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| <h1>Source code for airflow.contrib.operators.druid_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="kn">import</span> <span class="nn">json</span> |
| |
| <span class="kn">from</span> <span class="nn">airflow.hooks.druid_hook</span> <span class="k">import</span> <span class="n">DruidHook</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="DruidOperator"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.operators.druid_operator.DruidOperator">[docs]</a><span class="k">class</span> <span class="nc">DruidOperator</span><span class="p">(</span><span class="n">BaseOperator</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Allows to submit a task directly to druid</span> |
| |
| <span class="sd"> :param json_index_file: The filepath to the druid index specification</span> |
| <span class="sd"> :type json_index_file: str</span> |
| <span class="sd"> :param druid_ingest_conn_id: The connection id of the Druid overlord which</span> |
| <span class="sd"> accepts index jobs</span> |
| <span class="sd"> :type druid_ingest_conn_id: str</span> |
| <span class="sd"> """</span> |
| <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'index_spec_str'</span><span class="p">,)</span> |
| <span class="n">template_ext</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'.json'</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">json_index_file</span><span class="p">,</span> |
| <span class="n">druid_ingest_conn_id</span><span class="o">=</span><span class="s1">'druid_ingest_default'</span><span class="p">,</span> |
| <span class="n">max_ingestion_time</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">DruidOperator</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">conn_id</span> <span class="o">=</span> <span class="n">druid_ingest_conn_id</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">max_ingestion_time</span> <span class="o">=</span> <span class="n">max_ingestion_time</span> |
| |
| <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">json_index_file</span><span class="p">)</span> <span class="k">as</span> <span class="n">data_file</span><span class="p">:</span> |
| <span class="n">index_spec</span> <span class="o">=</span> <span class="n">json</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">data_file</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">index_spec_str</span> <span class="o">=</span> <span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">(</span> |
| <span class="n">index_spec</span><span class="p">,</span> |
| <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">indent</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> |
| <span class="n">separators</span><span class="o">=</span><span class="p">(</span><span class="s1">','</span><span class="p">,</span> <span class="s1">': '</span><span class="p">)</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="n">hook</span> <span class="o">=</span> <span class="n">DruidHook</span><span class="p">(</span> |
| <span class="n">druid_ingest_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">conn_id</span><span class="p">,</span> |
| <span class="n">max_ingestion_time</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">max_ingestion_time</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="s2">"Sumitting </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">index_spec_str</span><span class="p">)</span> |
| <span class="n">hook</span><span class="o">.</span><span class="n">submit_indexing_job</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">index_spec_str</span><span class="p">)</span></div> |
| </pre></div> |
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