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<h1>Source code for pyspark.sql.conf</h1><div class="highlight"><pre>
<span></span><span class="c1">#</span>
<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one or more</span>
<span class="c1"># contributor license agreements. See the NOTICE file distributed with</span>
<span class="c1"># this work for additional information regarding copyright ownership.</span>
<span class="c1"># The ASF licenses this file to You under the Apache License, Version 2.0</span>
<span class="c1"># (the &quot;License&quot;); you may not use this file except in compliance with</span>
<span class="c1"># 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, software</span>
<span class="c1"># distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span>
<span class="c1"># WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="c1"># See the License for the specific language governing permissions and</span>
<span class="c1"># limitations under the License.</span>
<span class="c1">#</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">pyspark</span> <span class="kn">import</span> <span class="n">since</span><span class="p">,</span> <span class="n">_NoValue</span>
<div class="viewcode-block" id="RuntimeConfig"><a class="viewcode-back" href="../../../reference/api/pyspark.sql.conf.RuntimeConfig.html#pyspark.sql.conf.RuntimeConfig">[docs]</a><span class="k">class</span> <span class="nc">RuntimeConfig</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;User-facing configuration API, accessible through `SparkSession.conf`.</span>
<span class="sd"> Options set here are automatically propagated to the Hadoop configuration during I/O.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">jconf</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Create a new RuntimeConfig that wraps the underlying JVM object.&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span> <span class="o">=</span> <span class="n">jconf</span>
<span class="nd">@since</span><span class="p">(</span><span class="mf">2.0</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Sets the given Spark runtime configuration property.&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<span class="nd">@since</span><span class="p">(</span><span class="mf">2.0</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">_NoValue</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns the value of Spark runtime configuration property for the given key,</span>
<span class="sd"> assuming it is set.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_checkType</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="s2">&quot;key&quot;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">default</span> <span class="ow">is</span> <span class="n">_NoValue</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">default</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_checkType</span><span class="p">(</span><span class="n">default</span><span class="p">,</span> <span class="s2">&quot;default&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="p">)</span>
<span class="nd">@since</span><span class="p">(</span><span class="mf">2.0</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">unset</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Resets the configuration property for the given key.&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span><span class="o">.</span><span class="n">unset</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_checkType</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">obj</span><span class="p">,</span> <span class="n">identifier</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Assert that an object is of type str.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">&quot;expected </span><span class="si">%s</span><span class="s2"> &#39;</span><span class="si">%s</span><span class="s2">&#39; to be a string (was &#39;</span><span class="si">%s</span><span class="s2">&#39;)&quot;</span> <span class="o">%</span>
<span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">obj</span><span class="p">,</span> <span class="nb">type</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span><span class="o">.</span><span class="vm">__name__</span><span class="p">))</span>
<span class="nd">@since</span><span class="p">(</span><span class="mf">2.4</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">isModifiable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Indicates whether the configuration property with the given key</span>
<span class="sd"> is modifiable in the current session.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_jconf</span><span class="o">.</span><span class="n">isModifiable</span><span class="p">(</span><span class="n">key</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_test</span><span class="p">():</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">doctest</span>
<span class="kn">from</span> <span class="nn">pyspark.sql.session</span> <span class="kn">import</span> <span class="n">SparkSession</span>
<span class="kn">import</span> <span class="nn">pyspark.sql.conf</span>
<span class="n">os</span><span class="o">.</span><span class="n">chdir</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">[</span><span class="s2">&quot;SPARK_HOME&quot;</span><span class="p">])</span>
<span class="n">globs</span> <span class="o">=</span> <span class="n">pyspark</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">conf</span><span class="o">.</span><span class="vm">__dict__</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
<span class="n">spark</span> <span class="o">=</span> <span class="n">SparkSession</span><span class="o">.</span><span class="n">builder</span>\
<span class="o">.</span><span class="n">master</span><span class="p">(</span><span class="s2">&quot;local[4]&quot;</span><span class="p">)</span>\
<span class="o">.</span><span class="n">appName</span><span class="p">(</span><span class="s2">&quot;sql.conf tests&quot;</span><span class="p">)</span>\
<span class="o">.</span><span class="n">getOrCreate</span><span class="p">()</span>
<span class="n">globs</span><span class="p">[</span><span class="s1">&#39;sc&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">spark</span><span class="o">.</span><span class="n">sparkContext</span>
<span class="n">globs</span><span class="p">[</span><span class="s1">&#39;spark&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">spark</span>
<span class="p">(</span><span class="n">failure_count</span><span class="p">,</span> <span class="n">test_count</span><span class="p">)</span> <span class="o">=</span> <span class="n">doctest</span><span class="o">.</span><span class="n">testmod</span><span class="p">(</span><span class="n">pyspark</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">conf</span><span class="p">,</span> <span class="n">globs</span><span class="o">=</span><span class="n">globs</span><span class="p">)</span>
<span class="n">spark</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>
<span class="k">if</span> <span class="n">failure_count</span><span class="p">:</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">)</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
<span class="n">_test</span><span class="p">()</span>
</pre></div>
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