Core: Add missing REST endpoint definitions (#11756)

core/src/main/java/org/apache/iceberg/rest/Endpoint.java

@@ -40,6 +40,8 @@ public class Endpoint {
       Endpoint.create("GET", ResourcePaths.V1_NAMESPACES);
   public static final Endpoint V1_LOAD_NAMESPACE =
       Endpoint.create("GET", ResourcePaths.V1_NAMESPACE);
+  public static final Endpoint V1_NAMESPACE_EXISTS =
+      Endpoint.create("HEAD", ResourcePaths.V1_NAMESPACE);
   public static final Endpoint V1_CREATE_NAMESPACE =
       Endpoint.create("POST", ResourcePaths.V1_NAMESPACES);
   public static final Endpoint V1_UPDATE_NAMESPACE =
@@ -52,6 +54,7 @@ public class Endpoint {
   // table endpoints
   public static final Endpoint V1_LIST_TABLES = Endpoint.create("GET", ResourcePaths.V1_TABLES);
   public static final Endpoint V1_LOAD_TABLE = Endpoint.create("GET", ResourcePaths.V1_TABLE);
+  public static final Endpoint V1_TABLE_EXISTS = Endpoint.create("HEAD", ResourcePaths.V1_TABLE);
   public static final Endpoint V1_CREATE_TABLE = Endpoint.create("POST", ResourcePaths.V1_TABLES);
   public static final Endpoint V1_UPDATE_TABLE = Endpoint.create("POST", ResourcePaths.V1_TABLE);
   public static final Endpoint V1_DELETE_TABLE = Endpoint.create("DELETE", ResourcePaths.V1_TABLE);
@@ -61,10 +64,23 @@ public class Endpoint {
       Endpoint.create("POST", ResourcePaths.V1_TABLE_REGISTER);
   public static final Endpoint V1_REPORT_METRICS =
       Endpoint.create("POST", ResourcePaths.V1_TABLE_METRICS);
+  public static final Endpoint V1_TABLE_CREDENTIALS =
+      Endpoint.create("GET", ResourcePaths.V1_TABLE_CREDENTIALS);
+
+  // table scan plan endpoints
+  public static final Endpoint V1_SUBMIT_TABLE_SCAN_PLAN =
+      Endpoint.create("POST", ResourcePaths.V1_TABLE_SCAN_PLAN_SUBMIT);
+  public static final Endpoint V1_FETCH_TABLE_SCAN_PLAN =
+      Endpoint.create("GET", ResourcePaths.V1_TABLE_SCAN_PLAN);
+  public static final Endpoint V1_CANCEL_TABLE_SCAN_PLAN =
+      Endpoint.create("DELETE", ResourcePaths.V1_TABLE_SCAN_PLAN);
+  public static final Endpoint V1_FETCH_TABLE_SCAN_PLAN_TASKS =
+      Endpoint.create("POST", ResourcePaths.V1_TABLE_SCAN_PLAN_TASKS);
 
   // view endpoints
   public static final Endpoint V1_LIST_VIEWS = Endpoint.create("GET", ResourcePaths.V1_VIEWS);
   public static final Endpoint V1_LOAD_VIEW = Endpoint.create("GET", ResourcePaths.V1_VIEW);
+  public static final Endpoint V1_VIEW_EXISTS = Endpoint.create("HEAD", ResourcePaths.V1_VIEW);
   public static final Endpoint V1_CREATE_VIEW = Endpoint.create("POST", ResourcePaths.V1_VIEWS);
   public static final Endpoint V1_UPDATE_VIEW = Endpoint.create("POST", ResourcePaths.V1_VIEW);
   public static final Endpoint V1_DELETE_VIEW = Endpoint.create("DELETE", ResourcePaths.V1_VIEW);

core/src/main/java/org/apache/iceberg/rest/RESTSessionCatalog.java

@@ -138,11 +138,13 @@ public class RESTSessionCatalog extends BaseViewSessionCatalog
       ImmutableSet.<Endpoint>builder()
           .add(Endpoint.V1_LIST_NAMESPACES)
           .add(Endpoint.V1_LOAD_NAMESPACE)
+          .add(Endpoint.V1_NAMESPACE_EXISTS)
           .add(Endpoint.V1_CREATE_NAMESPACE)
           .add(Endpoint.V1_UPDATE_NAMESPACE)
           .add(Endpoint.V1_DELETE_NAMESPACE)
           .add(Endpoint.V1_LIST_TABLES)
           .add(Endpoint.V1_LOAD_TABLE)
+          .add(Endpoint.V1_TABLE_EXISTS)
           .add(Endpoint.V1_CREATE_TABLE)
           .add(Endpoint.V1_UPDATE_TABLE)
           .add(Endpoint.V1_DELETE_TABLE)
@@ -155,6 +157,7 @@ public class RESTSessionCatalog extends BaseViewSessionCatalog
       ImmutableSet.<Endpoint>builder()
           .add(Endpoint.V1_LIST_VIEWS)
           .add(Endpoint.V1_LOAD_VIEW)
+          .add(Endpoint.V1_VIEW_EXISTS)
           .add(Endpoint.V1_CREATE_VIEW)
           .add(Endpoint.V1_UPDATE_VIEW)
           .add(Endpoint.V1_DELETE_VIEW)
@@ -434,6 +437,7 @@ public void renameTable(SessionContext context, TableIdentifier from, TableIdent
 
   @Override
   public boolean tableExists(SessionContext context, TableIdentifier identifier) {
+    Endpoint.check(endpoints, Endpoint.V1_TABLE_EXISTS);
     checkIdentifierIsValid(identifier);
 
     try {
@@ -654,6 +658,7 @@ public List<Namespace> listNamespaces(SessionContext context, Namespace namespac
 
   @Override
   public boolean namespaceExists(SessionContext context, Namespace namespace) {
+    Endpoint.check(endpoints, Endpoint.V1_NAMESPACE_EXISTS);
     checkNamespaceIsValid(namespace);
 
     try {
@@ -1227,6 +1232,7 @@ public List<TableIdentifier> listViews(SessionContext context, Namespace namespa
 
   @Override
   public boolean viewExists(SessionContext context, TableIdentifier identifier) {
+    Endpoint.check(endpoints, Endpoint.V1_VIEW_EXISTS);
     checkViewIdentifierIsValid(identifier);
 
     try {

core/src/main/java/org/apache/iceberg/rest/ResourcePaths.java

@@ -32,10 +32,15 @@ public class ResourcePaths {
       "/v1/{prefix}/namespaces/{namespace}/properties";
   public static final String V1_TABLES = "/v1/{prefix}/namespaces/{namespace}/tables";
   public static final String V1_TABLE = "/v1/{prefix}/namespaces/{namespace}/tables/{table}";
+  public static final String V1_TABLE_CREDENTIALS =
+      "/v1/{prefix}/namespaces/{namespace}/tables/{table}/credentials";
   public static final String V1_TABLE_REGISTER = "/v1/{prefix}/namespaces/{namespace}/register";
   public static final String V1_TABLE_METRICS =
       "/v1/{prefix}/namespaces/{namespace}/tables/{table}/metrics";
   public static final String V1_TABLE_RENAME = "/v1/{prefix}/tables/rename";
+  public static final String V1_TABLE_SCAN_PLAN_SUBMIT = "/v1/{prefix}/tables/{table}/plan";
+  public static final String V1_TABLE_SCAN_PLAN = "/v1/{prefix}/tables/{table}/plan/{plan-id}";
+  public static final String V1_TABLE_SCAN_PLAN_TASKS = "/v1/{prefix}/tables/{table}/tasks";
   public static final String V1_TRANSACTIONS_COMMIT = "/v1/{prefix}/transactions/commit";
   public static final String V1_VIEWS = "/v1/{prefix}/namespaces/{namespace}/views";
   public static final String V1_VIEW = "/v1/{prefix}/namespaces/{namespace}/views/{view}";