Merge pull request #32 from dmstr-forks/feature/google-cloud

added Google Cloud Filesystem

Author: schmunk42

src/GoogleCloudFilesystem.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * @link https://github.com/creocoder/yii2-flysystem
+ * @copyright Copyright (c) 2015 Alexander Kochetov
+ * @license http://opensource.org/licenses/BSD-3-Clause
+ */
+
+namespace creocoder\flysystem;
+
+use Google\Cloud\Storage\StorageClient;
+use Superbalist\Flysystem\GoogleStorage\GoogleStorageAdapter;
+use yii\base\InvalidConfigException;
+
+/**
+ * GoogleCloudFilesystem
+ *
+ * @author Tobias Munk <[email protected]>
+ */
+class GoogleCloudFilesystem extends Filesystem
+{
+    /**
+     * @var string
+     */
+    public $projectId;
+    /**
+     * @var string
+     */
+    public $keyFilePath;
+    /**
+     * @var string
+     */
+    public $bucket;
+
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        if ($this->projectId === null) {
+            throw new InvalidConfigException('The "projectId" property must be set.');
+        }
+
+        if ($this->keyFilePath === null) {
+            throw new InvalidConfigException('The "secret" property must be set.');
+        }
+
+        if ($this->bucket === null) {
+            throw new InvalidConfigException('The "bucket" property must be set.');
+        }
+
+        parent::init();
+    }
+
+    /**
+     * @return GoogleStorageAdapter
+     */
+    protected function prepareAdapter()
+    {
+        $config = [
+                'projectId' => $this->projectId,
+                'keyFilePath' => \Yii::getAlias($this->keyFilePath),
+        ];
+
+        $client = new StorageClient($config);
+        $bucket = $client->bucket($this->bucket);
+        return  new GoogleStorageAdapter($client, $bucket);
+    }
+}