rkhachatryan commented on a change in pull request #10151: [FLINK-14231] Handle
the processing-time timers when closing operators to make endInput semantics on
the operator chain strict
URL: https://github.com/apache/flink/pull/10151#discussion_r355389613
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/ProcessingTimeServiceImpl.java
##########
@@ -18,18 +18,57 @@
package org.apache.flink.streaming.runtime.tasks;
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.annotation.VisibleForTesting;
+import org.apache.flink.runtime.concurrent.FutureUtils;
+import org.apache.flink.util.concurrent.NeverCompleteFuture;
+
+import javax.annotation.Nonnull;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.concurrent.CancellationException;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Delayed;
+import java.util.concurrent.ExecutionException;
import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
import java.util.function.Function;
+import static org.apache.flink.util.Preconditions.checkNotNull;
+import static org.apache.flink.util.Preconditions.checkState;
+
+@Internal
class ProcessingTimeServiceImpl implements ProcessingTimeService {
+
+ private static final int STATUS_ALIVE = 0;
+ private static final int STATUS_QUIESCED = 1;
+
Review comment:
I'd rather have a set of states (`enum`) or just a boolean `isActive`.
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