[apache#5633] remove unnecessary classes from the storage module

core/src/main/java/org/apache/gravitino/EntityStore.java

@@ -40,14 +40,6 @@ public interface EntityStore extends Closeable {
    */
   void initialize(Config config) throws RuntimeException;
 
-  /**
-   * Set the {@link EntitySerDe} for the entity store. {@link EntitySerDe} will be used to serialize
-   * and deserialize the entities to the target format, and vice versa.
-   *
-   * @param entitySerDe the entity serde to set
-   */
-  void setSerDe(EntitySerDe entitySerDe);
-
   /**
    * List all the entities with the specified {@link org.apache.gravitino.Namespace}, and
    * deserialize them into the specified {@link Entity} object.

core/src/main/java/org/apache/gravitino/storage/RandomIdGenerator.java

@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.gravitino.storage;
+
+import java.util.UUID;
+
+/**
+ * Random id generator. This is used to generate random ids for entities. Please see {@link
+ * org.apache.gravitino.meta.BaseMetalake#ID} for more details.
+ */
+public class RandomIdGenerator implements IdGenerator {
+
+  public static final RandomIdGenerator INSTANCE = new RandomIdGenerator();
+
+  public static final long MAX_ID = 0x7fffffffffffffffL;
+
+  @Override
+  public long nextId() {
+    // Make sure this is a positive number.
+    return UUID.randomUUID().getLeastSignificantBits() & MAX_ID;
+  }
+}

core/src/main/java/org/apache/gravitino/storage/relational/RelationalEntityStore.java

@@ -28,7 +28,6 @@
 import org.apache.gravitino.Configs;
 import org.apache.gravitino.Entity;
 import org.apache.gravitino.EntityAlreadyExistsException;
-import org.apache.gravitino.EntitySerDe;
 import org.apache.gravitino.EntityStore;
 import org.apache.gravitino.HasIdentifier;
 import org.apache.gravitino.MetadataObject;
@@ -81,11 +80,6 @@ private static RelationalBackend createRelationalEntityBackend(Config config) {
     }
   }
 
-  @Override
-  public void setSerDe(EntitySerDe entitySerDe) {
-    throw new UnsupportedOperationException("Unsupported operation in relational entity store.");
-  }
-
   @Override
   public <E extends Entity & HasIdentifier> List<E> list(
       Namespace namespace, Class<E> type, Entity.EntityType entityType) throws IOException {

core/src/test/java/org/apache/gravitino/authorization/TestAccessControlManagerForPermissions.java

@@ -156,7 +156,6 @@ public static void setUp() throws Exception {
 
     entityStore = new TestMemoryEntityStore.InMemoryEntityStore();
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     entityStore.put(metalakeEntity, true);
     entityStore.put(userEntity, true);

core/src/test/java/org/apache/gravitino/catalog/TestCatalogManager.java

@@ -80,7 +80,6 @@ public static void setUp() throws IOException {
 
     entityStore = new TestMemoryEntityStore.InMemoryEntityStore();
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     entityStore.put(metalakeEntity, true);
 

core/src/test/java/org/apache/gravitino/catalog/TestCatalogNormalizeDispatcher.java

@@ -64,7 +64,6 @@ public static void setUp() throws IOException {
 
     entityStore = new TestMemoryEntityStore.InMemoryEntityStore();
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     entityStore.put(metalakeEntity, true);
 

core/src/test/java/org/apache/gravitino/catalog/TestOperationDispatcher.java

@@ -70,7 +70,6 @@ public static void setUp() throws IOException {
 
     entityStore = spy(new TestMemoryEntityStore.InMemoryEntityStore());
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     BaseMetalake metalakeEntity =
         BaseMetalake.builder()

core/src/test/java/org/apache/gravitino/metalake/TestMetalakeManager.java

@@ -55,7 +55,6 @@ public static void setUp() {
 
     entityStore = new TestMemoryEntityStore.InMemoryEntityStore();
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     metalakeManager = new MetalakeManager(entityStore, new RandomIdGenerator());
   }

core/src/test/java/org/apache/gravitino/metalake/TestMetalakeNormalizeDispatcher.java

@@ -42,7 +42,6 @@ public static void setUp() {
 
     entityStore = new TestMemoryEntityStore.InMemoryEntityStore();
     entityStore.initialize(config);
-    entityStore.setSerDe(null);
 
     MetalakeManager metalakeManager = new MetalakeManager(entityStore, new RandomIdGenerator());
     metalakeNormalizeDispatcher = new MetalakeNormalizeDispatcher(metalakeManager);

core/src/test/java/org/apache/gravitino/storage/memory/TestMemoryEntityStore.java

@@ -32,7 +32,6 @@
 import org.apache.gravitino.Entity;
 import org.apache.gravitino.Entity.EntityType;
 import org.apache.gravitino.EntityAlreadyExistsException;
-import org.apache.gravitino.EntitySerDe;
 import org.apache.gravitino.EntityStore;
 import org.apache.gravitino.HasIdentifier;
 import org.apache.gravitino.Metalake;
@@ -77,9 +76,6 @@ public void clear() {
     @Override
     public void initialize(Config config) throws RuntimeException {}
 
-    @Override
-    public void setSerDe(EntitySerDe entitySerDe) {}
-
     @Override
     public <E extends Entity & HasIdentifier> List<E> list(
         Namespace namespace, Class<E> cl, EntityType entityType) throws IOException {
@@ -250,7 +246,6 @@ public void testEntityStoreAndRetrieve() throws Exception {
 
     InMemoryEntityStore store = new InMemoryEntityStore();
     store.initialize(Mockito.mock(Config.class));
-    store.setSerDe(Mockito.mock(EntitySerDe.class));
 
     store.put(metalake);
     store.put(catalog);