|  | /* | 
|  | *  Copyright 2014 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #import "RTCIceServer+JSON.h" | 
|  |  | 
|  | @implementation RTCIceServer (JSON) | 
|  |  | 
|  | + (RTCIceServer *)serverFromJSONDictionary:(NSDictionary *)dictionary { | 
|  | NSArray *turnUrls = dictionary[@"urls"]; | 
|  | NSString *username = dictionary[@"username"] ?: @""; | 
|  | NSString *credential = dictionary[@"credential"] ?: @""; | 
|  | return [[RTCIceServer alloc] initWithURLStrings:turnUrls | 
|  | username:username | 
|  | credential:credential]; | 
|  | } | 
|  |  | 
|  | @end |