Added support for Loggly batch uploads

src/Monolog/Formatter/LogglyFormatter.php

@@ -0,0 +1,36 @@
+<?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\Formatter;
+
+/**
+ * Extends the standard JsonFormatter to format messages compatible with Loggly.
+ *
+ * @author Adam Pancutt <adam@pancutt.com>
+ */
+class LogglyFormatter extends JsonFormatter
+{
+
+    /**
+     * {@inheritdoc}
+     */
+    public function formatBatch(array $records)
+    {
+        $instance = $this;
+
+        array_walk($records, function(&$value, $key) use ($instance) {
+            $value = $instance->format($value);
+        });
+
+        return implode("\n", $records);
+    }
+
+}

src/Monolog/Handler/LogglyHandler.php

@@ -12,16 +12,19 @@
 namespace Monolog\Handler;
 
 use Monolog\Logger;
-use Monolog\Formatter\JsonFormatter;
+use Monolog\Formatter\LogglyFormatter;
 
 /**
  * Sends errors to Loggly.
  *
  * @author Przemek Sobstel <przemek@sobstel.org>
+ * @author Adam Pancutt <adam@pancutt.com>
  */
 class LogglyHandler extends AbstractProcessingHandler
 {
     const HOST = 'logs-01.loggly.com';
+    const ENDPOINT_SINGLE = 'inputs';
+    const ENDPOINT_BATCH = 'bulk';
 
     protected $token;
 
@@ -45,17 +48,38 @@ class LogglyHandler extends AbstractProcessingHandler
 
     protected function write(array $record)
     {
-        $url = sprintf("http://%s/inputs/%s/", self::HOST, $this->token);
+        $this->send($record["formatted"], self::ENDPOINT_SINGLE);
+    }
+
+    public function handleBatch(array $records)
+    {
+        $level = $this->level;
+
+        $records = array_filter($records, function ($record) use ($level) {
+            return ($record['level'] >= $level);
+        });
+
+        if ($records) {
+            $this->send($this->getFormatter()->formatBatch($records), self::ENDPOINT_BATCH);
+        }
+    }
+
+    protected function send($data, $endpoint)
+    {
+        $url = sprintf("https://%s/%s/%s/", self::HOST, $endpoint, $this->token);
+
+        $headers = array('Content-Type: application/json');
+
         if ($this->tag) {
-            $url .= sprintf("tag/%s/", $this->tag);
+            $headers[] = "X-LOGGLY-TAG: {$this->tag}";
         }
 
         $ch = curl_init();
 
         curl_setopt($ch, CURLOPT_URL, $url);
         curl_setopt($ch, CURLOPT_POST, true);
-        curl_setopt($ch, CURLOPT_POSTFIELDS, $record["formatted"]);
-        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
         curl_exec($ch);
@@ -64,6 +88,6 @@ class LogglyHandler extends AbstractProcessingHandler
 
     protected function getDefaultFormatter()
     {
-        return new JsonFormatter();
+        return new LogglyFormatter();
     }
 }

tests/Monolog/Formatter/LogglyFormatterTest.php

@@ -0,0 +1,36 @@
+<?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\Formatter;
+
+use Monolog\Logger;
+use Monolog\TestCase;
+
+class LogglyFormatterTest extends TestCase
+{
+
+    /**
+     * @covers Monolog\Formatter\LogglyFormatter::formatBatch
+     */
+    public function testFormatBatch()
+    {
+        $formatter = new LogglyFormatter();
+        $records = $expected = array(
+            $this->getRecord(Logger::WARNING),
+            $this->getRecord(Logger::DEBUG),
+        );
+        array_walk($expected, function(&$value, $key) {
+            $value = json_encode($value);
+        });
+        $this->assertEquals(implode("\n", $expected), $formatter->formatBatch($records));
+    }
+
+}