001/**
002 * Copyright 2004-2014 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.student.contract.writer;
017
018/**
019 *
020 * @author nwright
021 */
022public class JavaEnumConstantCalculator {
023
024    private String name;
025
026    public JavaEnumConstantCalculator(String name) {
027        this.name = name;
028    }
029
030    public String calc() {
031        StringBuilder buf = new StringBuilder(name.length() + 3);
032        // do the first character so we don't prepend the first with a _ if it is upper
033        char c = Character.toUpperCase(name.charAt(0));
034        buf.append(c);
035        boolean lastUpper = Character.isUpperCase(c);
036        for (int i = 1; i < name.length(); i++) {
037            c = name.charAt(i);
038            if (Character.isUpperCase(c)) {
039                if (!lastUpper) {
040                    buf.append('_');
041                }
042                lastUpper = true;
043            } else {
044                lastUpper = false;
045            }
046
047            buf.append(Character.toUpperCase(c));
048        }
049
050        return buf.toString();
051    }
052
053    public String reverse() {
054        StringBuffer buf = new StringBuffer(name.length());
055        boolean uppercase = true;
056        for (int i = 0; i < name.length(); i++) {
057            char c = name.charAt(i);
058            if (uppercase) {
059                c = Character.toUpperCase(c);
060                uppercase = false;
061            } else {
062                c = Character.toLowerCase(c);
063            }
064            if (c == '_') {
065                uppercase = true;
066                continue;
067            }
068            buf.append(c);
069        }
070
071        return buf.toString();
072    }
073}