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Author: linliu-code

hudi-client/hudi-spark-client/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/SparkBasicSchemaEvolution.scala

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+/*
+ * 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.spark.sql.execution.datasources.parquet
+
+import org.apache.spark.sql.types.StructType
+
+
+/**
+ * Intended to be used just with HoodieSparkParquetReader to avoid any java/scala issues
+ */
+class SparkBasicSchemaEvolution(fileSchema: StructType,
+                                requiredSchema: StructType,
+                                sessionLocalTimeZone: String) {
+
+  val (implicitTypeChangeInfo, sparkRequestSchema) = HoodieParquetFileFormatHelper.buildImplicitSchemaChangeInfo(fileSchema, requiredSchema)
+
+  def getRequestSchema: StructType = {
+    if (implicitTypeChangeInfo.isEmpty) {
+      requiredSchema
+    } else {
+      sparkRequestSchema
+    }
+  }
+}