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MemoizerTest: Test for FastCodeExceptionAnalyzer.formatCatch().
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Dec 19, 2022
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| package jd.core.test; | ||
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| import org.apache.commons.io.IOUtils; | ||
| import org.junit.Test; | ||
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| import java.nio.charset.StandardCharsets; | ||
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| import static org.junit.Assert.assertEquals; | ||
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| /* | ||
| * Test for FastCodeExceptionAnalyzer.formatCatch(). | ||
| */ | ||
| public class MemoizerTest extends AbstractTestCase { | ||
| @Test | ||
| public void test() throws Exception { | ||
| String output = decompile("org/apache/commons/lang3/concurrent/Memoizer"); | ||
| assertEquals(IOUtils.toString(getClass().getResource("Memoizer.txt"), StandardCharsets.UTF_8), output); | ||
| } | ||
| } |
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| /* */ package org.apache.commons.lang3.concurrent; | ||
| /* */ | ||
| /* */ import java.util.concurrent.Callable; | ||
| /* */ import java.util.concurrent.CancellationException; | ||
| /* */ import java.util.concurrent.ConcurrentHashMap; | ||
| /* */ import java.util.concurrent.ConcurrentMap; | ||
| /* */ import java.util.concurrent.ExecutionException; | ||
| /* */ import java.util.concurrent.Future; | ||
| /* */ import java.util.concurrent.FutureTask; | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
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| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ public class Memoizer<I, O> | ||
| /* */ implements Computable<I, O> | ||
| /* */ { | ||
| /* 56 */ private final ConcurrentMap<I, Future<O>> cache = new ConcurrentHashMap(); | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ private final Computable<I, O> computable; | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ private final boolean recalculate; | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ public Memoizer(Computable<I, O> computable) | ||
| /* */ { | ||
| /* 74 */ this(computable, false); | ||
| /* */ } | ||
| /* */ | ||
| /* */ | ||
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| /* */ | ||
| /* */ public Memoizer(Computable<I, O> computable, boolean recalculate) | ||
| /* */ { | ||
| /* 91 */ this.computable = computable; | ||
| /* 92 */ this.recalculate = recalculate; | ||
| /* */ } | ||
| /* */ | ||
| /* */ | ||
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| /* */ | ||
| /* */ public O compute(I arg) | ||
| /* */ throws InterruptedException | ||
| /* */ { | ||
| /* */ for (;;) | ||
| /* */ { | ||
| /* 116 */ Future<O> future = (Future)this.cache.get(arg); | ||
| /* 117 */ if (future == null) { | ||
| /* 118 */ Callable<O> eval = () -> { return this.computable.compute(arg); } ; | ||
| /* 119 */ FutureTask<O> futureTask = new FutureTask(eval); | ||
| /* 120 */ future = (Future)this.cache.putIfAbsent(arg, futureTask); | ||
| /* 121 */ if (future == null) { | ||
| /* 122 */ future = futureTask; | ||
| /* 123 */ futureTask.run(); | ||
| /* */ } | ||
| /* */ } | ||
| /* */ try { | ||
| /* 127 */ return (O)future.get(); | ||
| /* */ } catch (CancellationException e) { | ||
| /* 129 */ this.cache.remove(arg, future); | ||
| /* */ } catch (ExecutionException e) { | ||
| /* 131 */ if (this.recalculate) { | ||
| /* 132 */ this.cache.remove(arg, future); | ||
| /* */ } | ||
| /* */ | ||
| /* 135 */ throw launderException(e.getCause()); | ||
| /* */ } | ||
| /* */ } | ||
| /* */ } | ||
| /* */ | ||
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| /* */ | ||
| /* */ | ||
| /* */ | ||
| /* */ private RuntimeException launderException(Throwable throwable) | ||
| /* */ { | ||
| /* 151 */ if ((throwable instanceof RuntimeException)) | ||
| /* 152 */ return (RuntimeException)throwable; | ||
| /* 153 */ if ((throwable instanceof Error)) { | ||
| /* 154 */ throw ((Error)throwable); | ||
| /* */ } | ||
| /* 156 */ throw new IllegalStateException("Unchecked exception", throwable); | ||
| /* */ } | ||
| /* */ } |