smiklosovic commented on code in PR #4277:
URL: https://github.com/apache/cassandra/pull/4277#discussion_r2237099877
##########
src/java/org/apache/cassandra/io/sstable/format/TOCComponent.java:
##########
@@ -78,16 +83,41 @@ public static Set<Component> loadTOC(Descriptor descriptor,
boolean skipMissing)
}
/**
- * Appends new component names to the TOC component.
+ * Updates the TOC file by reading existing component entries, merging
them with the given components,
+ * sorting the combined list in lexicographic order for deterministic
output.
+ *
+ * @param descriptor the SSTable descriptor for which to update the TOC
+ * @param components new components to merge into the TOC (existing TOC
entries are preserved)
+ * @throws FSReadError if an I/O error occurs when reading the existing
TOC file
+ * @throws FSWriteError if an I/O error occurs when creating or
overwriting the TOC file
*/
- public static void appendTOC(Descriptor descriptor, Collection<Component>
components)
+ public static void updateTOC(Descriptor descriptor, Collection<Component>
components)
{
File tocFile = descriptor.fileFor(Components.TOC);
- try (FileOutputStreamPlus out = tocFile.newOutputStream(APPEND);
- PrintWriter w = new PrintWriter(out))
+
+ // read existing entries if any
+ Path tocPath = tocFile.toPath();
Review Comment:
You don't need this. Just work directly with `tocFile`.
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