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| <h1>Source code for airflow.contrib.example_dags.example_gcp_translate</h1><div class="highlight"><pre> |
| <span></span><span class="c1"># -*- coding: utf-8 -*-</span> |
| <span class="c1">#</span> |
| <span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="c1"># or more contributor license agreements. See the NOTICE file</span> |
| <span class="c1"># distributed with this work for additional information</span> |
| <span class="c1"># regarding copyright ownership. The ASF licenses this file</span> |
| <span class="c1"># to you under the Apache License, Version 2.0 (the</span> |
| <span class="c1"># "License"); you may not use this file except in compliance</span> |
| <span class="c1"># with the License. You may obtain a copy of the License at</span> |
| <span class="c1">#</span> |
| <span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="c1">#</span> |
| <span class="c1"># Unless required by applicable law or agreed to in writing,</span> |
| <span class="c1"># software distributed under the License is distributed on an</span> |
| <span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span> |
| <span class="c1"># KIND, either express or implied. See the License for the</span> |
| <span class="c1"># specific language governing permissions and limitations</span> |
| <span class="c1"># under the License.</span> |
| |
| <span class="sd">"""</span> |
| <span class="sd">Example Airflow DAG that translates text in Google Cloud Translate</span> |
| <span class="sd">service in the Google Cloud Platform.</span> |
| |
| <span class="sd">"""</span> |
| <span class="kn">import</span> <span class="nn">airflow</span> |
| <span class="kn">from</span> <span class="nn">airflow</span> <span class="k">import</span> <span class="n">models</span> |
| |
| <span class="kn">from</span> <span class="nn">airflow.contrib.operators.gcp_translate_operator</span> <span class="k">import</span> <span class="n">CloudTranslateTextOperator</span> |
| <span class="kn">from</span> <span class="nn">airflow.operators.bash_operator</span> <span class="k">import</span> <span class="n">BashOperator</span> |
| |
| <span class="n">default_args</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'start_date'</span><span class="p">:</span> <span class="n">airflow</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">dates</span><span class="o">.</span><span class="n">days_ago</span><span class="p">(</span><span class="mi">1</span><span class="p">)}</span> |
| |
| <span class="k">with</span> <span class="n">models</span><span class="o">.</span><span class="n">DAG</span><span class="p">(</span> |
| <span class="s1">'example_gcp_translate'</span><span class="p">,</span> <span class="n">default_args</span><span class="o">=</span><span class="n">default_args</span><span class="p">,</span> <span class="n">schedule_interval</span><span class="o">=</span><span class="kc">None</span> <span class="c1"># Override to match your needs</span> |
| <span class="p">)</span> <span class="k">as</span> <span class="n">dag</span><span class="p">:</span> |
| <span class="c1"># [START howto_operator_translate_text]</span> |
| <span class="n">product_set_create</span> <span class="o">=</span> <span class="n">CloudTranslateTextOperator</span><span class="p">(</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'translate'</span><span class="p">,</span> |
| <span class="n">values</span><span class="o">=</span><span class="p">[</span><span class="s1">'zażółć gęślą jaźń'</span><span class="p">],</span> |
| <span class="n">target_language</span><span class="o">=</span><span class="s1">'en'</span><span class="p">,</span> |
| <span class="n">format_</span><span class="o">=</span><span class="s1">'text'</span><span class="p">,</span> |
| <span class="n">source_language</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> |
| <span class="n">model</span><span class="o">=</span><span class="s1">'base'</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_translate_text]</span> |
| <span class="c1"># [START howto_operator_translate_access]</span> |
| <span class="n">translation_access</span> <span class="o">=</span> <span class="n">BashOperator</span><span class="p">(</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'access'</span><span class="p">,</span> |
| <span class="n">bash_command</span><span class="o">=</span><span class="s2">"echo '{{ task_instance.xcom_pull(</span><span class="se">\"</span><span class="s2">translate</span><span class="se">\"</span><span class="s2">)[0] }}'"</span> |
| <span class="p">)</span> |
| <span class="n">product_set_create</span> <span class="o">>></span> <span class="n">translation_access</span> |
| <span class="c1"># [END howto_operator_translate_access]</span> |
| </pre></div> |
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