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<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#addmeta" class="md-nav__link">
addMeta
</a>
<nav class="md-nav" aria-label="addMeta">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#timestamp" class="md-nav__link">
timestamp
</a>
</li>
<li class="md-nav__item">
<a href="#pipelinename" class="md-nav__link">
pipelineName
</a>
</li>
<li class="md-nav__item">
<a href="#sourcename" class="md-nav__link">
sourceName
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#remap" class="md-nav__link">
remap
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<h1 id="schema">schema<a class="headerlink" href="#schema" title="Permanent link">&para;</a></h1>
<p>专注于日志格式转换与适配的interceptor。<br />
属于source interceptor。</p>
<h2 id="_1">使用场景<a class="headerlink" href="#_1" title="Permanent link">&para;</a></h2>
<p>对于大部分日志对接的场景中我们要求的日志格式可能有一些差异这些差异主要体现在时间字段、body字段等。<br />
默认情况下Loggie只会把source采集或者接收到的原始数据放到body字段中以最简单的方式发送
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;body&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;this is raw data&quot;</span>
<span class="p">}</span>
</code></pre></div></p>
<p>但是,一些场景下我们需要:</p>
<ul>
<li>增加时间字段</li>
<li>修改<code>body</code>等字段</li>
</ul>
<div class="admonition example">
<p class="admonition-title">Example</p>
<div class="tabbed-set" data-tabs="1:2"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><label for="__tabbed_1_1">增加<a class="magiclink magiclink-github magiclink-mention" href="https://github.com/timestamp" title="GitHub User: timestamp">@timestamp</a>body修改为message</label><div class="tabbed-content">
<div class="highlight"><pre><span></span><code><span class="nt">interceptors</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">schema</span>
<span class="w"> </span><span class="nt">addMeta</span><span class="p">:</span>
<span class="w"> </span><span class="nt">timestamp</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;@timestamp&quot;</span>
<span class="w"> </span><span class="nt">remap</span><span class="p">:</span>
<span class="w"> </span><span class="nt">body</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">message</span>
</code></pre></div>
<p>转换后的event:
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;message&quot;</span><span class="p">:</span><span class="w"> </span><span class="nt">&quot;this is raw data&quot;</span>
<span class="w"> </span><span class="nt">&quot;@timestamp&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;2022-08-30T06:58:49.545Z&quot;</span><span class="p">,</span>
<span class="p">}</span>
</code></pre></div></p>
</div>
<input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><label for="__tabbed_1_2">增加_timestamp_修改时区和格式body修改为_log_</label><div class="tabbed-content">
<div class="highlight"><pre><span></span><code><span class="nt">interceptors</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">schema</span>
<span class="w"> </span><span class="nt">addMeta</span><span class="p">:</span>
<span class="w"> </span><span class="nt">timestamp</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;_timestamp_&quot;</span>
<span class="w"> </span><span class="nt">location</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Local</span>
<span class="w"> </span><span class="nt">layout</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">2006-01-02T15:04:05Z07:00</span>
<span class="w"> </span><span class="nt">remap</span><span class="p">:</span>
<span class="w"> </span><span class="nt">body</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">_log_</span>
</code></pre></div>
</div>
</div>
</div>
<h2 id="_2">配置<a class="headerlink" href="#_2" title="Permanent link">&para;</a></h2>
<h3 id="addmeta">addMeta<a class="headerlink" href="#addmeta" title="Permanent link">&para;</a></h3>
<table>
<thead>
<tr>
<th><code>字段</code></th>
<th><code>类型</code></th>
<th><code>是否必填</code></th>
<th><code>默认值</code></th>
<th><code>含义</code></th>
</tr>
</thead>
<tbody>
<tr>
<td>addMeta</td>
<td></td>
<td>非必填</td>
<td></td>
<td>增加系统元信息字段</td>
</tr>
</tbody>
</table>
<h4 id="timestamp">timestamp<a class="headerlink" href="#timestamp" title="Permanent link">&para;</a></h4>
<table>
<thead>
<tr>
<th><code>字段</code></th>
<th><code>类型</code></th>
<th><code>是否必填</code></th>
<th><code>默认值</code></th>
<th><code>含义</code></th>
</tr>
</thead>
<tbody>
<tr>
<td>addMeta.timestamp</td>
<td></td>
<td>非必填</td>
<td></td>
<td>增加系统时间字段source采集到数据的时间</td>
</tr>
<tr>
<td>addMeta.timestamp.key</td>
<td>string</td>
<td>必填</td>
<td></td>
<td>系统时间的key</td>
</tr>
<tr>
<td>addMeta.timestamp.location</td>
<td>string</td>
<td>非必填</td>
<td>默认为空即为UTC时间</td>
<td>增加的时间时区,另外还支持<code>Local</code></td>
</tr>
<tr>
<td>addMeta.timestamp.layout</td>
<td>string</td>
<td>非必填</td>
<td>"2006-01-02T15:04:05.000Z"</td>
<td>golang的时间类型layout可参考https://go.dev/src/time/format.go</td>
</tr>
</tbody>
</table>
<h4 id="pipelinename">pipelineName<a class="headerlink" href="#pipelinename" title="Permanent link">&para;</a></h4>
<table>
<thead>
<tr>
<th><code>字段</code></th>
<th><code>类型</code></th>
<th><code>是否必填</code></th>
<th><code>默认值</code></th>
<th><code>含义</code></th>
</tr>
</thead>
<tbody>
<tr>
<td>addMeta.pipelineName</td>
<td></td>
<td>非必填</td>
<td></td>
<td>将pipelineName加入到event中</td>
</tr>
<tr>
<td>addMeta.pipelineName.key</td>
<td>string</td>
<td>必填</td>
<td></td>
<td>增加后的字段的key</td>
</tr>
</tbody>
</table>
<div class="admonition example">
<p class="admonition-title">Example</p>
<p><div class="highlight"><pre><span></span><code><span class="nt">interceptors</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">schema</span>
<span class="w"> </span><span class="nt">addMeta</span><span class="p">:</span>
<span class="w"> </span><span class="nt">pipelineName</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">pipeline</span>
</code></pre></div>
转换后的event:
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;pipeline&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;demo&quot;</span>
<span class="w"> </span><span class="err">...</span>
<span class="p">}</span>
</code></pre></div></p>
</div>
<h4 id="sourcename">sourceName<a class="headerlink" href="#sourcename" title="Permanent link">&para;</a></h4>
<table>
<thead>
<tr>
<th><code>字段</code></th>
<th><code>类型</code></th>
<th><code>是否必填</code></th>
<th><code>默认值</code></th>
<th><code>含义</code></th>
</tr>
</thead>
<tbody>
<tr>
<td>addMeta.sourceName</td>
<td></td>
<td>非必填</td>
<td></td>
<td>将sourceName加入到event中</td>
</tr>
<tr>
<td>addMeta.sourceName.key</td>
<td>string</td>
<td>必填</td>
<td></td>
<td>增加后的字段的key</td>
</tr>
</tbody>
</table>
<div class="admonition example">
<p class="admonition-title">Example</p>
<p><div class="highlight"><pre><span></span><code><span class="nt">interceptors</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">schema</span>
<span class="w"> </span><span class="nt">addMeta</span><span class="p">:</span>
<span class="w"> </span><span class="nt">sourceName</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">source</span>
</code></pre></div>
转换后的event:
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;source&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;local&quot;</span>
<span class="w"> </span><span class="err">...</span>
<span class="p">}</span>
</code></pre></div></p>
</div>
<h3 id="remap">remap<a class="headerlink" href="#remap" title="Permanent link">&para;</a></h3>
<table>
<thead>
<tr>
<th><code>字段</code></th>
<th><code>类型</code></th>
<th><code>是否必填</code></th>
<th><code>默认值</code></th>
<th><code>含义</code></th>
</tr>
</thead>
<tbody>
<tr>
<td>remap</td>
<td>map</td>
<td>非必填</td>
<td></td>
<td>对字段进行转换,目前支持重命名</td>
</tr>
<tr>
<td>remap.[originKey]</td>
<td>string</td>
<td>非必填</td>
<td></td>
<td>原始字段key</td>
</tr>
<tr>
<td>remap.[originKey].key</td>
<td>string</td>
<td>非必填</td>
<td></td>
<td>转换后的字段key</td>
</tr>
</tbody>
</table>
<div class="admonition example">
<p class="admonition-title">Example</p>
<p><div class="highlight"><pre><span></span><code><span class="nt">interceptors</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">schema</span>
<span class="w"> </span><span class="nt">remap</span><span class="p">:</span>
<span class="w"> </span><span class="nt">body</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">msg</span>
<span class="w"> </span><span class="nt">state</span><span class="p">:</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">meta</span>
</code></pre></div>
转换前的event:
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;body&quot;</span><span class="p">:</span><span class="w"> </span><span class="nt">&quot;this is log&quot;</span>
<span class="w"> </span><span class="nt">&quot;state&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;ok&quot;</span><span class="p">,</span>
<span class="p">}</span>
</code></pre></div></p>
<p>转换后的event:
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;msg&quot;</span><span class="p">:</span><span class="w"> </span><span class="nt">&quot;this is log&quot;</span>
<span class="w"> </span><span class="nt">&quot;meta&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;ok&quot;</span><span class="p">,</span>
<span class="p">}</span>
</code></pre></div></p>
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