/* * The MIT License (MIT) * * Copyright (c) 2014-2017 the original author or authors. * * 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 tk.mybatis.mapper.weekend.reflection; import tk.mybatis.mapper.weekend.Fn; import java.beans.Introspector; import java.lang.invoke.SerializedLambda; import java.lang.reflect.Method; import java.util.regex.Pattern; /** * @author Frank */ public class Reflections { private static final Pattern GET_PATTERN = Pattern.compile("^get[A-Z].*"); private static final Pattern IS_PATTERN = Pattern.compile("^is[A-Z].*"); private Reflections() { } public static String fnToFieldName(Fn fn) { try { Method method = fn.getClass().getDeclaredMethod("writeReplace"); method.setAccessible(Boolean.TRUE); SerializedLambda serializedLambda = (SerializedLambda) method.invoke(fn); String getter = serializedLambda.getImplMethodName(); if (GET_PATTERN.matcher(getter).matches()) { getter = getter.substring(3); } else if (IS_PATTERN.matcher(getter).matches()) { getter = getter.substring(2); } return Introspector.decapitalize(getter); } catch (ReflectiveOperationException e) { throw new ReflectionOperationException(e); } } }