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/*
* Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.core;
/**
* Container for static utility methods useful for some of the standard lombok transformations, regardless of
* target platform (e.g. useful for both javac and Eclipse lombok implementations).
*/
public class TransformationsUtil {
private TransformationsUtil() {
//Prevent instantiation
}
/**
* Generates a getter name from a given field name.
*
* Strategy:
*
* First, pick a prefix. 'get' normally, but 'is' if <code>isBoolean</code> is true.
*
* Then, check if the first character of the field is lowercase. If so, check if the second character
* exists and is title or upper case. If so, uppercase the first character. If not, titlecase the first character.
*
* return the prefix plus the possibly title/uppercased first character, and the rest of the field name.
*
* @param fieldName the name of the field.
* @param isBoolean if the field is of type 'boolean'. For fields of type 'java.lang.Boolean', you should provide <code>false</code>.
*/
public static String toGetterName(CharSequence fieldName, boolean isBoolean) {
final String prefix = isBoolean ? "is" : "get";
if ( fieldName.length() == 0 ) return prefix;
return buildName(prefix, fieldName.toString());
}
/**
* Generates a getter name from a given field name.
*
* Strategy:
*
* Check if the first character of the field is lowercase. If so, check if the second character
* exists and is title or upper case. If so, uppercase the first character. If not, titlecase the first character.
*
* return "set" plus the possibly title/uppercased first character, and the rest of the field name.
*
* @param fieldName the name of the field.
*/
public static String toSetterName(CharSequence fieldName) {
return buildName("set", fieldName.toString());
}
private static String buildName(String prefix, String suffix) {
if ( suffix.length() == 0 ) return prefix;
char first = suffix.charAt(0);
if ( Character.isLowerCase(first) ) {
boolean useUpperCase = suffix.length() > 2 &&
(Character.isTitleCase(suffix.charAt(1)) || Character.isUpperCase(suffix.charAt(1)));
suffix = String.format("%s%s",
useUpperCase ? Character.toUpperCase(first) : Character.toTitleCase(first),
suffix.subSequence(1, suffix.length()));
}
return String.format("%s%s", prefix, suffix);
}
}
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