/* * Copyright (c) 2018-2028, Chill Zhuang All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * Neither the name of the dreamlu.net developer nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * Author: Chill 庄骞 (smallchill@163.com) */ package org.springblade.core.loadbalancer.rule; import org.springblade.core.auto.annotation.AutoEnvPostProcessor; import org.springframework.boot.SpringApplication; import org.springframework.boot.env.EnvironmentPostProcessor; import org.springframework.core.Ordered; import org.springframework.core.env.ConfigurableEnvironment; import org.springframework.util.StringUtils; /** * 灰度版本 自动处理 * * @author Chill */ @AutoEnvPostProcessor public class GrayscaleEnvPostProcessor implements EnvironmentPostProcessor, Ordered { private static final String GREYSCALE_KEY = "blade.loadbalancer.version"; private static final String METADATA_KEY = "spring.cloud.nacos.discovery.metadata.version"; @Override public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) { String version = environment.getProperty(GREYSCALE_KEY); if (StringUtils.hasText(version)) { environment.getSystemProperties().put(METADATA_KEY, version); } } @Override public int getOrder() { return Ordered.LOWEST_PRECEDENCE; } }