Scala

GitHub: https://github.com/covid19datahub/Scala

Import Data from the Hub

Download the data from the here.

For Scala you can use following singleton object Fetcher. It uses components java.net.URL from Java Platform SE and scala.io.Source from Scala Standard Library.

The same problem as in Python example occurs here, header User-Agent needs to be present, see similar issue in Java.

// file: covid19datahub.scala

object COVID19Datahub {
  // method to fetch data
  def fetch(): (List[Array[String]],Array[String]) = {
    // download
    val url  = new java.net.URL("https://storage.covid19datahub.io/data-1.csv")
    val conn = url.openConnection
    conn.setRequestProperty("User-Agent","Mozilla/5.0")
    
    // parse
    val text  = scala.io.Source.fromInputStream(conn.getInputStream).getLines
    val lines = text.map(line => line.split(",").map(_.trim)).toList
    
    // split header and data
    val header = lines.head
    val data   = lines.slice(1,lines.size)
    
    // return
    (data,header)
  }
}

The object can be used in following way

// file: main.scala

import covid19datahub.COVID19Datahub

object MainObject {
  def main(args: Array[String]): Unit = {
    val (data,header) = COVID19Datahub.fetch
    
    // prints first and last element
    //data(0).foreach(println)
    //data(data.length-1).foreach(println)
  }
}

Terms of Use

We have invested a lot of time and effort in creating COVID-19 Data Hub, please:

• cite Guidotti and Ardia (2020) when using COVID-19 Data Hub.
• place the URL https://covid19datahub.io in a footnote to help others find COVID-19 Data Hub.
• you assume full risk for the use of COVID-19 Data Hub. We try our best to guarantee the data quality and consistency and the continuous filling of the Data Hub. However, it is free software and comes with ABSOLUTELY NO WARRANTY. Reliance on COVID-19 Data Hub for medical guidance or use of COVID-19 Data Hub in commerce is strictly prohibited.

License: GPL-3.

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