1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.websocket.jsr356.annotations;
20
21 import javax.websocket.Decoder;
22 import javax.websocket.OnMessage;
23
24 import org.eclipse.jetty.websocket.common.events.annotated.InvalidSignatureException;
25 import org.eclipse.jetty.websocket.jsr356.annotations.Param.Role;
26 import org.eclipse.jetty.websocket.jsr356.metadata.DecoderMetadata;
27
28 /**
29 * Param handling for Text or Binary @{@link OnMessage} parameters declared as {@link Decoder}s
30 */
31 public class JsrParamIdDecoder extends JsrParamIdOnMessage implements IJsrParamId
32 {
33 private final DecoderMetadata metadata;
34
35 public JsrParamIdDecoder(DecoderMetadata metadata)
36 {
37 this.metadata = metadata;
38 }
39
40 @Override
41 public boolean process(Param param, JsrCallable callable) throws InvalidSignatureException
42 {
43 if (param.type.isAssignableFrom(metadata.getObjectType()))
44 {
45 assertPartialMessageSupportDisabled(param,callable);
46
47 switch (metadata.getMessageType())
48 {
49 case TEXT:
50 if (metadata.isStreamed())
51 {
52 param.bind(Role.MESSAGE_TEXT_STREAM);
53 }
54 else
55 {
56 param.bind(Role.MESSAGE_TEXT);
57 }
58 break;
59 case BINARY:
60 if (metadata.isStreamed())
61 {
62 param.bind(Role.MESSAGE_BINARY_STREAM);
63 }
64 else
65 {
66 param.bind(Role.MESSAGE_BINARY);
67 }
68 break;
69 case PONG:
70 param.bind(Role.MESSAGE_PONG);
71 break;
72 }
73 callable.setDecoderClass(metadata.getCoderClass());
74 return true;
75 }
76 return false;
77 }
78 }