com.github.houbb.asm.tool.reflection.AsmMethods Maven / Gradle / Ivy

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package com.github.houbb.asm.tool.reflection;

import com.github.houbb.asm.tool.reflection.method.core.impl.AsmMethodParamName;
import com.github.houbb.asm.tool.vo.MethodMeta;
import com.github.houbb.heaven.support.instance.impl.Instances;
import com.github.houbb.heaven.util.common.ArgUtil;
import com.github.houbb.heaven.util.lang.reflect.ReflectMethodUtil;
import org.objectweb.asm.Type;

import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.List;

/**
 * Ams 方法工具类
 * @author binbin.hou
 * @since 0.0.1
 */
public final class AsmMethods {

    private AsmMethods(){}

    /**
     * 根据注解获取对应的参数名称
     * @param method 方法信息
     * @return 方法列表
     * @since 0.0.1
     */
    public static List getParamNamesByAnnotation(final Method method) {
        ArgUtil.notNull(method, "method");

        return ReflectMethodUtil.getParamNames(method);
    }

    /**
     * 根据注解获取对应的参数名称
     * @param method 方法信息
     * @return 方法列表
     * @since 0.0.1
     */
    public static List getParamNamesByAsm(final Method method) {
        ArgUtil.notNull(method, "method");

        final boolean statics = Modifier.isStatic(method.getModifiers());
        final String name = method.getName();
        final String descriptor = Type.getMethodDescriptor(method);
        final Class[] parameterTypes = method.getParameterTypes();
        final Class clazz = method.getDeclaringClass();

        MethodMeta methodMeta = new MethodMeta();
        methodMeta.statics(statics).name(name)
                .declaringClass(clazz).descriptor(descriptor)
                .paramTypes(parameterTypes);

        return Instances.singleton(AsmMethodParamName.class).getParamNames(methodMeta);
    }

    /**
     * 根据注解获取对应的参数名称
     * @param constructor 构造器
     * @return 方法列表
     * @since 0.0.2
     */
    public static List getParamNamesByAnnotation(final Constructor constructor) {
        ArgUtil.notNull(constructor, "constructor");

        Annotation[][] annotations = constructor.getParameterAnnotations();
        return ReflectMethodUtil.getParamNames(annotations);
    }

    /**
     * 根据注解获取对应的参数名称
     * @param constructor 构造器
     * @return 方法列表
     * @since 0.0.2
     */
    public static List getParamNamesByAsm(final Constructor constructor) {
        ArgUtil.notNull(constructor, "constructor");

        final boolean statics = Modifier.isStatic(constructor.getModifiers());
        final String name = "";
        final String descriptor = Type.getConstructorDescriptor(constructor);
        final Class[] parameterTypes = constructor.getParameterTypes();
        final Class clazz = constructor.getDeclaringClass();

        MethodMeta methodMeta = new MethodMeta();
        methodMeta.statics(statics).name(name)
                .declaringClass(clazz).descriptor(descriptor)
                .paramTypes(parameterTypes);

        return Instances.singleton(AsmMethodParamName.class).getParamNames(methodMeta);
    }

}