/
JettyAnnotatedEventDriver.java
310 lines (274 loc) · 9.19 KB
/
JettyAnnotatedEventDriver.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
//
// ========================================================================
// Copyright (c) 1995-2020 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// 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.websocket.common.events;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.ByteBuffer;
import java.util.Objects;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.websocket.api.BatchMode;
import org.eclipse.jetty.websocket.api.WebSocketPolicy;
import org.eclipse.jetty.websocket.api.annotations.WebSocket;
import org.eclipse.jetty.websocket.api.extensions.Frame;
import org.eclipse.jetty.websocket.common.CloseInfo;
import org.eclipse.jetty.websocket.common.message.MessageInputStream;
import org.eclipse.jetty.websocket.common.message.MessageReader;
import org.eclipse.jetty.websocket.common.message.NullMessage;
import org.eclipse.jetty.websocket.common.message.SimpleBinaryMessage;
import org.eclipse.jetty.websocket.common.message.SimpleTextMessage;
import org.eclipse.jetty.websocket.common.util.TextUtil;
/**
* Handler for Annotated User WebSocket objects.
*/
public class JettyAnnotatedEventDriver extends AbstractEventDriver
{
private static final Logger LOG = Log.getLogger(JettyAnnotatedEventDriver.class);
private final JettyAnnotatedMetadata events;
private boolean hasCloseBeenCalled = false;
private final BatchMode batchMode;
public JettyAnnotatedEventDriver(WebSocketPolicy policy, Object websocket, JettyAnnotatedMetadata events)
{
super(policy, websocket);
this.events = Objects.requireNonNull(events, "JettyAnnotatedMetadata may not be null");
WebSocket anno = websocket.getClass().getAnnotation(WebSocket.class);
// Setup the policy
if (anno.maxTextMessageSize() > 0)
{
this.policy.setMaxTextMessageSize(anno.maxTextMessageSize());
}
if (anno.maxBinaryMessageSize() > 0)
{
this.policy.setMaxBinaryMessageSize(anno.maxBinaryMessageSize());
}
if (anno.inputBufferSize() > 0)
{
this.policy.setInputBufferSize(anno.inputBufferSize());
}
if (anno.maxIdleTime() > 0)
{
this.policy.setIdleTimeout(anno.maxIdleTime());
}
this.batchMode = anno.batchMode();
if (LOG.isDebugEnabled())
{
LOG.debug("ctor / object={}, policy={}, batchMode={}, events={}", websocket, policy, batchMode, events);
}
}
@Override
public BatchMode getBatchMode()
{
return this.batchMode;
}
@Override
public void onBinaryFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (LOG.isDebugEnabled())
{
LOG.debug("onBinaryFrame({}, {}) - events.onBinary={}, activeMessage={}",
BufferUtil.toDetailString(buffer), fin, events.onBinary, activeMessage);
}
if (activeMessage == null)
{
if (events.onBinary == null)
{
// not interested in binary events
activeMessage = NullMessage.INSTANCE;
}
else if (events.onBinary.isStreaming())
{
MessageInputStream inputStream = new MessageInputStream(session);
activeMessage = inputStream;
dispatch(() ->
{
try
{
events.onBinary.call(websocket, session, inputStream);
}
catch (Throwable t)
{
session.close(t);
return;
}
inputStream.handlerComplete();
});
}
else
{
activeMessage = new SimpleBinaryMessage(this);
}
}
appendMessage(buffer, fin);
}
@Override
public void onBinaryMessage(byte[] data)
{
if (LOG.isDebugEnabled())
{
LOG.debug("onBinaryMessage([{}]) - events.onBinary={}", data.length, events.onBinary);
}
if (events.onBinary != null)
{
events.onBinary.call(websocket, session, data, 0, data.length);
}
}
@Override
public void onClose(CloseInfo close)
{
if (hasCloseBeenCalled)
{
// avoid duplicate close events (possible when using harsh Session.disconnect())
return;
}
hasCloseBeenCalled = true;
if (LOG.isDebugEnabled())
{
LOG.debug("onClose({}) - events.onClose={}", close, events.onClose);
}
if (events.onClose != null)
{
events.onClose.call(websocket, session, close.getStatusCode(), close.getReason());
}
}
@Override
public void onConnect()
{
if (LOG.isDebugEnabled())
{
LOG.debug("onConnect() - events.onConnect={}", events.onConnect);
}
if (events.onConnect != null)
{
events.onConnect.call(websocket, session);
}
}
@Override
public void onError(Throwable cause)
{
if (LOG.isDebugEnabled())
{
LOG.debug("onError({}) - events.onError={}", cause.getClass().getName(), events.onError);
}
if (events.onError != null)
{
events.onError.call(websocket, session, cause);
}
else
{
LOG.warn("Unable to report throwable to websocket (no @OnWebSocketError handler declared): " + websocket.getClass().getName(), cause);
}
}
@Override
public void onFrame(Frame frame)
{
if (LOG.isDebugEnabled())
{
LOG.debug("onFrame({}) - events.onFrame={}", frame, events.onFrame);
}
if (events.onFrame != null)
{
events.onFrame.call(websocket, session, frame);
}
}
@Override
public void onInputStream(InputStream stream)
{
Objects.requireNonNull(stream, "InputStream may not be null");
if (LOG.isDebugEnabled())
{
LOG.debug("onInputStream({}) - events.onBinary={}", stream.getClass().getName(), events.onBinary);
}
if (events.onBinary != null)
{
events.onBinary.call(websocket, session, stream);
}
}
@Override
public void onReader(Reader reader)
{
Objects.requireNonNull(reader, "Reader may not be null");
if (LOG.isDebugEnabled())
{
LOG.debug("onReader({}) - events.onText={}", reader.getClass().getName(), events.onText);
}
if (events.onText != null)
{
events.onText.call(websocket, session, reader);
}
}
@Override
public void onTextFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (LOG.isDebugEnabled())
{
LOG.debug("onTextFrame({}, {}) - events.onText={}, activeMessage={}",
BufferUtil.toDetailString(buffer), fin, events.onText, activeMessage);
}
if (activeMessage == null)
{
if (events.onText == null)
{
// not interested in text events
activeMessage = NullMessage.INSTANCE;
}
else if (events.onText.isStreaming())
{
MessageReader reader = new MessageReader(session);
activeMessage = reader;
dispatch(() ->
{
try
{
events.onText.call(websocket, session, reader);
}
catch (Throwable t)
{
session.close(t);
return;
}
reader.handlerComplete();
});
}
else
{
activeMessage = new SimpleTextMessage(this);
}
}
appendMessage(buffer, fin);
}
@Override
public void onTextMessage(String message)
{
if (LOG.isDebugEnabled())
{
LOG.debug("onTextMessage([{}] \"{}\") - events.onText={}",
message.length(), TextUtil.maxStringLength(60, message), events.onText);
}
if (events.onText != null)
{
events.onText.call(websocket, session, message);
}
}
@Override
public String toString()
{
return String.format("%s[%s]", this.getClass().getSimpleName(), websocket);
}
}