com.alibaba.dubbo.config.AbstractConfig Java Examples

private void registerDubboConfigBeans(String prefix,
                                          Class<? extends AbstractConfig> configClass,
                                          boolean multiple,
                                          BeanDefinitionRegistry registry) {

        Map<String, Object> properties = getSubProperties(environment.getPropertySources(), prefix);

        if (CollectionUtils.isEmpty(properties)) {
            if (log.isDebugEnabled()) {
                log.debug("There is no property for binding to dubbo config class [" + configClass.getName()
                        + "] within prefix [" + prefix + "]");
            }
            return;
        }

        Set<String> beanNames = multiple ? resolveMultipleBeanNames(properties) :
                Collections.singleton(resolveSingleBeanName(properties, configClass, registry));

        for (String beanName : beanNames) {

//            注册dubbo配置bean定义=》
            registerDubboConfigBean(beanName, configClass, registry);

//            注册dubbo配置绑定bean处理器=》
            registerDubboConfigBindingBeanPostProcessor(prefix, beanName, multiple, registry);

        }

    }
 

@Override
public <C extends AbstractConfig> void bind(String prefix, C dubboConfig) {
    DataBinder dataBinder = new DataBinder(dubboConfig);
    // Set ignored*
    dataBinder.setIgnoreInvalidFields(isIgnoreInvalidFields());
    dataBinder.setIgnoreUnknownFields(isIgnoreUnknownFields());
    // Get properties under specified prefix from PropertySources
    Map<String, Object> properties = getSubProperties(getPropertySources(), prefix);
    // Convert Map to MutablePropertyValues
    MutablePropertyValues propertyValues = new MutablePropertyValues(properties);
    // Bind
    dataBinder.bind(propertyValues);
}
 

@Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

        if (beanName.equals(this.beanName) && bean instanceof AbstractConfig) {

            AbstractConfig dubboConfig = (AbstractConfig) bean;

//            进行dubbo配置绑定=》
            dubboConfigBinder.bind(prefix, dubboConfig);

            if (log.isInfoEnabled()) {
                log.info("The properties of bean [name : " + beanName + "] have been binding by prefix of " +
                        "configuration properties : " + prefix);
            }
        }

        return bean;

    }
 

protected void registerBeanDefinitions(AnnotationAttributes attributes, BeanDefinitionRegistry registry) {

//        解析prefix属性，可以用占位符
        String prefix = environment.resolvePlaceholders(attributes.getString("prefix"));

//        type属性值，AbstractConfig的实现类
        Class<? extends AbstractConfig> configClass = attributes.getClass("type");

        boolean multiple = attributes.getBoolean("multiple");

//        注册dubbo配置属性=》
        registerDubboConfigBeans(prefix, configClass, multiple, registry);

    }
 

private void registerDubboConfigBean(String beanName, Class<? extends AbstractConfig> configClass,
                                     BeanDefinitionRegistry registry) {

    BeanDefinitionBuilder builder = rootBeanDefinition(configClass);

    AbstractBeanDefinition beanDefinition = builder.getBeanDefinition();

    registry.registerBeanDefinition(beanName, beanDefinition);

    if (log.isInfoEnabled()) {
        log.info("The dubbo config bean definition [name : " + beanName + ", class : " + configClass.getName() +
                "] has been registered.");
    }

}
 

private String resolveSingleBeanName(Map<String, Object> properties, Class<? extends AbstractConfig> configClass,
                                     BeanDefinitionRegistry registry) {

    String beanName = (String) properties.get("id");

    if (!StringUtils.hasText(beanName)) {
        BeanDefinitionBuilder builder = rootBeanDefinition(configClass);
        beanName = BeanDefinitionReaderUtils.generateBeanName(builder.getRawBeanDefinition(), registry);
    }

    return beanName;

}
 

/**
 * Bind the properties to Dubbo Config Object under specified prefix.将属性绑定到指定前缀下的Dubbo配置对象。
 *
 * @param prefix
 * @param dubboConfig
 */
<C extends AbstractConfig> void bind(String prefix, C dubboConfig);