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Posted to commits@airflow.apache.org by ka...@apache.org on 2018/08/27 16:26:56 UTC
[36/51] [partial] incubator-airflow-site git commit: 1.10.0
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+ <h1>Source code for airflow.contrib.operators.awsbatch_operator</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="c1">#</span>
+<span class="kn">import</span> <span class="nn">sys</span>
+
+<span class="kn">from</span> <span class="nn">math</span> <span class="k">import</span> <span class="nb">pow</span>
+<span class="kn">from</span> <span class="nn">time</span> <span class="k">import</span> <span class="n">sleep</span>
+
+<span class="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="k">import</span> <span class="n">AirflowException</span>
+<span class="kn">from</span> <span class="nn">airflow.models</span> <span class="k">import</span> <span class="n">BaseOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+<span class="kn">from</span> <span class="nn">airflow.contrib.hooks.aws_hook</span> <span class="k">import</span> <span class="n">AwsHook</span>
+
+
+<div class="viewcode-block" id="AWSBatchOperator"><a class="viewcode-back" href="../../../../integration.html#airflow.contrib.operators.awsbatch_operator.AWSBatchOperator">[docs]</a><span class="k">class</span> <span class="nc">AWSBatchOperator</span><span class="p">(</span><span class="n">BaseOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Execute a job on AWS Batch Service</span>
+
+<span class="sd"> :param job_name: the name for the job that will run on AWS Batch</span>
+<span class="sd"> :type job_name: str</span>
+<span class="sd"> :param job_definition: the job definition name on AWS Batch</span>
+<span class="sd"> :type job_definition: str</span>
+<span class="sd"> :param queue: the queue name on AWS Batch</span>
+<span class="sd"> :type queue: str</span>
+<span class="sd"> :param: overrides: the same parameter that boto3 will receive on containerOverrides:</span>
+<span class="sd"> http://boto3.readthedocs.io/en/latest/reference/services/batch.html#submit_job</span>
+<span class="sd"> :type: overrides: dict</span>
+<span class="sd"> :param max_retries: exponential backoff retries while waiter is not merged</span>
+<span class="sd"> :type max_retries: int</span>
+<span class="sd"> :param aws_conn_id: connection id of AWS credentials / region name. If None,</span>
+<span class="sd"> credential boto3 strategy will be used (http://boto3.readthedocs.io/en/latest/guide/configuration.html).</span>
+<span class="sd"> :type aws_conn_id: str</span>
+<span class="sd"> :param region_name: region name to use in AWS Hook. Override the region_name in connection (if provided)</span>
+<span class="sd"> """</span>
+
+ <span class="n">ui_color</span> <span class="o">=</span> <span class="s1">'#c3dae0'</span>
+ <span class="n">client</span> <span class="o">=</span> <span class="kc">None</span>
+ <span class="n">arn</span> <span class="o">=</span> <span class="kc">None</span>
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'overrides'</span><span class="p">,)</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">job_name</span><span class="p">,</span> <span class="n">job_definition</span><span class="p">,</span> <span class="n">queue</span><span class="p">,</span> <span class="n">overrides</span><span class="p">,</span> <span class="n">max_retries</span><span class="o">=</span><span class="mi">288</span><span class="p">,</span>
+ <span class="n">aws_conn_id</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">AWSBatchOperator</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">job_name</span> <span class="o">=</span> <span class="n">job_name</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span> <span class="o">=</span> <span class="n">aws_conn_id</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">region_name</span> <span class="o">=</span> <span class="n">region_name</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">job_definition</span> <span class="o">=</span> <span class="n">job_definition</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">queue</span> <span class="o">=</span> <span class="n">queue</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">overrides</span> <span class="o">=</span> <span class="n">overrides</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">max_retries</span> <span class="o">=</span> <span class="n">max_retries</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">jobId</span> <span class="o">=</span> <span class="kc">None</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">jobName</span> <span class="o">=</span> <span class="kc">None</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">hook</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_hook</span><span class="p">()</span>
+
+ <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span>
+ <span class="s1">'Running AWS Batch Job - Job definition: </span><span class="si">%s</span><span class="s1"> - on queue </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">job_definition</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">queue</span>
+ <span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'AWSBatchOperator overrides: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">overrides</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">client</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hook</span><span class="o">.</span><span class="n">get_client_type</span><span class="p">(</span>
+ <span class="s1">'batch'</span><span class="p">,</span>
+ <span class="n">region_name</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">region_name</span>
+ <span class="p">)</span>
+
+ <span class="k">try</span><span class="p">:</span>
+ <span class="n">response</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">client</span><span class="o">.</span><span class="n">submit_job</span><span class="p">(</span>
+ <span class="n">jobName</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">job_name</span><span class="p">,</span>
+ <span class="n">jobQueue</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">queue</span><span class="p">,</span>
+ <span class="n">jobDefinition</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">job_definition</span><span class="p">,</span>
+ <span class="n">containerOverrides</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">overrides</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'AWS Batch Job started: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">response</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">jobId</span> <span class="o">=</span> <span class="n">response</span><span class="p">[</span><span class="s1">'jobId'</span><span class="p">]</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">jobName</span> <span class="o">=</span> <span class="n">response</span><span class="p">[</span><span class="s1">'jobName'</span><span class="p">]</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">_wait_for_task_ended</span><span class="p">()</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">_check_success_task</span><span class="p">()</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'AWS Batch Job has been successfully executed: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">response</span><span class="p">)</span>
+ <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'AWS Batch Job has failed executed'</span><span class="p">)</span>
+ <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="n">e</span><span class="p">)</span>
+
+ <span class="k">def</span> <span class="nf">_wait_for_task_ended</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Try to use a waiter from the below pull request</span>
+
+<span class="sd"> * https://github.com/boto/botocore/pull/1307</span>
+
+<span class="sd"> If the waiter is not available apply a exponential backoff</span>
+
+<span class="sd"> * docs.aws.amazon.com/general/latest/gr/api-retries.html</span>
+<span class="sd"> """</span>
+ <span class="k">try</span><span class="p">:</span>
+ <span class="n">waiter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">client</span><span class="o">.</span><span class="n">get_waiter</span><span class="p">(</span><span class="s1">'job_execution_complete'</span><span class="p">)</span>
+ <span class="n">waiter</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">max_attempts</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxsize</span> <span class="c1"># timeout is managed by airflow</span>
+ <span class="n">waiter</span><span class="o">.</span><span class="n">wait</span><span class="p">(</span><span class="n">jobs</span><span class="o">=</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">jobId</span><span class="p">])</span>
+ <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
+ <span class="c1"># If waiter not available use expo</span>
+ <span class="n">retry</span> <span class="o">=</span> <span class="kc">True</span>
+ <span class="n">retries</span> <span class="o">=</span> <span class="mi">0</span>
+
+ <span class="k">while</span> <span class="n">retries</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_retries</span> <span class="ow">or</span> <span class="n">retry</span><span class="p">:</span>
+ <span class="n">response</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">client</span><span class="o">.</span><span class="n">describe_jobs</span><span class="p">(</span>
+ <span class="n">jobs</span><span class="o">=</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">jobId</span><span class="p">]</span>
+ <span class="p">)</span>
+ <span class="k">if</span> <span class="n">response</span><span class="p">[</span><span class="s1">'jobs'</span><span class="p">][</span><span class="o">-</span><span class="mi">1</span><span class="p">][</span><span class="s1">'status'</span><span class="p">]</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'SUCCEEDED'</span><span class="p">,</span> <span class="s1">'FAILED'</span><span class="p">]:</span>
+ <span class="n">retry</span> <span class="o">=</span> <span class="kc">False</span>
+
+ <span class="n">sleep</span><span class="p">(</span><span class="nb">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">retries</span><span class="p">)</span> <span class="o">*</span> <span class="mi">100</span><span class="p">)</span>
+ <span class="n">retries</span> <span class="o">+=</span> <span class="mi">1</span>
+
+ <span class="k">def</span> <span class="nf">_check_success_task</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="n">response</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">client</span><span class="o">.</span><span class="n">describe_jobs</span><span class="p">(</span>
+ <span class="n">jobs</span><span class="o">=</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">jobId</span><span class="p">],</span>
+ <span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'AWS Batch stopped, check status: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">response</span><span class="p">)</span>
+ <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'jobs'</span><span class="p">))</span> <span class="o"><</span> <span class="mi">1</span><span class="p">:</span>
+ <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s1">'No job found for </span><span class="si">{}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">response</span><span class="p">))</span>
+
+ <span class="k">for</span> <span class="n">job</span> <span class="ow">in</span> <span class="n">response</span><span class="p">[</span><span class="s1">'jobs'</span><span class="p">]:</span>
+ <span class="k">if</span> <span class="s1">'attempts'</span> <span class="ow">in</span> <span class="n">job</span><span class="p">:</span>
+ <span class="n">containers</span> <span class="o">=</span> <span class="n">job</span><span class="p">[</span><span class="s1">'attempts'</span><span class="p">]</span>
+ <span class="k">for</span> <span class="n">container</span> <span class="ow">in</span> <span class="n">containers</span><span class="p">:</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">job</span><span class="p">[</span><span class="s1">'status'</span><span class="p">]</span> <span class="o">==</span> <span class="s1">'FAILED'</span> <span class="ow">or</span>
+ <span class="n">container</span><span class="p">[</span><span class="s1">'container'</span><span class="p">][</span><span class="s1">'exitCode'</span><span class="p">]</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">):</span>
+ <span class="nb">print</span><span class="p">(</span><span class="s2">"@@@@"</span><span class="p">)</span>
+ <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s1">'This containers encounter an error during execution </span><span class="si">{}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">job</span><span class="p">))</span>
+ <span class="k">elif</span> <span class="n">job</span><span class="p">[</span><span class="s1">'status'</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="s1">'SUCCEEDED'</span><span class="p">:</span>
+ <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s1">'This task is still pending </span><span class="si">{}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">job</span><span class="p">[</span><span class="s1">'status'</span><span class="p">]))</span>
+
+ <span class="k">def</span> <span class="nf">get_hook</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="k">return</span> <span class="n">AwsHook</span><span class="p">(</span>
+ <span class="n">aws_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span>
+ <span class="p">)</span>
+
+ <span class="k">def</span> <span class="nf">on_kill</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="n">response</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">client</span><span class="o">.</span><span class="n">terminate_job</span><span class="p">(</span>
+ <span class="n">jobId</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">jobId</span><span class="p">,</span>
+ <span class="n">reason</span><span class="o">=</span><span class="s1">'Task killed by the user'</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">response</span><span class="p">)</span></div>
+</pre></div>
+
+ </div>
+ <div class="articleComments">
+
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+</html>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/incubator-airflow-site/blob/11437c14/_modules/airflow/contrib/operators/bigquery_check_operator.html
----------------------------------------------------------------------
diff --git a/_modules/airflow/contrib/operators/bigquery_check_operator.html b/_modules/airflow/contrib/operators/bigquery_check_operator.html
index cbad19f..1be7f24 100644
--- a/_modules/airflow/contrib/operators/bigquery_check_operator.html
+++ b/_modules/airflow/contrib/operators/bigquery_check_operator.html
@@ -91,7 +91,7 @@
<li class="toctree-l1"><a class="reference internal" href="../../../../start.html">Quick Start</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../installation.html">Installation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../tutorial.html">Tutorial</a></li>
-<li class="toctree-l1"><a class="reference internal" href="../../../../configuration.html">Configuration</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../../../../howto/index.html">How-to Guides</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../ui.html">UI / Screenshots</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../concepts.html">Concepts</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../profiling.html">Data Profiling</a></li>
@@ -99,8 +99,10 @@
<li class="toctree-l1"><a class="reference internal" href="../../../../scheduler.html">Scheduling & Triggers</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../plugins.html">Plugins</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../security.html">Security</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../../../../timezone.html">Time zones</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../api.html">Experimental Rest API</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../integration.html">Integration</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../../../../lineage.html">Lineage</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../faq.html">FAQ</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../../code.html">API Reference</a></li>
</ul>
@@ -169,17 +171,22 @@
<h1>Source code for airflow.contrib.operators.bigquery_check_operator</h1><div class="highlight"><pre>
<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
<span class="c1">#</span>
-<span class="c1"># Licensed under the Apache License, Version 2.0 (the "License");</span>
-<span class="c1"># you may not use this file except in compliance with the License.</span>
-<span class="c1"># 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, software</span>
-<span class="c1"># distributed under the License is distributed on an "AS IS" BASIS,</span>
-<span class="c1"># WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
-<span class="c1"># See the License for the specific language governing permissions and</span>
-<span class="c1"># limitations under the License.</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="kn">from</span> <span class="nn">airflow.contrib.hooks.bigquery_hook</span> <span class="k">import</span> <span class="n">BigQueryHook</span>
<span class="kn">from</span> <span class="nn">airflow.operators.check_operator</span> <span class="k">import</span> <span class="n">CheckOperator</span><span class="p">,</span> <span class="n">ValueCheckOperator</span><span class="p">,</span> <span class="n">IntervalCheckOperator</span>
@@ -262,10 +269,10 @@
<span class="sd"> Checks that the values of metrics given as SQL expressions are within</span>
<span class="sd"> a certain tolerance of the ones from days_back before.</span>
-<span class="sd"> This method constructs a query like so:</span>
+<span class="sd"> This method constructs a query like so ::</span>
-<span class="sd"> SELECT {metrics_threshold_dict_key} FROM {table}</span>
-<span class="sd"> WHERE {date_filter_column}=<date></span>
+<span class="sd"> SELECT {metrics_threshold_dict_key} FROM {table}</span>
+<span class="sd"> WHERE {date_filter_column}=<date></span>
<span class="sd"> :param table: the table name</span>
<span class="sd"> :type table: str</span>
http://git-wip-us.apache.org/repos/asf/incubator-airflow-site/blob/11437c14/_modules/airflow/contrib/operators/bigquery_get_data.html
----------------------------------------------------------------------
diff --git a/_modules/airflow/contrib/operators/bigquery_get_data.html b/_modules/airflow/contrib/operators/bigquery_get_data.html
new file mode 100644
index 0000000..9d28a70
--- /dev/null
+++ b/_modules/airflow/contrib/operators/bigquery_get_data.html
@@ -0,0 +1,351 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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+
+ <h1>Source code for airflow.contrib.operators.bigquery_get_data</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="kn">from</span> <span class="nn">airflow.contrib.hooks.bigquery_hook</span> <span class="k">import</span> <span class="n">BigQueryHook</span>
+<span class="kn">from</span> <span class="nn">airflow.models</span> <span class="k">import</span> <span class="n">BaseOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="BigQueryGetDataOperator"><a class="viewcode-back" href="../../../../integration.html#airflow.contrib.operators.bigquery_get_data.BigQueryGetDataOperator">[docs]</a><span class="k">class</span> <span class="nc">BigQueryGetDataOperator</span><span class="p">(</span><span class="n">BaseOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Fetches the data from a BigQuery table (alternatively fetch data for selected columns)</span>
+<span class="sd"> and returns data in a python list. The number of elements in the returned list will</span>
+<span class="sd"> be equal to the number of rows fetched. Each element in the list will again be a list</span>
+<span class="sd"> where element would represent the columns values for that row.</span>
+
+<span class="sd"> **Example Result**: ``[['Tony', '10'], ['Mike', '20'], ['Steve', '15']]``</span>
+
+<span class="sd"> .. note::</span>
+<span class="sd"> If you pass fields to ``selected_fields`` which are in different order than the</span>
+<span class="sd"> order of columns already in</span>
+<span class="sd"> BQ table, the data will still be in the order of BQ table.</span>
+<span class="sd"> For example if the BQ table has 3 columns as</span>
+<span class="sd"> ``[A,B,C]`` and you pass 'B,A' in the ``selected_fields``</span>
+<span class="sd"> the data would still be of the form ``'A,B'``.</span>
+
+<span class="sd"> **Example**: ::</span>
+
+<span class="sd"> get_data = BigQueryGetDataOperator(</span>
+<span class="sd"> task_id='get_data_from_bq',</span>
+<span class="sd"> dataset_id='test_dataset',</span>
+<span class="sd"> table_id='Transaction_partitions',</span>
+<span class="sd"> max_results='100',</span>
+<span class="sd"> selected_fields='DATE',</span>
+<span class="sd"> bigquery_conn_id='airflow-service-account'</span>
+<span class="sd"> )</span>
+
+<span class="sd"> :param dataset_id: The dataset ID of the requested table.</span>
+<span class="sd"> :type destination_dataset_table: string</span>
+<span class="sd"> :param table_id: The table ID of the requested table.</span>
+<span class="sd"> :type table_id: string</span>
+<span class="sd"> :param max_results: The maximum number of records (rows) to be fetched</span>
+<span class="sd"> from the table.</span>
+<span class="sd"> :type max_results: string</span>
+<span class="sd"> :param selected_fields: List of fields to return (comma-separated). If</span>
+<span class="sd"> unspecified, all fields are returned.</span>
+<span class="sd"> :type selected_fields: string</span>
+<span class="sd"> :param bigquery_conn_id: reference to a specific BigQuery hook.</span>
+<span class="sd"> :type bigquery_conn_id: string</span>
+<span class="sd"> :param delegate_to: The account to impersonate, if any.</span>
+<span class="sd"> For this to work, the service account making the request must have domain-wide</span>
+<span class="sd"> delegation enabled.</span>
+<span class="sd"> :type delegate_to: string</span>
+<span class="sd"> """</span>
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'dataset_id'</span><span class="p">,</span> <span class="s1">'table_id'</span><span class="p">,</span> <span class="s1">'max_results'</span><span class="p">)</span>
+ <span class="n">ui_color</span> <span class="o">=</span> <span class="s1">'#e4f0e8'</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span>
+ <span class="n">dataset_id</span><span class="p">,</span>
+ <span class="n">table_id</span><span class="p">,</span>
+ <span class="n">max_results</span><span class="o">=</span><span class="s1">'100'</span><span class="p">,</span>
+ <span class="n">selected_fields</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
+ <span class="n">bigquery_conn_id</span><span class="o">=</span><span class="s1">'bigquery_default'</span><span class="p">,</span>
+ <span class="n">delegate_to</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
+ <span class="o">*</span><span class="n">args</span><span class="p">,</span>
+ <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">BigQueryGetDataOperator</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">dataset_id</span> <span class="o">=</span> <span class="n">dataset_id</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">table_id</span> <span class="o">=</span> <span class="n">table_id</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">max_results</span> <span class="o">=</span> <span class="n">max_results</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">selected_fields</span> <span class="o">=</span> <span class="n">selected_fields</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">bigquery_conn_id</span> <span class="o">=</span> <span class="n">bigquery_conn_id</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">delegate_to</span> <span class="o">=</span> <span class="n">delegate_to</span>
+
+ <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Fetching Data from:'</span><span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Dataset: </span><span class="si">%s</span><span class="s1"> ; Table: </span><span class="si">%s</span><span class="s1"> ; Max Results: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">dataset_id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">table_id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_results</span><span class="p">)</span>
+
+ <span class="n">hook</span> <span class="o">=</span> <span class="n">BigQueryHook</span><span class="p">(</span><span class="n">bigquery_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">bigquery_conn_id</span><span class="p">,</span>
+ <span class="n">delegate_to</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">delegate_to</span><span class="p">)</span>
+
+ <span class="n">conn</span> <span class="o">=</span> <span class="n">hook</span><span class="o">.</span><span class="n">get_conn</span><span class="p">()</span>
+ <span class="n">cursor</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">cursor</span><span class="p">()</span>
+ <span class="n">response</span> <span class="o">=</span> <span class="n">cursor</span><span class="o">.</span><span class="n">get_tabledata</span><span class="p">(</span><span class="n">dataset_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dataset_id</span><span class="p">,</span>
+ <span class="n">table_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">table_id</span><span class="p">,</span>
+ <span class="n">max_results</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">max_results</span><span class="p">,</span>
+ <span class="n">selected_fields</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">selected_fields</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Total Extracted rows: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">response</span><span class="p">[</span><span class="s1">'totalRows'</span><span class="p">])</span>
+ <span class="n">rows</span> <span class="o">=</span> <span class="n">response</span><span class="p">[</span><span class="s1">'rows'</span><span class="p">]</span>
+
+ <span class="n">table_data</span> <span class="o">=</span> <span class="p">[]</span>
+ <span class="k">for</span> <span class="n">dict_row</span> <span class="ow">in</span> <span class="n">rows</span><span class="p">:</span>
+ <span class="n">single_row</span> <span class="o">=</span> <span class="p">[]</span>
+ <span class="k">for</span> <span class="n">fields</span> <span class="ow">in</span> <span class="n">dict_row</span><span class="p">[</span><span class="s1">'f'</span><span class="p">]:</span>
+ <span class="n">single_row</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">fields</span><span class="p">[</span><span class="s1">'v'</span><span class="p">])</span>
+ <span class="n">table_data</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">single_row</span><span class="p">)</span>
+
+ <span class="k">return</span> <span class="n">table_data</span></div>
+</pre></div>
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