1 /*
2  * Copyright (C) 2009 Google Inc.  All rights reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.polo.wire;
18 
19 import com.google.polo.pairing.PairingContext;
20 import com.google.polo.wire.json.JsonWireAdapter;
21 import com.google.polo.wire.protobuf.ProtobufWireAdapter;
22 import com.google.polo.wire.xml.XmlWireAdapter;
23 
24 /**
25  * Represents the various wire formats available.
26  */
27 public enum WireFormat {
28   PROTOCOL_BUFFERS,   // Protocol Buffers, implemented by ProtobufWireInterface
29   JSON,               // JSON, implemented by JsonWireInterface
30   XML;                // XML, implemented by XmlWireInterface
31 
32   /**
33    * Returns a new {@link PoloWireInterface} for this enum value.
34    *
35    * @param context  the {@link PairingContext} to use in construction
36    * @return         the new {@link PoloWireInterface}
37    */
getWireInterface(PairingContext context)38   public PoloWireInterface getWireInterface(PairingContext context) {
39     switch (this) {
40       case PROTOCOL_BUFFERS:
41         return ProtobufWireAdapter.fromContext(context);
42       case JSON:
43         return JsonWireAdapter.fromContext(context);
44       case XML:
45         return XmlWireAdapter.fromContext(context);
46     }
47     return null;
48   }
49 }
50