reschke commented on code in PR #1314:
URL: https://github.com/apache/jackrabbit-oak/pull/1314#discussion_r1498889521
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/Utils.java:
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@@ -274,6 +278,73 @@ private static String diagsForEntry(Map.Entry<String,
PropertyStats> member) {
}
}
+ /**
+ * @return cluster if from first revision found in op, {@code -1} otherwise
+ */
+ public static int extractClusterId(UpdateOp op) {
+ for (Key key : op.getChanges().keySet()) {
+ if (key.getRevision() != null) {
+ return key.getRevision().getClusterId();
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Produce an {@link UpdateOp} suitable for shrinking branch revision
entries for given property in {@link Document}, {@code null} otherwise.
+ *
+ * @param doc document to inspect for repeated branch commits
+ * @param propertName property to check for
+ * @param revisionChecker filter for revisions (for instance, to check for
cluster id)
+ * @return {@link UpdateOp} suitable for shrinking document, {@code null}
otherwise
+ */
+ public static @Nullable UpdateOp getShrinkOp(Document doc, String
propertyName, Predicate<Revision> revisionChecker) {
Review Comment:
@mbaedke - this is where we could check the feature flug for now...
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