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| |
| <section id="module-apache_beam.io.hadoopfilesystem"> |
| <span id="apache-beam-io-hadoopfilesystem-module"></span><h1>apache_beam.io.hadoopfilesystem module<a class="headerlink" href="#module-apache_beam.io.hadoopfilesystem" title="Link to this heading"></a></h1> |
| <p><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> implementation for accessing |
| Hadoop Distributed File System files.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.io.hadoopfilesystem.</span></span><span class="sig-name descname"><span class="pre">HadoopFileSystem</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/hadoopfilesystem.html#HadoopFileSystem"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem" 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><code class="docutils literal notranslate"><span class="pre">FileSystem</span></code> implementation that supports HDFS.</p> |
| <p>URL arguments to methods expect strings starting with <code class="docutils literal notranslate"><span class="pre">hdfs://</span></code>.</p> |
| <p>Initializes a connection to HDFS.</p> |
| <p>Connection configuration is done by passing pipeline options. |
| See <a class="reference internal" href="apache_beam.options.pipeline_options.html#apache_beam.options.pipeline_options.HadoopFileSystemOptions" title="apache_beam.options.pipeline_options.HadoopFileSystemOptions"><code class="xref py py-class docutils literal notranslate"><span class="pre">HadoopFileSystemOptions</span></code></a>.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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/hadoopfilesystem.html#HadoopFileSystem.scheme"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.scheme" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">base_url</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/hadoopfilesystem.html#HadoopFileSystem.join"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.join" title="Link to this definition"></a></dt> |
| <dd><p>Join two or more pathname components.</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>base_url</strong> – string path of the first component of the path. |
| Must start with hdfs://.</p></li> |
| <li><p><strong>paths</strong> – path components to be added</p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>Full url after combining all the passed components.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.split"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.split" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.mkdirs"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.mkdirs" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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/hadoopfilesystem.html#HadoopFileSystem.has_dirs"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.has_dirs" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</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/hadoopfilesystem.html#HadoopFileSystem.create"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.create" title="Link to this definition"></a></dt> |
| <dd><dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><p>A Python File-like object.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</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/hadoopfilesystem.html#HadoopFileSystem.open"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.open" title="Link to this definition"></a></dt> |
| <dd><dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><p>A Python File-like object.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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/hadoopfilesystem.html#HadoopFileSystem.copy"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.copy" title="Link to this definition"></a></dt> |
| <dd><p>It is an error if any file to copy already exists at the destination.</p> |
| <p>Raises <code class="docutils literal notranslate"><span class="pre">BeamIOError</span></code> if any error occurred.</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> – iterable of URLs.</p></li> |
| <li><p><strong>destination_file_names</strong> – iterable of URLs.</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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/hadoopfilesystem.html#HadoopFileSystem.rename"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.rename" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a></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/functions.html#bool" title="(in Python v3.13)"><span class="pre">bool</span></a></span></span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.exists"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.exists" title="Link to this definition"></a></dt> |
| <dd><p>Checks existence of url in HDFS.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>url</strong> – String in the form hdfs://…</p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>True if url exists as a file or directory in HDFS.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.size"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.size" title="Link to this definition"></a></dt> |
| <dd><p>Fetches file size for a URL.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><p>int size of path according to the FileSystem.</p> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><strong>BeamIOError</strong> – if url doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.last_updated"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.last_updated" title="Link to this definition"></a></dt> |
| <dd><p>Fetches last updated time for a URL.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>url</strong> – string url 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.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.checksum"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.checksum" title="Link to this definition"></a></dt> |
| <dd><p>Fetches a checksum description for a URL.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><p>String describing the checksum.</p> |
| </dd> |
| <dt class="field-even">Raises<span class="colon">:</span></dt> |
| <dd class="field-even"><p><strong>BeamIOError</strong> – if url doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">url</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.metadata"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.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>url</strong> – string url 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 url doesn’t exist.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.hadoopfilesystem.HadoopFileSystem.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">urls</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/hadoopfilesystem.html#HadoopFileSystem.delete"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.hadoopfilesystem.HadoopFileSystem.delete" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
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