1 package com.beust.jcommander.internal; 2 3 import com.beust.jcommander.ParameterException; 4 5 import java.io.PrintWriter; 6 import java.lang.reflect.Method; 7 8 public class JDK6Console implements Console { 9 10 private Object console; 11 12 private PrintWriter writer; 13 14 public JDK6Console(Object console) throws Exception { 15 this.console = console; 16 Method writerMethod = console.getClass().getDeclaredMethod("writer", new Class<?>[0]); 17 writer = (PrintWriter) writerMethod.invoke(console, new Object[0]); 18 } 19 20 public void print(String msg) { 21 writer.print(msg); 22 } 23 24 public void println(String msg) { 25 writer.println(msg); 26 } 27 28 public char[] readPassword(boolean echoInput) { 29 try { 30 writer.flush(); 31 Method method; 32 if (echoInput) { 33 method = console.getClass().getDeclaredMethod("readLine", new Class<?>[0]); 34 return ((String) method.invoke(console, new Object[0])).toCharArray(); 35 } else { 36 method = console.getClass().getDeclaredMethod("readPassword", new Class<?>[0]); 37 return (char[]) method.invoke(console, new Object[0]); 38 } 39 } 40 catch (Exception e) { 41 throw new ParameterException(e); 42 } 43 } 44 45 }
