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flights_impact_data_dag.py
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flights_impact_data_dag.py
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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from airflow import DAG
from airflow.providers.google.cloud.transfers import gcs_to_bigquery
default_args = {
"owner": "Google",
"depends_on_past": False,
"start_date": "2021-01-09",
}
with DAG(
dag_id="travel_impact_model.flights_impact_data",
default_args=default_args,
max_active_runs=1,
schedule_interval="0 15 * * *",
catchup=False,
default_view="graph",
) as dag:
# Task to load CSV data to a BigQuery table
flights_impact_data_gcs_to_bq = gcs_to_bigquery.GCSToBigQueryOperator(
task_id="flights_impact_data_gcs_to_bq",
bucket="{{ var.json.travel_impact_model.source_bucket }}",
source_objects=["flights_impact_data.csv"],
source_format="CSV",
destination_project_dataset_table="travel_impact_model.flights_impact_data",
skip_leading_rows=1,
write_disposition="WRITE_TRUNCATE",
schema_fields=[
{
"name": "carrier",
"type": "STRING",
"mode": "REQUIRED",
"description": "IATA code of the airline operating the flight",
},
{
"name": "flight_number",
"type": "STRING",
"mode": "REQUIRED",
"description": "Flight number assigned by the operating airline",
},
{
"name": "departure_date",
"type": "DATE",
"mode": "REQUIRED",
"description": "Departure date of the flight",
},
{
"name": "origin",
"type": "STRING",
"mode": "REQUIRED",
"description": "IATA airport code of the origin",
},
{
"name": "destination",
"type": "STRING",
"mode": "REQUIRED",
"description": "IATA airport code of the destination",
},
{
"name": "economy_emissions_grams_per_pax",
"type": "INTEGER",
"mode": "REQUIRED",
"description": "Estimated emissions in grams for one passenger in economy cabin",
},
{
"name": "premium_economy_emissions_grams_per_pax",
"type": "INTEGER",
"mode": "REQUIRED",
"description": "Estimated emissions in grams for one passenger in premium economy cabin",
},
{
"name": "business_emissions_grams_per_pax",
"type": "INTEGER",
"mode": "REQUIRED",
"description": "Estimated emissions in grams for one passenger in business cabin",
},
{
"name": "first_emissions_grams_per_pax",
"type": "INTEGER",
"mode": "REQUIRED",
"description": "Estimated emissions in grams for one passenger in first cabin",
},
],
)
flights_impact_data_gcs_to_bq