add desensitization extension #433
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guanchao-yang
requested changes
Apr 12, 2021
| * 封装一个定时重置的计数器用于降低某些非必要操作的频率(比如某些预期内的错误日志). | ||
| * 具有如下特征: | ||
| * <ul> | ||
| * <li>计数器的值永远不超过times</li> |
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Codecov Report
@@ Coverage Diff @@
## master #433 +/- ##
============================================
- Coverage 44.78% 44.47% -0.32%
+ Complexity 224 219 -5
============================================
Files 287 289 +2
Lines 9480 9539 +59
Branches 936 947 +11
============================================
- Hits 4246 4242 -4
- Misses 4754 4811 +57
- Partials 480 486 +6 Continue to review full report at Codecov.
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| final AtomicInteger counter = new AtomicInteger(); | ||
| long start = System.currentTimeMillis(); | ||
| // 在 1000ms 和 2000ms 时刻 会重置 |
| while (true) { | ||
| int c = counter.get(); | ||
| if (c < times) { | ||
| if (counter.compareAndSet(c, c + 1)) { |
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When can‘t get the CAS lock would be retry ,why not return false?
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Like
- java.util.concurrent.atomic.AtomicInteger#getAndIncrement
- sun.misc.Unsafe#getAndAddInt
Every time, at least one thread will success.
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Motivation:
data security
Modification:
add desensitization extension
Result: