jerryshao commented on code in PR #14627:
URL: https://github.com/apache/gravitino/pull/14627#discussion_r4480719289


##########
core/src/main/java/org/apache/gravitino/semantic/SemanticModelSource.java:
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@@ -0,0 +1,51 @@
+/*
+ * 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.semantic;
+
+import com.google.common.base.Preconditions;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import org.apache.gravitino.Entity;
+
+/** A dataset's source resolved during caller-authorized definition 
validation. */
+@Getter
+@EqualsAndHashCode
+public final class SemanticModelSource {
+  private final String datasetName;
+  private final Entity.EntityType sourceType;
+  private final long sourceId;
+
+  /**
+   * Creates a resolved source association.
+   *
+   * @param datasetName The exact dataset name in the definition.
+   * @param sourceType TABLE or VIEW.
+   * @param sourceId The registered Gravitino entity ID.
+   */
+  public SemanticModelSource(String datasetName, Entity.EntityType sourceType, 
long sourceId) {
+    Preconditions.checkArgument(
+        datasetName != null && !datasetName.isEmpty(), "Dataset name is 
required");

Review Comment:
   Using StringUtils to check the string.



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