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wp-content/plugins/updraftplus/includes/WindowsAzure/Common/Internal/ConnectionStringSource.php

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+<?php
+
+/**
+ * LICENSE: 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.
+ * 
+ * PHP version 5
+ *
+ * @category  Microsoft
+ * @package   WindowsAzure\Common\Internal
+ * @author    Azure PHP SDK <azurephpsdk@microsoft.com>
+ * @copyright 2012 Microsoft Corporation
+ * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link      https://github.com/windowsazure/azure-sdk-for-php
+ */
+ 
+namespace WindowsAzure\Common\Internal;
+
+/**
+ * Holder for default connection string sources used in CloudConfigurationManager.
+ *
+ * @category  Microsoft
+ * @package   WindowsAzure\Common\Internal
+ * @author    Azure PHP SDK <azurephpsdk@microsoft.com>
+ * @copyright 2012 Microsoft Corporation
+ * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @version   Release: 0.4.1_2015-03
+ * @link      https://github.com/windowsazure/azure-sdk-for-php
+ */
+class ConnectionStringSource
+{
+    /**
+     * The list of all sources which comes as default.
+     * 
+     * @var type 
+     */
+    private static $_defaultSources;
+    
+    /**
+     * @var boolean
+     */
+    private static $_isInitialized;
+    
+    /**
+     * Environment variable source name.
+     */
+    const ENVIRONMENT_SOURCE = 'environment_source';
+    
+    /**
+     * Initializes the default sources.
+     * 
+     * @return none
+     */
+    private static function _init()
+    {
+        if (!self::$_isInitialized) {
+            self::$_defaultSources = array(
+                self::ENVIRONMENT_SOURCE => array(__CLASS__, 'environmentSource')
+            );
+            self::$_isInitialized  = true;
+        }        
+    }
+    
+    /**
+     * Gets a connection string value from the system environment.
+     * 
+     * @param string $key The connection string name.
+     * 
+     * @return string
+     */
+    public static function environmentSource($key)
+    {
+        Validate::isString($key, 'key');
+        
+        return getenv($key);
+    }
+    
+    /**
+     * Gets list of default sources.
+     * 
+     * @return array
+     */
+    public static function getDefaultSources()
+    {
+        self::_init();
+        return self::$_defaultSources;
+    }
+}
+
+