kishoreg commented on a change in pull request #6400:
URL: https://github.com/apache/incubator-pinot/pull/6400#discussion_r550945424
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/realtime/impl/geospatial/RealtimeH3IndexReader.java
##########
@@ -0,0 +1,63 @@
+package org.apache.pinot.core.realtime.impl.geospatial;
+
+import com.uber.h3core.H3Core;
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import org.apache.pinot.core.realtime.impl.ThreadSafeMutableRoaringBitmap;
+import org.apache.pinot.core.segment.creator.GeoSpatialIndexCreator;
+import org.apache.pinot.core.segment.creator.impl.geospatial.H3IndexResolution;
+import org.apache.pinot.core.segment.index.readers.H3IndexReader;
+import org.roaringbitmap.buffer.ImmutableRoaringBitmap;
+import org.roaringbitmap.buffer.MutableRoaringBitmap;
+
+
+/**
+ * A H3 index reader for the real-time H3 index values on the fly.
+ * <p>This class is thread-safe for single writer multiple readers.
+ */
+public class RealtimeH3IndexReader implements GeoSpatialIndexCreator,
H3IndexReader {
+ private final H3Core _h3Core;
+ private final Map<Long, ThreadSafeMutableRoaringBitmap> _h3IndexMap = new
ConcurrentHashMap<>();
+ private final H3IndexResolution _resolution;
+ private int _lowestResolution;
+
+ public RealtimeH3IndexReader(List<Integer> resolutions)
Review comment:
why multiple constructors? lets stick with H3IndexConfig?
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/realtime/impl/geospatial/RealtimeH3IndexReader.java
##########
@@ -0,0 +1,63 @@
+package org.apache.pinot.core.realtime.impl.geospatial;
+
+import com.uber.h3core.H3Core;
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import org.apache.pinot.core.realtime.impl.ThreadSafeMutableRoaringBitmap;
+import org.apache.pinot.core.segment.creator.GeoSpatialIndexCreator;
+import org.apache.pinot.core.segment.creator.impl.geospatial.H3IndexResolution;
+import org.apache.pinot.core.segment.index.readers.H3IndexReader;
+import org.roaringbitmap.buffer.ImmutableRoaringBitmap;
+import org.roaringbitmap.buffer.MutableRoaringBitmap;
+
+
+/**
+ * A H3 index reader for the real-time H3 index values on the fly.
+ * <p>This class is thread-safe for single writer multiple readers.
+ */
+public class RealtimeH3IndexReader implements GeoSpatialIndexCreator,
H3IndexReader {
+ private final H3Core _h3Core;
+ private final Map<Long, ThreadSafeMutableRoaringBitmap> _h3IndexMap = new
ConcurrentHashMap<>();
Review comment:
may be start with something bigger depending on the resolution to avoid
resizes
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/segment/index/column/ColumnIndexContainer.java
##########
@@ -51,7 +51,7 @@
/**
* Returns the H3 index for the column, or {@code null} if it does not exist.
*/
- H3IndexReader getH3Index();
+ ImmutableH3IndexReader getH3Index();
Review comment:
why is this change needed?
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