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20 package org.apache.mina.filter.codec;
21
22 import org.apache.mina.filter.codec.demux.MessageDecoderResult;
23 import org.apache.mina.filter.codec.demux.MessageDecoderAdapter;
24 import org.apache.mina.filter.codec.demux.DemuxingProtocolDecoder;
25 import org.apache.mina.filter.codec.ProtocolDecoderOutput;
26 import org.apache.mina.core.session.IoSession;
27 import org.apache.mina.core.session.DummySession;
28 import org.apache.mina.core.buffer.IoBuffer;
29 import org.apache.mina.core.service.DefaultTransportMetadata;
30 import org.apache.mina.core.file.FileRegion;
31 import org.apache.mina.transport.socket.SocketSessionConfig;
32 import org.easymock.EasyMock;
33 import org.junit.Test;
34
35 import java.net.InetSocketAddress;
36 import java.nio.charset.Charset;
37
38
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41
42
43
44 public class DemuxingProtocolDecoderBugTest
45 {
46
47 private static void doTest(IoSession session) throws Exception
48 {
49 ProtocolDecoderOutput mock = EasyMock.createMock(ProtocolDecoderOutput.class);
50 mock.write(Character.valueOf('A'));
51 mock.write(Character.valueOf('B'));
52 mock.write(Integer.valueOf(1));
53 mock.write(Integer.valueOf(2));
54 mock.write(Character.valueOf('C'));
55 EasyMock.replay(mock);
56
57 IoBuffer buffer = IoBuffer.allocate(1000);
58 buffer.putString("AB12C", Charset.defaultCharset().newEncoder());
59 buffer.flip();
60
61 DemuxingProtocolDecoder decoder = new DemuxingProtocolDecoder();
62 decoder.addMessageDecoder(CharacterMessageDecoder.class);
63 decoder.addMessageDecoder(IntegerMessageDecoder.class);
64
65 decoder.decode(session,buffer,mock);
66
67 EasyMock.verify(mock);
68 }
69
70 public static class CharacterMessageDecoder extends MessageDecoderAdapter
71 {
72 public MessageDecoderResult decodable(IoSession session, IoBuffer in)
73 {
74 return Character.isDigit((char)in.get())
75 ? MessageDecoderResult.NOT_OK
76 : MessageDecoderResult.OK;
77 }
78
79 public MessageDecoderResult decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception
80 {
81 out.write(Character.valueOf((char)in.get()));
82 return MessageDecoderResult.OK;
83 }
84 }
85
86 public static class IntegerMessageDecoder extends MessageDecoderAdapter
87 {
88 public MessageDecoderResult decodable(IoSession session, IoBuffer in)
89 {
90 return Character.isDigit((char)in.get())
91 ? MessageDecoderResult.OK
92 : MessageDecoderResult.NOT_OK;
93 }
94
95 public MessageDecoderResult decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception
96 {
97 out.write(Integer.parseInt("" + (char)in.get()));
98 return MessageDecoderResult.OK;
99 }
100 }
101
102 private static class SessionStub extends DummySession
103 {
104 public SessionStub(boolean fragmented)
105 {
106 setTransportMetadata(
107 new DefaultTransportMetadata(
108 "nio", "socket", false, fragmented,
109 InetSocketAddress.class,
110 SocketSessionConfig.class,
111 IoBuffer.class, FileRegion.class)
112 );
113 }
114 }
115
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118
119 @Test
120 public void testFragmentedTransport() throws Exception
121 {
122 doTest(new SessionStub(true));
123 }
124
125
126
127
128 @Test
129 public void testNonFragmentedTransport() throws Exception
130 {
131 doTest(new SessionStub(false));
132 }
133 }