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| <h1>Source code for airflow.contrib.sensors.qubole_sensor</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">qds_sdk.qubole</span> <span class="k">import</span> <span class="n">Qubole</span> |
| <span class="kn">from</span> <span class="nn">qds_sdk.sensors</span> <span class="k">import</span> <span class="n">FileSensor</span><span class="p">,</span> <span class="n">PartitionSensor</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.hooks.base_hook</span> <span class="k">import</span> <span class="n">BaseHook</span> |
| <span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</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="QuboleSensor"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.sensors.qubole_sensor.QuboleSensor">[docs]</a><span class="k">class</span> <span class="nc">QuboleSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Base class for all Qubole Sensors</span> |
| |
| <span class="sd"> :param qubole_conn_id: The qubole connection to run the sensor against</span> |
| <span class="sd"> :type qubole_conn_id: string</span> |
| <span class="sd"> :param data: a JSON object containing payload, whose presence needs to be checked</span> |
| <span class="sd"> :type data: a JSON object</span> |
| |
| <span class="sd"> .. note:: Both ``data`` and ``qubole_conn_id`` fields are template-supported. You can</span> |
| <span class="sd"> also use ``.txt`` files for template driven use cases.</span> |
| <span class="sd"> """</span> |
| |
| <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'data'</span><span class="p">,</span> <span class="s1">'qubole_conn_id'</span><span class="p">)</span> |
| |
| <span class="n">template_ext</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'.txt'</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">data</span><span class="p">,</span> <span class="n">qubole_conn_id</span><span class="o">=</span><span class="s2">"qubole_default"</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">data</span> <span class="o">=</span> <span class="n">data</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">qubole_conn_id</span> <span class="o">=</span> <span class="n">qubole_conn_id</span> |
| |
| <span class="k">if</span> <span class="s1">'poke_interval'</span> <span class="ow">in</span> <span class="n">kwargs</span> <span class="ow">and</span> <span class="n">kwargs</span><span class="p">[</span><span class="s1">'poke_interval'</span><span class="p">]</span> <span class="o"><</span> <span class="mi">5</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s2">"Sorry, poke_interval can't be less than 5 sec for "</span> |
| <span class="s2">"task '</span><span class="si">{0}</span><span class="s2">' in dag '</span><span class="si">{1}</span><span class="s2">'."</span> |
| <span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'task_id'</span><span class="p">],</span> <span class="n">kwargs</span><span class="p">[</span><span class="s1">'dag'</span><span class="p">]</span><span class="o">.</span><span class="n">dag_id</span><span class="p">))</span> |
| |
| <span class="nb">super</span><span class="p">(</span><span class="n">QuboleSensor</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> |
| |
| <div class="viewcode-block" id="QuboleSensor.poke"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.sensors.qubole_sensor.QuboleSensor.poke">[docs]</a> <span class="k">def</span> <span class="nf">poke</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="n">conn</span> <span class="o">=</span> <span class="n">BaseHook</span><span class="o">.</span><span class="n">get_connection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">qubole_conn_id</span><span class="p">)</span> |
| <span class="n">Qubole</span><span class="o">.</span><span class="n">configure</span><span class="p">(</span><span class="n">api_token</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">password</span><span class="p">,</span> <span class="n">api_url</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">host</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">'Poking: </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">data</span><span class="p">)</span> |
| |
| <span class="n">status</span> <span class="o">=</span> <span class="kc">False</span> |
| <span class="k">try</span><span class="p">:</span> |
| <span class="n">status</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sensor_class</span><span class="o">.</span><span class="n">check</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">data</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">exception</span><span class="p">(</span><span class="n">e</span><span class="p">)</span> |
| <span class="n">status</span> <span class="o">=</span> <span class="kc">False</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">'Status of this Poke: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">status</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">status</span></div></div> |
| |
| |
| <span class="k">class</span> <span class="nc">QuboleFileSensor</span><span class="p">(</span><span class="n">QuboleSensor</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="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">sensor_class</span> <span class="o">=</span> <span class="n">FileSensor</span> |
| <span class="nb">super</span><span class="p">(</span><span class="n">QuboleFileSensor</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="k">class</span> <span class="nc">QubolePartitionSensor</span><span class="p">(</span><span class="n">QuboleSensor</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="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">sensor_class</span> <span class="o">=</span> <span class="n">PartitionSensor</span> |
| <span class="nb">super</span><span class="p">(</span><span class="n">QubolePartitionSensor</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> |
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