Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/9313#discussion_r43347726
--- Diff: python/pyspark/context.py ---
@@ -806,6 +806,24 @@ def addPyFile(self, path):
import importlib
importlib.invalidate_caches()
+ def addJar(self, path):
+ """
+ Adds a JAR dependency for all tasks to be executed on this
SparkContext in the future.
+ The `path` passed can be either a local file, a file in HDFS (or
other Hadoop-supported
+ filesystems), an HTTP, HTTPS or FTP URI, or local:/path for a file
on every worker node.
+ """
+ self._jsc.sc().addJar(path)
+ self._jvm.PythonUtils.updatePrimaryClassLoader(self._jsc)
+
+ def _loadClass(self, className):
+ """
+ .. note:: Experimental
+
+ Loads a JVM class using the MutableClass loader used by spark.
+ This function exists because Py4J uses a different class loader.
+ """
+
self._jvm.java.lang.Thread.currentThread().getContextClassLoader().loadClass(className)
--- End diff --
In Utils.getContextOrSparkClassLoader, it seems like the context
classloader can sometimes be null. Is that possible here as well?
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