57115
|
1 |
/*
|
57160
|
2 |
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
|
57115
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
4 |
*
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
|
7 |
* published by the Free Software Foundation.
|
|
8 |
*
|
|
9 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
11 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
12 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
13 |
* accompanied this code).
|
|
14 |
*
|
|
15 |
* You should have received a copy of the GNU General Public License version
|
|
16 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
17 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
18 |
*
|
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
20 |
* or visit www.oracle.com if you need additional information or have any
|
|
21 |
* questions.
|
|
22 |
*/
|
|
23 |
|
|
24 |
import java.io.Closeable;
|
|
25 |
import java.io.InputStream;
|
|
26 |
import java.io.IOException;
|
|
27 |
import java.io.OutputStream;
|
|
28 |
import java.net.InetAddress;
|
|
29 |
import java.net.InetSocketAddress;
|
|
30 |
import java.net.ServerSocket;
|
|
31 |
import java.net.Socket;
|
|
32 |
import java.net.StandardProtocolFamily;
|
|
33 |
import java.util.ArrayList;
|
|
34 |
import java.util.Date;
|
|
35 |
import java.util.List;
|
|
36 |
import jdk.net.RdmaSockets;
|
|
37 |
|
|
38 |
import jdk.test.lib.Utils;
|
|
39 |
|
|
40 |
|
|
41 |
public class TestServers {
|
|
42 |
|
|
43 |
private TestServers() { }
|
|
44 |
|
|
45 |
/**
|
|
46 |
* An abstract server identifies a server which listens on a port on on a
|
|
47 |
* given machine.
|
|
48 |
*/
|
|
49 |
static abstract class AbstractServer {
|
|
50 |
|
|
51 |
private AbstractServer() {
|
|
52 |
}
|
|
53 |
|
|
54 |
public abstract int getPort();
|
|
55 |
|
|
56 |
public abstract InetAddress getAddress();
|
|
57 |
}
|
|
58 |
|
|
59 |
/**
|
|
60 |
* A downgraded type of AbstractServer which will refuse connections. Note:
|
|
61 |
* use it once and throw it away - this implementation opens an anonymous
|
|
62 |
* socket and closes it, returning the address of the closed socket. If
|
|
63 |
* other servers are started afterwards, the address/port might get reused
|
|
64 |
* and become connectable again - so it's not a good idea to assume that
|
|
65 |
* connections using this address/port will always be refused. Connections
|
|
66 |
* will be refused as long as the address/port of the refusing server has
|
|
67 |
* not been reused.
|
|
68 |
*/
|
|
69 |
static class RefusingServer extends AbstractServer {
|
|
70 |
|
|
71 |
final InetAddress address;
|
|
72 |
final int port;
|
|
73 |
|
|
74 |
private RefusingServer(InetAddress address, int port) {
|
|
75 |
this.address = address;
|
|
76 |
this.port = port;
|
|
77 |
}
|
|
78 |
|
|
79 |
@Override
|
|
80 |
public int getPort() {
|
|
81 |
return port;
|
|
82 |
}
|
|
83 |
|
|
84 |
@Override
|
|
85 |
public InetAddress getAddress() {
|
|
86 |
return address;
|
|
87 |
}
|
|
88 |
|
|
89 |
public static RefusingServer newRefusingServer() throws IOException {
|
|
90 |
return new RefusingServer(InetAddress.getLocalHost(),
|
|
91 |
Utils.refusingEndpoint().getPort());
|
|
92 |
}
|
|
93 |
}
|
|
94 |
|
|
95 |
/**
|
|
96 |
* An abstract class for implementing small TCP servers for the nio tests
|
|
97 |
* purposes. Disclaimer: This is a naive implementation that uses the old
|
|
98 |
* networking APIs (not those from {@code java.nio.*}) and shamelessly
|
|
99 |
* extends/creates Threads instead of using an executor service.
|
|
100 |
*/
|
|
101 |
static abstract class AbstractTcpServer extends AbstractServer
|
|
102 |
implements Runnable, Closeable {
|
|
103 |
|
|
104 |
protected final long linger; // #of ms to wait before responding
|
|
105 |
private Thread acceptThread; // thread waiting for accept
|
|
106 |
// list of opened connections that should be closed on close.
|
|
107 |
private List<TcpConnectionThread> connections = new ArrayList<>();
|
|
108 |
private ServerSocket serverSocket; // the server socket
|
|
109 |
private boolean started = false; // whether the server is started
|
|
110 |
Throwable error = null;
|
|
111 |
|
|
112 |
/**
|
|
113 |
* Creates a new abstract TCP server.
|
|
114 |
*
|
|
115 |
* @param linger the amount of time the server should wait before
|
|
116 |
* responding to requests.
|
|
117 |
*/
|
|
118 |
protected AbstractTcpServer(long linger) {
|
|
119 |
this.linger = linger;
|
|
120 |
}
|
|
121 |
|
|
122 |
/**
|
|
123 |
* The local port to which the server is bound.
|
|
124 |
*
|
|
125 |
* @return The local port to which the server is bound.
|
|
126 |
* @exception IllegalStateException is thrown if the server is not
|
|
127 |
* started.
|
|
128 |
*/
|
|
129 |
@Override
|
|
130 |
public final synchronized int getPort() {
|
|
131 |
if (!started) {
|
|
132 |
throw new IllegalStateException("Not started");
|
|
133 |
}
|
|
134 |
return serverSocket.getLocalPort();
|
|
135 |
}
|
|
136 |
|
|
137 |
/**
|
|
138 |
* The local address to which the server is bound.
|
|
139 |
*
|
|
140 |
* @return The local address to which the server is bound.
|
|
141 |
* @exception IllegalStateException is thrown if the server is not
|
|
142 |
* started.
|
|
143 |
*/
|
|
144 |
@Override
|
|
145 |
public final synchronized InetAddress getAddress() {
|
|
146 |
if (!started) {
|
|
147 |
throw new IllegalStateException("Not started");
|
|
148 |
}
|
|
149 |
return serverSocket.getInetAddress();
|
|
150 |
}
|
|
151 |
|
|
152 |
/**
|
|
153 |
* Tells whether the server is started.
|
|
154 |
*
|
|
155 |
* @return true if the server is started.
|
|
156 |
*/
|
|
157 |
public final synchronized boolean isStarted() {
|
|
158 |
return started;
|
|
159 |
}
|
|
160 |
|
|
161 |
/**
|
|
162 |
* Creates a new server socket.
|
|
163 |
*
|
|
164 |
* @param port local port to bind to.
|
|
165 |
* @param backlog requested maximum length of the queue of incoming
|
|
166 |
* connections.
|
|
167 |
* @param address local address to bind to.
|
|
168 |
* @return a new bound server socket ready to accept connections.
|
|
169 |
* @throws IOException if the socket cannot be created or bound.
|
|
170 |
*/
|
|
171 |
protected ServerSocket newServerSocket(int port, int backlog,
|
|
172 |
InetAddress address)
|
|
173 |
throws IOException {
|
|
174 |
ServerSocket ss = RdmaSockets.openServerSocket(StandardProtocolFamily.INET);
|
|
175 |
ss.bind(new InetSocketAddress(address, port), backlog);
|
|
176 |
return ss;
|
|
177 |
}
|
|
178 |
|
|
179 |
/**
|
|
180 |
* Starts listening for connections.
|
|
181 |
*
|
|
182 |
* @throws IOException if the server socket cannot be created or bound.
|
|
183 |
*/
|
|
184 |
public final synchronized void start() throws IOException {
|
|
185 |
if (started) {
|
|
186 |
return;
|
|
187 |
}
|
|
188 |
final ServerSocket socket =
|
|
189 |
newServerSocket(0, 100, InetAddress.getLocalHost());
|
|
190 |
serverSocket = socket;
|
|
191 |
acceptThread = new Thread(this);
|
|
192 |
acceptThread.setDaemon(true);
|
|
193 |
acceptThread.start();
|
|
194 |
started = true;
|
|
195 |
}
|
|
196 |
|
|
197 |
/**
|
|
198 |
* Calls {@code Thread.sleep(linger);}
|
|
199 |
*/
|
|
200 |
protected final void lingerIfRequired() {
|
|
201 |
if (linger > 0) {
|
|
202 |
try {
|
|
203 |
Thread.sleep(linger);
|
|
204 |
} catch (InterruptedException x) {
|
|
205 |
Thread.interrupted();
|
|
206 |
final ServerSocket socket = serverSocket();
|
|
207 |
if (socket != null && !socket.isClosed()) {
|
|
208 |
System.err.println("Thread interrupted...");
|
|
209 |
}
|
|
210 |
}
|
|
211 |
}
|
|
212 |
}
|
|
213 |
|
|
214 |
final synchronized ServerSocket serverSocket() {
|
|
215 |
return this.serverSocket;
|
|
216 |
}
|
|
217 |
|
|
218 |
/**
|
|
219 |
* The main accept loop.
|
|
220 |
*/
|
|
221 |
@Override
|
|
222 |
public final void run() {
|
|
223 |
final ServerSocket sSocket = serverSocket();
|
|
224 |
try {
|
|
225 |
Socket s;
|
|
226 |
while (isStarted() && !Thread.interrupted()
|
|
227 |
&& (s = sSocket.accept()) != null) {
|
|
228 |
lingerIfRequired();
|
|
229 |
listen(s);
|
|
230 |
}
|
|
231 |
} catch (Exception x) {
|
|
232 |
error = x;
|
|
233 |
} finally {
|
|
234 |
synchronized (this) {
|
|
235 |
if (!sSocket.isClosed()) {
|
|
236 |
try {
|
|
237 |
sSocket.close();
|
|
238 |
} catch (IOException x) {
|
|
239 |
System.err.println("Failed to close server socket");
|
|
240 |
}
|
|
241 |
}
|
|
242 |
if (started && this.serverSocket == sSocket) {
|
|
243 |
started = false;
|
|
244 |
this.serverSocket = null;
|
|
245 |
this.acceptThread = null;
|
|
246 |
}
|
|
247 |
}
|
|
248 |
}
|
|
249 |
}
|
|
250 |
|
|
251 |
/**
|
|
252 |
* Represents a connection accepted by the server.
|
|
253 |
*/
|
|
254 |
protected abstract class TcpConnectionThread extends Thread {
|
|
255 |
|
|
256 |
protected final Socket socket;
|
|
257 |
|
|
258 |
protected TcpConnectionThread(Socket socket) {
|
|
259 |
this.socket = socket;
|
|
260 |
this.setDaemon(true);
|
|
261 |
}
|
|
262 |
|
|
263 |
public void close() throws IOException {
|
|
264 |
socket.close();
|
|
265 |
interrupt();
|
|
266 |
}
|
|
267 |
}
|
|
268 |
|
|
269 |
/**
|
|
270 |
* Creates a new TcpConnnectionThread to handle the connection through
|
|
271 |
* an accepted socket.
|
|
272 |
*
|
|
273 |
* @param s the socket returned by {@code serverSocket.accept()}.
|
|
274 |
* @return a new TcpConnnectionThread to handle the connection through
|
|
275 |
* an accepted socket.
|
|
276 |
*/
|
|
277 |
protected abstract TcpConnectionThread createConnection(Socket s);
|
|
278 |
|
|
279 |
/**
|
|
280 |
* Creates and starts a new TcpConnectionThread to handle the accepted
|
|
281 |
* socket.
|
|
282 |
*
|
|
283 |
* @param s the socket returned by {@code serverSocket.accept()}.
|
|
284 |
*/
|
|
285 |
private synchronized void listen(Socket s) {
|
|
286 |
TcpConnectionThread c = createConnection(s);
|
|
287 |
c.start();
|
|
288 |
addConnection(c);
|
|
289 |
}
|
|
290 |
|
|
291 |
/**
|
|
292 |
* Add the connection to the list of accepted connections.
|
|
293 |
*
|
|
294 |
* @param connection an accepted connection.
|
|
295 |
*/
|
|
296 |
protected synchronized void addConnection(
|
|
297 |
TcpConnectionThread connection) {
|
|
298 |
connections.add(connection);
|
|
299 |
}
|
|
300 |
|
|
301 |
/**
|
|
302 |
* Remove the connection from the list of accepted connections.
|
|
303 |
*
|
|
304 |
* @param connection an accepted connection.
|
|
305 |
*/
|
|
306 |
protected synchronized void removeConnection(
|
|
307 |
TcpConnectionThread connection) {
|
|
308 |
connections.remove(connection);
|
|
309 |
}
|
|
310 |
|
|
311 |
/**
|
|
312 |
* Close the server socket and all the connections present in the list
|
|
313 |
* of accepted connections.
|
|
314 |
*
|
|
315 |
* @throws IOException
|
|
316 |
*/
|
|
317 |
@Override
|
|
318 |
public synchronized void close() throws IOException {
|
|
319 |
if (serverSocket != null && !serverSocket.isClosed()) {
|
|
320 |
serverSocket.close();
|
|
321 |
}
|
|
322 |
if (acceptThread != null) {
|
|
323 |
acceptThread.interrupt();
|
|
324 |
}
|
|
325 |
int failed = 0;
|
|
326 |
for (TcpConnectionThread c : connections) {
|
|
327 |
try {
|
|
328 |
c.close();
|
|
329 |
} catch (IOException x) {
|
|
330 |
// no matter - we're closing.
|
|
331 |
failed++;
|
|
332 |
}
|
|
333 |
}
|
|
334 |
connections.clear();
|
|
335 |
if (failed > 0) {
|
|
336 |
throw new IOException("Failed to close some connections");
|
|
337 |
}
|
|
338 |
}
|
|
339 |
}
|
|
340 |
|
|
341 |
/**
|
|
342 |
* A small TCP Server that emulates the echo service for tests purposes. See
|
|
343 |
* http://en.wikipedia.org/wiki/Echo_Protocol This server uses an anonymous
|
|
344 |
* port - NOT the standard port 7. We don't guarantee that its behavior
|
|
345 |
* exactly matches the RFC - the only purpose of this server is to have
|
|
346 |
* something that responds to nio tests...
|
|
347 |
*/
|
|
348 |
static class EchoServer extends AbstractTcpServer {
|
|
349 |
|
|
350 |
public EchoServer() {
|
|
351 |
this(0L);
|
|
352 |
}
|
|
353 |
|
|
354 |
public EchoServer(long linger) {
|
|
355 |
super(linger);
|
|
356 |
}
|
|
357 |
|
|
358 |
@Override
|
|
359 |
protected TcpConnectionThread createConnection(Socket s) {
|
|
360 |
return new EchoConnection(s);
|
|
361 |
}
|
|
362 |
|
|
363 |
private final class EchoConnection extends TcpConnectionThread {
|
|
364 |
|
|
365 |
public EchoConnection(Socket socket) {
|
|
366 |
super(socket);
|
|
367 |
}
|
|
368 |
|
|
369 |
@Override
|
|
370 |
public void run() {
|
|
371 |
try {
|
|
372 |
final InputStream is = socket.getInputStream();
|
|
373 |
final OutputStream out = socket.getOutputStream();
|
|
374 |
byte[] b = new byte[255];
|
|
375 |
int n;
|
|
376 |
while ((n = is.read(b)) > 0) {
|
|
377 |
lingerIfRequired();
|
|
378 |
out.write(b, 0, n);
|
|
379 |
}
|
|
380 |
} catch (IOException io) {
|
|
381 |
// fall through to finally
|
|
382 |
} finally {
|
|
383 |
if (!socket.isClosed()) {
|
|
384 |
try {
|
|
385 |
socket.close();
|
|
386 |
} catch (IOException x) {
|
|
387 |
System.err.println(
|
|
388 |
"Failed to close echo connection socket");
|
|
389 |
}
|
|
390 |
}
|
|
391 |
removeConnection(this);
|
|
392 |
}
|
|
393 |
}
|
|
394 |
}
|
|
395 |
|
|
396 |
public static EchoServer startNewServer() throws IOException {
|
|
397 |
return startNewServer(0);
|
|
398 |
}
|
|
399 |
|
|
400 |
public static EchoServer startNewServer(long linger) throws IOException {
|
|
401 |
final EchoServer echoServer = new EchoServer(linger);
|
|
402 |
echoServer.start();
|
|
403 |
return echoServer;
|
|
404 |
}
|
|
405 |
}
|
|
406 |
|
|
407 |
|
|
408 |
/**
|
|
409 |
* A small TCP Server that accept connections but does not response to any input.
|
|
410 |
*/
|
|
411 |
static final class NoResponseServer extends EchoServer {
|
|
412 |
public NoResponseServer() {
|
|
413 |
super(Long.MAX_VALUE);
|
|
414 |
}
|
|
415 |
|
|
416 |
public static NoResponseServer startNewServer() throws IOException {
|
|
417 |
final NoResponseServer noResponseServer = new NoResponseServer();
|
|
418 |
noResponseServer.start();
|
|
419 |
return noResponseServer;
|
|
420 |
}
|
|
421 |
}
|
|
422 |
|
|
423 |
|
|
424 |
/**
|
|
425 |
* A small TCP server that emulates the Day & Time service for tests
|
|
426 |
* purposes. See http://en.wikipedia.org/wiki/Daytime_Protocol This server
|
|
427 |
* uses an anonymous port - NOT the standard port 13. We don't guarantee
|
|
428 |
* that its behavior exactly matches the RFC - the only purpose of this
|
|
429 |
* server is to have something that responds to nio tests...
|
|
430 |
*/
|
|
431 |
static final class DayTimeServer extends AbstractTcpServer {
|
|
432 |
|
|
433 |
public DayTimeServer() {
|
|
434 |
this(0L);
|
|
435 |
}
|
|
436 |
|
|
437 |
public DayTimeServer(long linger) {
|
|
438 |
super(linger);
|
|
439 |
}
|
|
440 |
|
|
441 |
@Override
|
|
442 |
protected TcpConnectionThread createConnection(Socket s) {
|
|
443 |
return new DayTimeServerConnection(s);
|
|
444 |
}
|
|
445 |
|
|
446 |
@Override
|
|
447 |
protected void addConnection(TcpConnectionThread connection) {
|
|
448 |
// do nothing - the connection just write the date and terminates.
|
|
449 |
}
|
|
450 |
|
|
451 |
@Override
|
|
452 |
protected void removeConnection(TcpConnectionThread connection) {
|
|
453 |
// do nothing - we're not adding connections to the list...
|
|
454 |
}
|
|
455 |
|
|
456 |
private final class DayTimeServerConnection extends TcpConnectionThread {
|
|
457 |
|
|
458 |
public DayTimeServerConnection(Socket socket) {
|
|
459 |
super(socket);
|
|
460 |
}
|
|
461 |
|
|
462 |
@Override
|
|
463 |
public void run() {
|
|
464 |
try {
|
|
465 |
final OutputStream out = socket.getOutputStream();
|
|
466 |
lingerIfRequired();
|
|
467 |
out.write(new Date(System.currentTimeMillis())
|
|
468 |
.toString().getBytes("US-ASCII"));
|
|
469 |
out.flush();
|
|
470 |
} catch (IOException io) {
|
|
471 |
// fall through to finally
|
|
472 |
} finally {
|
|
473 |
if (!socket.isClosed()) {
|
|
474 |
try {
|
|
475 |
socket.close();
|
|
476 |
} catch (IOException x) {
|
|
477 |
System.err.println(
|
|
478 |
"Failed to close echo connection socket");
|
|
479 |
}
|
|
480 |
}
|
|
481 |
}
|
|
482 |
}
|
|
483 |
}
|
|
484 |
|
|
485 |
public static DayTimeServer startNewServer()
|
|
486 |
throws IOException {
|
|
487 |
return startNewServer(0);
|
|
488 |
}
|
|
489 |
|
|
490 |
public static DayTimeServer startNewServer(long linger)
|
|
491 |
throws IOException {
|
|
492 |
final DayTimeServer daytimeServer = new DayTimeServer(linger);
|
|
493 |
daytimeServer.start();
|
|
494 |
return daytimeServer;
|
|
495 |
}
|
|
496 |
}
|
|
497 |
}
|