lithium\analysis\logger\adapter\File
Uses
AutoConfigurable
A simple log adapter that writes messages to files. By default, messages are written to
resources/tmp/logs/<type>.log
, where <type>
is the log message priority level.
use lithium\analysis\Logger;
Logger::config([
'simple' => ['adapter' => 'File']
]);
Logger::write('debug', 'Something happened!');
This will cause the message and the timestamp of the log event to be written to
resources/tmp/logs/debug.log
. For available configuration options for this adapter, see
the __construct()
method.
Source
class File {
use AutoConfigurable;
/**
* Constructor.
*
* @see lithium\util\Text::insert()
* @param array $config Settings used to configure the adapter. Available options:
* - `'path'` _string_: The directory to write log files to. Defaults to
* `<app>/resources/tmp/logs`.
* - `'timestamp'` _string_: The `date()`-compatible timestamp format. Defaults to
* `'Y-m-d H:i:s'`.
* - `'file'` _\Closure_: A closure which accepts two parameters: an array
* containing the current log message details, and an array containing the `File`
* adapter's current configuration. It must then return a file name to write the
* log message to. The default will produce a log file name corresponding to the
* priority of the log message, i.e. `"debug.log"` or `"alert.log"`.
* - `'format'` _string_: A `Text::insert()`-compatible string that specifies how
* the log message should be formatted. The default format is
* `"{:timestamp} {:message}\n"`.
* @return void
*/
public function __construct(array $config = []) {
$defaults = [
'path' => Libraries::get(true, 'resources') . '/tmp/logs',
'timestamp' => 'Y-m-d H:i:s',
'file' => function($data, $config) { return "{$data['priority']}.log"; },
'format' => "{:timestamp} {:message}\n"
];
$this->_autoConfig($config + $defaults, []);
$this->_autoInit($config);
}
/**
* Appends a message to a log file.
*
* @see lithium\analysis\Logger::$_priorities
* @param string $priority The message priority. See `Logger::$_priorities`.
* @param string $message The message to write to the log.
* @return \Closure Function returning boolean `true` on successful write, `false` otherwise.
*/
public function write($priority, $message) {
return function($params) {
$path = $this->_config['path'] . '/' . $this->_config['file']($params, $this->_config);
$params['timestamp'] = date($this->_config['timestamp']);
$message = Text::insert($this->_config['format'], $params);
return file_put_contents($path, $message, FILE_APPEND);
};
}
}