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@ -10,6 +10,7 @@
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namespace yii\logging; |
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use yii\base\Event; |
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use yii\base\Exception; |
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/** |
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* Logger records logged messages in memory. |
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@ -18,8 +19,6 @@ use yii\base\Event;
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* call [[flush()]] to send logged messages to different log targets, such as |
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* file, email, Web. |
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* |
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* Logger provides a set of events for further customization: |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @since 2.0 |
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*/ |
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@ -30,12 +29,40 @@ class Logger extends \yii\base\Component
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*/ |
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const EVENT_FLUSH = 'flush'; |
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const LEVEL_ERROR = 'error'; |
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const LEVEL_WARNING = 'warning'; |
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const LEVEL_INFO = 'info'; |
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const LEVEL_TRACE = 'trace'; |
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const LEVEL_PROFILE_BEGIN = 'profile-begin'; |
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const LEVEL_PROFILE_END = 'profile-end'; |
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/** |
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* Error message level. An error message is one that indicates the abnormal termination of the |
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* application and may require developer's handling. |
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*/ |
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const LEVEL_ERROR = 0x01; |
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/** |
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* Warning message level. A warning message is one that indicates some abnormal happens but |
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* the application is able to continue to run. Developers should pay attention to this message. |
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*/ |
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const LEVEL_WARNING = 0x02; |
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/** |
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* Informational message level. An informational message is one that includes certain information |
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* for developers to review. |
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*/ |
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const LEVEL_INFO = 0x04; |
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/** |
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* Tracing message level. An tracing message is one that reveals the code execution flow. |
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*/ |
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const LEVEL_TRACE = 0x08; |
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/** |
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* Profiling message level. This indicates the message is for profiling purpose. |
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*/ |
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const LEVEL_PROFILE = 0x40; |
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/** |
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* Profiling message level. This indicates the message is for profiling purpose. It marks the |
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* beginning of a profiling block. |
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*/ |
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const LEVEL_PROFILE_BEGIN = 0x50; |
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/** |
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* Profiling message level. This indicates the message is for profiling purpose. It marks the |
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* end of a profiling block. |
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*/ |
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const LEVEL_PROFILE_END = 0x60; |
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/** |
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* @var integer how many messages should be logged before they are flushed from memory and sent to targets. |
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@ -52,7 +79,7 @@ class Logger extends \yii\base\Component
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* ~~~ |
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* array( |
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* [0] => message (mixed) |
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* [1] => level (string) |
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* [1] => level (integer) |
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* [2] => category (string) |
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* [3] => timestamp (float, obtained by microtime(true)) |
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* ) |
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@ -61,85 +88,13 @@ class Logger extends \yii\base\Component
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public $messages = array(); |
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/** |
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* Logs an error message. |
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* An error message is typically logged when an unrecoverable error occurs |
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* during the execution of an application. |
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* @param mixed $message the message to be logged. |
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* @param string $category the category of the message. |
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*/ |
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public function error($message, $category = 'application') |
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{ |
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$this->log($message, self::LEVEL_ERROR, $category); |
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} |
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/** |
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* Logs a trace message. |
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* Trace messages are logged mainly for development purpose to see |
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* the execution work flow of some code. |
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* @param mixed $message the message to be logged. |
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* @param string $category the category of the message. |
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*/ |
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public function trace($message, $category = 'application') |
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{ |
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$this->log($message, self::LEVEL_TRACE, $category); |
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} |
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/** |
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* Logs a warning message. |
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* A warning message is typically logged when an error occurs while the execution |
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* can still continue. |
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* @param mixed $message the message to be logged. |
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* @param string $category the category of the message. |
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*/ |
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public function warning($message, $category = 'application') |
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{ |
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$this->log($message, self::LEVEL_WARNING, $category); |
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} |
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/** |
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* Logs an informative message. |
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* An informative message is typically logged by an application to keep record of |
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* something important (e.g. an administrator logs in). |
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* @param mixed $message the message to be logged. |
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* @param string $category the category of the message. |
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*/ |
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public function info($message, $category = 'application') |
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{ |
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$this->log($message, self::LEVEL_INFO, $category); |
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} |
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/** |
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* Marks the beginning of a code block for profiling. |
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* This has to be matched with a call to [[endProfile()]] with the same category name. |
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* The begin- and end- calls must also be properly nested. |
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* @param string $token token for the code block |
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* @param string $category the category of this log message |
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* @see endProfile |
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*/ |
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public function beginProfile($token, $category = 'application') |
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{ |
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$this->log($token, self::LEVEL_PROFILE_BEGIN, $category); |
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} |
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/** |
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* Marks the end of a code block for profiling. |
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* This has to be matched with a previous call to [[beginProfile()]] with the same category name. |
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* @param string $token token for the code block |
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* @param string $category the category of this log message |
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* @see beginProfile |
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*/ |
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public function endProfile($token, $category = 'application') |
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{ |
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$this->log($token, self::LEVEL_PROFILE_END, $category); |
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} |
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/** |
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* Logs a message with the given type and category. |
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* If `YII_DEBUG` is true and `YII_TRACE_LEVEL` is greater than 0, then additional |
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* call stack information about application code will be appended to the message. |
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* @param string $message the message to be logged. |
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* @param string $level the level of the message. This must be one of the following: |
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* 'trace', 'info', 'warning', 'error', 'profile'. |
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* @param integer $level the level of the message. This must be one of the following: |
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* `Logger::LEVEL_ERROR`, `Logger::LEVEL_WARNING`, `Logger::LEVEL_INFO`, `Logger::LEVEL_TRACE`, |
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* `Logger::LEVEL_PROFILE_BEGIN`, `Logger::LEVEL_PROFILE_END`. |
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* @param string $category the category of the message. |
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*/ |
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public function log($message, $level, $category = 'application') |
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@ -242,14 +197,14 @@ class Logger extends \yii\base\Component
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$stack = array(); |
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foreach ($this->messages as $log) { |
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if ($log[1] === self::LEVEL_PROFILE_BEGIN) { |
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list($token, $level, $category, $timestamp) = $log; |
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if ($level == self::LEVEL_PROFILE_BEGIN) { |
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$stack[] = $log; |
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} elseif ($log[1] === self::LEVEL_PROFILE_END) { |
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list($token, $level, $category, $timestamp) = $log; |
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} elseif ($level == self::LEVEL_PROFILE_END) { |
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if (($last = array_pop($stack)) !== null && $last[0] === $token) { |
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$timings[] = array($token, $category, $timestamp - $last[3]); |
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} else { |
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throw new \yii\base\Exception("Unmatched profiling block: $token"); |
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throw new Exception("Unmatched profiling block: $token"); |
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} |
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} |
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} |
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Qiang Xue
12 years ago