loquisgon commented on a change in pull request #11123:
URL: https://github.com/apache/druid/pull/11123#discussion_r620731258
##########
File path:
server/src/main/java/org/apache/druid/segment/realtime/FireHydrant.java
##########
@@ -34,17 +34,53 @@
import javax.annotation.Nullable;
import java.io.Closeable;
+import java.io.File;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Function;
/**
+ *
*/
public class FireHydrant
{
private final int count;
private final AtomicReference<ReferenceCountingSegment> adapter;
private volatile IncrementalIndex index;
+ private File persistedFile;
+ private SegmentId persistedSegmentId;
+
+ /**
+ * @return The persisted file path. This is needed to recreate mapped files
before merging.
+ * it will be null for real time hydrants.
+ */
+ public @Nullable File getPersistedFile()
+ {
+ return persistedFile;
+ }
+
+ /**
+ * @return The persisted segment id. This is needed to recreate mapped files
before merging.
+ * It will be null for real time hydrants
+ */
+ public @Nullable SegmentId getPersistedSegmentId()
Review comment:
In order to make the code less confusing I can still keep the
`persistedSegmentId` reference but modify the `getSegmentId` method as follows:
` public SegmentId getSegmentId()
{
if (adapter.get() != null) {
return adapter.get().getId();
} else {
return persistedSegmentId;
}
}`
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