afs commented on code in PR #1677:
URL: https://github.com/apache/jena/pull/1677#discussion_r1050559606
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jena-arq/src/main/java/org/apache/jena/riot/RDFParserRegistry.java:
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@@ -171,6 +172,16 @@ public static ReaderRIOTFactory getFactory(Lang language) {
/** return true if the language is registered with the quads parser
factories */
public static boolean isQuads(Lang lang) { return
langQuads.contains(lang); }
+ /** Return registered triple languages. */
+ public static Set<Lang> registeredLangTriples() {
+ return Collections.unmodifiableCollection(langTriples);
+ }
Review Comment:
Better is `Set.copyOf(langTriples)` because it is isolated and thread safe.
Bonus for changing `RDFWriterRegistry.registered*Formats` to use `copyOf`.
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