/**
* Copyright (c) 2001-2012 Steve Purcell.
* Copyright (c) 2002 Vidar Holen.
* Copyright (c) 2002 Michal Ceresna.
* Copyright (c) 2005 Ewan Mellor.
* Copyright (c) 2010-2012 penSec.IT UG (haftungsbeschränkt).
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. 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. Neither the name of the copyright holder nor the names
* of its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 COPYRIGHT HOLDERS OR 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.
*/
package com.sanityinc.jargs.examples;
import com.sanityinc.jargs.CmdLineParser;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Locale;
import java.util.Date;
public class CustomOptionTest {
private static void printUsage() {
System.err.println("usage: prog [{-d,--date} date]");
}
/**
* A custom type of command line option corresponding to a short
* date value, e.g. .
*/
public static class ShortDateOption extends CmdLineParser.Option<Date> {
public ShortDateOption( char shortForm, String longForm ) {
super(shortForm, longForm, true);
}
@Override
protected Date parseValue( String arg, Locale locale )
throws CmdLineParser.IllegalOptionValueException {
try {
DateFormat dateFormat =
DateFormat.getDateInstance(DateFormat.SHORT, locale);
return dateFormat.parse(arg);
} catch (ParseException e) {
throw new CmdLineParser.IllegalOptionValueException(this, arg);
}
}
}
public static void main( String[] args ) {
CmdLineParser parser = new CmdLineParser();
CmdLineParser.Option<Date> date =
parser.addOption(new ShortDateOption('d', "date"));
try {
parser.parse(args);
} catch ( CmdLineParser.OptionException e ) {
System.err.println(e.getMessage());
printUsage();
System.exit(2);
}
// Extract the values entered for the various options -- if the
// options were not specified, the corresponding values will be
// null.
Date dateValue = parser.getOptionValue(date);
// For testing purposes, we just print out the option values
System.out.println("date: " + dateValue);
// Extract the trailing command-line arguments ('a_number') in the
// usage string above.
String[] otherArgs = parser.getRemainingArgs();
System.out.println("remaining args: ");
for ( int i = 0; i < otherArgs.length; ++i ) {
System.out.println(otherArgs[i]);
}
// In a real program, one would pass the option values and other
// arguments to a function that does something more useful.
System.exit(0);
}
}