coderzc commented on code in PR #17164:
URL: https://github.com/apache/pulsar/pull/17164#discussion_r973101218
##########
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/Futures.java:
##########
@@ -68,4 +69,28 @@ public static CompletableFuture<Void>
waitForAll(List<CompletableFuture<Void>> f
return compositeFuture;
}
+
+ public static <T> CompletableFuture<T>
executeWithRetry(Supplier<CompletableFuture<T>> op,
+ Class<? extends
Exception> needRetryExceptionClass) {
+ CompletableFuture<T> resultFuture = new CompletableFuture<>();
+ op.get().whenComplete((res, ex) -> {
+ if (ex == null) {
+ resultFuture.complete(res);
+ } else {
+ if (needRetryExceptionClass.isAssignableFrom(ex.getClass())) {
+ executeWithRetry(op,
needRetryExceptionClass).whenComplete((res2, ex2) -> {
+ if (ex2 == null) {
+ resultFuture.complete(res2);
+ } else {
+ resultFuture.completeExceptionally(ex2);
+ }
+ });
+ return;
+ }
+ resultFuture.completeExceptionally(ex);
+ }
+ });
+
+ return resultFuture;
+ }
Review Comment:
`RetryUtil#retryAsynchronously` can't retry based on a specific exception, I
will improve it in another PR when.
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