Sample :
scala> Frame.show()
|year| make|model| comment|blank|
|2012|Tesla| S| No comment| R|
|1997| Ford| E350|Go get one now th...| L|
|2015|Chevy| Volt| Try| M|
to
<item>
<'year'>2012<'/year'>
<'make'>Tesla<'/make'>
<'model'>S<'/mode'>
</item>
The simplest approach is to use XML writer from spark-xml
:
val path: String = ???
df.write.format("com.databricks.spark.xml")
.option("rootTag", "items")
.option("rowTag", "item")
.save(path)
If for some reason it doesn't fit your needs you can dump records individually and saveAsTextFile
:
def dumpXML(row: Row): String = ???
df.rdd.map(dumpXML).saveAsTextFile(path)
You can add root element using for example mapPartitions
.
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