| /* |
| * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| /* |
| * @test |
| * @bug 5102289 |
| * @summary Stress test for ResourceBundle.getBundle with ResourceBundle.Control. |
| * @run main/timeout=300/othervm -esa StressTest |
| */ |
| |
| import java.util.*; |
| import java.util.concurrent.atomic.*; |
| |
| public class StressTest { |
| static final Locale ROOT_LOCALE = new Locale(""); |
| static final Random rand = new Random(); |
| static final Locale[] locales = { |
| Locale.US, |
| Locale.CHINA, |
| ROOT_LOCALE, |
| Locale.JAPAN, |
| Locale.CANADA, |
| Locale.KOREA |
| }; |
| static final String[] expected = { |
| "U.S.A.", |
| "China", |
| "U.S.A.", |
| "Japan", |
| "U.S.A.", // StressOut_en_CA.properties is empty. |
| "Korea" |
| }; |
| final static long startTime = System.currentTimeMillis(); |
| |
| // increment each element when one getBundle call is done. |
| static AtomicIntegerArray counters; |
| static int[] prevCounters; |
| static int intervalForCounterCheck; |
| static AtomicInteger clearCounter = new AtomicInteger(); |
| |
| static volatile boolean runrun = true; |
| |
| public static void main(String[] args) { |
| int nThreads = 2; |
| if (args.length > 0) { |
| nThreads = Math.max(Integer.parseInt(args[0]), 2); |
| } |
| int nSeconds = 180; |
| if (args.length > 1) { |
| nSeconds = Integer.parseInt(args[1]); |
| } |
| Locale.setDefault(Locale.US); |
| Thread[] tasks = new Thread[locales.length * nThreads]; |
| counters = new AtomicIntegerArray(tasks.length); |
| |
| for (int i = 0; i < tasks.length; i++) { |
| tasks[i] = new Thread(new Worker(i)); |
| } |
| for (int i = 0; i < tasks.length; i++) { |
| tasks[i].start(); |
| } |
| |
| int nProcessors = Runtime.getRuntime().availableProcessors(); |
| intervalForCounterCheck = Math.max(tasks.length / nProcessors, 1); |
| System.out.printf("%d processors, intervalForCounterCheck = %d [sec]%n", |
| nProcessors, intervalForCounterCheck); |
| try { |
| for (int i = 0; runrun && i < nSeconds; i++) { |
| Thread.sleep(1000); // 1 seconds |
| if ((i % intervalForCounterCheck) == 0) { |
| checkCounters(); |
| } |
| } |
| runrun = false; |
| for (int i = 0; i < tasks.length; i++) { |
| tasks[i].join(); |
| } |
| } catch (InterruptedException e) { |
| } |
| |
| printCounters(); |
| } |
| |
| static void checkCounters() { |
| int length = counters.length(); |
| int[] snapshot = new int[length]; |
| for (int i = 0; i < length; i++) { |
| snapshot[i] = counters.get(i); |
| } |
| |
| if (prevCounters == null) { |
| prevCounters = snapshot; |
| return; |
| } |
| |
| for (int i = 0; i < length; i++) { |
| if (snapshot[i] > prevCounters[i]) { |
| continue; |
| } |
| System.out.printf( |
| "Warning: Thread #%d hasn't updated its counter for the last %d second(s).%n", |
| i, intervalForCounterCheck); |
| } |
| prevCounters = snapshot; |
| } |
| |
| static void printCounters() { |
| long total = 0; |
| int min = Integer.MAX_VALUE; |
| int max = Integer.MIN_VALUE; |
| for (int i = 0; i < counters.length(); i++) { |
| int counter = counters.get(i); |
| total += counter; |
| min = Math.min(min, counter); |
| max = Math.max(max, counter); |
| } |
| System.out.printf("Total: %d calls, min=%d, max=%d, cache cleared %d times%n", |
| total, min, max, clearCounter.get()); |
| } |
| |
| static class Worker implements Runnable { |
| final int id; |
| final int index; |
| final Locale locale; |
| final String str; |
| final int max; |
| final boolean cleaner; |
| ResourceBundle.Control control; |
| |
| Worker(int i) { |
| id = i; |
| index = i % locales.length; |
| locale = locales[index]; |
| cleaner = locale.equals(ROOT_LOCALE); |
| str = expected[index]; |
| max = rand.nextInt((index + 1) * 500) + 1000; |
| control = new TestControl(max); |
| System.out.println("Worker" + i + ": locale="+locale+", expected="+str+ |
| ", max="+max); |
| } |
| |
| public void run() { |
| while (runrun) { |
| ResourceBundle rb = ResourceBundle.getBundle("StressOut", locale, control); |
| counters.incrementAndGet(id); |
| String s = rb.getString("data"); |
| if (!s.equals(str)) { |
| runrun = false; |
| throw new RuntimeException(locale + ": rb.locale=" + rb.getLocale() + |
| ", got " + s + ", expected " + str); |
| } |
| try { |
| Thread.sleep(rand.nextInt(max/500)); |
| } catch (InterruptedException e) { |
| } |
| if (cleaner && (rand.nextInt(10000) == 0)) { |
| //System.out.println("Clearing cache!"); |
| ResourceBundle.clearCache(); |
| clearCounter.incrementAndGet(); |
| } |
| } |
| } |
| |
| static class TestControl extends ResourceBundle.Control { |
| int max; |
| |
| public List<Locale> getCandidateLocales(String baseName, Locale locale) { |
| List<Locale> list = super.getCandidateLocales(baseName, locale); |
| //System.out.println("Candidate locales=" + list); |
| return list; |
| } |
| public TestControl(int max) { |
| this.max = max; |
| } |
| public long getTimeToLive(String baseName, Locale locale) { |
| // This will set TTL to a random value for each bundle. |
| long ttl = rand.nextInt(max); |
| //System.out.println("TTL: " + baseName + "_" + locale + " for " + ttl); |
| return ttl; |
| } |
| public boolean needsReload(String baseName, Locale locale, |
| String format, ClassLoader loader, |
| ResourceBundle bundle, long loadTime) { |
| //System.out.println("Expired: " + baseName + "_" + locale + "." + format + |
| // " at " + (loadTime-startTime) + ", bundle=" + bundle); |
| return rand.nextBoolean(); |
| } |
| } |
| } |
| } |