coderzc commented on code in PR #17164:
URL: https://github.com/apache/pulsar/pull/17164#discussion_r973093200
##########
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java:
##########
@@ -324,24 +328,27 @@ public Map<String, String> getCursorProperties() {
return cursorProperties;
}
- @Override
- public CompletableFuture<Void> setCursorProperties(Map<String, String>
cursorProperties) {
+ private CompletableFuture<Void> computeCursorProperties(
+ final Function<Map<String, String>, Map<String, String>>
updateFunction) {
CompletableFuture<Void> updateCursorPropertiesResult = new
CompletableFuture<>();
- ledger.getStore().asyncGetCursorInfo(ledger.getName(), name, new
MetaStoreCallback<>() {
- @Override
- public void operationComplete(ManagedCursorInfo info, Stat stat) {
- ManagedCursorInfo copy = ManagedCursorInfo
- .newBuilder(info)
- .clearCursorProperties()
-
.addAllCursorProperties(buildStringPropertiesMap(cursorProperties))
- .build();
- ledger.getStore().asyncUpdateCursorInfo(ledger.getName(),
- name, copy, stat, new MetaStoreCallback<>() {
+
+ final Stat lastCursorLedgerStat =
ManagedCursorImpl.this.cursorLedgerStat;
+
+ Map<String, String> newProperties =
updateFunction.apply(ManagedCursorImpl.this.cursorProperties);
+ ManagedCursorInfo copy = ManagedCursorInfo
+ .newBuilder(ManagedCursorImpl.this.managedCursorInfo)
+ .clearCursorProperties()
+
.addAllCursorProperties(buildStringPropertiesMap(newProperties))
+ .build();
+
+ ledger.getStore().asyncUpdateCursorInfo(ledger.getName(),
+ name, copy, lastCursorLedgerStat, new MetaStoreCallback<>() {
@Override
public void operationComplete(Void result, Stat stat) {
log.info("[{}] Updated ledger cursor: {} properties
{}", ledger.getName(),
name, cursorProperties);
- ManagedCursorImpl.this.cursorProperties =
cursorProperties;
+ ManagedCursorImpl.this.managedCursorInfo = copy;
+ ManagedCursorImpl.this.cursorProperties =
Collections.unmodifiableMap(newProperties);
Review Comment:
Yes, the newProperties already a copy.
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