Java Regex Int Validate parseInteger(String key, String sourceString)

Description

parse Integer

License

Open Source License

Declaration

public static Integer parseInteger(String key, String sourceString) 

Method Source Code

//package com.java2s;
/*/*from   w  ww .j  a  va  2s  .  co m*/
 *   Copyright 2008-2011 Follett Software Company 
 *
 *   This file is part of PerfMon4j(tm).
 *
 *    Perfmon4j is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU Lesser General Public License, version 3,
 *    as published by the Free Software Foundation.  This program is distributed
 *    WITHOUT ANY WARRANTY OF ANY KIND, WITHOUT AN IMPLIED WARRANTY OF MERCHANTIBILITY,
 *    OR FITNESS FOR A PARTICULAR PURPOSE.  You should have received a copy of the GNU Lesser General Public 
 *    License, Version 3, along with this program.  If not, you can obtain the LGPL v.s at 
 *    http://www.gnu.org/licenses/
 *    
 *    perfmon4j@fsc.follett.com
 *    David Deuchert
 *    Follett Software Company
 *    1391 Corporate Drive
 *    McHenry, IL 60050
 * 
*/

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static Integer parseInteger(String key, String sourceString) {
        Integer result = null;
        if (sourceString != null) {
            Pattern pattern = Pattern.compile(quoteForRegEx(key) + "=(\\d++)");
            Matcher matcher = pattern.matcher(sourceString);
            if (matcher.find()) {
                result = new Integer(matcher.group(1));
            }
        }
        return result;
    }

    private static String quoteForRegEx(String input) {
        return "\\Q" + input + "\\E";
    }
}

Related

1. parseInt(Object str)
2. parseInt(String value)
3. parseInt(String[] strs)
4. parseInteger(String attrVal)
5. parseInteger(String inStr, Integer def)
6. parseInteger(String str)
7. parseIntegerList(String var0, int var1, int var2)
8. parseIntegers(String integerString)
9. parseIntToString(String value)