1 files changed, 182 insertions, 0 deletions
diff --git a/Postman/Postman-Mail/google-api-php-client-1.1.2/src/Google/Cache/Memcache.php b/Postman/Postman-Mail/google-api-php-client-1.1.2/src/Google/Cache/Memcache.php
new file mode 100644
index 0000000..f588b37
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-php-client-1.1.2/src/Google/Cache/Memcache.php
@@ -0,0 +1,182 @@
+<?php
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../autoload.php');
+
+/**
+ * A persistent storage class based on the memcache, which is not
+ * really very persistent, as soon as you restart your memcache daemon
+ * the storage will be wiped.
+ *
+ * Will use either the memcache or memcached extensions, preferring
+ * memcached.
+ *
+ * @author Chris Chabot <chabotc@google.com>
+ */
+class Postman_Google_Cache_Memcache extends Postman_Google_Cache_Abstract
+{
+  private $connection = false;
+  private $mc = false;
+  private $host;
+  private $port;
+
+  /**
+   * @var Postman_Google_Client the current client
+   */
+  private $client;
+
+  public function __construct(Postman_Google_Client $client)
+  {
+    if (!function_exists('memcache_connect') && !class_exists("Memcached")) {
+      $error = "Memcache functions not available";
+
+      $client->getLogger()->error($error);
+      throw new Postman_Google_Cache_Exception($error);
+    }
+
+    $this->client = $client;
+
+    if ($client->isAppEngine()) {
+      // No credentials needed for GAE.
+      $this->mc = new Memcached();
+      $this->connection = true;
+    } else {
+      $this->host = $client->getClassConfig($this, 'host');
+      $this->port = $client->getClassConfig($this, 'port');
+      if (empty($this->host) || (empty($this->port) && (string) $this->port != "0")) {
+        $error = "You need to supply a valid memcache host and port";
+
+        $client->getLogger()->error($error);
+        throw new Postman_Google_Cache_Exception($error);
+      }
+    }
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function get($key, $expiration = false)
+  {
+    $this->connect();
+    $ret = false;
+    if ($this->mc) {
+      $ret = $this->mc->get($key);
+    } else {
+      $ret = memcache_get($this->connection, $key);
+    }
+    if ($ret === false) {
+      $this->client->getLogger()->debug(
+          'Memcache cache miss',
+          array('key' => $key)
+      );
+      return false;
+    }
+    if (is_numeric($expiration) && (time() - $ret['time'] > $expiration)) {
+      $this->client->getLogger()->debug(
+          'Memcache cache miss (expired)',
+          array('key' => $key, 'var' => $ret)
+      );
+      $this->delete($key);
+      return false;
+    }
+
+    $this->client->getLogger()->debug(
+        'Memcache cache hit',
+        array('key' => $key, 'var' => $ret)
+    );
+
+    return $ret['data'];
+  }
+
+  /**
+   * @inheritDoc
+   * @param string $key
+   * @param string $value
+   * @throws Postman_Google_Cache_Exception
+   */
+  public function set($key, $value)
+  {
+    $this->connect();
+    // we store it with the cache_time default expiration so objects will at
+    // least get cleaned eventually.
+    $data = array('time' => time(), 'data' => $value);
+    $rc = false;
+    if ($this->mc) {
+      $rc = $this->mc->set($key, $data);
+    } else {
+      $rc = memcache_set($this->connection, $key, $data, false);
+    }
+    if ($rc == false) {
+      $this->client->getLogger()->error(
+          'Memcache cache set failed',
+          array('key' => $key, 'var' => $data)
+      );
+
+      throw new Postman_Google_Cache_Exception("Couldn't store data in cache");
+    }
+
+    $this->client->getLogger()->debug(
+        'Memcache cache set',
+        array('key' => $key, 'var' => $data)
+    );
+  }
+
+  /**
+   * @inheritDoc
+   * @param String $key
+   */
+  public function delete($key)
+  {
+    $this->connect();
+    if ($this->mc) {
+      $this->mc->delete($key, 0);
+    } else {
+      memcache_delete($this->connection, $key, 0);
+    }
+
+    $this->client->getLogger()->debug(
+        'Memcache cache delete',
+        array('key' => $key)
+    );
+  }
+
+  /**
+   * Lazy initialiser for memcache connection. Uses pconnect for to take
+   * advantage of the persistence pool where possible.
+   */
+  private function connect()
+  {
+    if ($this->connection) {
+      return;
+    }
+
+    if (class_exists("Memcached")) {
+      $this->mc = new Memcached();
+      $this->mc->addServer($this->host, $this->port);
+       $this->connection = true;
+    } else {
+      $this->connection = memcache_pconnect($this->host, $this->port);
+    }
+
+    if (! $this->connection) {
+      $error = "Couldn't connect to memcache server";
+
+      $this->client->getLogger()->error($error);
+      throw new Postman_Google_Cache_Exception($error);
+    }
+  }
+}