okumin commented on code in PR #5856:
URL: https://github.com/apache/hive/pull/5856#discussion_r2154018928
##########
ql/src/java/org/apache/hadoop/hive/ql/metadata/PartitionTree.java:
##########
@@ -258,21 +254,20 @@ List<Partition> getPartitionsByFilter(final String
filter) throws MetaException
return new ArrayList<>(parts.values());
}
List<Partition> result = new ArrayList<>();
- ScriptEngine se = new ScriptEngineManager().getEngineByName("JavaScript");
- if (se == null) {
- LOG.error("JavaScript script engine is not found, therefore partition
filtering "
- + "for temporary tables is disabled.");
- return result;
- }
- for (Map.Entry<String, Partition> entry : parts.entrySet()) {
- se.put("partitionName", entry.getKey());
- se.put("values", entry.getValue().getValues());
- try {
- if ((Boolean)se.eval(filter)) {
- result.add(entry.getValue());
+ try (GraalJSScriptEngine se = GraalJSScriptEngine.create(null,
+ Context.newBuilder().allowExperimentalOptions(true)
+ .option("js.nashorn-compat", "true")
+ .allowAllAccess(true))) {
Review Comment:
You'll be right. What if `.allowAllAccess(true)` is removed? The document
doesn't mention the option.
```
try (Context context =
Context.newBuilder().allowExperimentalOptions(true).option("js.nashorn-compat",
"true").build()) {
context.eval("js", "print(__LINE__)");
}
```
If GraalJS works with Hive without the option, it's better from the point of
view of security.
https://www.graalvm.org/sdk/javadoc/org/graalvm/polyglot/Context.Builder.html#allowAllAccess(boolean)
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