Package edu.uiuc.ncsa.security.util.configuration

Class CLITools

java.lang.Object

edu.uiuc.ncsa.security.util.configuration.CLITools

public class CLITools
extends Object

Tools for creating command line clients

Created by Jeff Gaynor
on Jun 25, 2010 at 2:15:40 PM

Constructor Summary

Constructors

Constructor	Description
CLITools()

Method Summary

Modifier and Type	Method	Description
static OutputStream	getOutputStream()
protected static PrintWriter	getPrintWriter()
static int	listChoose(String head, Object[] options)	This displays the head then each of the list choices which are numbered.
static int	listChoose(String head, Object[] options, int defaultChoice)
static int	listChoose(String head, List options, int defaultChoice)	Convenience method to give a list of choices from a set of options.
static String	prompt(String prompt, Object defaultValue)	A utility for getting user input.
static void	say(Object obj, String x)	Very useful for debugging.
static void	say(String x)
static void	setOutputStream(OutputStream outputStream)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CLITools

public CLITools()

Method Detail

prompt

public static String prompt(String prompt,
                            Object defaultValue)

A utility for getting user input. For command line clients. This display the first argument and encloses the second in parentheses. If the user enters a value that is returned, otherwise the second argument is.

Parameters:

prompt -

defaultValue -

Returns:

getOutputStream

public static OutputStream getOutputStream()

setOutputStream

public static void setOutputStream(OutputStream outputStream)

getPrintWriter

protected static PrintWriter getPrintWriter()

say

public static void say(String x)

say

public static void say(Object obj,
                       String x)

Very useful for debugging. Supply the local "this" to get the name of the object plus the current time.

Parameters:

obj -

x -

listChoose

public static int listChoose(String head,
                             Object[] options)

This displays the head then each of the list choices which are numbered. The user enters the choice which is converted to an integer then returned. This is perfect for switch statements, e.g. Each option displayed is just the toString method for the object.

Parameters:

head -

options -

Returns:

listChoose

public static int listChoose(String head,
                             Object[] options,
                             int defaultChoice)

listChoose

public static int listChoose(String head,
                             List options,
                             int defaultChoice)

Convenience method to give a list of choices from a set of options.

Parameters:

head -

options -

Returns: