spark WalkedTypePath 源码
spark WalkedTypePath 代码
文件路径：/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/WalkedTypePath.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.catalyst
/**
* This class records the paths the serializer and deserializer walk through to reach current path.
* Note that this class adds new path in prior to recorded paths so it maintains
* the paths as reverse order.
*/
case class WalkedTypePath(private val walkedPaths: Seq[String] = Nil) {
def recordRoot(className: String): WalkedTypePath =
newInstance(s"""- root class: "$className"""")
def recordOption(className: String): WalkedTypePath =
newInstance(s"""- option value class: "$className"""")
def recordArray(elementClassName: String): WalkedTypePath =
newInstance(s"""- array element class: "$elementClassName"""")
def recordMap(keyClassName: String, valueClassName: String): WalkedTypePath = {
newInstance(s"""- map key class: "$keyClassName"""" +
s""", value class: "$valueClassName"""")
}
def recordKeyForMap(keyClassName: String): WalkedTypePath =
newInstance(s"""- map key class: "$keyClassName"""")
def recordValueForMap(valueClassName: String): WalkedTypePath =
newInstance(s"""- map value class: "$valueClassName"""")
def recordField(className: String, fieldName: String): WalkedTypePath =
newInstance(s"""- field (class: "$className", name: "$fieldName")""")
override def toString: String = {
walkedPaths.mkString("\n")
}
def getPaths: Seq[String] = walkedPaths
private def newInstance(newRecord: String): WalkedTypePath =
WalkedTypePath(newRecord +: walkedPaths)
}
相关信息
相关文章
spark CatalystTypeConverters 源码
0
赞
- 所属分类： 前端技术
- 本文标签：
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦