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\LoadBalancer\Resource;
19: 
20: /**
21:  * Session persistence is a feature of the load balancing service that forces
22:  * multiple requests, of the same protocol, from clients to be directed to the
23:  * same node. This is common with many web applications that do not inherently
24:  * share application state between back-end servers. Two session persistence
25:  * modes are available, as described in the following table:
26:  *
27:  * * HTTP_COOKIE: A session persistence mechanism that inserts an HTTP cookie
28:  *      and is used to determine the destination back-end node. This is supported
29:  *      for HTTP load balancing only.
30:  *
31:  * * SOURCE_IP: A session persistence mechanism that will keep track of the
32:  *      source IP address that is mapped and is able to determine the destination
33:  *      back-end node. This is supported for HTTPS pass-through and non-HTTP
34:  *      load balancing only.
35:  */
36: class SessionPersistence extends NonIdUriResource
37: {
38:     /**
39:      * Mode in which session persistence mechanism operates. Can either be set
40:      * to HTTP_COOKIE or SOURCE_IP.
41:      *
42:      * @var string
43:      */
44:     public $persistenceType;
45: 
46:     protected static $json_name = 'sessionPersistence';
47:     protected static $url_resource = 'sessionpersistence';
48: 
49:     protected $createKeys = array('persistenceType');
50: }
51: