Package org.apache.tools.ant.input

Class DefaultInputHandler

java.lang.Object

org.apache.tools.ant.input.DefaultInputHandler

All Implemented Interfaces:

InputHandler

Direct Known Subclasses:

GreedyInputHandler, SecureInputHandler

public class DefaultInputHandler
extends Object
implements InputHandler

Prompts on System.err, reads input from System.in

Since:

Ant 1.5

Constructor Summary

Constructors

Constructor	Description
DefaultInputHandler()	Empty no-arg constructor

Method Summary

Modifier and Type	Method	Description
protected InputStream	getInputStream()	Returns the input stream from which the user input should be read.
protected String	getPrompt(InputRequest request)	Constructs user prompt from a request.
void	handleInput(InputRequest request)	Prompts and requests input.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultInputHandler

public DefaultInputHandler()

Empty no-arg constructor

Method Details

handleInput

public void handleInput(InputRequest request)
                 throws BuildException

Prompts and requests input. May loop until a valid input has been entered.

Specified by:

handleInput in interface InputHandler

Parameters:

request - the request to handle

Throws:

BuildException - if not possible to read from console

getPrompt

protected String getPrompt(InputRequest request)

Constructs user prompt from a request.

This implementation adds (choice1,choice2,choice3,...) to the prompt for MultipleChoiceInputRequests.

Parameters:

request - the request to construct the prompt for. Must not be null.

Returns:

the prompt to ask the user

getInputStream

protected InputStream getInputStream()

Returns the input stream from which the user input should be read.

Returns:

the input stream from which the user input should be read.