rdblue commented on a change in pull request #2146:
URL: https://github.com/apache/iceberg/pull/2146#discussion_r564744618
##########
File path: core/src/main/java/org/apache/iceberg/CatalogUtil.java
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@@ -129,6 +129,35 @@ private static void deleteFiles(FileIO io,
Set<ManifestFile> allManifests) {
});
}
+ /**
+ * Get constructor for Catalog from impl. Impl must be valid class name and
have zero-arg constructor.
+ *
+ * <p>We try to get the constructor for impl and if we fail we check for
common error patterns. Specifically:
+ * a ClassNotFoundException for an invalid impl String and a
NoClassDefFoundError if impl fails to get initialized.
+ * Otherwise the original exception is passed up and the error is assumed to
be a missing no-args constructor.
+ *
+ * @param impl catalog implementation full class name
+ * @return constructor for catalog implementation impl
+ * @throws IllegalArgumentException if no-arg constructor not found or error
during initialization
+ */
+ private static DynConstructors.Ctor<Catalog> getCatalogConstructor(String
impl) {
Review comment:
Nit: use of `get` when a more descriptive verb would be better. For
example, `find` implies that it may not be found.
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