#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
"""
Example Airflow DAG that shows the complex DAG structure.
"""
import pendulum
from airflow import models
from airflow.models.baseoperator import chain
from airflow.operators.bash import BashOperator
with models.DAG(
dag_id="example_complex",
schedule_interval=None,
start_date=pendulum.datetime(2021, 1, 1, tz="UTC"),
catchup=False,
tags=['example', 'example2', 'example3'],
) as dag:
# Create
[docs] create_entry_group = BashOperator(task_id="create_entry_group", bash_command="echo create_entry_group")
create_entry_group_result = BashOperator(
task_id="create_entry_group_result", bash_command="echo create_entry_group_result"
)
create_entry_group_result2 = BashOperator(
task_id="create_entry_group_result2", bash_command="echo create_entry_group_result2"
)
create_entry_gcs = BashOperator(task_id="create_entry_gcs", bash_command="echo create_entry_gcs")
create_entry_gcs_result = BashOperator(
task_id="create_entry_gcs_result", bash_command="echo create_entry_gcs_result"
)
create_entry_gcs_result2 = BashOperator(
task_id="create_entry_gcs_result2", bash_command="echo create_entry_gcs_result2"
)
create_tag = BashOperator(task_id="create_tag", bash_command="echo create_tag")
create_tag_result = BashOperator(task_id="create_tag_result", bash_command="echo create_tag_result")
create_tag_result2 = BashOperator(task_id="create_tag_result2", bash_command="echo create_tag_result2")
create_tag_template = BashOperator(task_id="create_tag_template", bash_command="echo create_tag_template")
create_tag_template_result = BashOperator(
task_id="create_tag_template_result", bash_command="echo create_tag_template_result"
)
create_tag_template_result2 = BashOperator(
task_id="create_tag_template_result2", bash_command="echo create_tag_template_result2"
)
create_tag_template_field = BashOperator(
task_id="create_tag_template_field", bash_command="echo create_tag_template_field"
)
create_tag_template_field_result = BashOperator(
task_id="create_tag_template_field_result", bash_command="echo create_tag_template_field_result"
)
create_tag_template_field_result2 = BashOperator(
task_id="create_tag_template_field_result2", bash_command="echo create_tag_template_field_result"
)
# Delete
delete_entry = BashOperator(task_id="delete_entry", bash_command="echo delete_entry")
create_entry_gcs >> delete_entry
delete_entry_group = BashOperator(task_id="delete_entry_group", bash_command="echo delete_entry_group")
create_entry_group >> delete_entry_group
delete_tag = BashOperator(task_id="delete_tag", bash_command="echo delete_tag")
create_tag >> delete_tag
delete_tag_template_field = BashOperator(
task_id="delete_tag_template_field", bash_command="echo delete_tag_template_field"
)
delete_tag_template = BashOperator(task_id="delete_tag_template", bash_command="echo delete_tag_template")
# Get
get_entry_group = BashOperator(task_id="get_entry_group", bash_command="echo get_entry_group")
get_entry_group_result = BashOperator(
task_id="get_entry_group_result", bash_command="echo get_entry_group_result"
)
get_entry = BashOperator(task_id="get_entry", bash_command="echo get_entry")
get_entry_result = BashOperator(task_id="get_entry_result", bash_command="echo get_entry_result")
get_tag_template = BashOperator(task_id="get_tag_template", bash_command="echo get_tag_template")
get_tag_template_result = BashOperator(
task_id="get_tag_template_result", bash_command="echo get_tag_template_result"
)
# List
list_tags = BashOperator(task_id="list_tags", bash_command="echo list_tags")
list_tags_result = BashOperator(task_id="list_tags_result", bash_command="echo list_tags_result")
# Lookup
lookup_entry = BashOperator(task_id="lookup_entry", bash_command="echo lookup_entry")
lookup_entry_result = BashOperator(task_id="lookup_entry_result", bash_command="echo lookup_entry_result")
# Rename
rename_tag_template_field = BashOperator(
task_id="rename_tag_template_field", bash_command="echo rename_tag_template_field"
)
# Search
search_catalog = BashOperator(task_id="search_catalog", bash_command="echo search_catalog")
search_catalog_result = BashOperator(
task_id="search_catalog_result", bash_command="echo search_catalog_result"
)
# Update
update_entry = BashOperator(task_id="update_entry", bash_command="echo update_entry")
update_tag = BashOperator(task_id="update_tag", bash_command="echo update_tag")
update_tag_template = BashOperator(task_id="update_tag_template", bash_command="echo update_tag_template")
update_tag_template_field = BashOperator(
task_id="update_tag_template_field", bash_command="echo update_tag_template_field"
)
# Create
create_tasks = [
create_entry_group,
create_entry_gcs,
create_tag_template,
create_tag_template_field,
create_tag,
]
chain(*create_tasks)
create_entry_group >> delete_entry_group
create_entry_group >> create_entry_group_result
create_entry_group >> create_entry_group_result2
create_entry_gcs >> delete_entry
create_entry_gcs >> create_entry_gcs_result
create_entry_gcs >> create_entry_gcs_result2
create_tag_template >> delete_tag_template_field
create_tag_template >> create_tag_template_result
create_tag_template >> create_tag_template_result2
create_tag_template_field >> delete_tag_template_field
create_tag_template_field >> create_tag_template_field_result
create_tag_template_field >> create_tag_template_field_result2
create_tag >> delete_tag
create_tag >> create_tag_result
create_tag >> create_tag_result2
# Delete
delete_tasks = [
delete_tag,
delete_tag_template_field,
delete_tag_template,
delete_entry_group,
delete_entry,
]
chain(*delete_tasks)
# Get
create_tag_template >> get_tag_template >> delete_tag_template
get_tag_template >> get_tag_template_result
create_entry_gcs >> get_entry >> delete_entry
get_entry >> get_entry_result
create_entry_group >> get_entry_group >> delete_entry_group
get_entry_group >> get_entry_group_result
# List
create_tag >> list_tags >> delete_tag
list_tags >> list_tags_result
# Lookup
create_entry_gcs >> lookup_entry >> delete_entry
lookup_entry >> lookup_entry_result
# Rename
create_tag_template_field >> rename_tag_template_field >> delete_tag_template_field
# Search
chain(create_tasks, search_catalog, delete_tasks)
search_catalog >> search_catalog_result
# Update
create_entry_gcs >> update_entry >> delete_entry
create_tag >> update_tag >> delete_tag
create_tag_template >> update_tag_template >> delete_tag_template
create_tag_template_field >> update_tag_template_field >> rename_tag_template_field