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