siddharthteotia commented on code in PR #9278:
URL: https://github.com/apache/pinot/pull/9278#discussion_r954569284
##########
pinot-core/src/main/java/org/apache/pinot/core/common/ObjectSerDeUtils.java:
##########
@@ -540,39 +538,38 @@ public byte[] serialize(Map<Object, Object> map) {
return new byte[Integer.BYTES];
}
- // No need to close these 2 streams
- ByteArrayOutputStream byteArrayOutputStream = new
ByteArrayOutputStream();
- DataOutputStream dataOutputStream = new
DataOutputStream(byteArrayOutputStream);
-
- try {
- // Write the size of the map
- dataOutputStream.writeInt(size);
-
- // Write the serialized key-value pairs
- Iterator<Map.Entry<Object, Object>> iterator =
map.entrySet().iterator();
- // First write the key type and value type
- Map.Entry<Object, Object> firstEntry = iterator.next();
- Object firstKey = firstEntry.getKey();
- Object firstValue = firstEntry.getValue();
- int keyTypeValue = ObjectType.getObjectType(firstKey).getValue();
- int valueTypeValue = ObjectType.getObjectType(firstValue).getValue();
- dataOutputStream.writeInt(keyTypeValue);
- dataOutputStream.writeInt(valueTypeValue);
- // Then write each key-value pair
- for (Map.Entry<Object, Object> entry : map.entrySet()) {
- byte[] keyBytes = ObjectSerDeUtils.serialize(entry.getKey(),
keyTypeValue);
- dataOutputStream.writeInt(keyBytes.length);
- dataOutputStream.write(keyBytes);
-
- byte[] valueBytes = ObjectSerDeUtils.serialize(entry.getValue(),
valueTypeValue);
- dataOutputStream.writeInt(valueBytes.length);
- dataOutputStream.write(valueBytes);
- }
- } catch (IOException e) {
- throw new RuntimeException("Caught exception while serializing Map",
e);
+ long bufferSize = (3 + 2 * (long) size) * Integer.BYTES;
Review Comment:
(nit) suggest giving a brief comment (for future readers) on what 3 and 2
means or may be use static final constant
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