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 `MultipleChoiceInputRequest`s.

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.