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<h1>Source code for airflow.contrib.hooks.pinot_hook</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="kn">import</span> <span class="nn">six</span>
<span class="kn">from</span> <span class="nn">pinotdb</span> <span class="k">import</span> <span class="n">connect</span>
<span class="kn">from</span> <span class="nn">airflow.hooks.dbapi_hook</span> <span class="k">import</span> <span class="n">DbApiHook</span>
<div class="viewcode-block" id="PinotDbApiHook"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook">[docs]</a><span class="k">class</span> <span class="nc">PinotDbApiHook</span><span class="p">(</span><span class="n">DbApiHook</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Connect to pinot db(https://github.com/linkedin/pinot) to issue pql</span>
<span class="sd"> &quot;&quot;&quot;</span>
<div class="viewcode-block" id="PinotDbApiHook.conn_name_attr"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.conn_name_attr">[docs]</a> <span class="n">conn_name_attr</span> <span class="o">=</span> <span class="s1">&#39;pinot_broker_conn_id&#39;</span></div>
<div class="viewcode-block" id="PinotDbApiHook.default_conn_name"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.default_conn_name">[docs]</a> <span class="n">default_conn_name</span> <span class="o">=</span> <span class="s1">&#39;pinot_broker_default&#39;</span></div>
<div class="viewcode-block" id="PinotDbApiHook.supports_autocommit"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.supports_autocommit">[docs]</a> <span class="n">supports_autocommit</span> <span class="o">=</span> <span class="kc">False</span></div>
<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="nb">super</span><span class="p">(</span><span class="n">PinotDbApiHook</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="PinotDbApiHook.get_conn"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.get_conn">[docs]</a> <span class="k">def</span> <span class="nf">get_conn</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Establish a connection to pinot broker through pinot dbqpi.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</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">pinot_broker_conn_id</span><span class="p">)</span>
<span class="n">pinot_broker_conn</span> <span class="o">=</span> <span class="n">connect</span><span class="p">(</span>
<span class="n">host</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="n">port</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">port</span><span class="p">,</span>
<span class="n">path</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;endpoint&#39;</span><span class="p">,</span> <span class="s1">&#39;/pql&#39;</span><span class="p">),</span>
<span class="n">scheme</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;schema&#39;</span><span class="p">,</span> <span class="s1">&#39;http&#39;</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">&#39;Get the connection to pinot &#39;</span>
<span class="s1">&#39;broker on </span><span class="si">{host}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">host</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="k">return</span> <span class="n">pinot_broker_conn</span></div>
<div class="viewcode-block" id="PinotDbApiHook.get_uri"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.get_uri">[docs]</a> <span class="k">def</span> <span class="nf">get_uri</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Get the connection uri for pinot broker.</span>
<span class="sd"> e.g: http://localhost:9000/pql</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connection</span><span class="p">(</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">conn_name_attr</span><span class="p">))</span>
<span class="n">host</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">host</span>
<span class="k">if</span> <span class="n">conn</span><span class="o">.</span><span class="n">port</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">host</span> <span class="o">+=</span> <span class="s1">&#39;:</span><span class="si">{port}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">port</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">port</span><span class="p">)</span>
<span class="n">conn_type</span> <span class="o">=</span> <span class="s1">&#39;http&#39;</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">conn</span><span class="o">.</span><span class="n">conn_type</span> <span class="k">else</span> <span class="n">conn</span><span class="o">.</span><span class="n">conn_type</span>
<span class="n">endpoint</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;endpoint&#39;</span><span class="p">,</span> <span class="s1">&#39;pql&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="s1">&#39;</span><span class="si">{conn_type}</span><span class="s1">://</span><span class="si">{host}</span><span class="s1">/</span><span class="si">{endpoint}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">conn_type</span><span class="o">=</span><span class="n">conn_type</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="n">host</span><span class="p">,</span> <span class="n">endpoint</span><span class="o">=</span><span class="n">endpoint</span><span class="p">)</span></div>
<div class="viewcode-block" id="PinotDbApiHook.get_records"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.get_records">[docs]</a> <span class="k">def</span> <span class="nf">get_records</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sql</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Executes the sql and returns a set of records.</span>
<span class="sd"> :param sql: the sql statement to be executed (str) or a list of</span>
<span class="sd"> sql statements to execute</span>
<span class="sd"> :type sql: str</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">six</span><span class="o">.</span><span class="n">PY2</span><span class="p">:</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_conn</span><span class="p">()</span> <span class="k">as</span> <span class="n">cur</span><span class="p">:</span>
<span class="n">cur</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span><span class="n">sql</span><span class="p">)</span>
<span class="k">return</span> <span class="n">cur</span><span class="o">.</span><span class="n">fetchall</span><span class="p">()</span></div>
<div class="viewcode-block" id="PinotDbApiHook.get_first"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.get_first">[docs]</a> <span class="k">def</span> <span class="nf">get_first</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sql</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Executes the sql and returns the first resulting row.</span>
<span class="sd"> :param sql: the sql statement to be executed (str) or a list of</span>
<span class="sd"> sql statements to execute</span>
<span class="sd"> :type sql: str or list</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">six</span><span class="o">.</span><span class="n">PY2</span><span class="p">:</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_conn</span><span class="p">()</span> <span class="k">as</span> <span class="n">cur</span><span class="p">:</span>
<span class="n">cur</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span><span class="n">sql</span><span class="p">)</span>
<span class="k">return</span> <span class="n">cur</span><span class="o">.</span><span class="n">fetchone</span><span class="p">()</span></div>
<div class="viewcode-block" id="PinotDbApiHook.set_autocommit"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.set_autocommit">[docs]</a> <span class="k">def</span> <span class="nf">set_autocommit</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">conn</span><span class="p">,</span> <span class="n">autocommit</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span></div>
<div class="viewcode-block" id="PinotDbApiHook.get_pandas_df"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.get_pandas_df">[docs]</a> <span class="k">def</span> <span class="nf">get_pandas_df</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sql</span><span class="p">,</span> <span class="n">parameters</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span></div>
<div class="viewcode-block" id="PinotDbApiHook.insert_rows"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/pinot_hook/index.html#airflow.contrib.hooks.pinot_hook.PinotDbApiHook.insert_rows">[docs]</a> <span class="k">def</span> <span class="nf">insert_rows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">,</span> <span class="n">rows</span><span class="p">,</span> <span class="n">target_fields</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">commit_every</span><span class="o">=</span><span class="mi">1000</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span></div></div>
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