//I get an Object from Hbase here
val objectRDD : RDD[HbaseRecord] = ...

//I convert the RDD[HbaseRecord] into RDD[Row]
val rowRDD : RDD[Row] = objectRDD.map(
    hbaseRecord => {

        // Simple types

        val uuid : String = hbaseRecord.uuid
        val timestamp : String = hbaseRecord.timestamp


        // Maps

        val name = Row(hbaseRecord.nameMap.firstName.getOrElse(""),
            hbaseRecord.nameMap.middleName.getOrElse(""),
            hbaseRecord.nameMap.lastName.getOrElse(""))


        // Parsing maps of maps

        val contactsMap = hbaseRecord.contactsMap

        val homeContactMap = contactsMap.get("HOME")
        val homeContact = Row(homeContactMap.contactType,
            homeContactMap.areaCode,
            homeContactMap.number)

        val workContactMap = contactsMap.get("WORK")
        val workContact = Row(workContactMap.contactType,
            workContactMap.areaCode,
            workContactMap.number)

        val contacts = Row(homeContact,workContact)

        Row(uuid, timestamp, name, contacts)

    }
)


//Here I define the schema
   val schema = new StructType()
                    .add("uuid",StringType)
                    .add("timestamp", StringType)
                    .add("name", new StructType()
                            .add("firstName",StringType)
                            .add("middleName",StringType)
                            .add("lastName",StringType)
                    .add("contacts", new StructType(
                                   Array(
                                   StructField("contactType", StringType),
                                   StructField("areaCode", StringType),
                                   StructField("number", StringType)
                    )))


//Now I try to create a Dataframe using the RDD[Row] and the schema
val dataFrame = sqlContext.createDataFrame(rowRDD , schema)