001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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 * Contributors:
017 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.webengine.model;
023
024/**
025 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
026 */
027public class Utils {
028
029    private Utils() {
030    }
031
032    public static boolean streq(String str1, String str2) {
033        if (str1 == null) {
034            return str2 == null;
035        } else if (str2 == null) {
036            return false;
037        } else {
038            return str1.equals(str2);
039        }
040    }
041
042    public static String nullIfEmpty(String str) {
043        return str != null && str.length() == 0 ? null : str;
044    }
045
046    public static String fcToUpperCase(String str) {
047        char c = str.charAt(0);
048        if (Character.isLowerCase(c)) {
049            str = new StringBuilder().append(Character.toUpperCase(c)).append(str.substring(1)).toString();
050        }
051        return str;
052    }
053
054    public static String fcToLowerCase(String str) {
055        char c = str.charAt(0);
056        if (Character.isUpperCase(c)) {
057            str = new StringBuilder().append(Character.toLowerCase(c)).append(str.substring(1)).toString();
058        }
059        return str;
060    }
061
062}