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