[#8892] feat(Lance-REST-Server): implement namespace operation APIs for LRS

conf/gravitino-lance-rest-server.conf.template

@@ -40,6 +40,9 @@ gravitino.lance-rest.requestHeaderSize = 131072
 # The response header size of the built-in web server
 gravitino.lance-rest.responseHeaderSize = 131072
 
-# THE CONFIGURATION FOR Lance CATALOG
-# The logical Lance catalog served by this REST endpoint
-gravitino.lance-rest.catalog-name = default
+# THE CONFIGURATION FOR Lance namespace backend
+# The backend Lance namespace for Lance REST service, it's recommended to use Gravitino
+gravitino.lance-rest.namespace-backend = gravitino
+gravitino.lance-rest.uri = http://localhost:8090
+# replace metalake with your metalake name in Gravitino
+# gravitino.lance-rest.metalake-name = metalake

conf/gravitino.conf.template

@@ -82,7 +82,8 @@ gravitino.authorization.serviceAdmins = anonymous
 
 # THE CONFIGURATION FOR AUXILIARY SERVICE
 # Auxiliary service names, separate by ','
-gravitino.auxService.names = iceberg-rest
+gravitino.auxService.names = iceberg-rest, lance-rest
+
 # Iceberg REST service classpath
 gravitino.iceberg-rest.classpath = iceberg-rest-server/libs, iceberg-rest-server/conf
 # Iceberg REST service host
@@ -93,3 +94,17 @@ gravitino.iceberg-rest.httpPort = 9001
 gravitino.iceberg-rest.catalog-backend = memory
 # The warehouse directory of Iceberg catalog for Iceberg REST service
 gravitino.iceberg-rest.warehouse = /tmp/
+
+# Lance REST service classpath
+gravitino.lance-rest.classpath = lance-rest-server/libs
+# Lance REST service host
+gravitino.lance-rest.host = 0.0.0.0
+# Lance REST service http port
+gravitino.lance-rest.httpPort = 9101
+
+# THE CONFIGURATION FOR Lance namespace backend
+# The backend Lance namespace for Lance REST service, it's recommended to use Gravitino
+gravitino.lance-rest.namespace-backend = gravitino
+gravitino.lance-rest.uri = http://localhost:8090
+# replace metalake with your metalake name in Gravitino
+# gravitino.lance-rest.metalake-name = metalake

lance/lance-common/src/main/java/org/apache/gravitino/lance/common/config/LanceConfig.java

@@ -39,29 +39,22 @@ public class LanceConfig extends Config implements OverwriteDefaultConfig {
   public static final String DEFAULT_NAMESPACE_BACKEND = "gravitino";
   public static final String DEFAULT_URI = "http://localhost:8090";
 
-  public static final ConfigEntry<String> CATALOG_NAME =
-      new ConfigBuilder(LANCE_CONFIG_PREFIX + "catalog-name")
-          .doc("Logical Lance catalog served by the REST endpoint")
-          .version(ConfigConstants.VERSION_0_1_0)
-          .stringConf()
-          .createWithDefault("default");
-
   public static final ConfigEntry<String> NAMESPACE_BACKEND =
-      new ConfigBuilder(LANCE_CONFIG_PREFIX + CONFIG_NAMESPACE_BACKEND)
+      new ConfigBuilder(CONFIG_NAMESPACE_BACKEND)
           .doc("The backend implementation for namespace operations")
           .version(ConfigConstants.VERSION_0_1_0)
           .stringConf()
           .createWithDefault(DEFAULT_NAMESPACE_BACKEND);
 
   public static final ConfigEntry<String> METALAKE_NAME =
-      new ConfigBuilder(LANCE_CONFIG_PREFIX + CONFIG_METALAKE)
+      new ConfigBuilder(CONFIG_METALAKE)
           .doc("The Metalake name for Gravitino namespace backend")
           .version(ConfigConstants.VERSION_0_1_0)
           .stringConf()
           .create();
 
   public static final ConfigEntry<String> NAMESPACE_URI =
-      new ConfigBuilder(LANCE_CONFIG_PREFIX + CONFIG_URI)
+      new ConfigBuilder(CONFIG_URI)
           .doc("The URI for the namespace backend, e.g., Gravitino server URI")
           .version(ConfigConstants.VERSION_0_1_0)
           .stringConf()
@@ -76,8 +69,8 @@ public LanceConfig() {
     super(false);
   }
 
-  public String getCatalogName() {
-    return get(CATALOG_NAME);
+  public String getNamespaceBackend() {
+    return get(NAMESPACE_BACKEND);
   }
 
   public String getNamespaceUri() {

lance/lance-common/src/main/java/org/apache/gravitino/lance/common/ops/LanceNamespaceOperations.java

@@ -32,19 +32,19 @@ public interface LanceNamespaceOperations {
   ListNamespacesResponse listNamespaces(
       String namespaceId, String delimiter, String pageToken, Integer limit);
 
-  DescribeNamespaceResponse describeNamespace(String id, String delimiter);
+  DescribeNamespaceResponse describeNamespace(String namespaceId, String delimiter);
 
   CreateNamespaceResponse createNamespace(
-      String id,
+      String namespaceId,
       String delimiter,
       CreateNamespaceRequest.ModeEnum mode,
       Map<String, String> properties);
 
   DropNamespaceResponse dropNamespace(
-      String id,
+      String namespaceId,
       String delimiter,
       DropNamespaceRequest.ModeEnum mode,
       DropNamespaceRequest.BehaviorEnum behavior);
 
-  void namespaceExists(String id, String delimiter) throws LanceNamespaceException;
+  void namespaceExists(String namespaceId, String delimiter) throws LanceNamespaceException;
 }