson as json
from core.useractivity import user_logger, admin_control, access_control, api_key_control
import config
class EnergyFlowDiagramCollection:
def __init__(self):
""""Initializes EnergyFlowDiagramCollection"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, energy_flow_diagram_id, name "
" FROM tbl_energy_flow_diagrams_nodes")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
node_list_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = row[2]
if node_list_dict.get(row[1]) is None:
node_list_dict[row[1]] = list()
node_list_dict[row[1]].append({"id": row[0], "name": row[2]})
query = (" SELECT id, energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links")
cursor.execute(query)
rows_links = cursor.fetchall()
link_list_dict = dict()
if rows_links is not None and len(rows_links) > 0:
for row in rows_links:
# find meter by uuid
meter = meter_dict.get(row[4], None)
if meter is None:
meter = virtual_meter_dict.get(row[4], None)
if meter is None:
meter = offline_meter_dict.get(row[4], None)
if link_list_dict.get(row[1]) is None:
link_list_dict[row[1]] = list()
link_list_dict[row[1]].append({"id": row[0],
"source_node": {
"id": row[2],
"name": node_dict.get(row[2])},
"target_node": {
"id": row[3],
"name": node_dict.get(row[3])},
"meter": meter})
query = (" SELECT id, name, uuid "
" FROM tbl_energy_flow_diagrams "
" ORDER BY id ")
cursor.execute(query)
rows_energy_flow_diagrams = cursor.fetchall()
result = list()
if rows_energy_flow_diagrams is not None and len(rows_energy_flow_diagrams) > 0:
for row in rows_energy_flow_diagrams:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"nodes": node_list_dict.get(row[0], None),
"links": link_list_dict.get(row[0], None), }
result.append(meta_result)
cursor.close()
cnx.close()
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NAME')
name = str.strip(new_values['data']['name'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE name = %s ", (name,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NAME_IS_ALREADY_IN_USE')
add_values = (" INSERT INTO tbl_energy_flow_diagrams "
" (name, uuid) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (name,
str(uuid.uuid4())))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/energyflowdiagrams/' + str(new_id)
class EnergyFlowDiagramItem:
def __init__(self):
""""Initializes EnergyFlowDiagramItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, energy_flow_diagram_id, name "
" FROM tbl_energy_flow_diagrams_nodes")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
node_list_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = row[2]
if node_list_dict.get(row[1]) is None:
node_list_dict[row[1]] = list()
node_list_dict[row[1]].append({"id": row[0], "name": row[2]})
query = (" SELECT id, energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links")
cursor.execute(query)
rows_links = cursor.fetchall()
link_list_dict = dict()
if rows_links is not None and len(rows_links) > 0:
for row in rows_links:
# find meter by uuid
meter = meter_dict.get(row[4], None)
if meter is None:
meter = virtual_meter_dict.get(row[4], None)
if meter is None:
meter = offline_meter_dict.get(row[4], None)
if link_list_dict.get(row[1]) is None:
link_list_dict[row[1]] = list()
link_list_dict[row[1]].append({"id": row[0],
"source_node": {
"id": row[2],
"name": node_dict.get(row[2])},
"target_node": {
"id": row[3],
"name": node_dict.get(row[3])},
"meter": meter})
query = (" SELECT id, name, uuid "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
else:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"nodes": node_list_dict.get(row[0], None),
"links": link_list_dict.get(row[0], None),
}
resp.text = json.dumps(meta_result)
@staticmethod
@user_logger
def on_delete(req, resp, id_):
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
# delete all associated nodes
cursor.execute(" DELETE FROM tbl_energy_flow_diagrams_nodes"
" WHERE energy_flow_diagram_id = %s ", (id_,))
cnx.commit()
# delete all associated links
cursor.execute(" DELETE FROM tbl_energy_flow_diagrams_links"
" WHERE energy_flow_diagram_id = %s ", (id_,))
cnx.commit()
cursor.execute(" DELETE FROM tbl_energy_flow_diagrams"
" WHERE id = %s ", (id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204
@staticmethod
@user_logger
def on_put(req, resp, id_):
"""Handles PUT requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NAME')
name = str.strip(new_values['data']['name'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE name = %s AND id != %s ", (name, id_))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NAME_IS_ALREADY_IN_USE')
update_row = (" UPDATE tbl_energy_flow_diagrams "
" SET name = %s "
" WHERE id = %s ")
cursor.execute(update_row, (name,
id_))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200
class EnergyFlowDiagramLinkCollection:
def __init__(self):
""""Initializes EnergyFlowDiagramLinkCollection"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes ")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = {"id": row[0],
"name": row[1]}
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
query = (" SELECT id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s "
" ORDER BY id ")
cursor.execute(query, (id_, ))
rows_links = cursor.fetchall()
result = list()
if rows_links is not None and len(rows_links) > 0:
for row in rows_links:
source_node = node_dict.get(row[1], None)
target_node = node_dict.get(row[2], None)
# find meter by uuid
meter = meter_dict.get(row[3], None)
if meter is None:
meter = virtual_meter_dict.get(row[3], None)
if meter is None:
meter = offline_meter_dict.get(row[3], None)
meta_result = {"id": row[0],
"source_node": source_node,
"target_node": target_node,
"meter": meter}
result.append(meta_result)
cursor.close()
cnx.close()
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp, id_):
"""Handles POST requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
source_node_id = None
if 'source_node_id' in new_values['data'].keys():
if new_values['data']['source_node_id'] is not None and \
new_values['data']['source_node_id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_SOURCE_NODE_ID')
source_node_id = new_values['data']['source_node_id']
target_node_id = None
if 'target_node_id' in new_values['data'].keys():
if new_values['data']['target_node_id'] is not None and \
new_values['data']['target_node_id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_TARGET_NODE_ID')
target_node_id = new_values['data']['target_node_id']
meter_uuid = None
if 'meter_uuid' in new_values['data'].keys():
if new_values['data']['meter_uuid'] is not None and \
isinstance(new_values['data']['meter_uuid'], str) and \
len(str.strip(new_values['data']['meter_uuid'])) > 0:
meter_uuid = str.strip(new_values['data']['meter_uuid'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND "
" source_node_id = %s AND target_node_id = %s ",
(id_, source_node_id, target_node_id,))
row = cursor.fetchone()
if row is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_IS_ALREADY_IN_USE')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (source_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.SOURCE_NODE_NOT_FOUND')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (target_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.TARGET_NODE_NOT_FOUND')
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
# validate meter uuid
if meter_dict.get(meter_uuid) is None and \
virtual_meter_dict.get(meter_uuid) is None and \
offline_meter_dict.get(meter_uuid) is None:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_METER_UUID')
add_values = (" INSERT INTO tbl_energy_flow_diagrams_links "
" (energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid) "
" VALUES (%s, %s, %s, %s) ")
cursor.execute(add_values, (id_,
source_node_id,
target_node_id,
meter_uuid))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/energyflowdiagrams/' + str(id_) + 'links/' + str(new_id)
class EnergyFlowDiagramLinkItem:
def __init__(self):
""""Initializes EnergyFlowDiagramLinkItem"""
pass
@staticmethod
def on_options(req, resp, id_, lid):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_, lid):
access_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not lid.isdigit() or int(lid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_LINK_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes ")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = {"id": row[0],
"name": row[1]}
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND id = %s ")
cursor.execute(query, (id_, lid))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_NOT_FOUND_OR_NOT_MATCH')
else:
source_node = node_dict.get(row[1], None)
target_node = node_dict.get(row[2], None)
# find meter by uuid
meter = meter_dict.get(row[3], None)
if meter is None:
meter = virtual_meter_dict.get(row[3], None)
if meter is None:
meter = offline_meter_dict.get(row[3], None)
meta_result = {"id": row[0],
"source_node": source_node,
"target_node": target_node,
"meter": meter}
resp.text = json.dumps(meta_result)
@staticmethod
@user_logger
def on_delete(req, resp, id_, lid):
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not lid.isdigit() or int(lid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_LINK_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ",
(id_,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND id = %s ",
(id_, lid,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_NOT_FOUND_OR_NOT_MATCH')
cursor.execute(" DELETE FROM tbl_energy_flow_diagrams_links "
" WHERE id = %s ", (lid, ))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204
@staticmethod
@user_logger
def on_put(req, resp, id_, lid):
"""Handles PUT requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not lid.isdigit() or int(lid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_LINK_ID')
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
source_node_id = None
if 'source_node_id' in new_values['data'].keys():
if new_values['data']['source_node_id'] is not None and \
new_values['data']['source_node_id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_SOURCE_NODE_ID')
source_node_id = new_values['data']['source_node_id']
target_node_id = None
if 'target_node_id' in new_values['data'].keys():
if new_values['data']['target_node_id'] is not None and \
new_values['data']['target_node_id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_TARGET_NODE_ID')
target_node_id = new_values['data']['target_node_id']
meter_uuid = None
if 'meter_uuid' in new_values['data'].keys():
if new_values['data']['meter_uuid'] is not None and \
isinstance(new_values['data']['meter_uuid'], str) and \
len(str.strip(new_values['data']['meter_uuid'])) > 0:
meter_uuid = str.strip(new_values['data']['meter_uuid'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND id = %s ",
(id_, lid,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_NOT_FOUND_OR_NOT_MATCH')
cursor.execute(" SELECT id "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND id != %s "
" AND source_node_id = %s AND target_node_id = %s ",
(id_, lid, source_node_id, target_node_id,))
row = cursor.fetchone()
if row is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_IS_ALREADY_IN_USE')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (source_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.SOURCE_NODE_NOT_FOUND')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (target_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.TARGET_NODE_NOT_FOUND')
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
# validate meter uuid
if meter_dict.get(meter_uuid) is None and \
virtual_meter_dict.get(meter_uuid) is None and \
offline_meter_dict.get(meter_uuid) is None:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_METER_UUID')
add_values = (" UPDATE tbl_energy_flow_diagrams_links "
" SET source_node_id = %s, target_node_id = %s, meter_uuid = %s "
" WHERE id = %s ")
cursor.execute(add_values, (source_node_id,
target_node_id,
meter_uuid,
lid))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200
class EnergyFlowDiagramNodeCollection:
def __init__(self):
""""Initializes EnergyFlowDiagramNodeCollection"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE energy_flow_diagram_id = %s "
" ORDER BY id ")
cursor.execute(query, (id_, ))
rows_nodes = cursor.fetchall()
result = list()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
meta_result = {"id": row[0],
"name": row[1]}
result.append(meta_result)
cursor.close()
cnx.close()
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp, id_):
"""Handles POST requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_NAME')
name = str.strip(new_values['data']['name'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE name = %s AND energy_flow_diagram_id = %s ", (name, id_))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NAME_IS_ALREADY_IN_USE')
add_values = (" INSERT INTO tbl_energy_flow_diagrams_nodes "
" (energy_flow_diagram_id, name) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (id_,
name))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/energyflowdiagrams/' + str(id_) + 'nodes/' + str(new_id)
class EnergyFlowDiagramNodeItem:
def __init__(self):
""""Initializes EnergyFlowDiagramNodeItem"""
pass
@staticmethod
def on_options(req, resp, id_, nid):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_, nid):
access_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not nid.isdigit() or int(nid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE energy_flow_diagram_id = %s AND id = %s ")
cursor.execute(query, (id_, nid))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NODE_NOT_FOUND_OR_NOT_MATCH')
else:
meta_result = {"id": row[0],
"name": row[1]}
resp.text = json.dumps(meta_result)
@staticmethod
@user_logger
def on_delete(req, resp, id_, nid):
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not nid.isdigit() or int(nid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ",
(id_,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE energy_flow_diagram_id = %s AND id = %s ",
(id_, nid,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NODE_NOT_FOUND_OR_NOT_MATCH')
cursor.execute(" DELETE FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ", (nid, ))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204
@staticmethod
@user_logger
def on_put(req, resp, id_, nid):
"""Handles PUT requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
if not nid.isdigit() or int(nid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_ID')
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_NAME')
name = str.strip(new_values['data']['name'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE energy_flow_diagram_id = %s AND id = %s ",
(id_, nid,))
row = cursor.fetchone()
if row is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NODE_NOT_FOUND_OR_NOT_MATCH')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE name = %s AND energy_flow_diagram_id = %s AND id != %s ", (name, id_, nid))
row = cursor.fetchone()
if row is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NODE_NAME_IS_ALREADY_IN_USE')
add_values = (" UPDATE tbl_energy_flow_diagrams_nodes "
" SET name = %s "
" WHERE id = %s ")
cursor.execute(add_values, (name,
nid))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200
class EnergyFlowDiagramExport:
def __init__(self):
""""Initializes EnergyFlowDiagramExport"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, energy_flow_diagram_id, name "
" FROM tbl_energy_flow_diagrams_nodes")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
node_list_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = row[2]
if node_list_dict.get(row[1]) is None:
node_list_dict[row[1]] = list()
node_list_dict[row[1]].append({"id": row[0], "name": row[2]})
query = (" SELECT id, energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links")
cursor.execute(query)
rows_links = cursor.fetchall()
link_list_dict = dict()
if rows_links is not None and len(rows_links) > 0:
for row in rows_links:
# find meter by uuid
meter = meter_dict.get(row[4], None)
if meter is None:
meter = virtual_meter_dict.get(row[4], None)
if meter is None:
meter = offline_meter_dict.get(row[4], None)
if link_list_dict.get(row[1]) is None:
link_list_dict[row[1]] = list()
link_list_dict[row[1]].append({"id": row[0],
"source_node": {
"id": row[2],
"name": node_dict.get(row[2])},
"target_node": {
"id": row[3],
"name": node_dict.get(row[3])},
"meter": meter})
query = (" SELECT id, name, uuid "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
else:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"nodes": node_list_dict.get(row[0], None),
"links": link_list_dict.get(row[0], None),
}
resp.text = json.dumps(meta_result)
class EnergyFlowDiagramImport:
def __init__(self):
""""Initializes EnergyFlowDiagramImport"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
@user_logger
def on_post(req, resp):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values.keys() or \
not isinstance(new_values['name'], str) or \
len(str.strip(new_values['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NAME')
name = str.strip(new_values['name'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE name = %s ", (name,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NAME_IS_ALREADY_IN_USE')
add_values = (" INSERT INTO tbl_energy_flow_diagrams "
" (name, uuid) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (name,
str(uuid.uuid4())))
new_id = cursor.lastrowid
for node in new_values['nodes']:
if 'name' not in node.keys() or \
not isinstance(node['name'], str) or \
len(str.strip(node['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_NODE_NAME')
name = str.strip(node['name'])
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (new_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE name = %s AND energy_flow_diagram_id = %s ", (name, new_id))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.ENERGY_FLOW_DIAGRAM_NAME_IS_ALREADY_IN_USE')
add_values = (" INSERT INTO tbl_energy_flow_diagrams_nodes "
" (energy_flow_diagram_id, name) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (new_id,
name))
for link in new_values['links']:
source_node_id = None
if 'id' in link['source_node'].keys():
if link['source_node']['id'] is not None and \
link['source_node']['id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_SOURCE_NODE_ID')
source_node_id = link['source_node']['id']
target_node_id = None
if 'id' in link['target_node'].keys():
if link['target_node']['id'] is not None and \
link['target_node']['id'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_TARGET_NODE_ID')
target_node_id = link['target_node']['id']
meter_uuid = None
if 'uuid' in link['meter'].keys():
if link['meter']['uuid'] is not None and \
isinstance(link['meter']['uuid'], str) and \
len(str.strip(link['meter']['uuid'])) > 0:
meter_uuid = str.strip(link['meter']['uuid'])
cursor.execute(" SELECT name "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ", (new_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_energy_flow_diagrams_links "
" WHERE energy_flow_diagram_id = %s AND "
" source_node_id = %s AND target_node_id = %s ",
(new_id, source_node_id, target_node_id,))
row = cursor.fetchone()
if row is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_LINK_IS_ALREADY_IN_USE')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (source_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.SOURCE_NODE_NOT_FOUND')
query = (" SELECT id, name "
" FROM tbl_energy_flow_diagrams_nodes "
" WHERE id = %s ")
cursor.execute(query, (target_node_id,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.TARGET_NODE_NOT_FOUND')
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
# validate meter uuid
if meter_dict.get(meter_uuid) is None and \
virtual_meter_dict.get(meter_uuid) is None and \
offline_meter_dict.get(meter_uuid) is None:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_METER_UUID')
add_values = (" INSERT INTO tbl_energy_flow_diagrams_links "
" (energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid) "
" VALUES (%s, %s, %s, %s) ")
cursor.execute(add_values, (new_id,
source_node_id,
target_node_id,
meter_uuid))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/energyflowdiagrams/' + str(new_id)
class EnergyFlowDiagramClone:
def __init__(self):
""""Initializes EnergyFlowDiagramClone"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
@user_logger
def on_post(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid "
" FROM tbl_meters ")
cursor.execute(query)
rows_meters = cursor.fetchall()
meter_dict = dict()
if rows_meters is not None and len(rows_meters) > 0:
for row in rows_meters:
meter_dict[row[2]] = {"type": 'meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_offline_meters ")
cursor.execute(query)
rows_offline_meters = cursor.fetchall()
offline_meter_dict = dict()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
for row in rows_offline_meters:
offline_meter_dict[row[2]] = {"type": 'offline_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, name, uuid "
" FROM tbl_virtual_meters ")
cursor.execute(query)
rows_virtual_meters = cursor.fetchall()
virtual_meter_dict = dict()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
for row in rows_virtual_meters:
virtual_meter_dict[row[2]] = {"type": 'virtual_meter',
"id": row[0],
"name": row[1],
"uuid": row[2]}
query = (" SELECT id, energy_flow_diagram_id, name "
" FROM tbl_energy_flow_diagrams_nodes")
cursor.execute(query)
rows_nodes = cursor.fetchall()
node_dict = dict()
node_list_dict = dict()
if rows_nodes is not None and len(rows_nodes) > 0:
for row in rows_nodes:
node_dict[row[0]] = row[2]
if node_list_dict.get(row[1]) is None:
node_list_dict[row[1]] = list()
node_list_dict[row[1]].append({"id": row[0], "name": row[2]})
query = (" SELECT id, energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid "
" FROM tbl_energy_flow_diagrams_links")
cursor.execute(query)
rows_links = cursor.fetchall()
link_list_dict = dict()
if rows_links is not None and len(rows_links) > 0:
for row in rows_links:
# find meter by uuid
meter = meter_dict.get(row[4], None)
if meter is None:
meter = virtual_meter_dict.get(row[4], None)
if meter is None:
meter = offline_meter_dict.get(row[4], None)
if link_list_dict.get(row[1]) is None:
link_list_dict[row[1]] = list()
link_list_dict[row[1]].append({"id": row[0],
"source_node": {
"id": row[2],
"name": node_dict.get(row[2])},
"target_node": {
"id": row[3],
"name": node_dict.get(row[3])},
"meter": meter})
query = (" SELECT id, name, uuid "
" FROM tbl_energy_flow_diagrams "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND')
else:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"nodes": node_list_dict.get(row[0], None),
"links": link_list_dict.get(row[0], None),
}
timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
if config.utc_offset[0] == '-':
timezone_offset = -timezone_offset
new_name = (str.strip(meta_result['name'])
+ (datetime.now()
+ timedelta(minutes=timezone_offset)).isoformat(sep='-', timespec='seconds'))
add_values = (" INSERT INTO tbl_energy_flow_diagrams "
" (name, uuid) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (new_name,
str(uuid.uuid4())))
new_id = cursor.lastrowid
if meta_result['nodes'] is not None and len(meta_result['nodes']) > 0:
for node in meta_result['nodes']:
add_values = (" INSERT INTO tbl_energy_flow_diagrams_nodes "
" (energy_flow_diagram_id, name) "
" VALUES (%s, %s) ")
cursor.execute(add_values, (new_id,
node['name']))
if meta_result['links'] is not None and len(meta_result['links']) > 0:
for link in meta_result['links']:
if link['meter'] is None:
continue
add_values = (" INSERT INTO tbl_energy_flow_diagrams_links "
" (energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid) "
" VALUES (%s, %s, %s, %s) ")
cursor.execute(add_values, (new_id,
link['source_node']['id'],
link['target_node']['id'],
link['meter']['uuid']))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/energyflowdiagrams/' + str(new_id)