Java sockets test

SocketServer.groovy

/* 
//client
import java.io.*
import java.net.*

def sentence = 'i am testing this'
def clientSocket = new Socket("localhost", 6789)

try {
    (new DataOutputStream(
        clientSocket.getOutputStream()
            )).writeBytes(sentence + '\n') //write text to socket
    
    def returnVal = 
        (new BufferedReader
            (new InputStreamReader(
                clientSocket.getInputStream()
                    ))).readLine() //read response
           
    println returnVal
} catch(Exception ex) {
  println 'error ' + ex
}
clientSocket.close()
*/

import java.io.*
import java.net.*

def welcomeSocket = new ServerSocket(6789)

while(true) {
  def connectionSocket = welcomeSocket.accept()
	println 'accepted connection'

	def inputVal = 
		(new BufferedReader(
			new InputStreamReader(
				connectionSocket.getInputStream()
					))).readLine()

	(new DataOutputStream(
		connectionSocket.getOutputStream()
			)).writeBytes(  inputVal.toUpperCase() + '\n'  )
			
	println 'done processing loop'
}