Functional output stream

gistfile1.txt

/**
 * Used for reading/writing to database, files, etc.
 * Code From the book "Beginning Scala"
 * http://www.amazon.com/Beginning-Scala-David-Pollak/dp/1430219890
 *  http://stackoverflow.com/a/5218279
 */
def using[A <: {def close(): Unit}, B](param: A)(f: A => B): B =
try { f(param) } finally { param.close() }

def writeToFile(fileName:String, data:String) = 
  using (new FileWriter(fileName)) {
    fileWriter => fileWriter.write(data)
  }
  
def appendToFile(fileName:String, textData:String) =
  using (new FileWriter(fileName, true)){ 
    fileWriter => using (new PrintWriter(fileWriter)) {
      printWriter => printWriter.println(textData)
    }
  }