vendor/monolog/src/Monolog/Logger.php
changeset 0 7f95f8617b0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/monolog/src/Monolog/Logger.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,393 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog;
+
+use Monolog\Handler\HandlerInterface;
+use Monolog\Handler\StreamHandler;
+
+/**
+ * Monolog log channel
+ *
+ * It contains a stack of Handlers and a stack of Processors,
+ * and uses them to store records that are added to it.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class Logger
+{
+    /**
+     * Detailed debug information
+     */
+    const DEBUG = 100;
+
+    /**
+     * Interesting events
+     *
+     * Examples: User logs in, SQL logs.
+     */
+    const INFO = 200;
+
+    /**
+     * Exceptional occurences that are not errors
+     *
+     * Examples: Use of deprecated APIs, poor use of an API,
+     * undesirable things that are not necessarily wrong.
+     */
+    const WARNING = 300;
+
+    /**
+     * Runtime errors
+     */
+    const ERROR = 400;
+
+    /**
+     * Critical conditions
+     *
+     * Example: Application component unavailable, unexpected exception.
+     */
+    const CRITICAL = 500;
+
+    /**
+     * Action must be taken immediately
+     *
+     * Example: Entire website down, database unavailable, etc.
+     * This should trigger the SMS alerts and wake you up.
+     */
+    const ALERT = 550;
+
+    protected static $levels = array(
+        100 => 'DEBUG',
+        200 => 'INFO',
+        300 => 'WARNING',
+        400 => 'ERROR',
+        500 => 'CRITICAL',
+        550 => 'ALERT',
+    );
+
+    protected $name;
+
+    /**
+     * The handler stack
+     *
+     * @var array of Monolog\Handler\HandlerInterface
+     */
+    protected $handlers = array();
+
+    protected $processors = array();
+
+    /**
+     * @param string $name The logging channel
+     */
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName() {
+        return $this->name;
+    }
+
+    /**
+     * Pushes an handler on the stack.
+     *
+     * @param HandlerInterface $handler
+     */
+    public function pushHandler(HandlerInterface $handler)
+    {
+        array_unshift($this->handlers, $handler);
+    }
+
+    /**
+     * Pops an handler from the stack
+     *
+     * @return HandlerInterface
+     */
+    public function popHandler()
+    {
+        if (!$this->handlers) {
+            throw new \LogicException('You tried to pop from an empty handler stack.');
+        }
+        return array_shift($this->handlers);
+    }
+
+    /**
+     * Adds a processor in the stack.
+     *
+     * @param callable $callback
+     */
+    public function pushProcessor($callback)
+    {
+        if (!is_callable($callback)) {
+            throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
+        }
+        array_unshift($this->processors, $callback);
+    }
+
+    /**
+     * Removes the processor on top of the stack and returns it.
+     *
+     * @return callable
+     */
+    public function popProcessor()
+    {
+        if (!$this->processors) {
+            throw new \LogicException('You tried to pop from an empty processor stack.');
+        }
+        return array_shift($this->processors);
+    }
+
+    /**
+     * Adds a log record.
+     *
+     * @param integer $level The logging level
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addRecord($level, $message, array $context = array())
+    {
+        if (!$this->handlers) {
+            $this->pushHandler(new StreamHandler('php://stderr', self::DEBUG));
+        }
+        $record = array(
+            'message' => (string) $message,
+            'context' => $context,
+            'level' => $level,
+            'level_name' => self::getLevelName($level),
+            'channel' => $this->name,
+            'datetime' => new \DateTime(),
+            'extra' => array(),
+        );
+        // check if any message will handle this message
+        $handlerKey = null;
+        foreach ($this->handlers as $key => $handler) {
+            if ($handler->isHandling($record)) {
+                $handlerKey = $key;
+                break;
+            }
+        }
+        // none found
+        if (null === $handlerKey) {
+            return false;
+        }
+        // found at least one, process message and dispatch it
+        foreach ($this->processors as $processor) {
+            $record = call_user_func($processor, $record);
+        }
+        while (isset($this->handlers[$handlerKey]) &&
+            false === $this->handlers[$handlerKey]->handle($record)) {
+            $handlerKey++;
+        }
+
+        return true;
+    }
+
+    /**
+     * Adds a log record at the DEBUG level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addDebug($message, array $context = array())
+    {
+        return $this->addRecord(self::DEBUG, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the INFO level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addInfo($message, array $context = array())
+    {
+        return $this->addRecord(self::INFO, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the WARNING level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addWarning($message, array $context = array())
+    {
+        return $this->addRecord(self::WARNING, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ERROR level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addError($message, array $context = array())
+    {
+        return $this->addRecord(self::ERROR, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the CRITICAL level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addCritical($message, array $context = array())
+    {
+        return $this->addRecord(self::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ALERT level.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addAlert($message, array $context = array())
+    {
+        return $this->addRecord(self::ALERT, $message, $context);
+    }
+
+    /**
+     * Gets the name of the logging level.
+     *
+     * @param integer $level
+     * @return string
+     */
+    public static function getLevelName($level)
+    {
+        return self::$levels[$level];
+    }
+
+    // ZF Logger Compat
+
+    /**
+     * Adds a log record at the DEBUG level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function debug($message, array $context = array())
+    {
+        return $this->addRecord(self::DEBUG, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the INFO level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function info($message, array $context = array())
+    {
+        return $this->addRecord(self::INFO, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the INFO level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function notice($message, array $context = array())
+    {
+        return $this->addRecord(self::INFO, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the WARNING level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function warn($message, array $context = array())
+    {
+        return $this->addRecord(self::WARNING, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ERROR level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function err($message, array $context = array())
+    {
+        return $this->addRecord(self::ERROR, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the CRITICAL level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function crit($message, array $context = array())
+    {
+        return $this->addRecord(self::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ALERT level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function alert($message, array $context = array())
+    {
+        return $this->addRecord(self::ALERT, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ALERT level.
+     *
+     * This method allows to have an easy ZF compatibility.
+     *
+     * @param string $message The log message
+     * @param array $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function emerg($message, array $context = array())
+    {
+        return $this->addRecord(self::ALERT, $message, $context);
+    }
+}