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import falcon |
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import simplejson as json |
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import mysql.connector |
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from datetime import datetime, timedelta, timezone |
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from core import utilities |
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from decimal import Decimal |
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import config |
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class Reporting: |
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@staticmethod |
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def __init__(): |
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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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#################################################################################################################### |
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# PROCEDURES |
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# Step 1: valid parameters |
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# Step 2: query the energy flor diagram |
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# Step 3: query nodes |
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# Step 4: query links |
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# Step 5: query reporting period meter energy input |
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# Step 6: query reporting period offline meter energy input |
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# Step 7: query reporting period virtual energy input |
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# Step 8: construct the report |
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#################################################################################################################### |
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@staticmethod |
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def on_get(req, resp): |
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print(req.params) |
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energy_flow_diagram_id = req.params.get('energyflowdiagramid') |
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reporting_start_datetime_local = req.params.get('reportingperiodstartdatetime') |
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reporting_end_datetime_local = req.params.get('reportingperiodenddatetime') |
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################################################################################################################ |
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# Step 1: valid parameters |
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################################################################################################################ |
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if energy_flow_diagram_id is None: |
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raise falcon.HTTPError(falcon.HTTP_400, |
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title='API.BAD_REQUEST', |
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description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID') |
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else: |
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energy_flow_diagram_id = str.strip(energy_flow_diagram_id) |
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if not energy_flow_diagram_id.isdigit() or int(energy_flow_diagram_id) <= 0: |
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raise falcon.HTTPError(falcon.HTTP_400, |
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title='API.BAD_REQUEST', |
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description='API.INVALID_ENERGY_FLOW_DIAGRAM_ID') |
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timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6]) |
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if config.utc_offset[0] == '-': |
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timezone_offset = -timezone_offset |
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if reporting_start_datetime_local is None: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
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description="API.INVALID_REPORTING_PERIOD_START_DATETIME") |
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else: |
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reporting_start_datetime_local = str.strip(reporting_start_datetime_local) |
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try: |
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reporting_start_datetime_utc = datetime.strptime(reporting_start_datetime_local, |
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'%Y-%m-%dT%H:%M:%S').replace(tzinfo=timezone.utc) - \ |
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timedelta(minutes=timezone_offset) |
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except ValueError: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
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description="API.INVALID_REPORTING_PERIOD_START_DATETIME") |
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if reporting_end_datetime_local is None: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
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description="API.INVALID_REPORTING_PERIOD_END_DATETIME") |
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else: |
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reporting_end_datetime_local = str.strip(reporting_end_datetime_local) |
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try: |
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reporting_end_datetime_utc = datetime.strptime(reporting_end_datetime_local, |
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'%Y-%m-%dT%H:%M:%S').replace(tzinfo=timezone.utc) - \ |
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timedelta(minutes=timezone_offset) |
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except ValueError: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
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description="API.INVALID_REPORTING_PERIOD_END_DATETIME") |
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if reporting_start_datetime_utc >= reporting_end_datetime_utc: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
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description='API.INVALID_REPORTING_PERIOD_END_DATETIME') |
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################################################################################################################ |
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# Step 2: query the energy flow diagram |
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################################################################################################################ |
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cnx_system = mysql.connector.connect(**config.myems_system_db) |
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cursor_system = cnx_system.cursor(dictionary=True) |
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query = (" SELECT name, uuid " |
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" FROM tbl_energy_flow_diagrams " |
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" WHERE id = %s ") |
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cursor_system.execute(query, (energy_flow_diagram_id,)) |
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row = cursor_system.fetchone() |
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if row is None: |
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if cursor_system: |
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cursor_system.close() |
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if cnx_system: |
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cnx_system.disconnect() |
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
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description='API.ENERGY_FLOW_DIAGRAM_NOT_FOUND') |
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else: |
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energy_flow_diagram_name = row['name'] |
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energy_flow_diagram_uuid = row['uuid'] |
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################################################################################################################ |
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# Step 3: query nodes |
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################################################################################################################ |
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query = (" SELECT id, energy_flow_diagram_id, name " |
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" FROM tbl_energy_flow_diagrams_nodes") |
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cursor_system.execute(query) |
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rows_nodes = cursor_system.fetchall() |
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node_dict = dict() |
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node_list_dict = dict() |
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if rows_nodes is not None and len(rows_nodes) > 0: |
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for row in rows_nodes: |
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node_dict[row['id']] = row['name'] |
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if node_list_dict.get(row['energy_flow_diagram_id']) is None: |
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node_list_dict[row['energy_flow_diagram_id']] = list() |
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node_list_dict[row['energy_flow_diagram_id']].append({"id": row['id'], "name": row['name']}) |
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################################################################################################################ |
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# Step 4: query links |
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################################################################################################################ |
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query = (" SELECT id, name, uuid " |
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" FROM tbl_meters ") |
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cursor_system.execute(query) |
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rows_meters = cursor_system.fetchall() |
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meter_dict = dict() |
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if rows_meters is not None and len(rows_meters) > 0: |
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for row in rows_meters: |
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meter_dict[row['uuid']] = {"type": 'meter', |
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"id": row['id'], |
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"name": row['name'], |
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"uuid": row['uuid']} |
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query = (" SELECT id, name, uuid " |
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" FROM tbl_offline_meters ") |
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cursor_system.execute(query) |
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rows_offline_meters = cursor_system.fetchall() |
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offline_meter_dict = dict() |
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if rows_offline_meters is not None and len(rows_offline_meters) > 0: |
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for row in rows_offline_meters: |
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offline_meter_dict[row['uuid']] = {"type": 'offline_meter', |
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"id": row['id'], |
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"name": row['name'], |
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"uuid": row['uuid']} |
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query = (" SELECT id, name, uuid " |
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" FROM tbl_virtual_meters ") |
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cursor_system.execute(query) |
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rows_virtual_meters = cursor_system.fetchall() |
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virtual_meter_dict = dict() |
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if rows_virtual_meters is not None and len(rows_virtual_meters) > 0: |
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for row in rows_virtual_meters: |
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virtual_meter_dict[row['uuid']] = {"type": 'virtual_meter', |
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"id": row['id'], |
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"name": row['name'], |
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"uuid": row['uuid']} |
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query = (" SELECT id, energy_flow_diagram_id, source_node_id, target_node_id, meter_uuid " |
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" FROM tbl_energy_flow_diagrams_links") |
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cursor_system.execute(query) |
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rows_links = cursor_system.fetchall() |
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link_list_dict = dict() |
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View Code Duplication |
if rows_links is not None and len(rows_links) > 0: |
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for row in rows_links: |
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# find meter by uuid |
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meter = meter_dict.get(row['meter_uuid'], None) |
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if meter is None: |
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meter = virtual_meter_dict.get(row['meter_uuid'], None) |
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if meter is None: |
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meter = offline_meter_dict.get(row['meter_uuid'], None) |
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if link_list_dict.get(row['energy_flow_diagram_id']) is None: |
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link_list_dict[row['energy_flow_diagram_id']] = list() |
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link_list_dict[row['energy_flow_diagram_id']].append({"id": row['id'], |
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"source_node": { |
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"id": row['source_node_id'], |
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"name": node_dict.get(row['source_node_id'])}, |
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"target_node": { |
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"id": row['target_node_id'], |
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"name": node_dict.get(row['target_node_id'])}, |
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"meter": meter, |
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"value": None}) |
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meta_result = {"id": energy_flow_diagram_id, |
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"name": energy_flow_diagram_name, |
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"uuid": energy_flow_diagram_uuid, |
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"nodes": node_list_dict.get(int(energy_flow_diagram_id), None), |
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"links": link_list_dict.get(int(energy_flow_diagram_id), None), |
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} |
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print(meta_result) |
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if cursor_system: |
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cursor_system.close() |
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if cnx_system: |
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cnx_system.disconnect() |
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################################################################################################################ |
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# Step 5: query reporting period meter energy input |
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################################################################################################################ |
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cnx_energy = mysql.connector.connect(**config.myems_energy_db) |
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cursor_energy = cnx_energy.cursor() |
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for x in range(len(meta_result['links'])): |
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if meta_result['links'][x] is None or meta_result['links'][x]['meter'] is None: |
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continue |
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if meta_result['links'][x]['meter']['type'] == 'meter': |
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query = (" SELECT SUM(actual_value) " |
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" FROM tbl_meter_hourly " |
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" WHERE meter_id = %s " |
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" AND start_datetime_utc >= %s " |
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" AND start_datetime_utc < %s ") |
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cursor_energy.execute(query, (meta_result['links'][x]['meter']['id'], |
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reporting_start_datetime_utc, |
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reporting_end_datetime_utc)) |
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row = cursor_energy.fetchone() |
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if row is not None: |
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meta_result['links'][x]['value'] = row[0] |
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elif meta_result['links'][x]['meter']['type'] == 'offline_meter': |
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query = (" SELECT SUM(actual_value) " |
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" FROM tbl_offline_meter_hourly " |
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" WHERE meter_id = %s " |
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" AND start_datetime_utc >= %s " |
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" AND start_datetime_utc < %s ") |
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cursor_energy.execute(query, (meta_result['links'][x]['meter']['id'], |
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reporting_start_datetime_utc, |
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reporting_end_datetime_utc)) |
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row = cursor_energy.fetchone() |
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if row is not None: |
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meta_result['links'][x]['value'] = row[0] |
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elif meta_result['links'][x]['meter']['type'] == 'virtual_meter': |
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query = (" SELECT SUM(actual_value) " |
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" FROM tbl_virtual_meter_hourly " |
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" WHERE meter_id = %s " |
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" AND start_datetime_utc >= %s " |
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" AND start_datetime_utc < %s ") |
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cursor_energy.execute(query, (meta_result['links'][x]['meter']['id'], |
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reporting_start_datetime_utc, |
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reporting_end_datetime_utc)) |
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row = cursor_energy.fetchone() |
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if row is not None: |
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meta_result['links'][x]['value'] = row[0] |
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################################################################################################################ |
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# Step 8: construct the report |
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################################################################################################################ |
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result = {'nodes': list(), |
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'links': list()} |
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if meta_result['nodes'] is not None and len(meta_result['nodes']) > 0: |
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for node in meta_result['nodes']: |
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result['nodes'].append({'name': node['name']}) |
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if meta_result['links'] is not None and len(meta_result['links']) > 0: |
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for link in meta_result['links']: |
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result['links'].append({'source': link['source_node']['name'], |
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'target': link['target_node']['name'], |
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'value': link['value']}) |
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resp.body = json.dumps(result) |
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