com.regnosys.rosetta.common.serialisation.BeanUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of rosetta-common Show documentation

Rune Common is a java library that is utilised by Rosetta Code Generators and models expressed in the Rosetta DSL.

There is a newer version: 11.27.1

package com.regnosys.rosetta.common.serialisation;

/*-
 * ==============
 * Rune Common
 * ==============
 * Copyright (C) 2018 - 2024 REGnosys
 * ==============
 * 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.
 * ==============
 */

import java.lang.reflect.Method;

public class BeanUtil {

    public static String getPropertyName(Method method) {
        String methodName = method.getName();
        String rawPropertyName = getSubstringIfPrefixMatches(methodName, "get");
        if (rawPropertyName == null) {
            rawPropertyName = getSubstringIfPrefixMatches(methodName, "set");
        }

        if (rawPropertyName == null) {
            rawPropertyName = getSubstringIfPrefixMatches(methodName, "is");
        }

        if (rawPropertyName == null) {
            rawPropertyName = getSubstringIfPrefixMatches(methodName, "add");
        }

        return toLowerCamelCase(rawPropertyName);
    }

    public static String toLowerCamelCase(String string) {
        if (string == null) {
            return null;
        } else if (string.isEmpty()) {
            return string;
        } else if (string.length() > 1 && Character.isUpperCase(string.charAt(1)) && Character.isUpperCase(string.charAt(0))) {
            return string;
        } else {
            char[] chars = string.toCharArray();
            chars[0] = Character.toLowerCase(chars[0]);
            return new String(chars);
        }
    }

    private static String getSubstringIfPrefixMatches(String wholeString, String prefix) {
        return wholeString.startsWith(prefix) ? wholeString.substring(prefix.length()) : null;
    }
}