runff 1.0 commit

lib/SimpleSAML/Store/Memcache.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace SimpleSAML\Store;
+
+use \SimpleSAML_Configuration as Configuration;
+use \SimpleSAML\Store;
+
+/**
+ * A memcache based data store.
+ *
+ * @package SimpleSAMLphp
+ */
+class Memcache extends Store
+{
+    /**
+     * This variable contains the session name prefix.
+     *
+     * @var string
+     */
+    private $prefix;
+
+
+    /**
+     * This function implements the constructor for this class. It loads the Memcache configuration.
+     */
+    protected function __construct()
+    {
+        $config = Configuration::getInstance();
+        $this->prefix = $config->getString('memcache_store.prefix', 'simpleSAMLphp');
+    }
+
+
+    /**
+     * Retrieve a value from the data store.
+     *
+     * @param string $type The data type.
+     * @param string $key The key.
+     * @return mixed|null The value.
+     */
+    public function get($type, $key)
+    {
+        assert(is_string($type));
+        assert(is_string($key));
+
+        return \SimpleSAML_Memcache::get($this->prefix . '.' . $type . '.' . $key);
+    }
+
+
+    /**
+     * Save a value to the data store.
+     *
+     * @param string $type The data type.
+     * @param string $key The key.
+     * @param mixed $value The value.
+     * @param int|NULL $expire  The expiration time (unix timestamp), or NULL if it never expires.
+     */
+    public function set($type, $key, $value, $expire = null)
+    {
+        assert(is_string($type));
+        assert(is_string($key));
+        assert($expire === null || (is_int($expire) && $expire > 2592000));
+
+        if ($expire === null) {
+            $expire = 0;
+        }
+
+        \SimpleSAML_Memcache::set($this->prefix . '.' . $type . '.' . $key, $value, $expire);
+    }
+
+
+    /**
+     * Delete a value from the data store.
+     *
+     * @param string $type The data type.
+     * @param string $key The key.
+     */
+    public function delete($type, $key)
+    {
+        assert(is_string($type));
+        assert(is_string($key));
+
+        \SimpleSAML_Memcache::delete($this->prefix . '.' . $type . '.' . $key);
+    }
+}