422 lines
11 KiB
PHP
422 lines
11 KiB
PHP
<?php
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/*
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* This file is part of the Monolog package.
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*
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* (c) Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Monolog;
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use Monolog\Handler\HandlerInterface;
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use Monolog\Handler\StreamHandler;
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/**
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* Monolog log channel
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*
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* It contains a stack of Handlers and a stack of Processors,
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* and uses them to store records that are added to it.
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*
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* @author Jordi Boggiano <j.boggiano@seld.be>
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*/
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class Logger
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{
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/**
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* Detailed debug information
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*/
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const DEBUG = 100;
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/**
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* Interesting events
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*
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* Examples: User logs in, SQL logs.
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*/
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const INFO = 200;
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/**
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* Exceptional occurrences that are not errors
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*
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* Examples: Use of deprecated APIs, poor use of an API,
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* undesirable things that are not necessarily wrong.
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*/
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const WARNING = 300;
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/**
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* Runtime errors
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*/
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const ERROR = 400;
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/**
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* Critical conditions
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*
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* Example: Application component unavailable, unexpected exception.
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*/
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const CRITICAL = 500;
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/**
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* Action must be taken immediately
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*
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* Example: Entire website down, database unavailable, etc.
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* This should trigger the SMS alerts and wake you up.
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*/
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const ALERT = 550;
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protected static $levels = array(
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100 => 'DEBUG',
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200 => 'INFO',
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300 => 'WARNING',
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400 => 'ERROR',
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500 => 'CRITICAL',
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550 => 'ALERT',
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);
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protected $name;
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/**
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* The handler stack
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*
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* @var array of Monolog\Handler\HandlerInterface
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*/
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protected $handlers = array();
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protected $processors = array();
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/**
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* @param string $name The logging channel
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*/
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public function __construct($name)
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{
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$this->name = $name;
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}
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/**
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* @return string
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*/
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public function getName()
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{
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return $this->name;
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}
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/**
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* Pushes a handler on to the stack.
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*
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* @param HandlerInterface $handler
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*/
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public function pushHandler(HandlerInterface $handler)
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{
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array_unshift($this->handlers, $handler);
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}
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/**
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* Pops a handler from the stack
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*
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* @return HandlerInterface
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*/
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public function popHandler()
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{
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if (!$this->handlers) {
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throw new \LogicException('You tried to pop from an empty handler stack.');
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}
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return array_shift($this->handlers);
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}
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/**
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* Adds a processor on to the stack.
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*
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* @param callable $callback
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*/
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public function pushProcessor($callback)
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{
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if (!is_callable($callback)) {
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throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
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}
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array_unshift($this->processors, $callback);
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}
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/**
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* Removes the processor on top of the stack and returns it.
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*
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* @return callable
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*/
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public function popProcessor()
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{
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if (!$this->processors) {
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throw new \LogicException('You tried to pop from an empty processor stack.');
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}
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return array_shift($this->processors);
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}
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/**
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* Adds a log record.
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*
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* @param integer $level The logging level
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addRecord($level, $message, array $context = array())
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{
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if (!$this->handlers) {
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$this->pushHandler(new StreamHandler('php://stderr', self::DEBUG));
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}
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$record = array(
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'message' => (string) $message,
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'context' => $context,
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'level' => $level,
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'level_name' => self::getLevelName($level),
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'channel' => $this->name,
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'datetime' => \DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true))),
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'extra' => array(),
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);
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// check if any message will handle this message
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$handlerKey = null;
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foreach ($this->handlers as $key => $handler) {
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if ($handler->isHandling($record)) {
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$handlerKey = $key;
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break;
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}
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}
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// none found
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if (null === $handlerKey) {
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return false;
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}
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// found at least one, process message and dispatch it
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foreach ($this->processors as $processor) {
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$record = call_user_func($processor, $record);
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}
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while (isset($this->handlers[$handlerKey]) &&
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false === $this->handlers[$handlerKey]->handle($record)) {
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$handlerKey++;
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}
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return true;
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}
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/**
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* Adds a log record at the DEBUG level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addDebug($message, array $context = array())
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{
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return $this->addRecord(self::DEBUG, $message, $context);
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}
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/**
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* Adds a log record at the INFO level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addInfo($message, array $context = array())
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{
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return $this->addRecord(self::INFO, $message, $context);
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}
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/**
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* Adds a log record at the WARNING level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addWarning($message, array $context = array())
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{
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return $this->addRecord(self::WARNING, $message, $context);
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}
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/**
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* Adds a log record at the ERROR level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addError($message, array $context = array())
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{
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return $this->addRecord(self::ERROR, $message, $context);
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}
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/**
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* Adds a log record at the CRITICAL level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addCritical($message, array $context = array())
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{
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return $this->addRecord(self::CRITICAL, $message, $context);
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}
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/**
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* Adds a log record at the ALERT level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function addAlert($message, array $context = array())
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{
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return $this->addRecord(self::ALERT, $message, $context);
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}
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/**
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* Gets the name of the logging level.
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*
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* @param integer $level
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* @return string
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*/
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public static function getLevelName($level)
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{
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return self::$levels[$level];
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}
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/**
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* Checks whether the Logger has a handler that listens on the given level
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*
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* @param integer $level
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* @return Boolean
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*/
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public function isHandling($level)
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{
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$record = array(
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'message' => '',
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'context' => array(),
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'level' => $level,
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'level_name' => self::getLevelName($level),
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'channel' => $this->name,
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'datetime' => new \DateTime(),
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'extra' => array(),
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);
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foreach ($this->handlers as $key => $handler) {
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if ($handler->isHandling($record)) {
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return true;
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}
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}
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return false;
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}
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// ZF Logger Compat
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/**
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* Adds a log record at the DEBUG level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function debug($message, array $context = array())
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{
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return $this->addRecord(self::DEBUG, $message, $context);
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}
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/**
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* Adds a log record at the INFO level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function info($message, array $context = array())
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{
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return $this->addRecord(self::INFO, $message, $context);
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}
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/**
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* Adds a log record at the INFO level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function notice($message, array $context = array())
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{
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return $this->addRecord(self::INFO, $message, $context);
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}
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/**
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* Adds a log record at the WARNING level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function warn($message, array $context = array())
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{
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return $this->addRecord(self::WARNING, $message, $context);
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}
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/**
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* Adds a log record at the ERROR level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function err($message, array $context = array())
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{
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return $this->addRecord(self::ERROR, $message, $context);
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}
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/**
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* Adds a log record at the CRITICAL level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function crit($message, array $context = array())
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{
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return $this->addRecord(self::CRITICAL, $message, $context);
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}
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/**
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* Adds a log record at the ALERT level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function alert($message, array $context = array())
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{
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return $this->addRecord(self::ALERT, $message, $context);
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}
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/**
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* Adds a log record at the ALERT level.
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*
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* This method allows to have an easy ZF compatibility.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return Boolean Whether the record has been processed
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*/
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public function emerg($message, array $context = array())
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{
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return $this->addRecord(self::ALERT, $message, $context);
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}
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}
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