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Celerio Core Generation Engine
/*
* Copyright 2015 JAXIO http://www.jaxio.com
*
* Licensed under the Apache 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.apache.org/licenses/LICENSE-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 com.jaxio.celerio.util;
/**
* Convenient String manipulation class.
*/
public class StringUtil {
/**
* Is the given string not empty ?
*
* @param s the string to check
* @return true if not empty, false otherwise
*/
public static boolean hasLength(String s) {
return s != null && s.trim().length() > 0;
}
/**
* If the given value collides with java reserved words, modify accordingly the value
*
* @param s the value to escape
* @return a string that is saved to be used in a java program
*/
public static String escape(String s) {
return JavaKeywords.isReserved(s) ? ("my_" + s) : s;
}
public static String getPlural(String s) {
if (s.toLowerCase().endsWith("ss")) {
return s + "es";
} else if (s.toLowerCase().endsWith("x")) {
return s + "es";
} else if (s.toLowerCase().endsWith("y")) {
return s.substring(0, s.length() - 1) + "ies";
} else if (s.toLowerCase().endsWith("child")) {
return s + "ren";
}
return s + "s";
}
public static String getPlural(String s, boolean doPlural) {
return doPlural ? getPlural(s) : s;
}
public static String getFirstCharacterLowered(String buffer) {
if (buffer == null) { // convenient case when used with fallback.
return null;
}
if (buffer.length() > 1) {
return Character.toLowerCase(buffer.charAt(0)) + buffer.substring(1);
}
return "" + Character.toLowerCase(buffer.charAt(0));
}
public static String getFirstCharacterUppered(StringBuffer buffer) {
return getFirstCharacterUppered(buffer.toString());
}
public static String getFirstCharacterUppered(String buffer) {
if (buffer.length() > 1) {
return Character.toUpperCase(buffer.charAt(0)) + buffer.substring(1);
}
return String.valueOf(Character.toUpperCase(buffer.charAt(0)));
}
}