nosum-support/spring-boot-dynamic-methods-starter/src/main/java/cn/nosum/support/config/DynamicClientFactoryBean.java

package cn.nosum.support.config;

import cn.nosum.support.proxy.InvocationHandlerFactory;
import cn.nosum.support.proxy.Target;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.util.StringUtils;

/**
 * Dynamic client factory bean.
 *
 * @author Young
 */
public class DynamicClientFactoryBean implements FactoryBean<Object>, ApplicationContextAware {

    private ApplicationContext applicationContext;

    private String name;
    private Class<?> type;
    private String refName;
    private Class<?> refType;

    public void setName(String name) {
        this.name = name;
    }

    public void setType(Class<?> type) {
        this.type = type;
    }

    public void setRefName(String refName) {
        this.refName = refName;
    }

    public void setRefType(Class<?> refType) {
        this.refType = refType;
    }

    @Override
    public Object getObject() throws Exception {
        return getTarget();
    }

    <T> T getTarget() {
        Targeter targeter = applicationContext.getBean(Targeter.class);
        InvocationHandlerFactory handlerFactory = applicationContext.getBean(InvocationHandlerFactory.class);
        if (!StringUtils.hasText(this.refName)){
            String[] beanNamesForType = applicationContext.getBeanNamesForType(this.refType);
            this.refName = beanNamesForType[0];
        }
        return (T) targeter.target(this, handlerFactory,new Target.DefaultTarget(this.name, this.type, this.refName, this.refType) );
    }

    @Override
    public Class<?> getObjectType() {
        return this.type;
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }
}