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  <div class="section" id="module-airflow.contrib.hooks.azure_data_lake_hook">
<span id="airflow-contrib-hooks-azure-data-lake-hook"></span><h1><a class="reference internal" href="#module-airflow.contrib.hooks.azure_data_lake_hook" title="airflow.contrib.hooks.azure_data_lake_hook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.contrib.hooks.azure_data_lake_hook</span></code></a><a class="headerlink" href="#module-airflow.contrib.hooks.azure_data_lake_hook" title="Permalink to this headline">¶</a></h1>
<div class="section" id="module-contents">
<h2>Module Contents<a class="headerlink" href="#module-contents" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook">
<em class="property">class </em><code class="sig-prename descclassname">airflow.contrib.hooks.azure_data_lake_hook.</code><code class="sig-name descname">AzureDataLakeHook</code><span class="sig-paren">(</span><em class="sig-param">azure_data_lake_conn_id='azure_data_lake_default'</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="../../../hooks/base_hook/index.html#airflow.hooks.base_hook.BaseHook" title="airflow.hooks.base_hook.BaseHook"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.hooks.base_hook.BaseHook</span></code></a></p>
<p>Interacts with Azure Data Lake.</p>
<p>Client ID and client secret should be in user and password parameters.
Tenant and account name should be extra field as
{“tenant”: “&lt;TENANT&gt;”, “account_name”: “ACCOUNT_NAME”}.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>azure_data_lake_conn_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Reference to the Azure Data Lake connection.</p>
</dd>
</dl>
<dl class="method">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.get_conn">
<code class="sig-name descname">get_conn</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook.get_conn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.get_conn" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a AzureDLFileSystem object.</p>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.check_for_file">
<code class="sig-name descname">check_for_file</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">file_path</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook.check_for_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.check_for_file" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if a file exists on Azure Data Lake.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>file_path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Path and name of the file.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>True if the file exists, False otherwise.</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)">bool</a></p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.upload_file">
<code class="sig-name descname">upload_file</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">local_path</em>, <em class="sig-param">remote_path</em>, <em class="sig-param">nthreads=64</em>, <em class="sig-param">overwrite=True</em>, <em class="sig-param">buffersize=4194304</em>, <em class="sig-param">blocksize=4194304</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook.upload_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.upload_file" title="Permalink to this definition">¶</a></dt>
<dd><p>Upload a file to Azure Data Lake.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>local_path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – local path. Can be single file, directory (in which case,
upload recursively) or glob pattern. Recursive glob patterns using <cite>**</cite>
are not supported.</p></li>
<li><p><strong>remote_path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Remote path to upload to; if multiple files, this is the
directory root to write within.</p></li>
<li><p><strong>nthreads</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – Number of threads to use. If None, uses the number of cores.</p></li>
<li><p><strong>overwrite</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Whether to forcibly overwrite existing files/directories.
If False and remote path is a directory, will quit regardless if any files
would be overwritten or not. If True, only matching filenames are actually
overwritten.</p></li>
<li><p><strong>buffersize</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – int [2**22]
Number of bytes for internal buffer. This block cannot be bigger than
a chunk and cannot be smaller than a block.</p></li>
<li><p><strong>blocksize</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – int [2**22]
Number of bytes for a block. Within each chunk, we write a smaller
block for each API call. This block cannot be bigger than a chunk.</p></li>
</ul>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.download_file">
<code class="sig-name descname">download_file</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">local_path</em>, <em class="sig-param">remote_path</em>, <em class="sig-param">nthreads=64</em>, <em class="sig-param">overwrite=True</em>, <em class="sig-param">buffersize=4194304</em>, <em class="sig-param">blocksize=4194304</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook.download_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.download_file" title="Permalink to this definition">¶</a></dt>
<dd><p>Download a file from Azure Blob Storage.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>local_path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – local path. If downloading a single file, will write to this
specific file, unless it is an existing directory, in which case a file is
created within it. If downloading multiple files, this is the root
directory to write within. Will create directories as required.</p></li>
<li><p><strong>remote_path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – remote path/globstring to use to find remote files.
Recursive glob patterns using <cite>**</cite> are not supported.</p></li>
<li><p><strong>nthreads</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – Number of threads to use. If None, uses the number of cores.</p></li>
<li><p><strong>overwrite</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Whether to forcibly overwrite existing files/directories.
If False and remote path is a directory, will quit regardless if any files
would be overwritten or not. If True, only matching filenames are actually
overwritten.</p></li>
<li><p><strong>buffersize</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – int [2**22]
Number of bytes for internal buffer. This block cannot be bigger than
a chunk and cannot be smaller than a block.</p></li>
<li><p><strong>blocksize</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – int [2**22]
Number of bytes for a block. Within each chunk, we write a smaller
block for each API call. This block cannot be bigger than a chunk.</p></li>
</ul>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.list">
<code class="sig-name descname">list</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">path</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/azure_data_lake_hook.html#AzureDataLakeHook.list"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.azure_data_lake_hook.AzureDataLakeHook.list" title="Permalink to this definition">¶</a></dt>
<dd><p>List files in Azure Data Lake Storage</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>path</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – full path/globstring to use to list files in ADLS</p>
</dd>
</dl>
</dd></dl>

</dd></dl>

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