[GitHub] [hudi] pengzhiwei2018 commented on a change in pull request #2485: [HUDI-1109] Support Spark Structured Streaming read from Hudi table

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pengzhiwei2018 commented on a change in pull request #2485:
URL: https://github.com/apache/hudi/pull/2485#discussion_r565127355



##########
File path: hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/streaming/HoodieSource.scala
##########
@@ -0,0 +1,185 @@
+/*
+ * 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.hudi.streaming
+
+import java.io.{BufferedWriter, InputStream, InputStreamReader, OutputStream, OutputStreamWriter}
+import java.nio.charset.StandardCharsets
+import java.util.Date
+
+import org.apache.commons.io.IOUtils
+import org.apache.hadoop.fs.Path
+import org.apache.hudi.{DataSourceReadOptions, IncrementalRelation, MergeOnReadIncrementalRelation}
+import org.apache.hudi.common.model.HoodieTableType
+import org.apache.hudi.common.table.timeline.HoodieActiveTimeline
+import org.apache.hudi.common.table.{HoodieTableMetaClient, TableSchemaResolver}
+import org.apache.hudi.common.util.TablePathUtils
+import org.apache.spark.sql.hudi.streaming.HoodieSource.VERSION
+import org.apache.spark.sql.hudi.streaming.HoodieSourceOffset.INIT_OFFSET
+import org.apache.spark.internal.Logging
+import org.apache.spark.rdd.RDD
+import org.apache.spark.sql.avro.SchemaConverters
+import org.apache.spark.sql.catalyst.InternalRow
+import org.apache.spark.sql.catalyst.encoders.RowEncoder
+import org.apache.spark.sql.execution.streaming.{HDFSMetadataLog, Offset, Source}
+import org.apache.spark.sql.sources.Filter
+import org.apache.spark.sql.types.StructType
+import org.apache.spark.sql.{DataFrame, SQLContext}
+
+/**
+  * Struct Stream Source for Hudi.
+  * @param sqlContext
+  * @param metadataPath
+  * @param schemaOption
+  * @param parameters
+  */
+class HoodieSource(

Review comment:
       Thanks for your suggestion. Maybe HoodieStreamSource is suitable.




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