Upgrade Iceberg REST Spec to match Iceberg 1.8 (#1283)

* prep for review

* reset

* more changes

* fixes

* github action change

* another build change

* try api revert

* re-all

* custom type mappings, rebuild

* autolint

* polish

* yank custom types

* update

* autolint

* wip

* Revert build changes

* example

* autolint

Author: eric-maynard

api/iceberg-service/build.gradle.kts

@@ -120,3 +120,5 @@ sourceSets {
 tasks.named("javadoc") { dependsOn("jandex") }
 
 tasks.named("processResources") { dependsOn("openApiGenerate") }
+
+tasks.named("openApiGenerate") { outputs.cacheIf { false } }

service/common/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogAdapter.java

@@ -365,6 +365,7 @@ public Response loadTable(
       String namespace,
       String table,
       String accessDelegationMode,
+      String ifNoneMatchString,
       String snapshots,
       RealmContext realmContext,
       SecurityContext securityContext) {
@@ -373,9 +374,7 @@ public Response loadTable(
     Namespace ns = decodeNamespace(namespace);
     TableIdentifier tableIdentifier = TableIdentifier.of(ns, RESTUtil.decodeString(table));
 
-    // TODO: Populate with header value from parameter once the generated interface
-    //  contains the if-none-match header
-    IfNoneMatch ifNoneMatch = IfNoneMatch.fromHeader(null);
+    IfNoneMatch ifNoneMatch = IfNoneMatch.fromHeader(ifNoneMatchString);
 
     if (ifNoneMatch.isWildcard()) {
       throw new BadRequestException("If-None-Match may not take the value of '*'");