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[SPARK-26137][CORE] Use Java system property "file.separator" inste… #23102

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[SPARK-26137][CORE] Use Java system property "file.separator" inste… #23102

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49ce5a8
[SPARK-26137][CORE] Use Java system property "file.separator" instead…
Nov 21, 2018
24c05e3
[SPARK-26137][CORE] Use File.separator instead of System.getProperty(…
Nov 26, 2018
bfabd4f
[SPARK-26137][CORE] Add unit test
Nov 26, 2018
4ab68f0
[SPARK-26137][CORE] Add missing blank line to comply with style
Nov 26, 2018
e1e97aa
[SPARK-26137][CORE] Use File.separatorChar instead of File.separator
Nov 27, 2018
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4 changes: 3 additions & 1 deletion core/src/main/scala/org/apache/spark/deploy/DependencyUtils.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ package org.apache.spark.deploy

import java.io.File
import java.net.URI
import java.util.regex.Pattern
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(Remove this import)

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Done


import org.apache.commons.lang3.StringUtils
import org.apache.hadoop.conf.Configuration
Expand Down Expand Up @@ -61,11 +62,12 @@ private[deploy] object DependencyUtils extends Logging {
hadoopConf: Configuration,
secMgr: SecurityManager): String = {
val targetDir = Utils.createTempDir()
val fileSeparator = Pattern.quote(System.getProperty("file.separator"))
Option(jars)
.map {
resolveGlobPaths(_, hadoopConf)
.split(",")
.filterNot(_.contains(userJar.split("/").last))
.filterNot(_.contains(userJar.split(fileSeparator).last))
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Just split on File.separator, not a regex.

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Beyond the original purpose of this PR, is it better to move userJar.split(fileSeparator).last before line 66? This is because userJar is not changed in map { ... }.

.mkString(",")
}
.filterNot(_ == "")
Expand Down