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| |
| <section id="module-apache_beam.io.localfilesystem"> |
| <span id="apache-beam-io-localfilesystem-module"></span><h1>apache_beam.io.localfilesystem module<a class="headerlink" href="#module-apache_beam.io.localfilesystem" title="Link to this heading"></a></h1> |
| <p>Local File system implementation for accessing files on disk.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.io.localfilesystem.</span></span><span class="sig-name descname"><span class="pre">LocalFileSystem</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pipeline_options</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.io.filesystem.html#apache_beam.io.filesystem.FileSystem" title="apache_beam.io.filesystem.FileSystem"><code class="xref py py-class docutils literal notranslate"><span class="pre">FileSystem</span></code></a></p> |
| <p>A Local <code class="docutils literal notranslate"><span class="pre">FileSystem</span></code> implementation for accessing files on disk.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>pipeline_options</strong> – Instance of <code class="docutils literal notranslate"><span class="pre">PipelineOptions</span></code> or dict of options and |
| values (like <code class="docutils literal notranslate"><span class="pre">RuntimeValueProvider.runtime_options</span></code>).</p> |
| </dd> |
| </dl> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.scheme"> |
| <em class="property"><span class="pre">classmethod</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">scheme</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.scheme"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.scheme" title="Link to this definition"></a></dt> |
| <dd><p>URI scheme for the FileSystem</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.join"> |
| <span class="sig-name descname"><span class="pre">join</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">basepath</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">paths</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.join"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.join" title="Link to this definition"></a></dt> |
| <dd><p>Join two or more pathname components for the filesystem</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>basepath</strong> – string path of the first component of the path</p></li> |
| <li><p><strong>paths</strong> – path components to be added</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <p>Returns: full path after combining all the passed components</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.split"> |
| <span class="sig-name descname"><span class="pre">split</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.split"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.split" title="Link to this definition"></a></dt> |
| <dd><p>Splits the given path into two parts.</p> |
| <p>Splits the path into a pair (head, tail) such that tail contains the last |
| component of the path and head contains everything up to that.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – path as a string</p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>a pair of path components as strings.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.mkdirs"> |
| <span class="sig-name descname"><span class="pre">mkdirs</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.mkdirs"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.mkdirs" title="Link to this definition"></a></dt> |
| <dd><p>Recursively create directories for the provided path.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path of the directory structure that should be created</p> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference external" href="https://docs.python.org/3/library/exceptions.html#IOError" title="(in Python v3.13)"><strong>IOError</strong></a> – if leaf directory already exists.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.has_dirs"> |
| <span class="sig-name descname"><span class="pre">has_dirs</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.has_dirs"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.has_dirs" title="Link to this definition"></a></dt> |
| <dd><p>Whether this FileSystem supports directories.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.create"> |
| <span class="sig-name descname"><span class="pre">create</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mime_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'application/octet-stream'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">compression_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'auto'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">→</span> <span class="sig-return-typehint"><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.BinaryIO" title="(in Python v3.13)"><span class="pre">BinaryIO</span></a></span></span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.create"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.create" title="Link to this definition"></a></dt> |
| <dd><p>Returns a write channel for the given file path.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>path</strong> – string path of the file object to be written to the system</p></li> |
| <li><p><strong>mime_type</strong> – MIME type to specify the type of content in the file object</p></li> |
| <li><p><strong>compression_type</strong> – Type of compression to be used for this object</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <p>Returns: file handle with a close function for the user to use</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.open"> |
| <span class="sig-name descname"><span class="pre">open</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mime_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'application/octet-stream'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">compression_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'auto'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">→</span> <span class="sig-return-typehint"><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.BinaryIO" title="(in Python v3.13)"><span class="pre">BinaryIO</span></a></span></span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.open"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.open" title="Link to this definition"></a></dt> |
| <dd><p>Returns a read channel for the given file path.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>path</strong> – string path of the file object to be written to the system</p></li> |
| <li><p><strong>mime_type</strong> – MIME type to specify the type of content in the file object</p></li> |
| <li><p><strong>compression_type</strong> – Type of compression to be used for this object</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <p>Returns: file handle with a close function for the user to use</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.copy"> |
| <span class="sig-name descname"><span class="pre">copy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">source_file_names</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">destination_file_names</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.copy"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.copy" title="Link to this definition"></a></dt> |
| <dd><p>Recursively copy the file tree from the source to the destination</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>source_file_names</strong> – list of source file objects that needs to be copied</p></li> |
| <li><p><strong>destination_file_names</strong> – list of destination of the new object</p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><strong>BeamIOError</strong> – if any of the copy operations fail</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.rename"> |
| <span class="sig-name descname"><span class="pre">rename</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">source_file_names</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">destination_file_names</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.rename"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.rename" title="Link to this definition"></a></dt> |
| <dd><p>Rename the files at the source list to the destination list. |
| Source and destination lists should be of the same size.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>source_file_names</strong> – List of file paths that need to be moved</p></li> |
| <li><p><strong>destination_file_names</strong> – List of destination_file_names for the files</p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><strong>BeamIOError</strong> – if any of the rename operations fail</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.exists"> |
| <span class="sig-name descname"><span class="pre">exists</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.exists"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.exists" title="Link to this definition"></a></dt> |
| <dd><p>Check if the provided path exists on the FileSystem.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path that needs to be checked.</p> |
| </dd> |
| </dl> |
| <p>Returns: boolean flag indicating if path exists</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.size"> |
| <span class="sig-name descname"><span class="pre">size</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.size"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.size" title="Link to this definition"></a></dt> |
| <dd><p>Get size of path on the FileSystem.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path in question.</p> |
| </dd> |
| </dl> |
| <p>Returns: int size of path according to the FileSystem.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Raises<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>BeamIOError</strong> – if path doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.last_updated"> |
| <span class="sig-name descname"><span class="pre">last_updated</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.last_updated"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.last_updated" title="Link to this definition"></a></dt> |
| <dd><p>Get UNIX Epoch time in seconds on the FileSystem.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path of file.</p> |
| </dd> |
| </dl> |
| <p>Returns: float UNIX Epoch time</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Raises<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>BeamIOError</strong> – if path doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.checksum"> |
| <span class="sig-name descname"><span class="pre">checksum</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.checksum"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.checksum" title="Link to this definition"></a></dt> |
| <dd><p>Fetch checksum metadata of a file on the |
| <a class="reference internal" href="apache_beam.io.filesystem.html#apache_beam.io.filesystem.FileSystem" title="apache_beam.io.filesystem.FileSystem"><code class="xref py py-class docutils literal notranslate"><span class="pre">FileSystem</span></code></a>.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path of a file.</p> |
| </dd> |
| </dl> |
| <p>Returns: string containing file size.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Raises<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>BeamIOError</strong> – if path isn’t a file or doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.metadata"> |
| <span class="sig-name descname"><span class="pre">metadata</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.metadata"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.metadata" title="Link to this definition"></a></dt> |
| <dd><p>Fetch metadata fields of a file on the FileSystem.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>path</strong> – string path of a file.</p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="apache_beam.io.filesystem.html#apache_beam.io.filesystem.FileMetadata" title="apache_beam.io.filesystem.FileMetadata"><code class="xref py py-class docutils literal notranslate"><span class="pre">FileMetadata</span></code></a>.</p> |
| </dd> |
| <dt class="field-odd">Raises<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>BeamIOError</strong> – if path isn’t a file or doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.delete"> |
| <span class="sig-name descname"><span class="pre">delete</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">paths</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.delete"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.delete" title="Link to this definition"></a></dt> |
| <dd><p>Deletes files or directories at the provided paths. |
| Directories will be deleted recursively.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>paths</strong> – list of paths that give the file objects to be deleted</p> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><strong>BeamIOError</strong> – if any of the delete operations fail</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.localfilesystem.LocalFileSystem.report_lineage"> |
| <span class="sig-name descname"><span class="pre">report_lineage</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lineage</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/localfilesystem.html#LocalFileSystem.report_lineage"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.localfilesystem.LocalFileSystem.report_lineage" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| </section> |
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