1 <?php
 2 /**
 3  * Copyright 2012-2014 Rackspace US, Inc.
 4  *
 5  * Licensed under the Apache License, Version 2.0 (the "License");
 6  * you may not use this file except in compliance with the License.
 7  * You may obtain a copy of the License at
 8  *
 9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 namespace OpenCloud\Common\Http\Message;
19 
20 use Guzzle\Http\Message\Response;
21 use OpenCloud\Common\Constants\Header;
22 use OpenCloud\Common\Constants\Mime;
23 use OpenCloud\Common\Exceptions\JsonError;
24 
25 class Formatter
26 {
27     public static function decode(Response $response)
28     {
29         if (strpos($response->getHeader(Header::CONTENT_TYPE), Mime::JSON) !== false) {
30             $string = (string) $response->getBody();
31             $response = json_decode($string);
32             self::checkJsonError($string);
33 
34             return $response;
35         }
36     }
37 
38     public static function encode($body)
39     {
40         return json_encode($body);
41     }
42 
43     public static function checkJsonError($string = null)
44     {
45         if (json_last_error()) {
46             $error = sprintf('%s', json_last_error_msg());
47             $message = ($string) ? sprintf('%s trying to decode: %s', $error, $string) : $error;
48             throw new JsonError($message);
49         }
50     }
51 }
52 

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