korlov42 commented on code in PR #4814:
URL: https://github.com/apache/ignite-3/pull/4814#discussion_r1870781469
##########
modules/client-handler/src/main/java/org/apache/ignite/client/handler/JdbcQueryEventHandlerImpl.java:
##########
@@ -415,5 +463,59 @@ void close() {
finishTransactionAsync(false);
}
}
+
+ CancellationToken registerExecution(long token) {
+ CancelHandle handle = CancelHandle.create();
+
+ CancelHandle previousHandle = cancelHandles.putIfAbsent(token,
handle);
+
+ assert previousHandle == null;
+
+ return handle.token();
+ }
+
+ void deregisterExecution(long token) {
+ cancelHandles.remove(token);
+ }
+
+ CompletableFuture<Void> cancelExecution(long token) {
+ CancelHandle handle = cancelHandles.remove(token);
+
+ if (handle == null) {
+ return nullCompletedFuture();
+ }
+
+ return handle.cancelAsync();
+ }
+ }
+
+ private void doWhenAllCursorsComplete(
+ CompletableFuture<AsyncSqlCursor<InternalSqlRow>> cursorFuture,
Runnable action
+ ) {
+ List<CompletableFuture<?>> dependency = new ArrayList<>();
+ var cursorChainTraverser = new Function<AsyncSqlCursor<?>,
CompletableFuture<AsyncSqlCursor<?>>>() {
+ @Override
+ public CompletableFuture<AsyncSqlCursor<?>>
apply(AsyncSqlCursor<?> cursor) {
+ dependency.add(cursor.onClose());
+
+ if (cursor.hasNextResult()) {
+ return cursor.nextResult().thenCompose(this);
+ }
+
+ return allOf(dependency)
+ .thenRun(action)
+ .thenApply(ignored -> cursor);
+ }
+ };
+
+ cursorFuture
+ .thenCompose(cursorChainTraverser)
+ .handle((ignored, ex) -> {
+ if (ex != null) {
+ action.run();
+ }
+
+ return null;
+ });
Review Comment:
replaced, thanks
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