Add RavenHandler and RavenFormatter for working with Raven which is the

protocol used by Sentry (http://github.com/dcramer/sentry). Uses
raven-php (https://github.com/getsentry/raven-php).

src/Monolog/Handler/RavenHandler.php

@@ -0,0 +1,77 @@
+<?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\Handler;
+
+use Monolog\Logger;
+use Monolog\Handler\AbstractProcessingHandler;
+use Monolog\Formatter\RavenFormatter;
+use \Raven_Client;
+
+/**
+ * Handler to send messages to a Sentry (https://github.com/dcramer/sentry) server
+ * using raven-php (https://github.com/getsentry/raven-php)
+ *
+ * @author Marc Abramowitz <marc@marc-abramowitz.com>
+ */
+class RavenHandler extends AbstractProcessingHandler
+{
+    /**
+     * @var Raven_Client the client object that sends the message to the server
+     */
+    protected $ravenClient;
+
+    /**
+     * @param Raven_Client $ravenClient
+     * @param integer $level The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(Raven_Client $ravenClient, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        $this->ravenClient = $ravenClient;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->ravenClient = null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        if ($record['level'] == Logger::ERROR)
+        {
+            $this->ravenClient->captureException($record['context']['context']);
+        }
+        else
+        {
+            $this->ravenClient->captureMessage(
+                $record['formatted']['message'], $params = $record,
+                $record['formatted']['level'], $stack = true
+            );
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new RavenFormatter();
+    }
+}