spark JsonDataSourceV2 源码

2022-10-20
浏览 (169)

spark JsonDataSourceV2 代码

文件路径：/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/json/JsonDataSourceV2.scala

/*
 * 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.v2.json

import org.apache.spark.sql.connector.catalog.Table
import org.apache.spark.sql.execution.datasources._
import org.apache.spark.sql.execution.datasources.json.JsonFileFormat
import org.apache.spark.sql.execution.datasources.v2._
import org.apache.spark.sql.types.StructType
import org.apache.spark.sql.util.CaseInsensitiveStringMap

class JsonDataSourceV2 extends FileDataSourceV2 {

  override def fallbackFileFormat: Class[_ <: FileFormat] = classOf[JsonFileFormat]

  override def shortName(): String = "json"

  override def getTable(options: CaseInsensitiveStringMap): Table = {
    val paths = getPaths(options)
    val tableName = getTableName(options, paths)
    val optionsWithoutPaths = getOptionsWithoutPaths(options)
    JsonTable(tableName, sparkSession, optionsWithoutPaths, paths, None, fallbackFileFormat)
  }

  override def getTable(options: CaseInsensitiveStringMap, schema: StructType): Table = {
    val paths = getPaths(options)
    val tableName = getTableName(options, paths)
    val optionsWithoutPaths = getOptionsWithoutPaths(options)
    JsonTable(tableName, sparkSession, optionsWithoutPaths, paths, Some(schema), fallbackFileFormat)
  }
}

相关信息

spark 源码目录

相关文章

spark JsonPartitionReaderFactory 源码

spark JsonScan 源码

spark JsonScanBuilder 源码

spark JsonTable 源码

spark JsonWrite 源码

0 赞

所属分类： 前端技术
本文标签：
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/1cbc0de441ce4395b34eab35ac47edba

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙初识ArkTS语言
6、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
7、 flink kafka connector scan.startup.mode 的几个选项
8、 golang
9、 openharmony
10、 Vue中input框自动聚焦

Loading...