Created
August 2, 2014 15:05
Save Case Class as TSV On Spark
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implicit class ProductRDD[T <: Product](rdd: RDD[T]) { | |
/* Saves a RDD of Tuples into a TSV. | |
* Ex: Employee(emp_id = 123, Name(first="Bob",last="Smith")) => "123\tBob\tSmith" | |
*/ | |
def saveAsTsv(path: String) { | |
rdd.map(p => p.productIterator.flatMap { | |
case a: Product => a.productIterator //flattens nested case classes | |
case b => Seq(b) | |
}.mkString("\t")) | |
.saveAsTextFile(path) | |
} | |
} |
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