Major refactoring to follow the Logbook model

src/Monolog/Handler/AbstractHandler.php

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+<?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\Formatter\LineFormatter;
+
+abstract class AbstractHandler implements HandlerInterface
+{
+    protected $level;
+    protected $bubble;
+    protected $parent;
+
+    protected $formatter;
+    protected $processor;
+
+    public function __construct($level = Logger::DEBUG, $bubble = false)
+    {
+        $this->level = $level;
+        $this->bubble = $bubble;
+    }
+
+    public function handle($message)
+    {
+        if ($message['level'] < $this->level) {
+            return false;
+        }
+
+        if ($this->processor) {
+            $message = call_user_func($this->processor, $message, $this);
+        }
+
+        if (!$this->formatter) {
+            $this->formatter = $this->getDefaultFormatter();
+        }
+        $message = $this->formatter->format($message);
+
+        $this->write($message);
+        return false === $this->bubble;
+    }
+
+    abstract public function write($message);
+
+    public function close()
+    {
+    }
+
+    public function setProcessor($callback)
+    {
+        $this->processor = $callback;
+    }
+
+    public function getProcessor()
+    {
+        return $this->processor;
+    }
+
+    public function setFormatter($formatter)
+    {
+        $this->formatter = $formatter;
+    }
+
+    public function getFormatter()
+    {
+        return $this->formatter;
+    }
+
+    public function setLevel($level)
+    {
+        $this->level = $level;
+    }
+
+    public function getLevel()
+    {
+        return $this->level;
+    }
+
+    public function setBubble($bubble)
+    {
+        $this->bubble = $bubble;
+    }
+
+    public function getBubble()
+    {
+        return $this->bubble;
+    }
+
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Sets the parent handler
+     *
+     * @param Monolog\Handler\HandlerInterface
+     */
+    public function setParent(HandlerInterface $parent)
+    {
+        $this->parent = $parent;
+    }
+
+    public function __destruct()
+    {
+        $this->close();
+    }
+
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter();
+    }
+}

src/Monolog/Handler/HandlerInterface.php

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+<?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;
+
+interface HandlerInterface
+{
+    public function handle($message);
+
+    public function setLevel($level);
+
+    public function getLevel();
+
+    public function setBubble($bubble);
+
+    public function getBubble();
+
+    public function getParent();
+
+    public function setParent(HandlerInterface $parent);
+}

src/Monolog/Handler/NullHandler.php

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+<?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;
+
+class NullHandler extends AbstractHandler
+{
+    public function handle($message)
+    {
+        if ($message['level'] < $this->level) {
+            return false;
+        }
+        return false === $this->bubble;
+    }
+
+    public function write($message)
+    {
+    }
+}

src/Monolog/Handler/RotatingFileHandler.php

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+<?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;
+
+class RotatingFileHandler extends StreamHandler
+{
+    protected $rotation;
+    protected $maxAge;
+
+    public function close()
+    {
+        parent::close();
+        // TODO rotation
+    }
+
+    public function setRotation($rotation)
+    {
+        $this->rotation = $rotation;
+    }
+
+    public function setMaxAge($maxAge)
+    {
+        $this->maxAge = $maxAge;
+    }
+}

src/Monolog/Handler/StreamHandler.php

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+<?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\Formatter\SimpleFormatter;
+use Monolog\Logger;
+
+class StreamHandler extends AbstractHandler
+{
+    protected $stream;
+    protected $url;
+
+    public function __construct($stream, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+        if (is_resource($stream)) {
+            $this->stream = $stream;
+        } else {
+            $this->url = $stream;
+        }
+    }
+
+    public function write($message)
+    {
+        if (null === $this->stream) {
+            if (!$this->url) {
+                throw new \LogicException('Missing stream url, the stream can not be opened. This may be caused by a premature call to close().');
+            }
+            $this->stream = fopen($this->url, 'a');
+            if (!is_resource($this->stream)) {
+                throw new \UnexpectedValueException('The stream could not be opened, "'.$this->url.'" may be an invalid url.');
+            }
+        }
+        fwrite($this->stream, (string) $message['message']);
+    }
+
+    public function close()
+    {
+        if (null !== $this->stream) {
+            fclose($this->stream);
+            $this->stream = null;
+        }
+    }
+}