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<h1>Source code for airflow.contrib.operators.aws_athena_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"># &quot;License&quot;); 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"># &quot;AS IS&quot; 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">from</span> <span class="nn">uuid</span> <span class="k">import</span> <span class="n">uuid4</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>
<span class="kn">from</span> <span class="nn">airflow.contrib.hooks.aws_athena_hook</span> <span class="k">import</span> <span class="n">AWSAthenaHook</span>
<div class="viewcode-block" id="AWSAthenaOperator"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator">[docs]</a><span class="k">class</span> <span class="nc">AWSAthenaOperator</span><span class="p">(</span><span class="n">BaseOperator</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> An operator that submit presto query to athena.</span>
<span class="sd"> If ``do_xcom_push`` is True, the QueryExecutionID assigned to the</span>
<span class="sd"> query will be pushed to an XCom when it successfuly completes.</span>
<span class="sd"> :param query: Presto to be run on athena. (templated)</span>
<span class="sd"> :type query: str</span>
<span class="sd"> :param database: Database to select. (templated)</span>
<span class="sd"> :type database: str</span>
<span class="sd"> :param output_location: s3 path to write the query results into. (templated)</span>
<span class="sd"> :type output_location: str</span>
<span class="sd"> :param aws_conn_id: aws connection to use</span>
<span class="sd"> :type aws_conn_id: str</span>
<span class="sd"> :param sleep_time: Time to wait between two consecutive call to check query status on athena</span>
<span class="sd"> :type sleep_time: int</span>
<span class="sd"> :param max_tries: Number of times to poll for query state before function exits</span>
<span class="sd"> :type max_triex: int</span>
<span class="sd"> &quot;&quot;&quot;</span>
<div class="viewcode-block" id="AWSAthenaOperator.ui_color"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.ui_color">[docs]</a> <span class="n">ui_color</span> <span class="o">=</span> <span class="s1">&#39;#44b5e2&#39;</span></div>
<div class="viewcode-block" id="AWSAthenaOperator.template_fields"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.template_fields">[docs]</a> <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;query&#39;</span><span class="p">,</span> <span class="s1">&#39;database&#39;</span><span class="p">,</span> <span class="s1">&#39;output_location&#39;</span><span class="p">)</span></div>
<div class="viewcode-block" id="AWSAthenaOperator.template_ext"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.template_ext">[docs]</a> <span class="n">template_ext</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;.sql&#39;</span><span class="p">,</span> <span class="p">)</span></div>
<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">query</span><span class="p">,</span> <span class="n">database</span><span class="p">,</span> <span class="n">output_location</span><span class="p">,</span> <span class="n">aws_conn_id</span><span class="o">=</span><span class="s1">&#39;aws_default&#39;</span><span class="p">,</span> <span class="n">client_request_token</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">query_execution_context</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">result_configuration</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">sleep_time</span><span class="o">=</span><span class="mi">30</span><span class="p">,</span> <span class="n">max_tries</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">AWSAthenaOperator</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">query</span> <span class="o">=</span> <span class="n">query</span>
<span class="bp">self</span><span class="o">.</span><span class="n">database</span> <span class="o">=</span> <span class="n">database</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output_location</span> <span class="o">=</span> <span class="n">output_location</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">client_request_token</span> <span class="o">=</span> <span class="n">client_request_token</span> <span class="ow">or</span> <span class="nb">str</span><span class="p">(</span><span class="n">uuid4</span><span class="p">())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query_execution_context</span> <span class="o">=</span> <span class="n">query_execution_context</span> <span class="ow">or</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_configuration</span> <span class="o">=</span> <span class="n">result_configuration</span> <span class="ow">or</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sleep_time</span> <span class="o">=</span> <span class="n">sleep_time</span>
<span class="bp">self</span><span class="o">.</span><span class="n">max_tries</span> <span class="o">=</span> <span class="n">max_tries</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</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="kc">None</span>
<div class="viewcode-block" id="AWSAthenaOperator.get_hook"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.get_hook">[docs]</a> <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">AWSAthenaHook</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">sleep_time</span><span class="p">)</span></div>
<div class="viewcode-block" id="AWSAthenaOperator.execute"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.execute">[docs]</a> <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="sd">&quot;&quot;&quot;</span>
<span class="sd"> Run Presto Query on Athena</span>
<span class="sd"> &quot;&quot;&quot;</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="bp">self</span><span class="o">.</span><span class="n">query_execution_context</span><span class="p">[</span><span class="s1">&#39;Database&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">database</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_configuration</span><span class="p">[</span><span class="s1">&#39;OutputLocation&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">output_location</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</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">run_query</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_context</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_configuration</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">client_request_token</span><span class="p">)</span>
<span class="n">query_status</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">poll_query_status</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_tries</span><span class="p">)</span>
<span class="k">if</span> <span class="n">query_status</span> <span class="ow">in</span> <span class="n">AWSAthenaHook</span><span class="o">.</span><span class="n">FAILURE_STATES</span><span class="p">:</span>
<span class="n">error_message</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_state_change_reason</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">)</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
<span class="s1">&#39;Final state of Athena job is </span><span class="si">{}</span><span class="s1">, query_execution_id is </span><span class="si">{}</span><span class="s1">. Error: </span><span class="si">{}</span><span class="s1">&#39;</span>
<span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">query_status</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">,</span> <span class="n">error_message</span><span class="p">))</span>
<span class="k">elif</span> <span class="ow">not</span> <span class="n">query_status</span> <span class="ow">or</span> <span class="n">query_status</span> <span class="ow">in</span> <span class="n">AWSAthenaHook</span><span class="o">.</span><span class="n">INTERMEDIATE_STATES</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
<span class="s1">&#39;Final state of Athena job is </span><span class="si">{}</span><span class="s1">. &#39;</span>
<span class="s1">&#39;Max tries of poll status exceeded, query_execution_id is </span><span class="si">{}</span><span class="s1">.&#39;</span>
<span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">query_status</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">))</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span></div>
<div class="viewcode-block" id="AWSAthenaOperator.on_kill"><a class="viewcode-back" href="../../../../_api/airflow/contrib/operators/aws_athena_operator/index.html#airflow.contrib.operators.aws_athena_operator.AWSAthenaOperator.on_kill">[docs]</a> <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="sd">&quot;&quot;&quot;</span>
<span class="sd"> Cancel the submitted athena query</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</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">&#39;⚰️⚰️⚰️ Received a kill Signal. Time to Die&#39;</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">&#39;Stopping Query with executionId - </span><span class="si">%s</span><span class="s1">&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</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">hook</span><span class="o">.</span><span class="n">stop_query</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">)</span>
<span class="n">http_status_code</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">http_status_code</span> <span class="o">=</span> <span class="n">response</span><span class="p">[</span><span class="s1">&#39;ResponseMetadata&#39;</span><span class="p">][</span><span class="s1">&#39;HTTPStatusCode&#39;</span><span class="p">]</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">ex</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">error</span><span class="p">(</span><span class="s1">&#39;Exception while cancelling query&#39;</span><span class="p">,</span> <span class="n">ex</span><span class="p">)</span>
<span class="k">finally</span><span class="p">:</span>
<span class="k">if</span> <span class="n">http_status_code</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">http_status_code</span> <span class="o">!=</span> <span class="mi">200</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">error</span><span class="p">(</span><span class="s1">&#39;Unable to request query cancel on athena. Exiting&#39;</span><span class="p">)</span>
<span class="k">else</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">&#39;Polling Athena for query with id </span><span class="si">%s</span><span class="s1"> to reach final state&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">hook</span><span class="o">.</span><span class="n">poll_query_status</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query_execution_id</span><span class="p">)</span></div></div>
</pre></div>
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