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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
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42
43
44
45 public class DemuxingProtocolDecoderBugTest
46 {
47
48 private static void doTest(IoSession session) throws Exception
49 {
50 ProtocolDecoderOutput mock = EasyMock.createMock(ProtocolDecoderOutput.class);
51 mock.write(Character.valueOf('A'));
52 mock.write(Character.valueOf('B'));
53 mock.write(Integer.valueOf(1));
54 mock.write(Integer.valueOf(2));
55 mock.write(Character.valueOf('C'));
56 EasyMock.replay(mock);
57
58 IoBuffer buffer = IoBuffer.allocate(1000);
59 buffer.putString("AB12C", Charset.defaultCharset().newEncoder());
60 buffer.flip();
61
62 DemuxingProtocolDecoder decoder = new DemuxingProtocolDecoder();
63 decoder.addMessageDecoder(CharacterMessageDecoder.class);
64 decoder.addMessageDecoder(IntegerMessageDecoder.class);
65
66 decoder.decode(session,buffer,mock);
67
68 EasyMock.verify(mock);
69 }
70
71 public static class CharacterMessageDecoder extends MessageDecoderAdapter
72 {
73 public MessageDecoderResult decodable(IoSession session, IoBuffer in)
74 {
75 return Character.isDigit((char)in.get())
76 ? MessageDecoderResult.NOT_OK
77 : MessageDecoderResult.OK;
78 }
79
80 public MessageDecoderResult decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception
81 {
82 out.write(Character.valueOf((char)in.get()));
83 return MessageDecoderResult.OK;
84 }
85 }
86
87 public static class IntegerMessageDecoder extends MessageDecoderAdapter
88 {
89 public MessageDecoderResult decodable(IoSession session, IoBuffer in)
90 {
91 return Character.isDigit((char)in.get())
92 ? MessageDecoderResult.OK
93 : MessageDecoderResult.NOT_OK;
94 }
95
96 public MessageDecoderResult decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception
97 {
98 out.write(Integer.parseInt("" + (char)in.get()));
99 return MessageDecoderResult.OK;
100 }
101 }
102
103 private static class SessionStub extends DummySession
104 {
105 public SessionStub(boolean fragmented)
106 {
107 setTransportMetadata(
108 new DefaultTransportMetadata(
109 "nio", "socket", false, fragmented,
110 InetSocketAddress.class,
111 SocketSessionConfig.class,
112 IoBuffer.class, FileRegion.class)
113 );
114 }
115 }
116
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119
120 @Test
121 public void testFragmentedTransport() throws Exception
122 {
123 doTest(new SessionStub(true));
124 }
125
126
127
128
129 @Test
130 public void testNonFragmentedTransport() throws Exception
131 {
132 doTest(new SessionStub(false));
133 }
134 }