package com.zihexin.application.strategy;

import org.springframework.beans.BeansException;

import org.springframework.beans.factory.NoSuchBeanDefinitionException;

import org.springframework.beans.factory.config.BeanFactoryPostProcessor;

import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

import org.springframework.stereotype.Component;

/**

 * @Author: SimonHu

 * @Date: 2019/7/18 16:05

 * @Description:普通线程类获取service类,命名不规范会导致获取不到bean，可以断点查看beanFactory.getBean内beanDefinitionMap内

 * 具体bean的别名；

 */

@Component

public final class SpringUtils implements BeanFactoryPostProcessor, ApplicationContextAware {

    /**

     * Spring应用上下文环境

     */

    private static ConfigurableListableBeanFactory beanFactory;

    private static ApplicationContext applicationContext = null;

    @Override

    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {

        SpringUtils.beanFactory = beanFactory;

    }

    /**

     * 获取对象

     *

     * @param name

     * @return Object 一个以所给名字注册的bean的实例

     * @throws org.springframework.beans.BeansException

     */

    @SuppressWarnings("unchecked")

    public static <T> T getBean(String name) throws BeansException {

        return (T) beanFactory.getBean(name);

    }

    /**

     * 获取类型为requiredType的对象

     *

     * @param clz

     * @return

     * @throws org.springframework.beans.BeansException

     */

    public static <T> T getBean(Class<T> clz) throws BeansException {

        T result = (T) beanFactory.getBean(clz);

        return result;

    }

    /**

     * 如果BeanFactory包含一个与所给名称匹配的bean定义，则返回true

     *

     * @param name

     * @return boolean

     */

    public static boolean containsBean(String name) {

        return beanFactory.containsBean(name);

    }

    /**

     * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 如果与给定名字相应的bean定义没有被找到，将会抛出一个异常（NoSuchBeanDefinitionException）

     *

     * @param name

     * @return boolean

     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException

     */

    public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException {

        return beanFactory.isSingleton(name);

    }

    /**

     * @param name

     * @return Class 注册对象的类型

     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException

     */

    public static Class<?> getType(String name) throws NoSuchBeanDefinitionException {

        return beanFactory.getType(name);

    }

    /**

     * 如果给定的bean名字在bean定义中有别名，则返回这些别名

     *

     * @param name

     * @return

     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException

     */

    public static String[] getAliases(String name) throws NoSuchBeanDefinitionException {

        return beanFactory.getAliases(name);

    }

    @Override

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

        if (SpringUtils.applicationContext == null) {

            SpringUtils.applicationContext = applicationContext;

        }

    }

    //获取applicationContext

    public static ApplicationContext getApplicationContext() {

        return applicationContext;

    }

}

@Component

public class TPPStrategy implements Strategy {

    @Autowired

    private TPPTask tppTask;

    public TPPStrategy() {

       //  beanName 不规范会导致获取失败，看工具类描述

        tppTask = SpringUtils.getBean("TPPTask");

    }

     @Override

    public void consumeTask() {

        tppTask.consumeTask();

    }

}