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<h1>Source code for airflow.hooks.jdbc_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">from</span> <span class="nn">builtins</span> <span class="kn">import</span> <span class="nb">str</span>
<span class="kn">import</span> <span class="nn">jaydebeapi</span>
<span class="kn">from</span> <span class="nn">airflow.hooks.dbapi_hook</span> <span class="kn">import</span> <span class="n">DbApiHook</span>
<div class="viewcode-block" id="JdbcHook"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook">[docs]</a><span class="k">class</span> <span class="nc">JdbcHook</span><span class="p">(</span><span class="n">DbApiHook</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> General hook for jdbc db access.</span>
<span class="sd"> JDBC URL, username and password will be taken from the predefined connection.</span>
<span class="sd"> Note that the whole JDBC URL must be specified in the &quot;host&quot; field in the DB.</span>
<span class="sd"> Raises an airflow error if the given connection id doesn&#39;t exist.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<div class="viewcode-block" id="JdbcHook.conn_name_attr"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.conn_name_attr">[docs]</a> <span class="n">conn_name_attr</span> <span class="o">=</span> <span class="s1">&#39;jdbc_conn_id&#39;</span></div>
<div class="viewcode-block" id="JdbcHook.default_conn_name"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.default_conn_name">[docs]</a> <span class="n">default_conn_name</span> <span class="o">=</span> <span class="s1">&#39;jdbc_default&#39;</span></div>
<div class="viewcode-block" id="JdbcHook.supports_autocommit"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.supports_autocommit">[docs]</a> <span class="n">supports_autocommit</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="JdbcHook.get_conn"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.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="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="n">login</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">login</span>
<span class="n">psw</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">password</span>
<span class="n">jdbc_driver_loc</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;extra__jdbc__drv_path&#39;</span><span class="p">)</span>
<span class="n">jdbc_driver_name</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;extra__jdbc__drv_clsname&#39;</span><span class="p">)</span>
<span class="n">conn</span> <span class="o">=</span> <span class="n">jaydebeapi</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="n">jclassname</span><span class="o">=</span><span class="n">jdbc_driver_name</span><span class="p">,</span>
<span class="n">url</span><span class="o">=</span><span class="nb">str</span><span class="p">(</span><span class="n">host</span><span class="p">),</span>
<span class="n">driver_args</span><span class="o">=</span><span class="p">[</span><span class="nb">str</span><span class="p">(</span><span class="n">login</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">psw</span><span class="p">)],</span>
<span class="n">jars</span><span class="o">=</span><span class="n">jdbc_driver_loc</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;,&quot;</span><span class="p">))</span>
<span class="k">return</span> <span class="n">conn</span></div>
<div class="viewcode-block" id="JdbcHook.set_autocommit"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.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="sd">&quot;&quot;&quot;</span>
<span class="sd"> Enable or disable autocommit for the given connection.</span>
<span class="sd"> :param conn: The connection.</span>
<span class="sd"> :type conn: connection object</span>
<span class="sd"> :param autocommit: The connection&#39;s autocommit setting.</span>
<span class="sd"> :type autocommit: bool</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">conn</span><span class="o">.</span><span class="n">jconn</span><span class="o">.</span><span class="n">setAutoCommit</span><span class="p">(</span><span class="n">autocommit</span><span class="p">)</span></div>
<div class="viewcode-block" id="JdbcHook.get_autocommit"><a class="viewcode-back" href="../../../_api/airflow/hooks/jdbc_hook/index.html#airflow.hooks.jdbc_hook.JdbcHook.get_autocommit">[docs]</a> <span class="k">def</span> <span class="nf">get_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="sd">&quot;&quot;&quot;</span>
<span class="sd"> Get autocommit setting for the provided connection.</span>
<span class="sd"> Return True if conn.autocommit is set to True.</span>
<span class="sd"> Return False if conn.autocommit is not set or set to False</span>
<span class="sd"> :param conn: The connection.</span>
<span class="sd"> :type conn: connection object</span>
<span class="sd"> :return: connection autocommit setting.</span>
<span class="sd"> :rtype: bool</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">conn</span><span class="o">.</span><span class="n">jconn</span><span class="o">.</span><span class="n">getAutoCommit</span><span class="p">()</span></div></div>
</pre></div>
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