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<li class="navelem"><b>iceberg</b></li><li class="navelem"><a class="el" href="classiceberg_1_1TransformUtil.html">TransformUtil</a></li> </ul>
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<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
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<div class="headertitle"><div class="title">iceberg::TransformUtil Class Reference</div></div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-static-methods" name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a9e5317a2b55d0b9d64a13ab9510b6ce3" id="r_a9e5317a2b55d0b9d64a13ab9510b6ce3"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a9e5317a2b55d0b9d64a13ab9510b6ce3">HumanYear</a> (int32_t year)</td></tr>
<tr class="memdesc:a9e5317a2b55d0b9d64a13ab9510b6ce3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a human-readable string for a year. <br /></td></tr>
<tr class="separator:a9e5317a2b55d0b9d64a13ab9510b6ce3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4f3a5607a2e2b5edce632fbbc22e76af" id="r_a4f3a5607a2e2b5edce632fbbc22e76af"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a4f3a5607a2e2b5edce632fbbc22e76af">HumanMonth</a> (int32_t month)</td></tr>
<tr class="memdesc:a4f3a5607a2e2b5edce632fbbc22e76af"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a human-readable string for a month. <br /></td></tr>
<tr class="separator:a4f3a5607a2e2b5edce632fbbc22e76af"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af63c12a708200acf8c579916bf687d95" id="r_af63c12a708200acf8c579916bf687d95"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#af63c12a708200acf8c579916bf687d95">HumanDay</a> (int32_t day_ordinal)</td></tr>
<tr class="memdesc:af63c12a708200acf8c579916bf687d95"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a human-readable string for the given day ordinal. <br /></td></tr>
<tr class="separator:af63c12a708200acf8c579916bf687d95"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5737dcb152c45aab8e67ba7aed0e38e0" id="r_a5737dcb152c45aab8e67ba7aed0e38e0"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a5737dcb152c45aab8e67ba7aed0e38e0">HumanHour</a> (int32_t hour_ordinal)</td></tr>
<tr class="memdesc:a5737dcb152c45aab8e67ba7aed0e38e0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a human-readable string for the given hour ordinal. <br /></td></tr>
<tr class="separator:a5737dcb152c45aab8e67ba7aed0e38e0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6316ac666a48e161265326f2ffb4f2c1" id="r_a6316ac666a48e161265326f2ffb4f2c1"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a6316ac666a48e161265326f2ffb4f2c1">HumanTime</a> (int64_t micros_from_midnight)</td></tr>
<tr class="memdesc:a6316ac666a48e161265326f2ffb4f2c1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Outputs this time as a String, such as 10:15. <br /></td></tr>
<tr class="separator:a6316ac666a48e161265326f2ffb4f2c1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a972354a52e40d336f46b83771526e912" id="r_a972354a52e40d336f46b83771526e912"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a972354a52e40d336f46b83771526e912">HumanTimestamp</a> (int64_t timestamp_micros)</td></tr>
<tr class="memdesc:a972354a52e40d336f46b83771526e912"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a string representation of a timestamp in microseconds. <br /></td></tr>
<tr class="separator:a972354a52e40d336f46b83771526e912"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af34308c5bd43562588b0dde9a28e4fc4" id="r_af34308c5bd43562588b0dde9a28e4fc4"><td class="memItemLeft" align="right" valign="top">static std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#af34308c5bd43562588b0dde9a28e4fc4">HumanTimestampWithZone</a> (int64_t timestamp_micros)</td></tr>
<tr class="memdesc:af34308c5bd43562588b0dde9a28e4fc4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a human-readable string representation of a timestamp with a time zone. <br /></td></tr>
<tr class="separator:af34308c5bd43562588b0dde9a28e4fc4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9e561c6085c6dfeeb3bc92b3c07b31c3" id="r_a9e561c6085c6dfeeb3bc92b3c07b31c3"><td class="memItemLeft" align="right" valign="top">static Result&lt; int32_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a9e561c6085c6dfeeb3bc92b3c07b31c3">ParseDay</a> (std::string_view str)</td></tr>
<tr class="memdesc:a9e561c6085c6dfeeb3bc92b3c07b31c3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parses a date string in "[+-]yyyy-MM-dd" format into days since epoch. <br /></td></tr>
<tr class="separator:a9e561c6085c6dfeeb3bc92b3c07b31c3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a86861abdd92237b6aecdd7660a9cde91" id="r_a86861abdd92237b6aecdd7660a9cde91"><td class="memItemLeft" align="right" valign="top">static Result&lt; int64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a86861abdd92237b6aecdd7660a9cde91">ParseTime</a> (std::string_view str)</td></tr>
<tr class="memdesc:a86861abdd92237b6aecdd7660a9cde91"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parses a time string into microseconds from midnight. <br /></td></tr>
<tr class="separator:a86861abdd92237b6aecdd7660a9cde91"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8cd38e6fb9d303835da9cf1944ac0f86" id="r_a8cd38e6fb9d303835da9cf1944ac0f86"><td class="memItemLeft" align="right" valign="top">static Result&lt; int64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a8cd38e6fb9d303835da9cf1944ac0f86">ParseTimestamp</a> (std::string_view str)</td></tr>
<tr class="memdesc:a8cd38e6fb9d303835da9cf1944ac0f86"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parses a timestamp string into microseconds since epoch. <br /></td></tr>
<tr class="separator:a8cd38e6fb9d303835da9cf1944ac0f86"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2931804944c77470187b77602489d8ee" id="r_a2931804944c77470187b77602489d8ee"><td class="memItemLeft" align="right" valign="top">static Result&lt; int64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1TransformUtil.html#a2931804944c77470187b77602489d8ee">ParseTimestampWithZone</a> (std::string_view str)</td></tr>
<tr class="memdesc:a2931804944c77470187b77602489d8ee"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parses a timestamp-with-zone string into microseconds since epoch (UTC). <br /></td></tr>
<tr class="separator:a2931804944c77470187b77602489d8ee"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae9b9b466b8f4d7877b79b23666c64523" id="r_ae9b9b466b8f4d7877b79b23666c64523"><td class="memItemLeft" align="right" valign="top"><a id="ae9b9b466b8f4d7877b79b23666c64523" name="ae9b9b466b8f4d7877b79b23666c64523"></a>
static std::string&#160;</td><td class="memItemRight" valign="bottom"><b>Base64Encode</b> (std::string_view str_to_encode)</td></tr>
<tr class="memdesc:ae9b9b466b8f4d7877b79b23666c64523"><td class="mdescLeft">&#160;</td><td class="mdescRight">Base64 encode a string. <br /></td></tr>
<tr class="separator:ae9b9b466b8f4d7877b79b23666c64523"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="af63c12a708200acf8c579916bf687d95" name="af63c12a708200acf8c579916bf687d95"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af63c12a708200acf8c579916bf687d95">&#9670;&#160;</a></span>HumanDay()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanDay </td>
<td>(</td>
<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>day_ordinal</em></td><td>)</td>
<td></td>
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<p>Returns a human-readable string for the given day ordinal. </p>
<p>The string is formatted as: <code>yyyy-MM-dd</code>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">day_ordinal</td><td>The day ordinal. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A human-readable string for the given day ordinal. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a5737dcb152c45aab8e67ba7aed0e38e0">&#9670;&#160;</a></span>HumanHour()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanHour </td>
<td>(</td>
<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>hour_ordinal</em></td><td>)</td>
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<p>Returns a human-readable string for the given hour ordinal. </p>
<p>The string is formatted as: <code>yyyy-MM-dd-HH</code>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">hour_ordinal</td><td>The hour ordinal. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A human-readable string for the given hour ordinal. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a4f3a5607a2e2b5edce632fbbc22e76af">&#9670;&#160;</a></span>HumanMonth()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanMonth </td>
<td>(</td>
<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>month</em></td><td>)</td>
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<p>Returns a human-readable string for a month. </p>
<p>The string is formatted as "yyyy-MM".</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">month</td><td>The month to format. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A human-readable string for the month. </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6316ac666a48e161265326f2ffb4f2c1">&#9670;&#160;</a></span>HumanTime()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanTime </td>
<td>(</td>
<td class="paramtype">int64_t&#160;</td>
<td class="paramname"><em>micros_from_midnight</em></td><td>)</td>
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<p>Outputs this time as a String, such as 10:15. </p>
<p>The output will be one of the following ISO-8601 formats: HH:mm HH:mm:ss HH:mm:ss.SSS HH:mm:ss.SSSSSS The format used will be the shortest that outputs the full value of the time where the omitted parts are implied to be zero.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">microseconds_from_midnight</td><td>the time in microseconds from midnight </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a string representation of this time </dd></dl>
</div>
</div>
<a id="a972354a52e40d336f46b83771526e912" name="a972354a52e40d336f46b83771526e912"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a972354a52e40d336f46b83771526e912">&#9670;&#160;</a></span>HumanTimestamp()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanTimestamp </td>
<td>(</td>
<td class="paramtype">int64_t&#160;</td>
<td class="paramname"><em>timestamp_micros</em></td><td>)</td>
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<p>Returns a string representation of a timestamp in microseconds. </p>
<p>The output will be one of the following forms, according to the precision of the timestamp:</p><ul>
<li>yyyy-MM-ddTHH:mm:ss</li>
<li>yyyy-MM-ddTHH:mm:ss.SSS</li>
<li>yyyy-MM-ddTHH:mm:ss.SSSSSS</li>
</ul>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">timestamp_micros</td><td>the timestamp in microseconds. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a string representation of this timestamp. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#af34308c5bd43562588b0dde9a28e4fc4">&#9670;&#160;</a></span>HumanTimestampWithZone()</h2>
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<td class="memname">std::string iceberg::TransformUtil::HumanTimestampWithZone </td>
<td>(</td>
<td class="paramtype">int64_t&#160;</td>
<td class="paramname"><em>timestamp_micros</em></td><td>)</td>
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<p>Returns a human-readable string representation of a timestamp with a time zone. </p>
<p>The output will be one of the following forms, according to the precision of the timestamp:</p><ul>
<li>yyyy-MM-ddTHH:mm:ss+00:00</li>
<li>yyyy-MM-ddTHH:mm:ss.SSS+00:00</li>
<li>yyyy-MM-ddTHH:mm:ss.SSSSSS+00:00</li>
</ul>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">timestamp_micros</td><td>the timestamp in microseconds. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a string representation of this timestamp. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a9e5317a2b55d0b9d64a13ab9510b6ce3">&#9670;&#160;</a></span>HumanYear()</h2>
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<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>year</em></td><td>)</td>
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<p>Returns a human-readable string for a year. </p>
<p>The string is formatted as "yyyy".</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">year</td><td>The year to format. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A human-readable string for the year. </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a9e561c6085c6dfeeb3bc92b3c07b31c3">&#9670;&#160;</a></span>ParseDay()</h2>
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<td class="memname">Result&lt; int32_t &gt; iceberg::TransformUtil::ParseDay </td>
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<p>Parses a date string in "[+-]yyyy-MM-dd" format into days since epoch. </p>
<p>Supports an optional '+' or '-' prefix for extended years beyond 9999.</p>
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<tr><td class="paramname">str</td><td>The date string to parse. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The number of days since 1970-01-01, or an error. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a86861abdd92237b6aecdd7660a9cde91">&#9670;&#160;</a></span>ParseTime()</h2>
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<td class="memname">Result&lt; int64_t &gt; iceberg::TransformUtil::ParseTime </td>
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<td class="paramname"><em>str</em></td><td>)</td>
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<p>Parses a time string into microseconds from midnight. </p>
<p>Accepts ISO-8601 local time formats: "HH:mm", "HH:mm:ss", or "HH:mm:ss.f" where the fractional part can be 1-9 digits. Digits beyond 6 (microsecond precision) are truncated.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">str</td><td>The time string to parse. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The number of microseconds from midnight, or an error. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a8cd38e6fb9d303835da9cf1944ac0f86">&#9670;&#160;</a></span>ParseTimestamp()</h2>
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<p>Parses a timestamp string into microseconds since epoch. </p>
<p>Accepts ISO-8601 local date-time formats: "yyyy-MM-ddTHH:mm", "yyyy-MM-ddTHH:mm:ss", or "yyyy-MM-ddTHH:mm:ss.f" where the fractional part can be 1-9 digits (truncated to microseconds).</p>
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<tr><td class="paramname">str</td><td>The timestamp string to parse. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The number of microseconds since epoch, or an error. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a2931804944c77470187b77602489d8ee">&#9670;&#160;</a></span>ParseTimestampWithZone()</h2>
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<p>Parses a timestamp-with-zone string into microseconds since epoch (UTC). </p>
<p>Accepts the same formats as ParseTimestamp, with a timezone suffix: "Z", "+HH:mm", or "-HH:mm". Non-UTC offsets are converted to UTC. The seconds and fractional parts are optional (e.g. "yyyy-MM-ddTHH:mm+00:00").</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">str</td><td>The timestamp string to parse. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The number of microseconds since epoch (UTC), or an error. </dd></dl>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>iceberg/util/<a class="el" href="transform__util_8h_source.html">transform_util.h</a></li>
<li>iceberg/util/<b>transform_util.cc</b></li>
</ul>
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