Github user tellison commented on a diff in the pull request:
https://github.com/apache/spark/pull/7043#discussion_r33361980
--- Diff: core/src/main/scala/org/apache/spark/SSLOptions.scala ---
@@ -102,6 +106,36 @@ private[spark] case class SSLOptions(
}
}
+ /*
+ * The supportedAlgorithms set is a subset of the enabledAlgorithms that
+ * are supported by the current Java security provider for this protocol.
+ */
+ private val supportedAlgorithms: Set[String] = {
+ var context: Option[SSLContext] = Some(SSLContext.getDefault)
--- End diff --
All you are missing is my inexperience in Scala! So how about something
like this?
```scala
var context: SSLContext = null
try {
context = SSLContext.getInstance(protocol.orNull)
context.init(null, null, null)
} catch {
case npe: NullPointerException =>
logDebug("No SSL protocol specified")
context = SSLContext.getDefault
case nsa: NoSuchAlgorithmException =>
logDebug(s"No support for requested SSL protocol ${protocol.get}")
context = SSLContext.getDefault
}
val providerAlgorithms =
context.getServerSocketFactory.getSupportedCipherSuites.toSet
```
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