1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. 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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.codec.rtsp;
17
18 import io.netty.handler.codec.http.HttpMethod;
19
20 import java.util.HashMap;
21 import java.util.Map;
22
23 /**
24 * The request getMethod of RTSP.
25 */
26 public final class RtspMethods {
27
28 /**
29 * The OPTIONS getMethod represents a request for information about the communication options
30 * available on the request/response chain identified by the Request-URI. This getMethod allows
31 * the client to determine the options and/or requirements associated with a resource, or the
32 * capabilities of a server, without implying a resource action or initiating a resource
33 * retrieval.
34 */
35 public static final HttpMethod OPTIONS = HttpMethod.OPTIONS;
36
37 /**
38 * The DESCRIBE getMethod retrieves the description of a presentation or
39 * media object identified by the request URL from a server.
40 */
41 public static final HttpMethod DESCRIBE = new HttpMethod("DESCRIBE");
42
43 /**
44 * The ANNOUNCE posts the description of a presentation or media object
45 * identified by the request URL to a server, or updates the client-side
46 * session description in real-time.
47 */
48 public static final HttpMethod ANNOUNCE = new HttpMethod("ANNOUNCE");
49
50 /**
51 * The SETUP request for a URI specifies the transport mechanism to be
52 * used for the streamed media.
53 */
54 public static final HttpMethod SETUP = new HttpMethod("SETUP");
55
56 /**
57 * The PLAY getMethod tells the server to start sending data via the
58 * mechanism specified in SETUP.
59 */
60 public static final HttpMethod PLAY = new HttpMethod("PLAY");
61
62 /**
63 * The PAUSE request causes the stream delivery to be interrupted
64 * (halted) temporarily.
65 */
66 public static final HttpMethod PAUSE = new HttpMethod("PAUSE");
67
68 /**
69 * The TEARDOWN request stops the stream delivery for the given URI,
70 * freeing the resources associated with it.
71 */
72 public static final HttpMethod TEARDOWN = new HttpMethod("TEARDOWN");
73
74 /**
75 * The GET_PARAMETER request retrieves the value of a parameter of a
76 * presentation or stream specified in the URI.
77 */
78 public static final HttpMethod GET_PARAMETER = new HttpMethod("GET_PARAMETER");
79
80 /**
81 * The SET_PARAMETER requests to set the value of a parameter for a
82 * presentation or stream specified by the URI.
83 */
84 public static final HttpMethod SET_PARAMETER = new HttpMethod("SET_PARAMETER");
85
86 /**
87 * The REDIRECT request informs the client that it must connect to another
88 * server location.
89 */
90 public static final HttpMethod REDIRECT = new HttpMethod("REDIRECT");
91
92 /**
93 * The RECORD getMethod initiates recording a range of media data according to
94 * the presentation description.
95 */
96 public static final HttpMethod RECORD = new HttpMethod("RECORD");
97
98 private static final Map<String, HttpMethod> methodMap = new HashMap<String, HttpMethod>();
99
100 static {
101 methodMap.put(DESCRIBE.toString(), DESCRIBE);
102 methodMap.put(ANNOUNCE.toString(), ANNOUNCE);
103 methodMap.put(GET_PARAMETER.toString(), GET_PARAMETER);
104 methodMap.put(OPTIONS.toString(), OPTIONS);
105 methodMap.put(PAUSE.toString(), PAUSE);
106 methodMap.put(PLAY.toString(), PLAY);
107 methodMap.put(RECORD.toString(), RECORD);
108 methodMap.put(REDIRECT.toString(), REDIRECT);
109 methodMap.put(SETUP.toString(), SETUP);
110 methodMap.put(SET_PARAMETER.toString(), SET_PARAMETER);
111 methodMap.put(TEARDOWN.toString(), TEARDOWN);
112 }
113
114 /**
115 * Returns the {@link HttpMethod} represented by the specified name.
116 * If the specified name is a standard RTSP getMethod name, a cached instance
117 * will be returned. Otherwise, a new instance will be returned.
118 */
119 public static HttpMethod valueOf(String name) {
120 if (name == null) {
121 throw new NullPointerException("name");
122 }
123
124 name = name.trim().toUpperCase();
125 if (name.isEmpty()) {
126 throw new IllegalArgumentException("empty name");
127 }
128
129 HttpMethod result = methodMap.get(name);
130 if (result != null) {
131 return result;
132 } else {
133 return new HttpMethod(name);
134 }
135 }
136
137 private RtspMethods() {
138 }
139 }