get_log_levels

log_levels

log_level

add_log_levels

remove_log_levels

Display, add and remove character labels for log levels.

A flexible, feature-rich yet light-weight logging
framework based on 'R6' classes. It supports hierarchical loggers,
custom log levels, arbitrary data fields in log events, logging to
plaintext, 'JSON', (rotating) files, memory buffers. For extra
appenders that support logging to databases, email and push
notifications see the the package lgr.app.

Stefan Fleck

A Fully Featured Logging Framework

get_log_levels function

<dl><dt>levels</dt>
<dd>a named <code>character</code> vector (see examples)</dd>
<dt>level_names</dt>
<dd>a <code>character</code> vector of the names of the levels to remove</dd></dl>

Arguments

lgr comes with the following predefined log levels that are identical to
the log levels of log4j.
<table class="table">
<tr><td>Level</td><td>Name</td><td>Description</td></tr>
<tr><td><code>0</code></td><td>off</td><td>A log level of 0/off tells a Logger or Appender to suspend all logging</td></tr>
<tr><td><code>100</code></td><td>fatal</td><td>Critical error that leads to program abort. Should always indicate a <code><a href="/link/stop()?package=lgr&version=0.4.4" data-mini-rdoc="lgr::stop()">stop()</a></code> or similar</td></tr>
<tr><td><code>200</code></td><td>error</td><td>A severe error that does not trigger program abort</td></tr>
<tr><td><code>300</code></td><td>warn</td><td>A potentially harmful situation, like <code><a href="/link/warning()?package=lgr&version=0.4.4" data-mini-rdoc="lgr::warning()">warning()</a></code></td></tr>
<tr><td><code>400</code></td><td>info</td><td>An informational message on the progress of the application</td></tr>
<tr><td><code>500</code></td><td>debug</td><td>Finer grained informational messages that are mostly useful for debugging</td></tr>
<tr><td><code>600</code></td><td>trace</td><td>An even finer grained message than debug</td></tr>
<tr><td><code>NA</code></td><td>all</td><td>A log level of NA/all tells a Logger or Appender to process all log events</td></tr>
</table>

Default Log Levels

Manage Log Levels — get_log_levels

<dl>

<dt>levels</dt>
<dd>a named <code>character</code> vector (see examples)</dd>


<dt>level_names</dt>
<dd>a <code>character</code> vector of the names of the levels to remove</dd>

</dl>

lgr comes with the following predefined log levels that are identical to
the log levels of log4j.
<table class='table'>
<tr><td>Level</td><td>Name</td><td>Description</td></tr>
<tr><td><code>0</code></td><td>off</td><td>A log level of 0/off tells a Logger or Appender to suspend all logging</td></tr>
<tr><td><code>100</code></td><td>fatal</td><td>Critical error that leads to program abort. Should always indicate a <code><a href='https://rdrr.io/r/base/stop.html'>stop()</a></code> or similar</td></tr>
<tr><td><code>200</code></td><td>error</td><td>A severe error that does not trigger program abort</td></tr>
<tr><td><code>300</code></td><td>warn</td><td>A potentially harmful situation, like <code><a href='https://rdrr.io/r/base/warning.html'>warning()</a></code></td></tr>
<tr><td><code>400</code></td><td>info</td><td>An informational message on the progress of the application</td></tr>
<tr><td><code>500</code></td><td>debug</td><td>Finer grained informational messages that are mostly useful for debugging</td></tr>
<tr><td><code>600</code></td><td>trace</td><td>An even finer grained message than debug</td></tr>
<tr><td><code>NA</code></td><td>all</td><td>A log level of NA/all tells a Logger or Appender to process all log events</td></tr>
</table>

get_log_levels: Manage Log Levels

Description

Usage

Value

Arguments

Default Log Levels

Examples

Level	Name	Description
`0`	off	A log level of 0/off tells a Logger or Appender to suspend all logging
`100`	fatal	Critical error that leads to program abort. Should always indicate a `stop()` or similar
`200`	error	A severe error that does not trigger program abort
`300`	warn	A potentially harmful situation, like `warning()`
`400`	info	An informational message on the progress of the application
`500`	debug	Finer grained informational messages that are mostly useful for debugging
`600`	trace	An even finer grained message than debug
`NA`	all	A log level of NA/all tells a Logger or Appender to process all log events