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     */
016    package org.kuali.student.contract.writer;
017    
018    /**
019     *
020     * @author nwright
021     */
022    public 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    }