Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
WorkerThreadImpl |
|
| 0.0;0 |
1 | /* | |
2 | * | |
3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
4 | * | |
5 | * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved. | |
6 | * | |
7 | * The contents of this file are subject to the terms of either the GNU | |
8 | * General Public License Version 2 only ("GPL") or the Common Development | |
9 | * and Distribution License("CDDL") (collectively, the "License"). You | |
10 | * may not use this file except in compliance with the License. You can obtain | |
11 | * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html | |
12 | * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific | |
13 | * language governing permissions and limitations under the License. | |
14 | * | |
15 | * When distributing the software, include this License Header Notice in each | |
16 | * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt. | |
17 | * Sun designates this particular file as subject to the "Classpath" exception | |
18 | * as provided by Sun in the GPL Version 2 section of the License file that | |
19 | * accompanied this code. If applicable, add the following below the License | |
20 | * Header, with the fields enclosed by brackets [] replaced by your own | |
21 | * identifying information: "Portions Copyrighted [year] | |
22 | * [name of copyright owner]" | |
23 | * | |
24 | * Contributor(s): | |
25 | * | |
26 | * If you wish your version of this file to be governed by only the CDDL or | |
27 | * only the GPL Version 2, indicate your decision by adding "[Contributor] | |
28 | * elects to include this software in this distribution under the [CDDL or GPL | |
29 | * Version 2] license." If you don't indicate a single choice of license, a | |
30 | * recipient has the option to distribute your version of this file under | |
31 | * either the CDDL, the GPL Version 2 or to extend the choice of license to | |
32 | * its licensees as provided above. However, if you add GPL Version 2 code | |
33 | * and therefore, elected the GPL Version 2 license, then the option applies | |
34 | * only if the new code is made subject to such option by the copyright | |
35 | * holder. | |
36 | * | |
37 | */ | |
38 | package com.sun.grizzly.util; | |
39 | ||
40 | import com.sun.grizzly.Controller; | |
41 | import com.sun.grizzly.Pipeline; | |
42 | import java.util.concurrent.Callable; | |
43 | import java.util.logging.Level; | |
44 | import com.sun.grizzly.util.ByteBufferFactory.ByteBufferType; | |
45 | import com.sun.grizzly.util.ThreadAttachment.Mode; | |
46 | ||
47 | /** | |
48 | * Simple worker thread used for processing HTTP requests. All threads are | |
49 | * synchronized using a {@link Pipeline} object | |
50 | * | |
51 | * @author Jean-Francois Arcand | |
52 | */ | |
53 | public class WorkerThreadImpl extends WorkerThread { | |
54 | ||
55 | private static final int DEFAULT_BYTE_BUFFER_SIZE = 8192; | |
56 | ||
57 | /** | |
58 | * What will be run. | |
59 | */ | |
60 | protected Runnable target; | |
61 | ||
62 | ||
63 | /** | |
64 | * The {@link Pipeline} on which this thread synchronize. | |
65 | */ | |
66 | protected Pipeline<Callable> pipeline; | |
67 | ||
68 | ||
69 | /** | |
70 | * Looing variable. | |
71 | */ | |
72 | 353 | protected volatile boolean execute = true; |
73 | ||
74 | ||
75 | /** | |
76 | * The <code>ThreadGroup</code> used. | |
77 | */ | |
78 | 1 | protected final static ThreadGroup threadGroup = new ThreadGroup("Grizzly"); |
79 | ||
80 | ||
81 | /** | |
82 | * The state/attributes on this WorkerThread. | |
83 | */ | |
84 | private ThreadAttachment threadAttachment; | |
85 | ||
86 | ||
87 | /** | |
88 | * The ByteBufferType used when creating the ByteBuffer attached to this object. | |
89 | */ | |
90 | 353 | private ByteBufferType byteBufferType = ByteBufferType.HEAP_VIEW; |
91 | ||
92 | ||
93 | /** | |
94 | * The size of the ByteBuffer attached to this object. | |
95 | */ | |
96 | private int initialByteBufferSize; | |
97 | ||
98 | ||
99 | /** | |
100 | * Create a Thread that will synchronizes/block on | |
101 | * {@link Pipeline} instance. | |
102 | * @param threadGroup <code>ThreadGroup</code> | |
103 | * @param runnable <code>Runnable</code> | |
104 | */ | |
105 | public WorkerThreadImpl(ThreadGroup threadGroup, Runnable runnable){ | |
106 | 0 | this(threadGroup, runnable, DEFAULT_BYTE_BUFFER_SIZE); |
107 | 0 | } |
108 | ||
109 | /** | |
110 | * Create a Thread that will synchronizes/block on | |
111 | * {@link Pipeline} instance. | |
112 | * @param threadGroup <code>ThreadGroup</code> | |
113 | * @param runnable <code>Runnable</code> | |
114 | * @param initialByteBufferSize initial {@link ByteBuffer} size | |
115 | */ | |
116 | public WorkerThreadImpl(ThreadGroup threadGroup, Runnable runnable, | |
117 | int initialByteBufferSize){ | |
118 | 0 | super(threadGroup, runnable); |
119 | 0 | setDaemon(true); |
120 | 0 | target = runnable; |
121 | 0 | this.initialByteBufferSize = initialByteBufferSize; |
122 | 0 | } |
123 | ||
124 | /** | |
125 | * Create a Thread that will synchronizes/block on | |
126 | * {@link Pipeline} instance. | |
127 | * @param pipeline {@link Pipeline} | |
128 | * @param name <code>String</code> | |
129 | */ | |
130 | public WorkerThreadImpl(Pipeline<Callable> pipeline, String name){ | |
131 | 0 | this(pipeline, name, DEFAULT_BYTE_BUFFER_SIZE); |
132 | 0 | } |
133 | ||
134 | /** | |
135 | * Create a Thread that will synchronizes/block on | |
136 | * {@link Pipeline} instance. | |
137 | * @param pipeline {@link Pipeline} | |
138 | * @param name <code>String</code> | |
139 | * @param initialByteBufferSize initial {@link ByteBuffer} size | |
140 | */ | |
141 | public WorkerThreadImpl(Pipeline<Callable> pipeline, String name, | |
142 | int initialByteBufferSize){ | |
143 | 353 | super(threadGroup, name); |
144 | 353 | this.pipeline = pipeline; |
145 | 353 | setDaemon(true); |
146 | 353 | this.initialByteBufferSize = initialByteBufferSize; |
147 | 353 | } |
148 | ||
149 | /** | |
150 | * Execute a {@link Task}. | |
151 | */ | |
152 | @Override | |
153 | public void run(){ | |
154 | 353 | if (byteBuffer == null){ |
155 | 353 | byteBuffer = ByteBufferFactory.allocate(byteBufferType, |
156 | initialByteBufferSize); | |
157 | } | |
158 | ||
159 | 353 | if (target != null){ |
160 | 0 | target.run(); |
161 | 0 | return; |
162 | } | |
163 | ||
164 | 389238 | while (execute) { |
165 | try{ | |
166 | // Wait for a Task to be added to the pipeline. | |
167 | 388885 | Callable t = pipeline.waitForIoTask(); |
168 | 388885 | if (t != null){ |
169 | 156189 | t.call(); |
170 | 156189 | t = null; |
171 | } | |
172 | 0 | } catch (Throwable t) { |
173 | 0 | if (execute) { |
174 | 0 | Controller.logger().log(Level.SEVERE, |
175 | "WorkerThreadImpl unexpected exception: ",t); | |
176 | } else { | |
177 | 0 | Controller.logger().log(Level.FINE, |
178 | "WorkerThreadImpl unexpected exception, when WorderThread supposed to be closed: ",t); | |
179 | } | |
180 | } finally { | |
181 | 388885 | reset(); |
182 | 388882 | } |
183 | } | |
184 | 352 | } |
185 | ||
186 | ||
187 | /** | |
188 | * Stop this thread. If this Thread is performing atask, the task will be | |
189 | * completed. | |
190 | */ | |
191 | public void terminate(){ | |
192 | 353 | execute = false; |
193 | 353 | } |
194 | ||
195 | public ThreadAttachment updateAttachment(int mode) { | |
196 | 161777 | ThreadAttachment currentAttachment = getAttachment(); |
197 | 161777 | currentAttachment.reset(); |
198 | ||
199 | 161777 | if ((mode & Mode.BYTE_BUFFER) != 0) { |
200 | 12 | currentAttachment.setByteBuffer(byteBuffer); |
201 | } | |
202 | ||
203 | 161777 | if ((mode & Mode.SSL_ENGINE) != 0) { |
204 | 161774 | currentAttachment.setSSLEngine(sslEngine); |
205 | } | |
206 | ||
207 | 161777 | if ((mode & Mode.INPUT_BB) != 0) { |
208 | 161658 | currentAttachment.setInputBB(inputBB); |
209 | } | |
210 | ||
211 | 161777 | if ((mode & Mode.OUTPUT_BB) != 0) { |
212 | 582 | currentAttachment.setOutputBB(outputBB); |
213 | } | |
214 | ||
215 | 161777 | currentAttachment.setMode(mode); |
216 | ||
217 | 161777 | return currentAttachment; |
218 | } | |
219 | ||
220 | public ThreadAttachment getAttachment() { | |
221 | 269563 | if (threadAttachment == null) { |
222 | 124 | threadAttachment = new ThreadAttachment(); |
223 | } | |
224 | ||
225 | 269563 | return threadAttachment; |
226 | } | |
227 | ||
228 | public ThreadAttachment detach() { | |
229 | 53894 | ThreadAttachment currentAttachment = getAttachment(); |
230 | 53894 | int mode = currentAttachment.getMode(); |
231 | 53894 | updateAttachment(mode); |
232 | ||
233 | // Re-create a new ByteBuffer | |
234 | 53894 | if ((mode & Mode.BYTE_BUFFER) != 0) { |
235 | 11 | byteBuffer = ByteBufferFactory.allocate(byteBufferType, |
236 | initialByteBufferSize); | |
237 | } | |
238 | ||
239 | 53894 | if ((mode & Mode.SSL_ENGINE) != 0) { |
240 | 53892 | sslEngine = null; |
241 | } | |
242 | ||
243 | 53894 | if ((mode & Mode.INPUT_BB) != 0) { |
244 | 53892 | inputBB = null; |
245 | } | |
246 | ||
247 | 53894 | if ((mode & Mode.OUTPUT_BB) != 0) { |
248 | 200 | outputBB = null; |
249 | } | |
250 | ||
251 | // Switch to the new ThreadAttachment. | |
252 | 53894 | this.threadAttachment = null; |
253 | ||
254 | 53894 | currentAttachment.deassociate(); |
255 | 53894 | return currentAttachment; |
256 | } | |
257 | ||
258 | ||
259 | public void attach(ThreadAttachment threadAttachment) { | |
260 | 53884 | threadAttachment.associate(); |
261 | 53884 | int mode = threadAttachment.getMode(); |
262 | ||
263 | 53884 | if ((mode & Mode.BYTE_BUFFER) != 0) { |
264 | 4 | byteBuffer = threadAttachment.getByteBuffer(); |
265 | } | |
266 | ||
267 | 53884 | if ((mode & Mode.SSL_ENGINE) != 0) { |
268 | 53881 | sslEngine = threadAttachment.getSSLEngine(); |
269 | } | |
270 | ||
271 | 53884 | if ((mode & Mode.INPUT_BB) != 0) { |
272 | 53881 | inputBB = threadAttachment.getInputBB(); |
273 | } | |
274 | ||
275 | 53884 | if ((mode & Mode.OUTPUT_BB) != 0) { |
276 | 194 | outputBB = threadAttachment.getOutputBB(); |
277 | } | |
278 | ||
279 | 53884 | this.threadAttachment = threadAttachment; |
280 | 53884 | } |
281 | ||
282 | ||
283 | /** | |
284 | * The <code>ByteBufferType</code> used to create the {@link ByteBuffer} | |
285 | * associated with this object. | |
286 | * @return The <code>ByteBufferType</code> used to create the {@link ByteBuffer} | |
287 | * associated with this object. | |
288 | */ | |
289 | public ByteBufferType getByteBufferType() { | |
290 | 0 | return byteBufferType; |
291 | } | |
292 | ||
293 | ||
294 | /** | |
295 | * Set the <code>ByteBufferType</code> to use when creating the | |
296 | * {@link ByteBuffer} associated with this object. | |
297 | * @param byteBufferType The ByteBuffer type. | |
298 | */ | |
299 | public void setByteBufferType(ByteBufferType byteBufferType) { | |
300 | 353 | this.byteBufferType = byteBufferType; |
301 | 353 | } |
302 | ||
303 | @Override | |
304 | protected void reset() { | |
305 | 388885 | if (threadAttachment != null) { |
306 | /** | |
307 | * ThreadAttachment was created during prev. processing and wasn't | |
308 | * detached. It could happen due to some error - we need to release | |
309 | * the ThreadAttachment association with the current thread | |
310 | */ | |
311 | 114 | threadAttachment.deassociate(); |
312 | } | |
313 | ||
314 | 388885 | threadAttachment = null; |
315 | 388880 | super.reset(); |
316 | 388885 | } |
317 | } | |
318 |