danny0405 commented on code in PR #7627:
URL: https://github.com/apache/hudi/pull/7627#discussion_r1065348765
##########
hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieInstant.java:
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@@ -46,14 +55,35 @@ public class HoodieInstant implements Serializable,
Comparable<HoodieInstant> {
public static final Comparator<HoodieInstant> COMPARATOR =
Comparator.comparing(HoodieInstant::getTimestamp)
.thenComparing(ACTION_COMPARATOR).thenComparing(HoodieInstant::getState);
+ public static final Comparator<HoodieInstant> STATE_TRANSITION_COMPARATOR =
+ Comparator.comparing(HoodieInstant::getStateTransitionTime)
+ .thenComparing(HoodieInstant::getTimestamp)
+
.thenComparing(ACTION_COMPARATOR).thenComparing(HoodieInstant::getState);
+
public static String getComparableAction(String action) {
return COMPARABLE_ACTIONS.getOrDefault(action, action);
}
+ public static String extractTimestamp(String fileName) throws
IllegalArgumentException {
+ Objects.requireNonNull(fileName);
+
+ Matcher matcher = NAME_FORMAT.matcher(fileName);
+ if (matcher.find()) {
+ return matcher.group(1);
+ }
+
+ throw new IllegalArgumentException(String.format(FILE_NAME_FORMAT_ERROR,
fileName));
+ }
+
public static String getTimelineFileExtension(String fileName) {
Objects.requireNonNull(fileName);
- int dotIndex = fileName.indexOf('.');
- return dotIndex == -1 ? "" : fileName.substring(dotIndex);
+
+ Matcher matcher = NAME_FORMAT.matcher(fileName);
Review Comment:
Is the regex expr match efficient enough here ?
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