com.spring.boxes.dollar.support.graphql.GraphqlInvoker Maven / Gradle / Ivy

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package com.spring.boxes.dollar.support.graphql;

import graphql.schema.DataFetchingEnvironment;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.context.ApplicationContext;
import org.springframework.util.Assert;
import org.springframework.util.ReflectionUtils;

import java.lang.reflect.Method;
import java.util.Objects;

public class GraphqlInvoker {

    public static String[] splitInvokerService(String service) {
        Assert.isTrue(StringUtils.isNotBlank(service), "目标方法为空");
        String[] arr = StringUtils.split(service, "#");
        Assert.isTrue(ArrayUtils.getLength(arr) == 2, "方法格式配置错误");
        return arr;
    }

    public static Object invokeWithSpringContext(ApplicationContext applicationContext,
                                                 String serviceInvoker, DataFetchingEnvironment environment) {
        String[] invoker = splitInvokerService(serviceInvoker);
        return invokeWithSpringContext(applicationContext, invoker[0], invoker[1], environment);
    }

    public static Object invokeWithSpringContext(ApplicationContext applicationContext,
                                                 String beanName, String methodName, DataFetchingEnvironment environment) {
        // 根据参数和反射动态调用
        Class clazz = applicationContext.getBean(beanName).getClass();
        Object classBean = applicationContext.getBean(beanName);
        Method method = ReflectionUtils.findMethod(clazz, methodName, DataFetchingEnvironment.class);
        Assert.isTrue(Objects.nonNull(method), "invoke method is null");
        return ReflectionUtils.invokeMethod(method, classBean, environment);
    }

    public static Object invokeWithClassName(String classMethod, DataFetchingEnvironment environment) {
        String[] invoker = splitInvokerService(classMethod);
        String className = invoker[0];
        String methodName = invoker[1];
        try {
            Class clazz = Class.forName(className);
            Method method = ReflectionUtils.findMethod(clazz, methodName, DataFetchingEnvironment.class);
            Assert.isTrue(Objects.nonNull(method), "invoke method is null");
            Object classBean = clazz.getDeclaredConstructor().newInstance();
            return ReflectionUtils.invokeMethod(method, classBean, environment);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}