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
|
//
// ========================================================================
// Copyright (c) 1995-2016 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.client;
import java.nio.ByteBuffer;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.jetty.client.api.Connection;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.client.api.Response;
import org.eclipse.jetty.client.api.Result;
import org.eclipse.jetty.client.http.HttpClientTransportOverHTTP;
import org.eclipse.jetty.client.http.HttpConnectionOverHTTP;
import org.eclipse.jetty.client.util.DeferredContentProvider;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.Promise;
import org.eclipse.jetty.util.thread.QueuedThreadPool;
import org.junit.After;
import org.junit.Assert;
import org.junit.Test;
public class HttpClientFailureTest
{
private Server server;
private ServerConnector connector;
private HttpClient client;
private void startServer(Handler handler) throws Exception
{
QueuedThreadPool serverThreads = new QueuedThreadPool();
serverThreads.setName("server");
server = new Server(serverThreads);
connector = new ServerConnector(server);
server.addConnector(connector);
server.setHandler(handler);
server.start();
}
@After
public void dispose() throws Exception
{
if (server != null)
server.stop();
if (client != null)
client.stop();
}
@Test
public void testFailureBeforeRequestCommit() throws Exception
{
startServer(new EmptyServerHandler());
final AtomicReference<HttpConnectionOverHTTP> connectionRef = new AtomicReference<>();
client = new HttpClient(new HttpClientTransportOverHTTP()
{
@Override
protected HttpConnectionOverHTTP newHttpConnection(EndPoint endPoint, HttpDestination destination, Promise<Connection> promise)
{
HttpConnectionOverHTTP connection = super.newHttpConnection(endPoint, destination, promise);
connectionRef.set(connection);
return connection;
}
}, null);
client.start();
try
{
client.newRequest("localhost", connector.getLocalPort())
.onRequestHeaders(new Request.HeadersListener()
{
@Override
public void onHeaders(Request request)
{
connectionRef.get().getEndPoint().close();
}
})
.timeout(5, TimeUnit.SECONDS)
.send();
Assert.fail();
}
catch (ExecutionException x)
{
// Expected.
}
DuplexConnectionPool connectionPool = connectionRef.get().getHttpDestination().getConnectionPool();
Assert.assertEquals(0, connectionPool.getConnectionCount());
Assert.assertEquals(0, connectionPool.getActiveConnections().size());
Assert.assertEquals(0, connectionPool.getIdleConnections().size());
}
@Test
public void testFailureAfterRequestCommit() throws Exception
{
startServer(new EmptyServerHandler());
final AtomicReference<HttpConnectionOverHTTP> connectionRef = new AtomicReference<>();
client = new HttpClient(new HttpClientTransportOverHTTP()
{
@Override
protected HttpConnectionOverHTTP newHttpConnection(EndPoint endPoint, HttpDestination destination, Promise<Connection> promise)
{
HttpConnectionOverHTTP connection = super.newHttpConnection(endPoint, destination, promise);
connectionRef.set(connection);
return connection;
}
}, null);
client.start();
final CountDownLatch commitLatch = new CountDownLatch(1);
final CountDownLatch completeLatch = new CountDownLatch(1);
DeferredContentProvider content = new DeferredContentProvider();
client.newRequest("localhost", connector.getLocalPort())
.onRequestCommit(new Request.CommitListener()
{
@Override
public void onCommit(Request request)
{
connectionRef.get().getEndPoint().close();
commitLatch.countDown();
}
})
.content(content)
.idleTimeout(2, TimeUnit.SECONDS)
.send(new Response.CompleteListener()
{
@Override
public void onComplete(Result result)
{
if (result.isFailed())
completeLatch.countDown();
}
});
Assert.assertTrue(commitLatch.await(5, TimeUnit.SECONDS));
final CountDownLatch contentLatch = new CountDownLatch(1);
content.offer(ByteBuffer.allocate(1024), new Callback()
{
@Override
public void failed(Throwable x)
{
contentLatch.countDown();
}
});
Assert.assertTrue(commitLatch.await(5, TimeUnit.SECONDS));
Assert.assertTrue(contentLatch.await(5, TimeUnit.SECONDS));
Assert.assertTrue(completeLatch.await(5, TimeUnit.SECONDS));
DuplexConnectionPool connectionPool = connectionRef.get().getHttpDestination().getConnectionPool();
Assert.assertEquals(0, connectionPool.getConnectionCount());
Assert.assertEquals(0, connectionPool.getActiveConnections().size());
Assert.assertEquals(0, connectionPool.getIdleConnections().size());
}
/*
@Test
public void test_ExchangeIsComplete_WhenRequestFailsMidway_WithResponse() throws Exception
{
start(new AbstractHandler()
{
@Override
public void handle(String target, org.eclipse.jetty.server.Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
// Echo back
IO.copy(request.getInputStream(), response.getOutputStream());
}
});
final CountDownLatch latch = new CountDownLatch(1);
client.newRequest("localhost", connector.getLocalPort())
.scheme(scheme)
// The second ByteBuffer set to null will throw an exception
.content(new ContentProvider()
{
@Override
public long getLength()
{
return -1;
}
@Override
public Iterator<ByteBuffer> iterator()
{
return new Iterator<ByteBuffer>()
{
@Override
public boolean hasNext()
{
return true;
}
@Override
public ByteBuffer next()
{
throw new NoSuchElementException("explicitly_thrown_by_test");
}
@Override
public void remove()
{
throw new UnsupportedOperationException();
}
};
}
})
.send(new Response.Listener.Adapter()
{
@Override
public void onComplete(Result result)
{
latch.countDown();
}
});
Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
}
@Test
public void test_ExchangeIsComplete_WhenRequestFails_WithNoResponse() throws Exception
{
start(new EmptyServerHandler());
final CountDownLatch latch = new CountDownLatch(1);
final String host = "localhost";
final int port = connector.getLocalPort();
client.newRequest(host, port)
.scheme(scheme)
.onRequestBegin(new Request.BeginListener()
{
@Override
public void onBegin(Request request)
{
HttpDestinationOverHTTP destination = (HttpDestinationOverHTTP)client.getDestination(scheme, host, port);
destination.getConnectionPool().getActiveConnections().peek().close();
}
})
.send(new Response.Listener.Adapter()
{
@Override
public void onComplete(Result result)
{
latch.countDown();
}
});
Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
}
*/
}
|
