/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "Ant" and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.taskdefs;
import java.util.Vector;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.input.InputRequest;
import org.apache.tools.ant.input.MultipleChoiceInputRequest;
import org.apache.tools.ant.util.StringUtils;
/**
* Reads an input line from the console.
*
* @author <a href="mailto:usch@usch.net">Ulrich Schmidt</a>
* @author Stefan Bodewig
*
* @since Ant 1.5
*
* @ant.task category="control"
*/
public class Input extends Task {
private String validargs = null;
private String message = "";
private String addproperty = null;
private String defaultvalue = null;
/**
* Defines valid input parameters as comma separated strings. If set, input
* task will reject any input not defined as accepted and requires the user
* to reenter it. Validargs are case sensitive. If you want 'a' and 'A' to
* be accepted you need to define both values as accepted arguments.
*
* @param validargs A comma separated String defining valid input args.
*/
public void setValidargs (String validargs) {
this.validargs = validargs;
}
/**
* Defines the name of a property to be created from input. Behaviour is
* according to property task which means that existing properties
* cannot be overridden.
*
* @param addproperty Name for the property to be created from input
*/
public void setAddproperty (String addproperty) {
this.addproperty = addproperty;
}
/**
* Sets the Message which gets displayed to the user during the build run.
* @param message The message to be displayed.
*/
public void setMessage (String message) {
this.message = message;
}
/**
* Defines the default value of the property to be created from input.
* Property value will be set to default if not input is received.
*
* @param defaultvalue Default value for the property if no input
* is received
*/
public void setDefaultvalue (String defaultvalue) {
this.defaultvalue = defaultvalue;
}
/**
* Set a multiline message.
* @param msg The message to be displayed.
*/
public void addText(String msg) {
message += getProject().replaceProperties(msg);
}
/**
* No arg constructor.
*/
public Input () {
}
/**
* Actual method executed by ant.
* @throws BuildException
*/
public void execute () throws BuildException {
if (addproperty != null
&& getProject().getProperty(addproperty) != null) {
log("skipping " + getTaskName() + " as property " + addproperty
+ " has already been set.");
return;
}
InputRequest request = null;
if (validargs != null) {
Vector accept = StringUtils.split(validargs, ',');
request = new MultipleChoiceInputRequest(message, accept);
} else {
request = new InputRequest(message);
}
getProject().getInputHandler().handleInput(request);
String value = request.getInput();
if ((value == null || value.trim().length() == 0)
&& defaultvalue != null) {
value = defaultvalue;
}
if (addproperty != null && value != null) {
getProject().setNewProperty(addproperty, value);
}
}
}