From a4894e84975b9d93115db145321021481a0435d0 Mon Sep 17 00:00:00 2001
From: Nicolas Le Goff <legoff@alchemy.fr>
Date: Wed, 8 Feb 2012 11:00:08 +0100
Subject: [PATCH] add support for redis cache

---
 lib/Alchemy/Phrasea/Cache/RedisCache.php      | 97 +++++++++++++++++++
 .../Alchemy/Phrasea/Cache/RedisCacheTest.php  | 66 +++++++++++++
 2 files changed, 163 insertions(+)
 create mode 100644 lib/Alchemy/Phrasea/Cache/RedisCache.php
 create mode 100644 lib/unitTest/Alchemy/Phrasea/Cache/RedisCacheTest.php

diff --git a/lib/Alchemy/Phrasea/Cache/RedisCache.php b/lib/Alchemy/Phrasea/Cache/RedisCache.php
new file mode 100644
index 0000000000..704991a69f
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Cache/RedisCache.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2010 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Cache;
+
+use Doctrine\Common\Cache\AbstractCache;
+
+/**
+ *
+ * @package
+ * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
+ * @link        www.phraseanet.com
+ */
+class RedisCache extends AbstractCache
+{
+
+  /**
+   * @var Memcache
+   */
+  private $_redis;
+
+  /**
+   * Sets the redis instance to use.
+   *
+   * @param Redis $memcache
+   */
+  public function setRedis(\Redis $redis)
+  {
+    $this->_redis = $redis;
+  }
+
+  /**
+   * Gets the memcache instance used by the cache.
+   *
+   * @return Memcache
+   */
+  public function getRedis()
+  {
+    return $this->_redis;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIds()
+  {
+    return $this->_redis->keys('*');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function _doFetch($id)
+  {
+    return $this->_redis->get($id);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function _doContains($id)
+  {
+    return (bool) $this->_redis->get($id);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function _doSave($id, $data, $lifeTime = 0)
+  {
+    if (0 === $lifeTime)
+    {
+      return $this->_redis->set($id, $data);
+    }
+    else
+    {
+      return $this->_redis->setex($id, $lifeTime, $data);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function _doDelete($id)
+  {
+    return $this->_redis->delete($id);
+  }
+
+}
diff --git a/lib/unitTest/Alchemy/Phrasea/Cache/RedisCacheTest.php b/lib/unitTest/Alchemy/Phrasea/Cache/RedisCacheTest.php
new file mode 100644
index 0000000000..016bc8060e
--- /dev/null
+++ b/lib/unitTest/Alchemy/Phrasea/Cache/RedisCacheTest.php
@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2010 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ *
+ * @package
+ * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
+ * @link        www.phraseanet.com
+ */
+require_once __DIR__ . '/../../../PhraseanetPHPUnitAbstract.class.inc';
+
+class RedisTest extends \PhraseanetPHPUnitAbstract
+{
+
+  public function testBasics()
+  {
+    if (extension_loaded('memcached'))
+    {
+      $redis = new Redis();
+      $ok = @$redis->connect('127.0.0.1', 6379);
+      if (!$ok)
+      {
+        $this->markTestSkipped('The ' . __CLASS__ . ' requires the use of redis');
+      }
+    }
+    else
+    {
+      $this->markTestSkipped('The ' . __CLASS__ . ' requires the use of redis');
+    }
+
+    $cache = new \Alchemy\Phrasea\Cache\RedisCache();
+    $cache->setRedis($redis);
+    // Test save
+    $cache->save('test_key', 'testing this out');
+
+    // Test contains to test that save() worked
+    $this->assertTrue($cache->contains('test_key'));
+    
+    $cache->save('test_key1', 'testing this out', 20);
+
+    // Test contains to test that save() worked
+    $this->assertTrue($cache->contains('test_key1'));
+
+    // Test fetch
+    $this->assertEquals('testing this out', $cache->fetch('test_key'));
+
+    // Test delete
+    $cache->save('test_key2', 'test2');
+    $cache->delete('test_key2');
+    $this->assertFalse($cache->contains('test_key2'));
+
+    $ids = $cache->getIds();
+    $this->assertTrue(in_array('test_key', $ids));
+    
+    $this->assertEquals($redis, $cache->getRedis());
+  }
+
+}
\ No newline at end of file