Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/5514#discussion_r28446291
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -443,61 +461,55 @@ private[spark] object SparkConf extends Logging {
}
/**
- * Translate the configuration key if it is deprecated and has a
replacement, otherwise just
- * returns the provided key.
- *
- * @param userKey Configuration key from the user / caller.
- * @param warn Whether to print a warning if the key is deprecated.
Warnings will be printed
- * only once for each key.
+ * Looks for available deprecated keys for the given config option, and
return the first
+ * value available.
*/
- private def translateConfKey(userKey: String, warn: Boolean = false):
String = {
- deprecatedConfigs.get(userKey)
- .map { deprecatedKey =>
- if (warn) {
- deprecatedKey.warn()
- }
- deprecatedKey.newName.getOrElse(userKey)
- }.getOrElse(userKey)
+ def getDeprecatedConfig(key: String, conf: SparkConf): Option[String] = {
+ configsWithAlternatives.get(key).flatMap(
+ _.collectFirst {
+ case x if conf.contains(x.key) =>
+ val value = conf.get(x.key)
+ x.translation.map(_(value)).getOrElse(value)
+ })
--- End diff --
how about
```
configsWithAlternatives.get(key).flatMap { alternatives =>
alternatives.collectFirst { case alt if conf.contains(alt.key) =>
alt.translate(conf.get(alt.key))
}
}
```
and then define a `translate` method in `AlternateConfig`
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