org.noear.solon.aot.proxy.MethodFinder Maven / Gradle / Ivy
/*
* Copyright 2017-2024 noear.org and authors
*
* 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
*
* https://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 org.noear.solon.aot.proxy;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Parameter;
import java.util.Map;
import java.util.TreeMap;
/**
* 函数处理工具
*
* @author noear
* @since 2.2
*/
public class MethodFinder {
/**
* 是否允许函数处理
*/
public static boolean allowMethod(Method element) {
int modifiers = element.getModifiers();
if (Modifier.isStatic(modifiers) ||
Modifier.isFinal(modifiers) ||
Modifier.isAbstract(modifiers) ||
Modifier.isPrivate(modifiers) ||
Modifier.isProtected(modifiers)) {
//静态 或 只读 或 私有;不需要重写
return false;
} else {
return true;
}
}
/**
* 构建函数唯一识别键
*/
public static String buildMethodKey(Method method) {
StringBuilder buf = new StringBuilder();
buf.append(method.getName());
buf.append("(");
for (Parameter pe : method.getParameters()) {
Class> pet = pe.getType();//todo: 可能要增加泛型支持
buf.append(pet.toString());
buf.append(",");
}
buf.append(")");
return buf.toString();
}
/**
* 查找类的所有函数(包括父类)
*
* @param type 类型
*/
public static Map findMethodAll(Class> type) {
Map methodAll = new TreeMap<>(); //new LinkedHashMap<>();
findMethodDo(type, methodAll);
return methodAll;
}
/**
* 查找函数
*/
private static void findMethodDo(Class> type, Map methodAll) {
if (type == null || type == Object.class) {
return;
}
//本级优先
for (Method method : type.getDeclaredMethods()) {
if (allowMethod(method)) {
String methodKey = buildMethodKey(method);
methodAll.putIfAbsent(methodKey, method);
}
}
findMethodDo(type.getSuperclass(), methodAll);
for (Class> ifType : type.getInterfaces()) {
findMethodDo(ifType, methodAll);
}
}
}
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