89 lines
2.8 KiB
PHP
89 lines
2.8 KiB
PHP
<?php
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namespace SilverStripe\Logging;
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use Psr\Log\LoggerInterface;
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use SilverStripe\Core\Injector\Injector;
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use SilverStripe\Dev\Deprecation;
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/**
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* Wrapper class for a logging handler like {@link Zend_Log}
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* which takes a message (or a map of context variables) and
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* sends it to one or more {@link Zend_Log_Writer_Abstract}
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* subclasses for output.
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*
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* These priorities are currently supported:
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* - Log::ERR
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* - Log::WARN
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* - Log::NOTICE
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* - Log::INFO
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* - Log::DEBUG
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*
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* You can add an error writer by calling {@link Log::add_writer()}
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*
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* Example usage of logging errors by email notification:
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* <code>
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* Log::add_writer(new LogEmailWriter('my@email.com'), Log::ERR);
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* </code>
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*
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* Example usage of logging errors by file:
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* <code>
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* Log::add_writer(new LogFileWriter('/var/log/silverstripe/errors.log'), Log::ERR);
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* </code>
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*
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* Example usage of logging at warnings and errors by setting the priority to '<=':
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* <code>
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* Log::add_writer(new LogEmailWriter('my@email.com'), Log::WARN, '<=');
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* </code>
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*
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* Each writer object can be assigned a formatter. The formatter is
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* responsible for formatting the message before giving it to the writer.
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* {@link LogErrorEmailFormatter} is such an example that formats errors
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* into HTML for human readability in an email client.
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*
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* Formatters are added to writers like this:
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* <code>
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* $logEmailWriter = new LogEmailWriter('my@email.com');
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* $myEmailFormatter = new MyLogEmailFormatter();
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* $logEmailWriter->setFormatter($myEmailFormatter);
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* </code>
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*/
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class Log
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{
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const ERR = 'error';
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const WARN = 'warning';
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const NOTICE = 'notice';
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const INFO = 'info';
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const DEBUG = 'debug';
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/**
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* Get the logger currently in use, or create a new one if it doesn't exist.
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*
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* @deprecated 4.0..5.0
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* @return LoggerInterface
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*/
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public static function get_logger() {
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Deprecation::notice('5.0', 'Use Injector::inst()->get(\'Logger\') instead');
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return Injector::inst()->get('Logger');
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}
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/**
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* Dispatch a message by priority level.
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*
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* The message parameter can be either a string (a simple error
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* message), or an array of variables. The latter is useful for passing
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* along a list of debug information for the writer to handle, such as
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* error code, error line, error context (backtrace).
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*
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* @param mixed $message Exception object or array of error context variables
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* @param string $priority Priority. Possible values: Log::ERR, Log::WARN, Log::NOTICE, Log::INFO or Log::DEBUG
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*
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* @deprecated 4.0.0:5.0.0 Use Injector::inst()->get('Logger')->log($priority, $message) instead
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*/
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public static function log($message, $priority) {
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Deprecation::notice('5.0', 'Use Injector::inst()->get(\'Logger\')->log($priority, $message) instead');
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Injector::inst()->get('Logger')->log($priority, $message);
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}
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}
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