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org.codehaus.groovy.grails.cli
[Java] Class CommandLineHelper

java.lang.Object
  org.codehaus.groovy.grails.cli.CommandLineHelper

public class CommandLineHelper
extends java.lang.Object

Utility methods for use on the command line, including method to accept user input etc.

Authors:
Graeme Rocher
Since:
1.2

Constructor Summary
CommandLineHelper()

CommandLineHelper(java.io.PrintStream out)

@deprecated Use no-args constructor
CommandLineHelper(java.io.InputStream input, java.io.PrintStream out)

@deprecated Use no-args constructor
 
Method Summary
java.lang.String userInput(java.lang.String message)

Replacement for AntBuilder.input() to eliminate dependency of GrailsScriptRunner on the Ant libraries.

java.lang.String userInput(java.lang.String message, java.lang.String[] validResponses)

Replacement for AntBuilder.input() to eliminate dependency of GrailsScriptRunner on the Ant libraries.

 
Methods inherited from class java.lang.Object
java.lang.Object#wait(), java.lang.Object#wait(long), java.lang.Object#wait(long, int), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()
 

Constructor Detail

CommandLineHelper

public CommandLineHelper()

CommandLineHelper

@SuppressWarnings("unused")
@Deprecated
public CommandLineHelper(java.io.PrintStream out)
deprecated:
Use no-args constructor

CommandLineHelper

@SuppressWarnings("unused")
@Deprecated
public CommandLineHelper(java.io.InputStream input, java.io.PrintStream out)
deprecated:
Use no-args constructor

 
Method Detail

userInput

public java.lang.String userInput(java.lang.String message)
Replacement for AntBuilder.input() to eliminate dependency of GrailsScriptRunner on the Ant libraries. Prints a message and returns whatever the user enters (once they press <return>).
Parameters:
message - The message/question to display.
Returns:
The line of text entered by the user. May be a blank string.

userInput

public java.lang.String userInput(java.lang.String message, java.lang.String[] validResponses)
Replacement for AntBuilder.input() to eliminate dependency of GrailsScriptRunner on the Ant libraries. Prints a message and list of valid responses, then returns whatever the user enters (once they press <return>). If the user enters something that is not in the array of valid responses, the message is displayed again and the method waits for more input. It will display the message a maximum of three times before it gives up and returns null.
Parameters:
message - The message/question to display.
validResponses - An array of responses that the user is allowed to enter. Displayed after the message.
Returns:
The line of text entered by the user, or null if the user never entered a valid string.

 

Groovy Documentation