eolivelli commented on code in PR #17241:
URL: https://github.com/apache/pulsar/pull/17241#discussion_r956139849
##########
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/cache/RangeEntryCacheImpl.java:
##########
@@ -256,6 +276,130 @@ public void asyncReadEntry(ReadHandle lh, long
firstEntry, long lastEntry, boole
}
}
+ @AllArgsConstructor
+ private static final class ReadEntriesCallbackWithContext {
+ final ReadEntriesCallback callback;
+ final Object ctx;
+ final long startEntry;
+ final long endEntry;
+ }
+
+ private CachedPendingRead findBestCandidate(PendingReadKey key,
Map<PendingReadKey, CachedPendingRead> ledgerCache,
+ AtomicBoolean created) {
+ synchronized (ledgerCache) {
+ CachedPendingRead existing = ledgerCache.get(key);
+ if (existing != null) {
+ return existing;
+ }
+ for (Map.Entry<PendingReadKey, CachedPendingRead> entry :
ledgerCache.entrySet()) {
+ if (entry.getKey().includes(key)) {
+ return entry.getValue();
+ }
+ }
+ created.set(true);
+ CachedPendingRead newRead = new CachedPendingRead(key,
ledgerCache);
+ ledgerCache.put(key, newRead);
+ return newRead;
+ }
+ }
+
+ private class CachedPendingRead {
+ final PendingReadKey key;
+ final Map<PendingReadKey, CachedPendingRead> ledgerCache;
+ final List<ReadEntriesCallbackWithContext> callbacks = new
ArrayList<>(1);
+ boolean completed = false;
+
+ public CachedPendingRead(PendingReadKey key,
+ Map<PendingReadKey, CachedPendingRead>
ledgerCache) {
+ this.key = key;
+ this.ledgerCache = ledgerCache;
+ }
+
+ private List<EntryImpl> keepEntries(List<EntryImpl> list, long
startEntry, long endEntry) {
+ List<EntryImpl> result = new ArrayList<>((int) (endEntry -
startEntry));
+ for (EntryImpl entry : list) {
+ long entryId = entry.getEntryId();
+ if (startEntry <= entryId && entryId <= endEntry) {
+ result.add(entry);
+ } else {
+ entry.release();
+ }
+ }
+ return result;
+ }
+
+ public void attach(CompletableFuture<List<EntryImpl>> handle) {
Review Comment:
it is done here
https://github.com/apache/pulsar/pull/17241/files#diff-c55509e3ab1389d89a58fd564f2e318dbb95f50121ab33c729a7ca4a21d02ef1R340
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