RussellSpitzer commented on code in PR #18015:
URL: https://github.com/apache/iceberg/pull/18015#discussion_r3992976076
##########
core/src/main/java/org/apache/iceberg/rest/RESTUtil.java:
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@@ -436,4 +441,46 @@ public static Map<String, String>
configHeaders(Map<String, String> properties)
public static Map<String, String> idempotencyHeaders() {
return ImmutableMap.of(IDEMPOTENCY_KEY_HEADER,
UUIDUtil.generateUuidV7().toString());
}
+
+ /** Query parameters for the loadCredentials endpoint, from client-side
request context. */
+ public static Map<String, String> credentialsQueryParams(Map<String, String>
properties) {
+ ImmutableMap.Builder<String, String> queryParams = ImmutableMap.builder();
+ String planId = properties.get(RESTCatalogProperties.REST_SCAN_PLAN_ID);
+ if (planId != null) {
+ queryParams.put(RESTCatalogProperties.PLAN_ID_QUERY_PARAMETER, planId);
+ }
+
+ String referencedBy =
properties.get(RESTCatalogProperties.REST_REFERENCED_BY);
+ if (referencedBy != null) {
+ queryParams.put(RESTCatalogProperties.REFERENCED_BY_QUERY_PARAMETER,
referencedBy);
+ }
+
+ return queryParams.build();
+ }
+
+ /**
+ * Encodes a view chain (outermost first) as the {@code referenced-by} value.
+ *
+ * <p>Within an entry, the namespace levels and the view name are encoded
like the {@code parent}
+ * query parameter, as the spec requires, and joined by the namespace
separator as-is; entries are
+ * joined by a literal comma. The result is already percent-encoded and must
reach the wire
+ * verbatim, see {@link HTTPRequest#requestUri()}.
+ */
+ public static String encodeReferencedBy(
Review Comment:
Maybe package private for this
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