/
AsyncIOTest.java
314 lines (285 loc) · 11.3 KB
/
AsyncIOTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
//
// ========================================================================
// Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.http2.client;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import javax.servlet.AsyncContext;
import javax.servlet.ReadListener;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.WriteListener;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.http.HttpFields;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.http2.api.Session;
import org.eclipse.jetty.http2.api.Stream;
import org.eclipse.jetty.http2.frames.DataFrame;
import org.eclipse.jetty.http2.frames.HeadersFrame;
import org.eclipse.jetty.http2.frames.SettingsFrame;
import org.eclipse.jetty.server.HttpOutput;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.FuturePromise;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class AsyncIOTest extends AbstractTest
{
@Test
public void testLastContentAvailableBeforeService() throws Exception
{
start(new HttpServlet()
{
@Override
protected void service(final HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
// Wait for the data to fully arrive.
sleep(1000);
final AsyncContext asyncContext = request.startAsync();
asyncContext.setTimeout(0);
request.getInputStream().setReadListener(new EmptyReadListener()
{
@Override
public void onDataAvailable() throws IOException
{
ServletInputStream input = request.getInputStream();
while (input.isReady())
{
int read = input.read();
if (read < 0)
break;
}
if (input.isFinished())
asyncContext.complete();
}
});
}
});
Session session = newClient(new Session.Listener.Adapter());
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame = new HeadersFrame(metaData, null, false);
final CountDownLatch latch = new CountDownLatch(1);
FuturePromise<Stream> promise = new FuturePromise<>();
session.newStream(frame, promise, new Stream.Listener.Adapter()
{
@Override
public void onHeaders(Stream stream, HeadersFrame frame)
{
if (frame.isEndStream())
latch.countDown();
}
});
Stream stream = promise.get(5, TimeUnit.SECONDS);
stream.data(new DataFrame(stream.getId(), ByteBuffer.allocate(16), true), Callback.NOOP);
assertTrue(latch.await(5, TimeUnit.SECONDS));
}
@Test
public void testLastContentAvailableAfterServiceReturns() throws Exception
{
start(new HttpServlet()
{
@Override
protected void service(final HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
final AsyncContext asyncContext = request.startAsync();
asyncContext.setTimeout(0);
request.getInputStream().setReadListener(new EmptyReadListener()
{
@Override
public void onDataAvailable() throws IOException
{
ServletInputStream input = request.getInputStream();
while (input.isReady())
{
int read = input.read();
if (read < 0)
break;
}
if (input.isFinished())
asyncContext.complete();
}
});
}
});
Session session = newClient(new Session.Listener.Adapter());
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame = new HeadersFrame(metaData, null, false);
final CountDownLatch latch = new CountDownLatch(1);
FuturePromise<Stream> promise = new FuturePromise<>();
session.newStream(frame, promise, new Stream.Listener.Adapter()
{
@Override
public void onHeaders(Stream stream, HeadersFrame frame)
{
if (frame.isEndStream())
latch.countDown();
}
});
Stream stream = promise.get(5, TimeUnit.SECONDS);
// Wait until service() returns.
Thread.sleep(1000);
stream.data(new DataFrame(stream.getId(), ByteBuffer.allocate(16), true), Callback.NOOP);
assertTrue(latch.await(5, TimeUnit.SECONDS));
}
@Test
public void testSomeContentAvailableAfterServiceReturns() throws Exception
{
final AtomicInteger count = new AtomicInteger();
start(new HttpServlet()
{
@Override
protected void service(final HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
final AsyncContext asyncContext = request.startAsync();
asyncContext.setTimeout(0);
request.getInputStream().setReadListener(new EmptyReadListener()
{
@Override
public void onDataAvailable() throws IOException
{
count.incrementAndGet();
ServletInputStream input = request.getInputStream();
while (input.isReady())
{
int read = input.read();
if (read < 0)
break;
}
if (input.isFinished())
asyncContext.complete();
}
});
}
});
Session session = newClient(new Session.Listener.Adapter());
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame = new HeadersFrame(metaData, null, false);
final CountDownLatch latch = new CountDownLatch(1);
FuturePromise<Stream> promise = new FuturePromise<>();
session.newStream(frame, promise, new Stream.Listener.Adapter()
{
@Override
public void onHeaders(Stream stream, HeadersFrame frame)
{
if (frame.isEndStream())
latch.countDown();
}
});
Stream stream = promise.get(5, TimeUnit.SECONDS);
// Wait until service() returns.
Thread.sleep(1000);
stream.data(new DataFrame(stream.getId(), ByteBuffer.allocate(1), false), Callback.NOOP);
// Wait until onDataAvailable() returns.
Thread.sleep(1000);
stream.data(new DataFrame(stream.getId(), ByteBuffer.allocate(1), true), Callback.NOOP);
assertTrue(latch.await(5, TimeUnit.SECONDS));
// Make sure onDataAvailable() has been called twice
assertEquals(2, count.get());
}
@Test
public void testDirectAsyncWriteThenComplete() throws Exception
{
// Use a small flow control window to stall the server writes.
int clientWindow = 16;
start(new EmptyHttpServlet()
{
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
AsyncContext asyncContext = request.startAsync();
HttpOutput output = (HttpOutput)response.getOutputStream();
output.setWriteListener(new WriteListener()
{
@Override
public void onWritePossible() throws IOException
{
// The write is too large and will stall.
output.write(ByteBuffer.wrap(new byte[2 * clientWindow]));
// We can now call complete() now before checking for isReady().
// This will asynchronously complete when the write is finished.
asyncContext.complete();
}
@Override
public void onError(Throwable t)
{
}
});
}
});
Session session = newClient(new Session.Listener.Adapter()
{
@Override
public Map<Integer, Integer> onPreface(Session session)
{
Map<Integer, Integer> settings = new HashMap<>();
settings.put(SettingsFrame.INITIAL_WINDOW_SIZE, clientWindow);
return settings;
}
});
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame = new HeadersFrame(metaData, null, true);
CountDownLatch latch = new CountDownLatch(1);
FuturePromise<Stream> promise = new FuturePromise<>();
session.newStream(frame, promise, new Stream.Listener.Adapter()
{
@Override
public void onClosed(Stream stream)
{
latch.countDown();
}
});
assertTrue(latch.await(5, TimeUnit.SECONDS));
}
private static void sleep(long ms) throws InterruptedIOException
{
try
{
Thread.sleep(ms);
}
catch (InterruptedException x)
{
throw new InterruptedIOException();
}
}
private static class EmptyReadListener implements ReadListener
{
@Override
public void onDataAvailable() throws IOException
{
}
@Override
public void onAllDataRead() throws IOException
{
}
@Override
public void onError(Throwable t)
{
}
}
}