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| lazydict |
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| <h1>encoder</h1> |
| |
| <div class="doc doc-object doc-module"> |
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| <a id="pyiceberg.avro.encoder"></a> |
| <div class="doc doc-contents first"> |
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| <div class="doc doc-object doc-class"> |
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| <h2 id="pyiceberg.avro.encoder.BinaryEncoder" class="doc doc-heading"> |
| <code>BinaryEncoder</code> |
| |
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| <a href="#pyiceberg.avro.encoder.BinaryEncoder" class="headerlink" title="Permanent link">¶</a></h2> |
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| <div class="doc doc-contents "> |
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| <p>Encodes Python physical types into bytes.</p> |
| |
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| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-25">25</a></span> |
| <span class="normal"><a href="#__codelineno-0-26">26</a></span> |
| <span class="normal"><a href="#__codelineno-0-27">27</a></span> |
| <span class="normal"><a href="#__codelineno-0-28">28</a></span> |
| <span class="normal"><a href="#__codelineno-0-29">29</a></span> |
| <span class="normal"><a href="#__codelineno-0-30">30</a></span> |
| <span class="normal"><a href="#__codelineno-0-31">31</a></span> |
| <span class="normal"><a href="#__codelineno-0-32">32</a></span> |
| <span class="normal"><a href="#__codelineno-0-33">33</a></span> |
| <span class="normal"><a href="#__codelineno-0-34">34</a></span> |
| <span class="normal"><a href="#__codelineno-0-35">35</a></span> |
| <span class="normal"><a href="#__codelineno-0-36">36</a></span> |
| <span class="normal"><a href="#__codelineno-0-37">37</a></span> |
| <span class="normal"><a href="#__codelineno-0-38">38</a></span> |
| <span class="normal"><a href="#__codelineno-0-39">39</a></span> |
| <span class="normal"><a href="#__codelineno-0-40">40</a></span> |
| <span class="normal"><a href="#__codelineno-0-41">41</a></span> |
| <span class="normal"><a href="#__codelineno-0-42">42</a></span> |
| <span class="normal"><a href="#__codelineno-0-43">43</a></span> |
| <span class="normal"><a href="#__codelineno-0-44">44</a></span> |
| <span class="normal"><a href="#__codelineno-0-45">45</a></span> |
| <span class="normal"><a href="#__codelineno-0-46">46</a></span> |
| <span class="normal"><a href="#__codelineno-0-47">47</a></span> |
| <span class="normal"><a href="#__codelineno-0-48">48</a></span> |
| <span class="normal"><a href="#__codelineno-0-49">49</a></span> |
| <span class="normal"><a href="#__codelineno-0-50">50</a></span> |
| <span class="normal"><a href="#__codelineno-0-51">51</a></span> |
| <span class="normal"><a href="#__codelineno-0-52">52</a></span> |
| <span class="normal"><a href="#__codelineno-0-53">53</a></span> |
| <span class="normal"><a href="#__codelineno-0-54">54</a></span> |
| <span class="normal"><a href="#__codelineno-0-55">55</a></span> |
| <span class="normal"><a href="#__codelineno-0-56">56</a></span> |
| <span class="normal"><a href="#__codelineno-0-57">57</a></span> |
| <span class="normal"><a href="#__codelineno-0-58">58</a></span> |
| <span class="normal"><a href="#__codelineno-0-59">59</a></span> |
| <span class="normal"><a href="#__codelineno-0-60">60</a></span> |
| <span class="normal"><a href="#__codelineno-0-61">61</a></span> |
| <span class="normal"><a href="#__codelineno-0-62">62</a></span> |
| <span class="normal"><a href="#__codelineno-0-63">63</a></span> |
| <span class="normal"><a href="#__codelineno-0-64">64</a></span> |
| <span class="normal"><a href="#__codelineno-0-65">65</a></span> |
| <span class="normal"><a href="#__codelineno-0-66">66</a></span> |
| <span class="normal"><a href="#__codelineno-0-67">67</a></span> |
| <span class="normal"><a href="#__codelineno-0-68">68</a></span> |
| <span class="normal"><a href="#__codelineno-0-69">69</a></span> |
| <span class="normal"><a href="#__codelineno-0-70">70</a></span> |
| <span class="normal"><a href="#__codelineno-0-71">71</a></span> |
| <span class="normal"><a href="#__codelineno-0-72">72</a></span> |
| <span class="normal"><a href="#__codelineno-0-73">73</a></span> |
| <span class="normal"><a href="#__codelineno-0-74">74</a></span> |
| <span class="normal"><a href="#__codelineno-0-75">75</a></span> |
| <span class="normal"><a href="#__codelineno-0-76">76</a></span> |
| <span class="normal"><a href="#__codelineno-0-77">77</a></span> |
| <span class="normal"><a href="#__codelineno-0-78">78</a></span> |
| <span class="normal"><a href="#__codelineno-0-79">79</a></span> |
| <span class="normal"><a href="#__codelineno-0-80">80</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-25" name="__codelineno-0-25"></a><span class="k">class</span><span class="w"> </span><span class="nc">BinaryEncoder</span><span class="p">:</span> |
| <a id="__codelineno-0-26" name="__codelineno-0-26"></a><span class="w"> </span><span class="sd">"""Encodes Python physical types into bytes."""</span> |
| <a id="__codelineno-0-27" name="__codelineno-0-27"></a> |
| <a id="__codelineno-0-28" name="__codelineno-0-28"></a> <span class="n">_output_stream</span><span class="p">:</span> <span class="n">OutputStream</span> |
| <a id="__codelineno-0-29" name="__codelineno-0-29"></a> |
| <a id="__codelineno-0-30" name="__codelineno-0-30"></a> <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">output_stream</span><span class="p">:</span> <span class="n">OutputStream</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-31" name="__codelineno-0-31"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_output_stream</span> <span class="o">=</span> <span class="n">output_stream</span> |
| <a id="__codelineno-0-32" name="__codelineno-0-32"></a> |
| <a id="__codelineno-0-33" name="__codelineno-0-33"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="nb">bytes</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-34" name="__codelineno-0-34"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_output_stream</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> |
| <a id="__codelineno-0-35" name="__codelineno-0-35"></a> |
| <a id="__codelineno-0-36" name="__codelineno-0-36"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_boolean</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">boolean</span><span class="p">:</span> <span class="nb">bool</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-37" name="__codelineno-0-37"></a><span class="w"> </span><span class="sd">"""Write a boolean as a single byte whose value is either 0 (false) or 1 (true).</span> |
| <a id="__codelineno-0-38" name="__codelineno-0-38"></a> |
| <a id="__codelineno-0-39" name="__codelineno-0-39"></a><span class="sd"> Args:</span> |
| <a id="__codelineno-0-40" name="__codelineno-0-40"></a><span class="sd"> boolean: The boolean to write.</span> |
| <a id="__codelineno-0-41" name="__codelineno-0-41"></a><span class="sd"> """</span> |
| <a id="__codelineno-0-42" name="__codelineno-0-42"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([</span><span class="nb">bool</span><span class="p">(</span><span class="n">boolean</span><span class="p">)]))</span> |
| <a id="__codelineno-0-43" name="__codelineno-0-43"></a> |
| <a id="__codelineno-0-44" name="__codelineno-0-44"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_int</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">integer</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-45" name="__codelineno-0-45"></a><span class="w"> </span><span class="sd">"""Integer and long values are written using variable-length zig-zag coding."""</span> |
| <a id="__codelineno-0-46" name="__codelineno-0-46"></a> <span class="n">datum</span> <span class="o">=</span> <span class="p">(</span><span class="n">integer</span> <span class="o"><<</span> <span class="mi">1</span><span class="p">)</span> <span class="o">^</span> <span class="p">(</span><span class="n">integer</span> <span class="o">>></span> <span class="mi">63</span><span class="p">)</span> |
| <a id="__codelineno-0-47" name="__codelineno-0-47"></a> <span class="k">while</span> <span class="p">(</span><span class="n">datum</span> <span class="o">&</span> <span class="o">~</span><span class="mh">0x7F</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span> |
| <a id="__codelineno-0-48" name="__codelineno-0-48"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([(</span><span class="n">datum</span> <span class="o">&</span> <span class="mh">0x7F</span><span class="p">)</span> <span class="o">|</span> <span class="mh">0x80</span><span class="p">]))</span> |
| <a id="__codelineno-0-49" name="__codelineno-0-49"></a> <span class="n">datum</span> <span class="o">>>=</span> <span class="mi">7</span> |
| <a id="__codelineno-0-50" name="__codelineno-0-50"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([</span><span class="n">datum</span><span class="p">]))</span> |
| <a id="__codelineno-0-51" name="__codelineno-0-51"></a> |
| <a id="__codelineno-0-52" name="__codelineno-0-52"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_float</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">f</span><span class="p">:</span> <span class="nb">float</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-53" name="__codelineno-0-53"></a><span class="w"> </span><span class="sd">"""Write a float as 4 bytes."""</span> |
| <a id="__codelineno-0-54" name="__codelineno-0-54"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">STRUCT_FLOAT</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">f</span><span class="p">))</span> |
| <a id="__codelineno-0-55" name="__codelineno-0-55"></a> |
| <a id="__codelineno-0-56" name="__codelineno-0-56"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_double</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">f</span><span class="p">:</span> <span class="nb">float</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-57" name="__codelineno-0-57"></a><span class="w"> </span><span class="sd">"""Write a double as 8 bytes."""</span> |
| <a id="__codelineno-0-58" name="__codelineno-0-58"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">STRUCT_DOUBLE</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">f</span><span class="p">))</span> |
| <a id="__codelineno-0-59" name="__codelineno-0-59"></a> |
| <a id="__codelineno-0-60" name="__codelineno-0-60"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_bytes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="nb">bytes</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-61" name="__codelineno-0-61"></a><span class="w"> </span><span class="sd">"""Bytes are encoded as a long followed by that many bytes of data."""</span> |
| <a id="__codelineno-0-62" name="__codelineno-0-62"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write_int</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">b</span><span class="p">))</span> |
| <a id="__codelineno-0-63" name="__codelineno-0-63"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> |
| <a id="__codelineno-0-64" name="__codelineno-0-64"></a> |
| <a id="__codelineno-0-65" name="__codelineno-0-65"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_utf8</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-66" name="__codelineno-0-66"></a><span class="w"> </span><span class="sd">"""Encode a string as a long followed by that many bytes of UTF-8 encoded character data."""</span> |
| <a id="__codelineno-0-67" name="__codelineno-0-67"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write_bytes</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="n">UTF8</span><span class="p">))</span> |
| <a id="__codelineno-0-68" name="__codelineno-0-68"></a> |
| <a id="__codelineno-0-69" name="__codelineno-0-69"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_uuid</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uuid</span><span class="p">:</span> <span class="n">UUID</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-70" name="__codelineno-0-70"></a><span class="w"> </span><span class="sd">"""Write UUID as a fixed[16].</span> |
| <a id="__codelineno-0-71" name="__codelineno-0-71"></a> |
| <a id="__codelineno-0-72" name="__codelineno-0-72"></a><span class="sd"> The uuid logical type represents a random generated universally unique identifier (UUID).</span> |
| <a id="__codelineno-0-73" name="__codelineno-0-73"></a><span class="sd"> An uuid logical type annotates an Avro string. The string has to conform with RFC-4122.</span> |
| <a id="__codelineno-0-74" name="__codelineno-0-74"></a><span class="sd"> """</span> |
| <a id="__codelineno-0-75" name="__codelineno-0-75"></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">16</span><span class="p">:</span> |
| <a id="__codelineno-0-76" name="__codelineno-0-76"></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Expected UUID to have 16 bytes, got: len(</span><span class="si">{</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="si">!r}</span><span class="s2">)"</span><span class="p">)</span> |
| <a id="__codelineno-0-77" name="__codelineno-0-77"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="p">)</span> |
| <a id="__codelineno-0-78" name="__codelineno-0-78"></a> |
| <a id="__codelineno-0-79" name="__codelineno-0-79"></a> <span class="k">def</span><span class="w"> </span><span class="nf">write_unknown</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-80" name="__codelineno-0-80"></a><span class="w"> </span><span class="sd">"""Nulls are written as 0 bytes in avro, so we do nothing."""</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| |
| |
| |
| <div class="doc doc-children"> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_boolean" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_boolean</span><span class="p">(</span><span class="n">boolean</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_boolean" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Write a boolean as a single byte whose value is either 0 (false) or 1 (true).</p> |
| |
| |
| <p><span class="doc-section-title">Parameters:</span></p> |
| <table> |
| <thead> |
| <tr> |
| <th>Name</th> |
| <th>Type</th> |
| <th>Description</th> |
| <th>Default</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="doc-section-item"> |
| <td> |
| <code>boolean</code> |
| </td> |
| <td> |
| <code><span title="bool">bool</span></code> |
| </td> |
| <td> |
| <div class="doc-md-description"> |
| <p>The boolean to write.</p> |
| </div> |
| </td> |
| <td> |
| <em>required</em> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-36">36</a></span> |
| <span class="normal"><a href="#__codelineno-0-37">37</a></span> |
| <span class="normal"><a href="#__codelineno-0-38">38</a></span> |
| <span class="normal"><a href="#__codelineno-0-39">39</a></span> |
| <span class="normal"><a href="#__codelineno-0-40">40</a></span> |
| <span class="normal"><a href="#__codelineno-0-41">41</a></span> |
| <span class="normal"><a href="#__codelineno-0-42">42</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-36" name="__codelineno-0-36"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_boolean</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">boolean</span><span class="p">:</span> <span class="nb">bool</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-37" name="__codelineno-0-37"></a><span class="w"> </span><span class="sd">"""Write a boolean as a single byte whose value is either 0 (false) or 1 (true).</span> |
| <a id="__codelineno-0-38" name="__codelineno-0-38"></a> |
| <a id="__codelineno-0-39" name="__codelineno-0-39"></a><span class="sd"> Args:</span> |
| <a id="__codelineno-0-40" name="__codelineno-0-40"></a><span class="sd"> boolean: The boolean to write.</span> |
| <a id="__codelineno-0-41" name="__codelineno-0-41"></a><span class="sd"> """</span> |
| <a id="__codelineno-0-42" name="__codelineno-0-42"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([</span><span class="nb">bool</span><span class="p">(</span><span class="n">boolean</span><span class="p">)]))</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_bytes" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_bytes</span><span class="p">(</span><span class="n">b</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_bytes" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Bytes are encoded as a long followed by that many bytes of data.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-60">60</a></span> |
| <span class="normal"><a href="#__codelineno-0-61">61</a></span> |
| <span class="normal"><a href="#__codelineno-0-62">62</a></span> |
| <span class="normal"><a href="#__codelineno-0-63">63</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-60" name="__codelineno-0-60"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_bytes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="nb">bytes</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-61" name="__codelineno-0-61"></a><span class="w"> </span><span class="sd">"""Bytes are encoded as a long followed by that many bytes of data."""</span> |
| <a id="__codelineno-0-62" name="__codelineno-0-62"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write_int</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">b</span><span class="p">))</span> |
| <a id="__codelineno-0-63" name="__codelineno-0-63"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_double" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_double</span><span class="p">(</span><span class="n">f</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_double" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Write a double as 8 bytes.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-56">56</a></span> |
| <span class="normal"><a href="#__codelineno-0-57">57</a></span> |
| <span class="normal"><a href="#__codelineno-0-58">58</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-56" name="__codelineno-0-56"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_double</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">f</span><span class="p">:</span> <span class="nb">float</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-57" name="__codelineno-0-57"></a><span class="w"> </span><span class="sd">"""Write a double as 8 bytes."""</span> |
| <a id="__codelineno-0-58" name="__codelineno-0-58"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">STRUCT_DOUBLE</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">f</span><span class="p">))</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_float" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_float</span><span class="p">(</span><span class="n">f</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_float" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Write a float as 4 bytes.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-52">52</a></span> |
| <span class="normal"><a href="#__codelineno-0-53">53</a></span> |
| <span class="normal"><a href="#__codelineno-0-54">54</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-52" name="__codelineno-0-52"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_float</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">f</span><span class="p">:</span> <span class="nb">float</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-53" name="__codelineno-0-53"></a><span class="w"> </span><span class="sd">"""Write a float as 4 bytes."""</span> |
| <a id="__codelineno-0-54" name="__codelineno-0-54"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">STRUCT_FLOAT</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">f</span><span class="p">))</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_int" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_int</span><span class="p">(</span><span class="n">integer</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_int" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Integer and long values are written using variable-length zig-zag coding.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-44">44</a></span> |
| <span class="normal"><a href="#__codelineno-0-45">45</a></span> |
| <span class="normal"><a href="#__codelineno-0-46">46</a></span> |
| <span class="normal"><a href="#__codelineno-0-47">47</a></span> |
| <span class="normal"><a href="#__codelineno-0-48">48</a></span> |
| <span class="normal"><a href="#__codelineno-0-49">49</a></span> |
| <span class="normal"><a href="#__codelineno-0-50">50</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-44" name="__codelineno-0-44"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_int</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">integer</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-45" name="__codelineno-0-45"></a><span class="w"> </span><span class="sd">"""Integer and long values are written using variable-length zig-zag coding."""</span> |
| <a id="__codelineno-0-46" name="__codelineno-0-46"></a> <span class="n">datum</span> <span class="o">=</span> <span class="p">(</span><span class="n">integer</span> <span class="o"><<</span> <span class="mi">1</span><span class="p">)</span> <span class="o">^</span> <span class="p">(</span><span class="n">integer</span> <span class="o">>></span> <span class="mi">63</span><span class="p">)</span> |
| <a id="__codelineno-0-47" name="__codelineno-0-47"></a> <span class="k">while</span> <span class="p">(</span><span class="n">datum</span> <span class="o">&</span> <span class="o">~</span><span class="mh">0x7F</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span> |
| <a id="__codelineno-0-48" name="__codelineno-0-48"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([(</span><span class="n">datum</span> <span class="o">&</span> <span class="mh">0x7F</span><span class="p">)</span> <span class="o">|</span> <span class="mh">0x80</span><span class="p">]))</span> |
| <a id="__codelineno-0-49" name="__codelineno-0-49"></a> <span class="n">datum</span> <span class="o">>>=</span> <span class="mi">7</span> |
| <a id="__codelineno-0-50" name="__codelineno-0-50"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="nb">bytes</span><span class="p">([</span><span class="n">datum</span><span class="p">]))</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_unknown" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_unknown</span><span class="p">(</span><span class="n">_</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_unknown" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Nulls are written as 0 bytes in avro, so we do nothing.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-79">79</a></span> |
| <span class="normal"><a href="#__codelineno-0-80">80</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-79" name="__codelineno-0-79"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_unknown</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-80" name="__codelineno-0-80"></a><span class="w"> </span><span class="sd">"""Nulls are written as 0 bytes in avro, so we do nothing."""</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_utf8" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_utf8</span><span class="p">(</span><span class="n">s</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_utf8" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Encode a string as a long followed by that many bytes of UTF-8 encoded character data.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-65">65</a></span> |
| <span class="normal"><a href="#__codelineno-0-66">66</a></span> |
| <span class="normal"><a href="#__codelineno-0-67">67</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-65" name="__codelineno-0-65"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_utf8</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-66" name="__codelineno-0-66"></a><span class="w"> </span><span class="sd">"""Encode a string as a long followed by that many bytes of UTF-8 encoded character data."""</span> |
| <a id="__codelineno-0-67" name="__codelineno-0-67"></a> <span class="bp">self</span><span class="o">.</span><span class="n">write_bytes</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="n">UTF8</span><span class="p">))</span> |
| </code></pre></div></td></tr></table></div> |
| </details> |
| </div> |
| |
| </div> |
| |
| <div class="doc doc-object doc-function"> |
| |
| |
| <h3 id="pyiceberg.avro.encoder.BinaryEncoder.write_uuid" class="doc doc-heading"> |
| <code class="highlight language-python"><span class="n">write_uuid</span><span class="p">(</span><span class="n">uuid</span><span class="p">)</span></code> |
| |
| <a href="#pyiceberg.avro.encoder.BinaryEncoder.write_uuid" class="headerlink" title="Permanent link">¶</a></h3> |
| |
| |
| <div class="doc doc-contents "> |
| |
| <p>Write UUID as a fixed[16].</p> |
| <p>The uuid logical type represents a random generated universally unique identifier (UUID). |
| An uuid logical type annotates an Avro string. The string has to conform with RFC-4122.</p> |
| |
| |
| <details class="quote"> |
| <summary>Source code in <code>pyiceberg/avro/encoder.py</code></summary> |
| <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-69">69</a></span> |
| <span class="normal"><a href="#__codelineno-0-70">70</a></span> |
| <span class="normal"><a href="#__codelineno-0-71">71</a></span> |
| <span class="normal"><a href="#__codelineno-0-72">72</a></span> |
| <span class="normal"><a href="#__codelineno-0-73">73</a></span> |
| <span class="normal"><a href="#__codelineno-0-74">74</a></span> |
| <span class="normal"><a href="#__codelineno-0-75">75</a></span> |
| <span class="normal"><a href="#__codelineno-0-76">76</a></span> |
| <span class="normal"><a href="#__codelineno-0-77">77</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-69" name="__codelineno-0-69"></a><span class="k">def</span><span class="w"> </span><span class="nf">write_uuid</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uuid</span><span class="p">:</span> <span class="n">UUID</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <a id="__codelineno-0-70" name="__codelineno-0-70"></a><span class="w"> </span><span class="sd">"""Write UUID as a fixed[16].</span> |
| <a id="__codelineno-0-71" name="__codelineno-0-71"></a> |
| <a id="__codelineno-0-72" name="__codelineno-0-72"></a><span class="sd"> The uuid logical type represents a random generated universally unique identifier (UUID).</span> |
| <a id="__codelineno-0-73" name="__codelineno-0-73"></a><span class="sd"> An uuid logical type annotates an Avro string. The string has to conform with RFC-4122.</span> |
| <a id="__codelineno-0-74" name="__codelineno-0-74"></a><span class="sd"> """</span> |
| <a id="__codelineno-0-75" name="__codelineno-0-75"></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">16</span><span class="p">:</span> |
| <a id="__codelineno-0-76" name="__codelineno-0-76"></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Expected UUID to have 16 bytes, got: len(</span><span class="si">{</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="si">!r}</span><span class="s2">)"</span><span class="p">)</span> |
| <a id="__codelineno-0-77" name="__codelineno-0-77"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">uuid</span><span class="o">.</span><span class="n">bytes</span><span class="p">)</span> |
| </code></pre></div></td></tr></table></div> |
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