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<h1>Source code for apache_beam.io.hadoopfilesystem</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="sd">&quot;&quot;&quot;:class:`~apache_beam.io.filesystem.FileSystem` implementation for accessing</span>
<span class="sd">Hadoop Distributed File System files.&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">absolute_import</span>
<span class="kn">import</span> <span class="nn">io</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">posixpath</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">builtins</span> <span class="k">import</span> <span class="nb">zip</span>
<span class="kn">import</span> <span class="nn">hdfs</span>
<span class="kn">from</span> <span class="nn">apache_beam.io</span> <span class="k">import</span> <span class="n">filesystemio</span>
<span class="kn">from</span> <span class="nn">apache_beam.io.filesystem</span> <span class="k">import</span> <span class="n">BeamIOError</span>
<span class="kn">from</span> <span class="nn">apache_beam.io.filesystem</span> <span class="k">import</span> <span class="n">CompressedFile</span>
<span class="kn">from</span> <span class="nn">apache_beam.io.filesystem</span> <span class="k">import</span> <span class="n">CompressionTypes</span>
<span class="kn">from</span> <span class="nn">apache_beam.io.filesystem</span> <span class="k">import</span> <span class="n">FileMetadata</span>
<span class="kn">from</span> <span class="nn">apache_beam.io.filesystem</span> <span class="k">import</span> <span class="n">FileSystem</span>
<span class="kn">from</span> <span class="nn">apache_beam.options.pipeline_options</span> <span class="k">import</span> <span class="n">HadoopFileSystemOptions</span>
<span class="kn">from</span> <span class="nn">apache_beam.options.pipeline_options</span> <span class="k">import</span> <span class="n">PipelineOptions</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;HadoopFileSystem&#39;</span><span class="p">]</span>
<span class="n">_HDFS_PREFIX</span> <span class="o">=</span> <span class="s1">&#39;hdfs:/&#39;</span>
<span class="n">_URL_RE</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;^&#39;</span> <span class="o">+</span> <span class="n">_HDFS_PREFIX</span> <span class="o">+</span> <span class="sa">r</span><span class="s1">&#39;(/.*)&#39;</span><span class="p">)</span>
<span class="n">_COPY_BUFFER_SIZE</span> <span class="o">=</span> <span class="mi">2</span> <span class="o">**</span> <span class="mi">16</span>
<span class="n">_DEFAULT_BUFFER_SIZE</span> <span class="o">=</span> <span class="mi">20</span> <span class="o">*</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span>
<span class="c1"># WebHDFS FileChecksum property constants.</span>
<span class="n">_FILE_CHECKSUM_ALGORITHM</span> <span class="o">=</span> <span class="s1">&#39;algorithm&#39;</span>
<span class="n">_FILE_CHECKSUM_BYTES</span> <span class="o">=</span> <span class="s1">&#39;bytes&#39;</span>
<span class="n">_FILE_CHECKSUM_LENGTH</span> <span class="o">=</span> <span class="s1">&#39;length&#39;</span>
<span class="c1"># WebHDFS FileStatus property constants.</span>
<span class="n">_FILE_STATUS_LENGTH</span> <span class="o">=</span> <span class="s1">&#39;length&#39;</span>
<span class="n">_FILE_STATUS_PATH_SUFFIX</span> <span class="o">=</span> <span class="s1">&#39;pathSuffix&#39;</span>
<span class="n">_FILE_STATUS_TYPE</span> <span class="o">=</span> <span class="s1">&#39;type&#39;</span>
<span class="n">_FILE_STATUS_TYPE_DIRECTORY</span> <span class="o">=</span> <span class="s1">&#39;DIRECTORY&#39;</span>
<span class="n">_FILE_STATUS_TYPE_FILE</span> <span class="o">=</span> <span class="s1">&#39;FILE&#39;</span>
<span class="k">class</span> <span class="nc">HdfsDownloader</span><span class="p">(</span><span class="n">filesystemio</span><span class="o">.</span><span class="n">Downloader</span><span class="p">):</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">hdfs_client</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span> <span class="o">=</span> <span class="n">hdfs_client</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_path</span> <span class="o">=</span> <span class="n">path</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">path</span><span class="p">)[</span><span class="n">_FILE_STATUS_LENGTH</span><span class="p">]</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span>
<span class="k">def</span> <span class="nf">get_range</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="p">):</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">read</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_path</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="n">start</span><span class="p">,</span> <span class="n">length</span><span class="o">=</span><span class="n">end</span> <span class="o">-</span> <span class="n">start</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="k">as</span> <span class="n">reader</span><span class="p">:</span>
<span class="k">return</span> <span class="n">reader</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="k">class</span> <span class="nc">HdfsUploader</span><span class="p">(</span><span class="n">filesystemio</span><span class="o">.</span><span class="n">Uploader</span><span class="p">):</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">hdfs_client</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span> <span class="o">=</span> <span class="n">hdfs_client</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;Path already exists: </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">path</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_handle_context</span><span class="o">.</span><span class="fm">__enter__</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">put</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">finish</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">_handle</span><span class="o">.</span><span class="fm">__exit__</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle_context</span> <span class="o">=</span> <span class="kc">None</span>
<div class="viewcode-block" id="HadoopFileSystem"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem">[docs]</a><span class="k">class</span> <span class="nc">HadoopFileSystem</span><span class="p">(</span><span class="n">FileSystem</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;``FileSystem`` implementation that supports HDFS.</span>
<span class="sd"> URL arguments to methods expect strings starting with ``hdfs://``.</span>
<span class="sd"> &quot;&quot;&quot;</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">pipeline_options</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Initializes a connection to HDFS.</span>
<span class="sd"> Connection configuration is done by passing pipeline options.</span>
<span class="sd"> See :class:`~apache_beam.options.pipeline_options.HadoopFileSystemOptions`.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="nb">super</span><span class="p">(</span><span class="n">HadoopFileSystem</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="n">pipeline_options</span><span class="p">)</span>
<span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">&#39;hdfs.client&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">setLevel</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">WARN</span><span class="p">)</span>
<span class="k">if</span> <span class="n">pipeline_options</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;pipeline_options is not set&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">pipeline_options</span><span class="p">,</span> <span class="n">PipelineOptions</span><span class="p">):</span>
<span class="n">hdfs_options</span> <span class="o">=</span> <span class="n">pipeline_options</span><span class="o">.</span><span class="n">view_as</span><span class="p">(</span><span class="n">HadoopFileSystemOptions</span><span class="p">)</span>
<span class="n">hdfs_host</span> <span class="o">=</span> <span class="n">hdfs_options</span><span class="o">.</span><span class="n">hdfs_host</span>
<span class="n">hdfs_port</span> <span class="o">=</span> <span class="n">hdfs_options</span><span class="o">.</span><span class="n">hdfs_port</span>
<span class="n">hdfs_user</span> <span class="o">=</span> <span class="n">hdfs_options</span><span class="o">.</span><span class="n">hdfs_user</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">hdfs_host</span> <span class="o">=</span> <span class="n">pipeline_options</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;hdfs_host&#39;</span><span class="p">)</span>
<span class="n">hdfs_port</span> <span class="o">=</span> <span class="n">pipeline_options</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;hdfs_port&#39;</span><span class="p">)</span>
<span class="n">hdfs_user</span> <span class="o">=</span> <span class="n">pipeline_options</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;hdfs_user&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">hdfs_host</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;hdfs_host is not set&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">hdfs_port</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;hdfs_port is not set&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">hdfs_user</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;hdfs_user is not set&#39;</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span> <span class="o">=</span> <span class="n">hdfs</span><span class="o">.</span><span class="n">InsecureClient</span><span class="p">(</span>
<span class="s1">&#39;http://</span><span class="si">%s</span><span class="s1">:</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">hdfs_host</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">hdfs_port</span><span class="p">)),</span> <span class="n">user</span><span class="o">=</span><span class="n">hdfs_user</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.scheme"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.scheme">[docs]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">scheme</span><span class="p">(</span><span class="bp">cls</span><span class="p">):</span>
<span class="k">return</span> <span class="s1">&#39;hdfs&#39;</span></div>
<span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Verifies that url begins with hdfs:// prefix, strips it and adds a</span>
<span class="sd"> leading /.</span>
<span class="sd"> Raises:</span>
<span class="sd"> ValueError if url doesn&#39;t begin with hdfs://.</span>
<span class="sd"> Args:</span>
<span class="sd"> url: A URL in the form hdfs://path/...</span>
<span class="sd"> Returns:</span>
<span class="sd"> For an input of &#39;hdfs://path/...&#39;, will return &#39;/path/...&#39;.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">m</span> <span class="o">=</span> <span class="n">_URL_RE</span><span class="o">.</span><span class="n">match</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">if</span> <span class="n">m</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;Could not parse url: </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">url</span><span class="p">)</span>
<span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.join"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.join">[docs]</a> <span class="k">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">base_url</span><span class="p">,</span> <span class="o">*</span><span class="n">paths</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Join two or more pathname components.</span>
<span class="sd"> Args:</span>
<span class="sd"> base_url: string path of the first component of the path.</span>
<span class="sd"> Must start with hdfs://.</span>
<span class="sd"> paths: path components to be added</span>
<span class="sd"> Returns:</span>
<span class="sd"> Full url after combining all the passed components.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">basepath</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">base_url</span><span class="p">)</span>
<span class="k">return</span> <span class="n">_HDFS_PREFIX</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_join</span><span class="p">(</span><span class="n">basepath</span><span class="p">,</span> <span class="o">*</span><span class="n">paths</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">basepath</span><span class="p">,</span> <span class="o">*</span><span class="n">paths</span><span class="p">):</span>
<span class="k">return</span> <span class="n">posixpath</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">basepath</span><span class="p">,</span> <span class="o">*</span><span class="n">paths</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.split"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.split">[docs]</a> <span class="k">def</span> <span class="nf">split</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="n">rel_path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="n">head</span><span class="p">,</span> <span class="n">tail</span> <span class="o">=</span> <span class="n">posixpath</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">rel_path</span><span class="p">)</span>
<span class="k">return</span> <span class="n">_HDFS_PREFIX</span> <span class="o">+</span> <span class="n">head</span><span class="p">,</span> <span class="n">tail</span></div>
<div class="viewcode-block" id="HadoopFileSystem.mkdirs"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.mkdirs">[docs]</a> <span class="k">def</span> <span class="nf">mkdirs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_exists</span><span class="p">(</span><span class="n">path</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;Path already exists: </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">path</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_mkdirs</span><span class="p">(</span><span class="n">path</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_mkdirs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">makedirs</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.has_dirs"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.has_dirs">[docs]</a> <span class="k">def</span> <span class="nf">has_dirs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">True</span></div>
<span class="k">def</span> <span class="nf">_list</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">for</span> <span class="n">res</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">list</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">status</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">FileMetadata</span><span class="p">(</span><span class="n">_HDFS_PREFIX</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_join</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span>
<span class="n">res</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="n">_FILE_STATUS_LENGTH</span><span class="p">])</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;List operation failed&#39;</span><span class="p">,</span> <span class="p">{</span><span class="n">url</span><span class="p">:</span> <span class="n">e</span><span class="p">})</span>
<span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">_add_compression</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">,</span> <span class="n">compression_type</span><span class="p">):</span>
<span class="k">if</span> <span class="n">mime_type</span> <span class="o">!=</span> <span class="s1">&#39;application/octet-stream&#39;</span><span class="p">:</span>
<span class="n">logging</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">&#39;Mime types are not supported. Got non-default mime_type:&#39;</span>
<span class="s1">&#39; </span><span class="si">%s</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">)</span>
<span class="k">if</span> <span class="n">compression_type</span> <span class="o">==</span> <span class="n">CompressionTypes</span><span class="o">.</span><span class="n">AUTO</span><span class="p">:</span>
<span class="n">compression_type</span> <span class="o">=</span> <span class="n">CompressionTypes</span><span class="o">.</span><span class="n">detect_compression_type</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
<span class="k">if</span> <span class="n">compression_type</span> <span class="o">!=</span> <span class="n">CompressionTypes</span><span class="o">.</span><span class="n">UNCOMPRESSED</span><span class="p">:</span>
<span class="k">return</span> <span class="n">CompressedFile</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span>
<span class="k">return</span> <span class="n">stream</span>
<div class="viewcode-block" id="HadoopFileSystem.create"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.create">[docs]</a> <span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="s1">&#39;application/octet-stream&#39;</span><span class="p">,</span>
<span class="n">compression_type</span><span class="o">=</span><span class="n">CompressionTypes</span><span class="o">.</span><span class="n">AUTO</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Returns:</span>
<span class="sd"> A Python File-like object.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">,</span> <span class="n">compression_type</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_create</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="s1">&#39;application/octet-stream&#39;</span><span class="p">,</span>
<span class="n">compression_type</span><span class="o">=</span><span class="n">CompressionTypes</span><span class="o">.</span><span class="n">AUTO</span><span class="p">):</span>
<span class="n">stream</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BufferedWriter</span><span class="p">(</span>
<span class="n">filesystemio</span><span class="o">.</span><span class="n">UploaderStream</span><span class="p">(</span>
<span class="n">HdfsUploader</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="p">,</span> <span class="n">path</span><span class="p">)),</span>
<span class="n">buffer_size</span><span class="o">=</span><span class="n">_DEFAULT_BUFFER_SIZE</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_add_compression</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">,</span> <span class="n">compression_type</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.open"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.open">[docs]</a> <span class="k">def</span> <span class="nf">open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="s1">&#39;application/octet-stream&#39;</span><span class="p">,</span>
<span class="n">compression_type</span><span class="o">=</span><span class="n">CompressionTypes</span><span class="o">.</span><span class="n">AUTO</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Returns:</span>
<span class="sd"> A Python File-like object.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_open</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">,</span> <span class="n">compression_type</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="s1">&#39;application/octet-stream&#39;</span><span class="p">,</span>
<span class="n">compression_type</span><span class="o">=</span><span class="n">CompressionTypes</span><span class="o">.</span><span class="n">AUTO</span><span class="p">):</span>
<span class="n">stream</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BufferedReader</span><span class="p">(</span>
<span class="n">filesystemio</span><span class="o">.</span><span class="n">DownloaderStream</span><span class="p">(</span>
<span class="n">HdfsDownloader</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="p">,</span> <span class="n">path</span><span class="p">)),</span>
<span class="n">buffer_size</span><span class="o">=</span><span class="n">_DEFAULT_BUFFER_SIZE</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_add_compression</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">,</span> <span class="n">compression_type</span><span class="p">)</span>
<div class="viewcode-block" id="HadoopFileSystem.copy"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.copy">[docs]</a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_file_names</span><span class="p">,</span> <span class="n">destination_file_names</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> It is an error if any file to copy already exists at the destination.</span>
<span class="sd"> Raises ``BeamIOError`` if any error occurred.</span>
<span class="sd"> Args:</span>
<span class="sd"> source_file_names: iterable of URLs.</span>
<span class="sd"> destination_file_names: iterable of URLs.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">source_file_names</span><span class="p">)</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">destination_file_names</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span>
<span class="s1">&#39;source_file_names and destination_file_names should &#39;</span>
<span class="s1">&#39;be equal in length: </span><span class="si">%d</span><span class="s1"> != </span><span class="si">%d</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span>
<span class="nb">len</span><span class="p">(</span><span class="n">source_file_names</span><span class="p">),</span> <span class="nb">len</span><span class="p">(</span><span class="n">destination_file_names</span><span class="p">)))</span>
<span class="k">def</span> <span class="nf">_copy_file</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">):</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">_open</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> <span class="k">as</span> <span class="n">f1</span><span class="p">:</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create</span><span class="p">(</span><span class="n">destination</span><span class="p">)</span> <span class="k">as</span> <span class="n">f2</span><span class="p">:</span>
<span class="k">while</span> <span class="kc">True</span><span class="p">:</span>
<span class="n">buf</span> <span class="o">=</span> <span class="n">f1</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">_COPY_BUFFER_SIZE</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">buf</span><span class="p">:</span>
<span class="k">break</span>
<span class="n">f2</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">buf</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_copy_path</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Recursively copy the file tree from the source to the destination.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">status</span><span class="p">(</span>
<span class="n">source</span><span class="p">)[</span><span class="n">_FILE_STATUS_TYPE</span><span class="p">]</span> <span class="o">!=</span> <span class="n">_FILE_STATUS_TYPE_DIRECTORY</span><span class="p">:</span>
<span class="n">_copy_file</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">)</span>
<span class="k">return</span>
<span class="k">for</span> <span class="n">path</span><span class="p">,</span> <span class="n">dirs</span><span class="p">,</span> <span class="n">files</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">walk</span><span class="p">(</span><span class="n">source</span><span class="p">):</span>
<span class="k">for</span> <span class="nb">dir</span> <span class="ow">in</span> <span class="n">dirs</span><span class="p">:</span>
<span class="n">new_dir</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_join</span><span class="p">(</span><span class="n">destination</span><span class="p">,</span> <span class="nb">dir</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_exists</span><span class="p">(</span><span class="n">new_dir</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mkdirs</span><span class="p">(</span><span class="n">new_dir</span><span class="p">)</span>
<span class="n">rel_path</span> <span class="o">=</span> <span class="n">posixpath</span><span class="o">.</span><span class="n">relpath</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span>
<span class="k">if</span> <span class="n">rel_path</span> <span class="o">==</span> <span class="s1">&#39;.&#39;</span><span class="p">:</span>
<span class="n">rel_path</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">for</span> <span class="n">file</span> <span class="ow">in</span> <span class="n">files</span><span class="p">:</span>
<span class="n">_copy_file</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_join</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">file</span><span class="p">),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_join</span><span class="p">(</span><span class="n">destination</span><span class="p">,</span> <span class="n">rel_path</span><span class="p">,</span> <span class="n">file</span><span class="p">))</span>
<span class="n">exceptions</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">destination</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">source_file_names</span><span class="p">,</span> <span class="n">destination_file_names</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">rel_source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">source</span><span class="p">)</span>
<span class="n">rel_destination</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">destination</span><span class="p">)</span>
<span class="n">_copy_path</span><span class="p">(</span><span class="n">rel_source</span><span class="p">,</span> <span class="n">rel_destination</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">exceptions</span><span class="p">[(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">)]</span> <span class="o">=</span> <span class="n">e</span>
<span class="k">if</span> <span class="n">exceptions</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;Copy operation failed&#39;</span><span class="p">,</span> <span class="n">exceptions</span><span class="p">)</span></div>
<div class="viewcode-block" id="HadoopFileSystem.rename"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.rename">[docs]</a> <span class="k">def</span> <span class="nf">rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_file_names</span><span class="p">,</span> <span class="n">destination_file_names</span><span class="p">):</span>
<span class="n">exceptions</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">destination</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">source_file_names</span><span class="p">,</span> <span class="n">destination_file_names</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">rel_source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">source</span><span class="p">)</span>
<span class="n">rel_destination</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">destination</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">rename</span><span class="p">(</span><span class="n">rel_source</span><span class="p">,</span> <span class="n">rel_destination</span><span class="p">)</span>
<span class="k">except</span> <span class="n">hdfs</span><span class="o">.</span><span class="n">HdfsError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span>
<span class="s1">&#39;libhdfs error in renaming </span><span class="si">%s</span><span class="s1"> to </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">),</span> <span class="n">e</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">exceptions</span><span class="p">[(</span><span class="n">source</span><span class="p">,</span> <span class="n">destination</span><span class="p">)]</span> <span class="o">=</span> <span class="n">e</span>
<span class="k">if</span> <span class="n">exceptions</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;Rename operation failed&#39;</span><span class="p">,</span> <span class="n">exceptions</span><span class="p">)</span></div>
<div class="viewcode-block" id="HadoopFileSystem.exists"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.exists">[docs]</a> <span class="k">def</span> <span class="nf">exists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Checks existence of url in HDFS.</span>
<span class="sd"> Args:</span>
<span class="sd"> url: String in the form hdfs://...</span>
<span class="sd"> Returns:</span>
<span class="sd"> True if url exists as a file or directory in HDFS.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_exists</span><span class="p">(</span><span class="n">path</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_exists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns True if path exists as a file or directory in HDFS.</span>
<span class="sd"> Args:</span>
<span class="sd"> path: String in the form /...</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">_hdfs_client</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
<div class="viewcode-block" id="HadoopFileSystem.size"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.size">[docs]</a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="n">status</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
<span class="k">if</span> <span class="n">status</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s1">&#39;File not found: </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">url</span><span class="p">)</span>
<span class="k">return</span> <span class="n">status</span><span class="p">[</span><span class="n">_FILE_STATUS_LENGTH</span><span class="p">]</span></div>
<div class="viewcode-block" id="HadoopFileSystem.last_updated"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.last_updated">[docs]</a> <span class="k">def</span> <span class="nf">last_updated</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span></div>
<div class="viewcode-block" id="HadoopFileSystem.checksum"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.checksum">[docs]</a> <span class="k">def</span> <span class="nf">checksum</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Fetches a checksum description for a URL.</span>
<span class="sd"> Returns:</span>
<span class="sd"> String describing the checksum.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="n">file_checksum</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">checksum</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
<span class="k">return</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">-</span><span class="si">%d</span><span class="s1">-</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">file_checksum</span><span class="p">[</span><span class="n">_FILE_CHECKSUM_ALGORITHM</span><span class="p">],</span>
<span class="n">file_checksum</span><span class="p">[</span><span class="n">_FILE_CHECKSUM_LENGTH</span><span class="p">],</span>
<span class="n">file_checksum</span><span class="p">[</span><span class="n">_FILE_CHECKSUM_BYTES</span><span class="p">],</span>
<span class="p">)</span></div>
<div class="viewcode-block" id="HadoopFileSystem.delete"><a class="viewcode-back" href="../../../apache_beam.io.hadoopfilesystem.html#apache_beam.io.hadoopfilesystem.HadoopFileSystem.delete">[docs]</a> <span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">urls</span><span class="p">):</span>
<span class="n">exceptions</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">url</span> <span class="ow">in</span> <span class="n">urls</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hdfs_client</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">exceptions</span><span class="p">[</span><span class="n">url</span><span class="p">]</span> <span class="o">=</span> <span class="n">e</span>
<span class="k">if</span> <span class="n">exceptions</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">BeamIOError</span><span class="p">(</span><span class="s2">&quot;Delete operation failed&quot;</span><span class="p">,</span> <span class="n">exceptions</span><span class="p">)</span></div></div>
</pre></div>
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