add pre event

core/src/main/java/org/apache/gravitino/listener/api/event/PreEvent.java

@@ -0,0 +1,28 @@
+/*
+ *  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.listener.api.event;
+
+import org.apache.gravitino.NameIdentifier;
+
+public abstract class PreEvent extends Event {
+  protected PreEvent(String user, NameIdentifier identifier) {
+    super(user, identifier);
+  }
+}

iceberg/iceberg-rest-server/src/main/java/org/apache/gravitino/listener/api/event/IcebergCreateTablePreEvent.java

@@ -0,0 +1,38 @@
+/*
+ *  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.listener.api.event;
+
+import org.apache.gravitino.NameIdentifier;
+import org.apache.iceberg.rest.requests.CreateTableRequest;
+
+public class IcebergCreateTablePreEvent extends IcebergPreEvent {
+
+  private CreateTableRequest createTableRequest;
+
+  public IcebergCreateTablePreEvent(
+      String user, NameIdentifier resourceIdentifier, CreateTableRequest createTableRequest) {
+    super(user, resourceIdentifier);
+    this.createTableRequest = createTableRequest;
+  }
+
+  public CreateTableRequest createTableRequest() {
+    return createTableRequest;
+  }
+}

iceberg/iceberg-rest-server/src/main/java/org/apache/gravitino/listener/api/event/IcebergPreEvent.java

@@ -0,0 +1,28 @@
+/*
+ *  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.listener.api.event;
+
+import org.apache.gravitino.NameIdentifier;
+
+public abstract class IcebergPreEvent extends PreEvent {
+  public IcebergPreEvent(String user, NameIdentifier resourceIdentifier) {
+    super(user, resourceIdentifier);
+  }
+}

iceberg/iceberg-rest-server/src/main/java/org/apache/gravitino/listener/api/event/IcebergUpdateTablePreEvent.java

@@ -0,0 +1,37 @@
+/*
+ *  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.listener.api.event;
+
+import org.apache.gravitino.NameIdentifier;
+import org.apache.iceberg.rest.requests.UpdateTableRequest;
+
+public class IcebergUpdateTablePreEvent extends IcebergPreEvent {
+  private UpdateTableRequest updateTableRequest;
+
+  public IcebergUpdateTablePreEvent(
+      String user, NameIdentifier resourceIdentifier, UpdateTableRequest updateTableRequest) {
+    super(user, resourceIdentifier);
+    this.updateTableRequest = updateTableRequest;
+  }
+
+  public UpdateTableRequest updateTableRequest() {
+    return updateTableRequest;
+  }
+}