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| <h1>Source code for pyspark.files</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 "License"); 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 "AS IS" 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">os</span> |
| |
| |
| <span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"SparkFiles"</span><span class="p">]</span> |
| |
| <span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">cast</span><span class="p">,</span> <span class="n">ClassVar</span><span class="p">,</span> <span class="n">Optional</span><span class="p">,</span> <span class="n">TYPE_CHECKING</span> |
| |
| <span class="k">if</span> <span class="n">TYPE_CHECKING</span><span class="p">:</span> |
| <span class="kn">from</span> <span class="nn">pyspark</span> <span class="kn">import</span> <span class="n">SparkContext</span> |
| |
| |
| <div class="viewcode-block" id="SparkFiles"><a class="viewcode-back" href="../../reference/api/pyspark.SparkFiles.html#pyspark.SparkFiles">[docs]</a><span class="k">class</span> <span class="nc">SparkFiles</span><span class="p">:</span> |
| |
| <span class="w"> </span><span class="sd">"""</span> |
| <span class="sd"> Resolves paths to files added through :meth:`SparkContext.addFile`.</span> |
| |
| <span class="sd"> SparkFiles contains only classmethods; users should not create SparkFiles</span> |
| <span class="sd"> instances.</span> |
| <span class="sd"> """</span> |
| |
| <span class="n">_root_directory</span><span class="p">:</span> <span class="n">ClassVar</span><span class="p">[</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="n">_is_running_on_worker</span><span class="p">:</span> <span class="n">ClassVar</span><span class="p">[</span><span class="nb">bool</span><span class="p">]</span> <span class="o">=</span> <span class="kc">False</span> |
| <span class="n">_sc</span><span class="p">:</span> <span class="n">ClassVar</span><span class="p">[</span><span class="n">Optional</span><span class="p">[</span><span class="s2">"SparkContext"</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</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="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><span class="s2">"Do not construct SparkFiles objects"</span><span class="p">)</span> |
| |
| <div class="viewcode-block" id="SparkFiles.get"><a class="viewcode-back" href="../../reference/api/pyspark.SparkFiles.get.html#pyspark.SparkFiles.get">[docs]</a> <span class="nd">@classmethod</span> |
| <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">filename</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| <span class="w"> </span><span class="sd">"""</span> |
| <span class="sd"> Get the absolute path of a file added through :meth:`SparkContext.addFile`.</span> |
| <span class="sd"> """</span> |
| <span class="n">path</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">SparkFiles</span><span class="o">.</span><span class="n">getRootDirectory</span><span class="p">(),</span> <span class="n">filename</span><span class="p">)</span> |
| <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">abspath</span><span class="p">(</span><span class="n">path</span><span class="p">)</span></div> |
| |
| <div class="viewcode-block" id="SparkFiles.getRootDirectory"><a class="viewcode-back" href="../../reference/api/pyspark.SparkFiles.getRootDirectory.html#pyspark.SparkFiles.getRootDirectory">[docs]</a> <span class="nd">@classmethod</span> |
| <span class="k">def</span> <span class="nf">getRootDirectory</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| <span class="w"> </span><span class="sd">"""</span> |
| <span class="sd"> Get the root directory that contains files added through</span> |
| <span class="sd"> :meth:`SparkContext.addFile`.</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_is_running_on_worker</span><span class="p">:</span> |
| <span class="k">return</span> <span class="n">cast</span><span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_root_directory</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="c1"># This will have to change if we support multiple SparkContexts:</span> |
| <span class="k">assert</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_sc</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> |
| <span class="k">assert</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_sc</span><span class="o">.</span><span class="n">_jvm</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> |
| <span class="k">return</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_sc</span><span class="o">.</span><span class="n">_jvm</span><span class="o">.</span><span class="n">org</span><span class="o">.</span><span class="n">apache</span><span class="o">.</span><span class="n">spark</span><span class="o">.</span><span class="n">SparkFiles</span><span class="o">.</span><span class="n">getRootDirectory</span><span class="p">()</span></div></div> |
| </pre></div> |
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