PropertyName.java

/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2022 wcm.io
 * %%
 * 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
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package io.wcm.siteapi.handler.link.impl;

import org.apache.commons.lang3.CharUtils;
import org.jetbrains.annotations.NotNull;

/**
 * Maps property names.
 */
final class PropertyName {

  private PropertyName() {
    // static methods only
  }

  /**
   * Converts a headless camel case property name (myCustomProperty) to kebab-kase (my-custom-property).
   * @param headlessCamelCaseName Headless camel case name
   * @return HTML5 data attribute name
   * @throws IllegalArgumentException If parameter name is not valid
   */
  public static String toKebabCase(@NotNull String headlessCamelCaseName) {
    StringBuilder result = new StringBuilder();
    boolean firstChar = true;
    for (char c : headlessCamelCaseName.toCharArray()) {
      if (CharUtils.isAsciiAlphaUpper(c) && !firstChar) {
        result.append('-');
      }
      result.append(Character.toLowerCase(c));
      firstChar = false;
    }
    return result.toString();
  }

}