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20 package org.apache.mina.transport;
21
22 import static org.junit.Assert.assertEquals;
23 import static org.junit.Assert.assertFalse;
24 import static org.junit.Assert.assertNotNull;
25 import static org.junit.Assert.assertNull;
26 import static org.junit.Assert.assertTrue;
27 import static org.junit.Assert.fail;
28
29 import java.io.IOException;
30 import java.net.SocketAddress;
31 import java.util.Collection;
32
33 import org.apache.mina.core.buffer.IoBuffer;
34 import org.apache.mina.core.future.ConnectFuture;
35 import org.apache.mina.core.service.IoAcceptor;
36 import org.apache.mina.core.service.IoConnector;
37 import org.apache.mina.core.service.IoHandlerAdapter;
38 import org.apache.mina.core.session.IdleStatus;
39 import org.apache.mina.core.session.IoSession;
40 import org.apache.mina.transport.socket.DatagramAcceptor;
41 import org.apache.mina.transport.socket.DatagramSessionConfig;
42 import org.apache.mina.transport.socket.SocketAcceptor;
43 import org.apache.mina.transport.socket.SocketSessionConfig;
44 import org.junit.After;
45 import org.junit.Ignore;
46 import org.junit.Test;
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
49
50
51
52
53
54
55 public abstract class AbstractBindTest {
56 protected final IoAcceptor acceptor;
57
58 protected int port;
59
60 public AbstractBindTest(IoAcceptor acceptor) {
61 this.acceptor = acceptor;
62 }
63
64 protected abstract SocketAddress createSocketAddress(int port);
65
66 protected abstract int getPort(SocketAddress address);
67
68 protected abstract IoConnector newConnector();
69
70 protected void bind(boolean reuseAddress) throws IOException {
71 acceptor.setHandler(new EchoProtocolHandler());
72
73 setReuseAddress(reuseAddress);
74
75
76 boolean socketBound = false;
77
78
79
80
81 for (port = 1024; port <= 65535; port++) {
82 socketBound = false;
83 try {
84 acceptor.setDefaultLocalAddress(createSocketAddress(port));
85 acceptor.bind();
86 socketBound = true;
87 break;
88 } catch (IOException e) {
89
90 }
91 }
92
93
94 if (!socketBound) {
95 throw new IOException("Cannot bind any test port.");
96 }
97
98
99 }
100
101 private void setReuseAddress(boolean reuseAddress) {
102 if (acceptor instanceof DatagramAcceptor) {
103 ((DatagramSessionConfig) acceptor.getSessionConfig()).setReuseAddress(reuseAddress);
104 } else if (acceptor instanceof SocketAcceptor) {
105 ((SocketAcceptor) acceptor).setReuseAddress(reuseAddress);
106 }
107 }
108
109 @After
110 public void tearDown() {
111 try {
112 acceptor.dispose();
113 } catch (Exception e) {
114
115 }
116
117 acceptor.setDefaultLocalAddress(null);
118 }
119
120 @Test
121 public void testAnonymousBind() throws Exception {
122 acceptor.setHandler(new IoHandlerAdapter());
123 acceptor.setDefaultLocalAddress(null);
124 acceptor.bind();
125 assertNotNull(acceptor.getLocalAddress());
126 acceptor.unbind(acceptor.getLocalAddress());
127 assertNull(acceptor.getLocalAddress());
128 acceptor.setDefaultLocalAddress(createSocketAddress(0));
129 acceptor.bind();
130 assertNotNull(acceptor.getLocalAddress());
131 assertTrue(getPort(acceptor.getLocalAddress()) != 0);
132 acceptor.unbind(acceptor.getLocalAddress());
133 }
134
135 @Test
136 public void testDuplicateBind() throws IOException {
137 bind(false);
138
139 try {
140 acceptor.bind();
141 fail("Exception is not thrown");
142 } catch (Exception e) {
143
144 assertTrue(true);
145 }
146 }
147
148 @Test
149 public void testDuplicateUnbind() throws IOException {
150 bind(false);
151
152
153 acceptor.unbind();
154
155
156 acceptor.unbind();
157 }
158
159 @Test
160 public void testManyTimes() throws IOException {
161 bind(true);
162
163 for (int i = 0; i < 1024; i++) {
164 acceptor.unbind();
165 acceptor.bind();
166 }
167 }
168
169 @Test
170 public void testUnbindDisconnectsClients() throws Exception {
171 bind(true);
172 IoConnector connector = newConnector();
173 IoSession[] sessions = new IoSession[5];
174 connector.setHandler(new IoHandlerAdapter());
175 for (int i = 0; i < sessions.length; i++) {
176 ConnectFuture future = connector.connect(createSocketAddress(port));
177 future.awaitUninterruptibly();
178 sessions[i] = future.getSession();
179 assertTrue(sessions[i].isConnected());
180 assertTrue(sessions[i].write(IoBuffer.allocate(1)).awaitUninterruptibly().isWritten());
181 }
182
183
184 Thread.sleep(500);
185
186 Collection<IoSession> managedSessions = acceptor.getManagedSessions().values();
187 assertEquals(5, managedSessions.size());
188
189 acceptor.unbind();
190
191
192 Thread.sleep(500);
193
194 assertEquals(0, managedSessions.size());
195 for (IoSession element : managedSessions) {
196 assertFalse(element.isConnected());
197 }
198 }
199
200 @Test
201 public void testUnbindResume() throws Exception {
202 bind(true);
203 IoConnector connector = newConnector();
204 IoSession session = null;
205 connector.setHandler(new IoHandlerAdapter());
206
207 ConnectFuture future = connector.connect(createSocketAddress(port));
208 future.awaitUninterruptibly();
209 session = future.getSession();
210 assertTrue(session.isConnected());
211 assertTrue(session.write(IoBuffer.allocate(1)).awaitUninterruptibly().isWritten());
212
213
214 Thread.sleep(500);
215
216 Collection<IoSession> managedSession = acceptor.getManagedSessions().values();
217 assertEquals(1, managedSession.size());
218
219 acceptor.unbind();
220
221
222 Thread.sleep(500);
223
224 assertEquals(0, managedSession.size());
225 for (IoSession element : managedSession) {
226 assertFalse(element.isConnected());
227 }
228
229
230 bind(true);
231
232
233 future = connector.connect(createSocketAddress(port));
234 future.awaitUninterruptibly();
235 session = future.getSession();
236 assertTrue(session.isConnected());
237 assertTrue(session.write(IoBuffer.allocate(1)).awaitUninterruptibly().isWritten());
238
239
240 Thread.sleep(500);
241
242 managedSession = acceptor.getManagedSessions().values();
243 assertEquals(1, managedSession.size());
244 }
245
246 @Test
247 @Ignore
248 public void testRegressively() throws IOException {
249 setReuseAddress(true);
250
251 SocketAddress addr = createSocketAddress(port);
252 EchoProtocolHandler handler = new EchoProtocolHandler();
253 acceptor.setDefaultLocalAddress(addr);
254 acceptor.setHandler(handler);
255 for (int i = 0; i < 1048576; i++) {
256 acceptor.bind();
257 acceptor.unbind();
258 }
259 bind(false);
260 }
261
262 private static class EchoProtocolHandler extends IoHandlerAdapter {
263 private static final Logger LOG = LoggerFactory.getLogger(EchoProtocolHandler.class);
264
265
266
267
268 public EchoProtocolHandler() {
269 super();
270 }
271
272 @Override
273 public void sessionCreated(IoSession session) {
274 if (session.getConfig() instanceof SocketSessionConfig) {
275 ((SocketSessionConfig) session.getConfig()).setReceiveBufferSize(2048);
276 }
277
278 session.getConfig().setIdleTime(IdleStatus.BOTH_IDLE, 10);
279 }
280
281 @Override
282 public void sessionIdle(IoSession session, IdleStatus status) {
283 LOG.info("*** IDLE #" + session.getIdleCount(IdleStatus.BOTH_IDLE) + " ***");
284 }
285
286 @Override
287 public void exceptionCaught(IoSession session, Throwable cause) {
288
289 session.close(true);
290 }
291
292 @Override
293 public void messageReceived(IoSession session, Object message) throws Exception {
294 if (!(message instanceof IoBuffer)) {
295 return;
296 }
297
298 IoBuffer rb = (IoBuffer) message;
299
300 IoBuffer wb = IoBuffer.allocate(rb.remaining());
301 wb.put(rb);
302 wb.flip();
303 session.write(wb);
304 }
305 }
306 }