11 |
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import java.util.concurrent.*; |
12 |
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import java.math.BigInteger; |
13 |
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|
14 |
< |
public class ExecutorsTest extends TestCase{ |
15 |
< |
|
14 |
> |
public class ExecutorsTest extends JSR166TestCase{ |
15 |
> |
|
16 |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
18 |
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} |
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|
20 |
– |
|
19 |
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public static Test suite() { |
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return new TestSuite(ExecutorsTest.class); |
21 |
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} |
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|
23 |
< |
private static long SHORT_DELAY_MS = 100; |
24 |
< |
private static long MEDIUM_DELAY_MS = 1000; |
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< |
private static long LONG_DELAY_MS = 10000; |
26 |
< |
|
27 |
< |
class SleepRun implements Runnable { |
28 |
< |
public void run() { |
29 |
< |
try{ |
30 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
31 |
< |
} catch(InterruptedException e){ |
32 |
< |
fail("unexpected exception"); |
33 |
< |
} |
23 |
> |
private static final String TEST_STRING = "a test string"; |
24 |
> |
|
25 |
> |
private static class MyTask implements Runnable { |
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> |
public void run() { completed = true; } |
27 |
> |
public boolean isCompleted() { return completed; } |
28 |
> |
public void reset() { completed = false; } |
29 |
> |
private boolean completed = false; |
30 |
> |
} |
31 |
> |
|
32 |
> |
private static class StringTask implements Callable<String> { |
33 |
> |
public String call() { return TEST_STRING; } |
34 |
> |
} |
35 |
> |
|
36 |
> |
static class DirectExecutor implements Executor { |
37 |
> |
public void execute(Runnable r) { |
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> |
r.run(); |
39 |
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} |
40 |
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} |
38 |
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|
41 |
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|
42 |
< |
class SleepCall implements Callable { |
43 |
< |
public Object call(){ |
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< |
try{ |
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< |
Thread.sleep(MEDIUM_DELAY_MS); |
46 |
< |
}catch(InterruptedException e){ |
47 |
< |
fail("unexpected exception"); |
42 |
> |
static class TimedCallable<T> implements Callable<T> { |
43 |
> |
private final Executor exec; |
44 |
> |
private final Callable<T> func; |
45 |
> |
private final long msecs; |
46 |
> |
|
47 |
> |
TimedCallable(Executor exec, Callable<T> func, long msecs) { |
48 |
> |
this.exec = exec; |
49 |
> |
this.func = func; |
50 |
> |
this.msecs = msecs; |
51 |
> |
} |
52 |
> |
|
53 |
> |
public T call() throws Exception { |
54 |
> |
Future<T> ftask = Executors.execute(exec, func); |
55 |
> |
try { |
56 |
> |
return ftask.get(msecs, TimeUnit.MILLISECONDS); |
57 |
> |
} finally { |
58 |
> |
ftask.cancel(true); |
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} |
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– |
return Boolean.TRUE; |
60 |
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} |
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} |
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|
63 |
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|
64 |
+ |
private static class Fib implements Callable<BigInteger> { |
65 |
+ |
private final BigInteger n; |
66 |
+ |
Fib(long n) { |
67 |
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if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
68 |
+ |
this.n = BigInteger.valueOf(n); |
69 |
+ |
} |
70 |
+ |
public BigInteger call() { |
71 |
+ |
BigInteger f1 = BigInteger.ONE; |
72 |
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BigInteger f2 = f1; |
73 |
+ |
for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
74 |
+ |
BigInteger t = f1.add(f2); |
75 |
+ |
f1 = f2; |
76 |
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f2 = t; |
77 |
+ |
} |
78 |
+ |
return f1; |
79 |
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} |
80 |
+ |
}; |
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+ |
|
82 |
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|
83 |
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|
84 |
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/** |
85 |
< |
* Test to verify execute(Executor, Runnable) will throw |
85 |
> |
* execute(Executor, Runnable) will throw |
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* RejectedExecutionException Attempting to execute a runnable on |
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* a full ThreadPool will cause such an exception here, up to 5 |
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* runnables are attempted on a pool capable on handling one |
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* until it throws an exception |
90 |
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*/ |
91 |
< |
public void testExecute1(){ |
92 |
< |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
93 |
< |
try{ |
91 |
> |
public void testExecute1() { |
92 |
> |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
93 |
> |
try { |
94 |
|
|
95 |
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for(int i = 0; i < 5; ++i){ |
96 |
< |
Executors.execute(p, new SleepRun(), Boolean.TRUE); |
96 |
> |
Executors.execute(p, new MediumRunnable(), Boolean.TRUE); |
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} |
98 |
< |
fail("should throw"); |
98 |
> |
shouldThrow(); |
99 |
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} catch(RejectedExecutionException success){} |
100 |
< |
p.shutdownNow(); |
100 |
> |
joinPool(p); |
101 |
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} |
102 |
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|
103 |
|
/** |
104 |
< |
* Test to verify execute(Executor, Callable) will throw |
104 |
> |
* execute(Executor, Callable) will throw |
105 |
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* RejectedExecutionException Attempting to execute a callable on |
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* a full ThreadPool will cause such an exception here, up to 5 |
107 |
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* runnables are attempted on a pool capable on handling one |
108 |
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* until it throws an exception |
109 |
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*/ |
110 |
< |
public void testExecute2(){ |
111 |
< |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
112 |
< |
try{ |
110 |
> |
public void testExecute2() { |
111 |
> |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
112 |
> |
try { |
113 |
|
for(int i = 0; i < 5; ++i) { |
114 |
< |
Executors.execute(p, new SleepCall()); |
114 |
> |
Executors.execute(p, new SmallCallable()); |
115 |
|
} |
116 |
< |
fail("should throw"); |
117 |
< |
}catch(RejectedExecutionException e){} |
118 |
< |
p.shutdownNow(); |
116 |
> |
shouldThrow(); |
117 |
> |
} catch(RejectedExecutionException e){} |
118 |
> |
joinPool(p); |
119 |
|
} |
120 |
|
|
121 |
|
|
122 |
|
/** |
123 |
< |
* Test to verify invoke(Executor, Runnable) throws InterruptedException |
123 |
> |
* invoke(Executor, Runnable) throws InterruptedException |
124 |
|
* A single use of invoke starts that will wait long enough |
125 |
|
* for the invoking thread to be interrupted |
126 |
|
*/ |
127 |
< |
public void testInvoke2(){ |
128 |
< |
final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
127 |
> |
public void testInvoke2() { |
128 |
> |
final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
129 |
|
Thread t = new Thread(new Runnable() { |
130 |
< |
public void run(){ |
131 |
< |
try{ |
132 |
< |
Executors.invoke(p,new Runnable(){ |
133 |
< |
public void run(){ |
134 |
< |
try{ |
130 |
> |
public void run() { |
131 |
> |
try { |
132 |
> |
Executors.invoke(p,new Runnable() { |
133 |
> |
public void run() { |
134 |
> |
try { |
135 |
|
Thread.sleep(MEDIUM_DELAY_MS); |
136 |
< |
fail("should throw"); |
137 |
< |
}catch(InterruptedException e){ |
136 |
> |
shouldThrow(); |
137 |
> |
} catch(InterruptedException e){ |
138 |
|
} |
139 |
|
} |
140 |
|
}); |
141 |
|
} catch(InterruptedException success){ |
142 |
|
} catch(Exception e) { |
143 |
< |
fail("unexpected exception"); |
143 |
> |
unexpectedException(); |
144 |
|
} |
145 |
|
|
146 |
|
} |
147 |
|
}); |
148 |
< |
try{ |
148 |
> |
try { |
149 |
|
t.start(); |
150 |
|
Thread.sleep(SHORT_DELAY_MS); |
151 |
|
t.interrupt(); |
152 |
< |
}catch(Exception e){ |
153 |
< |
fail("unexpected exception"); |
152 |
> |
} catch(Exception e){ |
153 |
> |
unexpectedException(); |
154 |
|
} |
155 |
< |
p.shutdownNow(); |
155 |
> |
joinPool(p); |
156 |
|
} |
157 |
|
|
158 |
|
/** |
159 |
< |
* Test to verify invoke(Executor, Runnable) will throw |
159 |
> |
* invoke(Executor, Runnable) will throw |
160 |
|
* ExecutionException An ExecutionException occurs when the |
161 |
|
* underlying Runnable throws an exception, here the |
162 |
|
* DivideByZeroException will cause an ExecutionException |
163 |
|
*/ |
164 |
< |
public void testInvoke3(){ |
165 |
< |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
166 |
< |
try{ |
167 |
< |
Runnable r = new Runnable(){ |
168 |
< |
public void run(){ |
164 |
> |
public void testInvoke3() { |
165 |
> |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
166 |
> |
try { |
167 |
> |
Runnable r = new Runnable() { |
168 |
> |
public void run() { |
169 |
|
int i = 5/0; |
170 |
|
} |
171 |
|
}; |
174 |
|
Executors.invoke(p,r); |
175 |
|
} |
176 |
|
|
177 |
< |
fail("should throw"); |
177 |
> |
shouldThrow(); |
178 |
|
} catch(ExecutionException success){ |
179 |
|
} catch(Exception e){ |
180 |
< |
fail("should throw EE"); |
180 |
> |
unexpectedException(); |
181 |
|
} |
182 |
< |
p.shutdownNow(); |
182 |
> |
joinPool(p); |
183 |
|
} |
184 |
|
|
185 |
|
|
186 |
|
|
187 |
|
/** |
188 |
< |
* Test to verify invoke(Executor, Callable) throws |
188 |
> |
* invoke(Executor, Callable) throws |
189 |
|
* InterruptedException A single use of invoke starts that will |
190 |
|
* wait long enough for the invoking thread to be interrupted |
191 |
|
*/ |
192 |
< |
public void testInvoke5(){ |
193 |
< |
final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
192 |
> |
public void testInvoke5() { |
193 |
> |
final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
194 |
|
|
195 |
< |
final Callable c = new Callable(){ |
196 |
< |
public Object call(){ |
197 |
< |
try{ |
198 |
< |
Executors.invoke(p, new SleepCall()); |
199 |
< |
fail("should throw"); |
200 |
< |
}catch(InterruptedException e){} |
195 |
> |
final Callable c = new Callable() { |
196 |
> |
public Object call() { |
197 |
> |
try { |
198 |
> |
Executors.invoke(p, new SmallCallable()); |
199 |
> |
shouldThrow(); |
200 |
> |
} catch(InterruptedException e){} |
201 |
|
catch(RejectedExecutionException e2){} |
202 |
|
catch(ExecutionException e3){} |
203 |
|
return Boolean.TRUE; |
206 |
|
|
207 |
|
|
208 |
|
|
209 |
< |
Thread t = new Thread(new Runnable(){ |
210 |
< |
public void run(){ |
211 |
< |
try{ |
209 |
> |
Thread t = new Thread(new Runnable() { |
210 |
> |
public void run() { |
211 |
> |
try { |
212 |
|
c.call(); |
213 |
< |
}catch(Exception e){} |
213 |
> |
} catch(Exception e){} |
214 |
|
} |
215 |
|
}); |
216 |
< |
try{ |
216 |
> |
try { |
217 |
|
t.start(); |
218 |
|
Thread.sleep(SHORT_DELAY_MS); |
219 |
|
t.interrupt(); |
220 |
|
t.join(); |
221 |
< |
}catch(InterruptedException e){ |
222 |
< |
fail("unexpected exception"); |
221 |
> |
} catch(InterruptedException e){ |
222 |
> |
unexpectedException(); |
223 |
|
} |
224 |
|
|
225 |
< |
p.shutdownNow(); |
225 |
> |
joinPool(p); |
226 |
|
} |
227 |
|
|
228 |
|
/** |
229 |
< |
* Test to verify invoke(Executor, Callable) will throw ExecutionException |
229 |
> |
* invoke(Executor, Callable) will throw ExecutionException |
230 |
|
* An ExecutionException occurs when the underlying Runnable throws |
231 |
|
* an exception, here the DivideByZeroException will cause an ExecutionException |
232 |
|
*/ |
233 |
< |
public void testInvoke6(){ |
234 |
< |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
233 |
> |
public void testInvoke6() { |
234 |
> |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
235 |
|
|
236 |
< |
try{ |
237 |
< |
Callable c = new Callable(){ |
238 |
< |
public Object call(){ |
236 |
> |
try { |
237 |
> |
Callable c = new Callable() { |
238 |
> |
public Object call() { |
239 |
|
int i = 5/0; |
240 |
|
return Boolean.TRUE; |
241 |
|
} |
245 |
|
Executors.invoke(p,c); |
246 |
|
} |
247 |
|
|
248 |
< |
fail("should throw"); |
249 |
< |
}catch(RejectedExecutionException e){} |
248 |
> |
shouldThrow(); |
249 |
> |
} catch(RejectedExecutionException e){} |
250 |
|
catch(InterruptedException e2){} |
251 |
|
catch(ExecutionException e3){} |
252 |
< |
p.shutdownNow(); |
252 |
> |
joinPool(p); |
253 |
|
} |
254 |
|
|
255 |
+ |
/** |
256 |
+ |
* |
257 |
+ |
*/ |
258 |
|
public void testExecuteRunnable () { |
259 |
|
try { |
260 |
|
Executor e = new DirectExecutor(); |
261 |
< |
Task task = new Task(); |
262 |
< |
|
229 |
< |
assertFalse("task should not be complete", task.isCompleted()); |
230 |
< |
|
261 |
> |
MyTask task = new MyTask(); |
262 |
> |
assertFalse(task.isCompleted()); |
263 |
|
Future<String> future = Executors.execute(e, task, TEST_STRING); |
264 |
|
String result = future.get(); |
265 |
< |
|
266 |
< |
assertTrue("task should be complete", task.isCompleted()); |
235 |
< |
assertSame("should return test string", TEST_STRING, result); |
265 |
> |
assertTrue(task.isCompleted()); |
266 |
> |
assertSame(TEST_STRING, result); |
267 |
|
} |
268 |
|
catch (ExecutionException ex) { |
269 |
< |
fail("Unexpected exception"); |
269 |
> |
unexpectedException(); |
270 |
|
} |
271 |
|
catch (InterruptedException ex) { |
272 |
< |
fail("Unexpected exception"); |
272 |
> |
unexpectedException(); |
273 |
|
} |
274 |
|
} |
275 |
|
|
276 |
+ |
/** |
277 |
+ |
* |
278 |
+ |
*/ |
279 |
|
public void testInvokeRunnable () { |
280 |
|
try { |
281 |
|
Executor e = new DirectExecutor(); |
282 |
< |
Task task = new Task(); |
283 |
< |
|
250 |
< |
assertFalse("task should not be complete", task.isCompleted()); |
251 |
< |
|
282 |
> |
MyTask task = new MyTask(); |
283 |
> |
assertFalse(task.isCompleted()); |
284 |
|
Executors.invoke(e, task); |
285 |
< |
|
254 |
< |
assertTrue("task should be complete", task.isCompleted()); |
285 |
> |
assertTrue(task.isCompleted()); |
286 |
|
} |
287 |
|
catch (ExecutionException ex) { |
288 |
< |
fail("Unexpected exception"); |
288 |
> |
unexpectedException(); |
289 |
|
} |
290 |
|
catch (InterruptedException ex) { |
291 |
< |
fail("Unexpected exception"); |
291 |
> |
unexpectedException(); |
292 |
|
} |
293 |
|
} |
294 |
|
|
295 |
+ |
/** |
296 |
+ |
* |
297 |
+ |
*/ |
298 |
|
public void testExecuteCallable () { |
299 |
|
try { |
300 |
|
Executor e = new DirectExecutor(); |
301 |
|
Future<String> future = Executors.execute(e, new StringTask()); |
302 |
|
String result = future.get(); |
303 |
< |
|
270 |
< |
assertSame("should return test string", TEST_STRING, result); |
303 |
> |
assertSame(TEST_STRING, result); |
304 |
|
} |
305 |
|
catch (ExecutionException ex) { |
306 |
< |
fail("Unexpected exception"); |
306 |
> |
unexpectedException(); |
307 |
|
} |
308 |
|
catch (InterruptedException ex) { |
309 |
< |
fail("Unexpected exception"); |
309 |
> |
unexpectedException(); |
310 |
|
} |
311 |
|
} |
312 |
|
|
313 |
+ |
/** |
314 |
+ |
* |
315 |
+ |
*/ |
316 |
|
public void testInvokeCallable () { |
317 |
|
try { |
318 |
|
Executor e = new DirectExecutor(); |
319 |
|
String result = Executors.invoke(e, new StringTask()); |
320 |
|
|
321 |
< |
assertSame("should return test string", TEST_STRING, result); |
321 |
> |
assertSame(TEST_STRING, result); |
322 |
|
} |
323 |
|
catch (ExecutionException ex) { |
324 |
< |
fail("Unexpected exception" ); |
324 |
> |
unexpectedException(); |
325 |
|
} |
326 |
|
catch (InterruptedException ex) { |
327 |
< |
fail("Unexpected exception"); |
292 |
< |
} |
293 |
< |
} |
294 |
< |
|
295 |
< |
private static final String TEST_STRING = "a test string"; |
296 |
< |
|
297 |
< |
private static class Task implements Runnable { |
298 |
< |
public void run() { completed = true; } |
299 |
< |
public boolean isCompleted() { return completed; } |
300 |
< |
public void reset() { completed = false; } |
301 |
< |
private boolean completed = false; |
302 |
< |
} |
303 |
< |
|
304 |
< |
private static class StringTask implements Callable<String> { |
305 |
< |
public String call() { return TEST_STRING; } |
306 |
< |
} |
307 |
< |
|
308 |
< |
static class DirectExecutor implements Executor { |
309 |
< |
public void execute(Runnable r) { |
310 |
< |
r.run(); |
327 |
> |
unexpectedException(); |
328 |
|
} |
329 |
|
} |
330 |
|
|
331 |
|
/** |
332 |
< |
* Check that timeouts from execute will time out if they compute |
316 |
< |
* too long. |
332 |
> |
* timeouts from execute will time out if they compute too long. |
333 |
|
*/ |
318 |
– |
|
334 |
|
public void testTimedCallable() { |
335 |
|
int N = 10000; |
336 |
|
ExecutorService executor = Executors.newSingleThreadExecutor(); |
356 |
|
return; |
357 |
|
} |
358 |
|
catch (Exception e) { |
359 |
< |
fail("unexpected exception: " + e); |
359 |
> |
unexpectedException(); |
360 |
|
} |
361 |
|
} |
362 |
|
// if by chance we didn't ever time out, total time must be small |
364 |
|
assertTrue(elapsed < N); |
365 |
|
} |
366 |
|
finally { |
367 |
< |
executor.shutdownNow(); |
367 |
> |
joinPool(executor); |
368 |
|
} |
369 |
|
} |
370 |
|
|
371 |
|
|
357 |
– |
static class TimedCallable<T> implements Callable<T> { |
358 |
– |
private final Executor exec; |
359 |
– |
private final Callable<T> func; |
360 |
– |
private final long msecs; |
361 |
– |
|
362 |
– |
TimedCallable(Executor exec, Callable<T> func, long msecs) { |
363 |
– |
this.exec = exec; |
364 |
– |
this.func = func; |
365 |
– |
this.msecs = msecs; |
366 |
– |
} |
367 |
– |
|
368 |
– |
public T call() throws Exception { |
369 |
– |
Future<T> ftask = Executors.execute(exec, func); |
370 |
– |
try { |
371 |
– |
return ftask.get(msecs, TimeUnit.MILLISECONDS); |
372 |
– |
} finally { |
373 |
– |
ftask.cancel(true); |
374 |
– |
} |
375 |
– |
} |
376 |
– |
} |
377 |
– |
|
378 |
– |
|
379 |
– |
private static class Fib implements Callable<BigInteger> { |
380 |
– |
private final BigInteger n; |
381 |
– |
Fib(long n) { |
382 |
– |
if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
383 |
– |
this.n = BigInteger.valueOf(n); |
384 |
– |
} |
385 |
– |
public BigInteger call() { |
386 |
– |
BigInteger f1 = BigInteger.ONE; |
387 |
– |
BigInteger f2 = f1; |
388 |
– |
for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
389 |
– |
BigInteger t = f1.add(f2); |
390 |
– |
f1 = f2; |
391 |
– |
f2 = t; |
392 |
– |
} |
393 |
– |
return f1; |
394 |
– |
} |
395 |
– |
}; |
396 |
– |
|
372 |
|
|
373 |
|
|
374 |
|
} |