001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.runtime.authentication.standard;
021
022public class RandomCodeGenerator10Chars implements RandomCodeGenerator {
023
024    private static final int NUMBER_CHARACTERS = 10;
025    private static final String CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
026
027    @Override
028    public String generateRandomCode() {
029        final StringBuilder buf = new StringBuilder(NUMBER_CHARACTERS);
030        for (int i = 0; i < NUMBER_CHARACTERS; i++) {
031            final int pos = (int) ((Math.random() * CHARACTERS.length()));
032            buf.append(CHARACTERS.charAt(pos));
033        }
034        return buf.toString();
035    }
036
037}