Jackie-Jiang commented on code in PR #8786:
URL: https://github.com/apache/pinot/pull/8786#discussion_r884014858
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pinot-common/src/main/java/org/apache/pinot/common/utils/LLCSegmentName.java:
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@@ -59,6 +59,28 @@ public LLCSegmentName(String tableName, int
partitionGroupId, int sequenceNumber
_segmentName = tableName + SEPARATOR + partitionGroupId + SEPARATOR +
sequenceNumber + SEPARATOR + _creationTime;
}
+ private LLCSegmentName(String tableName, int partitionGroupId, int
sequenceNumber, String creationTime,
+ String segmentName) {
+ _tableName = tableName;
+ _partitionGroupId = partitionGroupId;
+ _sequenceNumber = sequenceNumber;
+ _creationTime = creationTime;
+ _segmentName = segmentName;
+ }
+
+ /**
+ * Returns the {@link LLCSegmentName} for the given segment name, or {@code
null} if the given segment name does not
+ * represent an LLC segment.
+ */
+ @Nullable
+ public static LLCSegmentName getLLCSegmentName(String segmentName) {
+ String[] parts = StringUtils.splitByWholeSeparator(segmentName, SEPARATOR);
+ if (parts.length != 4) {
+ return null;
+ }
+ return new LLCSegmentName(parts[0], Integer.parseInt(parts[1]),
Integer.parseInt(parts[2]), parts[3], segmentName);
Review Comment:
This method is added to avoid splitting the same string multiple times and
creating extra garbage (it can avoid the extra check of segment name format
before creating the `LLCSegmentName` object), so we need a new constructor
without any extra processing.
Changed the static method to `of()`
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