com.topologi.diffx.util.CommandLine Maven / Gradle / Ivy
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/*
* This file is part of the DiffX library.
*
* For licensing information please see the file license.txt included in the release.
* A copy of this licence can also be found at
* http://www.opensource.org/licenses/artistic-license-2.0.php
*/
package com.topologi.diffx.util;
/**
* A set of utility methods to help with command-line interface.
*
* The methods in this class would typically be used in the main(String[])
* method of a class.
*
* @author Christophe Lauret
* @version 17 May 2005
*/
public final class CommandLine {
/**
* Prevents creation of instances.
*/
private CommandLine() {
}
/**
* Returns the value corresponding to the given switch.
*
*
Returns null if any of the parameters is null.
*
* @param name The name of the command line switch
* @param args The command line arguments
*
* @return The value of the parameter or null.
*/
public static String getParameter(String name, String[] args) {
if (args == null || args.length < 2 || name == null) return null;
// find the argument
for (int i = 0; i < args.length; i++) {
if (name.equals(args[i]) && i+1 < args.length)
return args[i+1];
}
return null;
}
/**
* Return true if the specified switch exists in the arguments.
*
*
This method will go through every argument to check whether the switch exists
* or not.
*
*
Returns false if any of the parameters is null.
*
* @param name The name of the command line switch.
* @param args The command line arguments.
*
* @return true if the switch if available; false otherwise.
*/
public static boolean hasSwitch(String name, String[] args) {
if (args == null || name == null) return false;
for (String arg : args) {
if (name.equals(arg)) return true;
}
return false;
}
}