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philippe thomy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| """QualiCharge prefect indicators: usage. | ||
| C2: Energy cumulate by operator. | ||
| """ | ||
|
|
||
| from string import Template | ||
| from typing import List | ||
| from uuid import UUID | ||
|
|
||
| import numpy as np | ||
| import pandas as pd # type: ignore | ||
| from prefect import flow, runtime, task | ||
| from prefect.futures import wait | ||
| from prefect.task_runners import ThreadPoolTaskRunner | ||
| from sqlalchemy.engine import Connection | ||
|
|
||
| from ..conf import settings | ||
| from ..models import Indicator, IndicatorTimeSpan, Level | ||
| from ..utils import ( | ||
| export_indic, | ||
| get_database_engine, | ||
| get_num_for_level_query_params, | ||
| get_targets_for_level, | ||
| get_timespan_filter_query_params, | ||
| ) | ||
|
|
||
| SESSIONS_BY_OPERATOR_QUERY_TEMPLATE = """ | ||
| SELECT | ||
| sum(energy) / 1000.0 AS value, | ||
| nom_operateur AS category, | ||
| $level_id AS level_id | ||
| FROM | ||
| Session | ||
| INNER JOIN statique ON point_de_charge_id = pdc_id | ||
| LEFT JOIN City ON City.code = code_insee_commune | ||
| $join_extras | ||
| WHERE | ||
| $timespan | ||
| AND $level_id IN ($indexes) | ||
| GROUP BY | ||
| category, | ||
| $level_id | ||
| """ | ||
|
|
||
| QUERY_NATIONAL_TEMPLATE = """ | ||
| SELECT | ||
| sum(energy) / 1000.0 AS value, | ||
| nom_operateur AS category | ||
| FROM | ||
| SESSION | ||
| INNER JOIN statique ON point_de_charge_id = pdc_id | ||
| WHERE | ||
| $timespan | ||
| GROUP BY | ||
| category | ||
| """ | ||
|
|
||
|
|
||
| @task(task_run_name="values-for-target-{level:02d}") | ||
| def get_values_for_targets( | ||
| connection: Connection, | ||
| level: Level, | ||
| timespan: IndicatorTimeSpan, | ||
| indexes: List[UUID], | ||
| ) -> pd.DataFrame: | ||
| """Fetch sessions given input level, timestamp and target index.""" | ||
| query_template = Template(SESSIONS_BY_OPERATOR_QUERY_TEMPLATE) | ||
| query_params = {"indexes": ",".join(f"'{i}'" for i in map(str, indexes))} | ||
| query_params |= get_num_for_level_query_params(level) | ||
| query_params |= get_timespan_filter_query_params(timespan, session=True) | ||
| return pd.read_sql_query(query_template.substitute(query_params), con=connection) | ||
|
|
||
|
|
||
| @flow( | ||
| task_runner=ThreadPoolTaskRunner(max_workers=settings.THREAD_POOL_MAX_WORKERS), | ||
| flow_run_name="c2-{timespan.period.value}-{level:02d}-{timespan.start:%y-%m-%d}", | ||
| ) | ||
| def c2_for_level( | ||
| level: Level, | ||
| timespan: IndicatorTimeSpan, | ||
| chunk_size=settings.DEFAULT_CHUNK_SIZE, | ||
| ) -> pd.DataFrame: | ||
| """Calculate c2 for a level and a timestamp.""" | ||
| if level == Level.NATIONAL: | ||
| return c2_national(timespan) | ||
| engine = get_database_engine() | ||
| with engine.connect() as connection: | ||
| targets = get_targets_for_level(connection, level) | ||
| ids = targets["id"] | ||
| chunks = ( | ||
| np.array_split(ids, int(len(ids) / chunk_size)) | ||
| if len(ids) > chunk_size | ||
| else [ids.to_numpy()] | ||
| ) | ||
| futures = [ | ||
| get_values_for_targets.submit(connection, level, timespan, chunk) # type: ignore[call-overload] | ||
| for chunk in chunks | ||
| ] | ||
| wait(futures) | ||
|
|
||
| # Concatenate results and serialize indicators | ||
| results = pd.concat([future.result() for future in futures], ignore_index=True) | ||
| merged = targets.merge(results, how="left", left_on="id", right_on="level_id") | ||
|
|
||
| # Build result DataFrame | ||
| indicators = { | ||
| "target": merged["code"], | ||
| "value": merged["value"].fillna(0), | ||
| "code": "c2", | ||
| "level": level, | ||
| "period": timespan.period, | ||
| "timestamp": timespan.start.isoformat(), | ||
| "category": merged["category"].astype("str"), | ||
| "extras": None, | ||
| } | ||
| return pd.DataFrame(indicators) | ||
|
|
||
|
|
||
| @flow( | ||
| task_runner=ThreadPoolTaskRunner(max_workers=settings.THREAD_POOL_MAX_WORKERS), | ||
| flow_run_name="c2-{timespan.period.value}-00-{timespan.start:%y-%m-%d}", | ||
| ) | ||
| def c2_national(timespan: IndicatorTimeSpan) -> pd.DataFrame: | ||
| """Calculate c2 at the national level.""" | ||
| engine = get_database_engine() | ||
| query_template = Template(QUERY_NATIONAL_TEMPLATE) | ||
| query_params = get_timespan_filter_query_params(timespan, session=True) | ||
| with engine.connect() as connection: | ||
| res = pd.read_sql_query(query_template.substitute(query_params), con=connection) | ||
| indicators = { | ||
| "target": None, | ||
| "value": res["value"].fillna(0), | ||
| "code": "c2", | ||
| "level": Level.NATIONAL, | ||
| "period": timespan.period, | ||
| "timestamp": timespan.start.isoformat(), | ||
| "category": res["category"].astype("str"), | ||
| "extras": None, | ||
| } | ||
| return pd.DataFrame(indicators) | ||
|
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||
|
|
||
| @flow( | ||
| task_runner=ThreadPoolTaskRunner(max_workers=settings.THREAD_POOL_MAX_WORKERS), | ||
| flow_run_name="meta-c2-{timespan.period.value}", | ||
| ) | ||
| def calculate( | ||
| timespan: IndicatorTimeSpan, | ||
| levels: List[Level], | ||
| create_artifact: bool = False, | ||
| chunk_size: int = 1000, | ||
| format_pd: bool = False, | ||
| ) -> List[Indicator]: | ||
| """Run all c2 subflows.""" | ||
| subflows_results = [ | ||
| c2_for_level(level, timespan, chunk_size=chunk_size) for level in levels | ||
| ] | ||
| indicators = pd.concat(subflows_results, ignore_index=True) | ||
| description = f"c2 report at {timespan.start} (period: {timespan.period.value})" | ||
| flow_name = runtime.flow_run.name | ||
| return export_indic(indicators, create_artifact, flow_name, description, format_pd) |
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