dujian0068 commented on code in PR #16266:
URL: https://github.com/apache/kafka/pull/16266#discussion_r1635734496
##########
clients/src/main/java/org/apache/kafka/common/utils/Time.java:
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@@ -30,7 +30,40 @@
*/
public interface Time {
- Time SYSTEM = new SystemTime();
+ // A time implementation that uses the system clock and sleep call.
+ // Use inline implementation to ensure that only one Time#SYSTEM exists
in a program
+ Time SYSTEM = new Time() {
+ @Override
+ public long milliseconds() {
+ return System.currentTimeMillis();
+ }
+
+ @Override
+ public long nanoseconds() {
+ return System.nanoTime();
+ }
+
+ @Override
+ public void sleep(long ms) {
+ Utils.sleep(ms);
+ }
+
+ @Override
+ public void waitObject(Object obj, Supplier<Boolean> condition, long
deadlineMs) throws InterruptedException {
Review Comment:
Thank you very much for your reply, but I don't fully understand which
method you want to refactor.
The developer of `Time#waitObject()` seems to want to provide a unified
synchronization method based on `Time`, but it doesn't seem to need to be
refactored.
But `ProducerMetadata#awaitUpdate` can remove the `synchronized` keyword
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