org.kuali.student.contract.writer.JavaEnumConstantCalculator Maven / Gradle / Ivy

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/*
 * Copyright 2010 The Kuali Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may	obtain a copy of the License at
 *
 * 	http://www.osedu.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kuali.student.contract.writer;

/**
 *
 * @author nwright
 */
public class JavaEnumConstantCalculator {

    private String name;

    public JavaEnumConstantCalculator(String name) {
        this.name = name;
    }

    public String calc() {
        StringBuilder buf = new StringBuilder(name.length() + 3);
        // do the first character so we don't prepend the first with a _ if it is upper
        char c = Character.toUpperCase(name.charAt(0));
        buf.append(c);
        boolean lastUpper = Character.isUpperCase(c);
        for (int i = 1; i < name.length(); i++) {
            c = name.charAt(i);
            if (Character.isUpperCase(c)) {
                if (!lastUpper) {
                    buf.append('_');
                }
                lastUpper = true;
            } else {
                lastUpper = false;
            }

            buf.append(Character.toUpperCase(c));
        }

        return buf.toString();
    }

    public String reverse() {
        StringBuffer buf = new StringBuffer(name.length());
        boolean uppercase = true;
        for (int i = 0; i < name.length(); i++) {
            char c = name.charAt(i);
            if (uppercase) {
                c = Character.toUpperCase(c);
                uppercase = false;
            } else {
                c = Character.toLowerCase(c);
            }
            if (c == '_') {
                uppercase = true;
                continue;
            }
            buf.append(c);
        }

        return buf.toString();
    }
}