xunliu commented on code in PR #6842:
URL: https://github.com/apache/gravitino/pull/6842#discussion_r2034289436


##########
server-common/src/main/java/org/apache/gravitino/server/authorization/expression/AuthorizationExpressionExecutor.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.server.authorization.expression;
+
+import java.util.Map;
+import org.apache.gravitino.server.authorization.GravitinoAuthorizer;
+
+/** Authorization through expressions. */
+public class AuthorizationExpressionExecutor {
+
+  /**
+   * Use {@link AuthorizationExpressionConverter} to convert the authorization 
expression into an
+   * OGNL expression, and then call {@link GravitinoAuthorizer} to perform 
permission verification.
+   *
+   * @param expression authorization expression
+   */
+  public AuthorizationExpressionExecutor(String expression) {}
+
+  public boolean authorize(Map<String, Long> resourceIdMap) {

Review Comment:
   maybe variable name `resourceIds` better `resourceIdMap`?
   ```
   public boolean authorize(Map<String/*metadata name*/, Long/*metadata id*/> 
resourceIds) {
   ```
   
   Please add a comment to the authorize function.
   



##########
server-common/src/main/java/org/apache/gravitino/server/http/RequestContext.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.server.http;
+
+/**
+ * RequestContext is used to store the context information of an HTTP request, 
including the userId.
+ */
+public interface RequestContext {
+
+  String getUserId();
+
+  void setUserId(String userId);

Review Comment:
   @jerqi please help review this, thanks.



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