package com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade;
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import com.alibaba.csp.sentinel.dashboard.constants.SentinelConStants;
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import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
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import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
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import com.alibaba.csp.sentinel.dashboard.rule.nacos.SentinelConfig;
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import com.alibaba.csp.sentinel.datasource.Converter;
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import com.alibaba.csp.sentinel.util.StringUtil;
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import com.alibaba.nacos.api.config.ConfigService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 降级规则拉取
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*
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* @author zyf
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* @date 2022-04-13
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*/
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@Component("degradeRuleNacosProvider")
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public class DegradeRuleNacosProvider implements DynamicRuleProvider<List<DegradeRuleEntity>> {
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@Autowired
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private ConfigService configService;
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@Autowired
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private Converter<String, List<DegradeRuleEntity>> converter;
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@Override
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public List<DegradeRuleEntity> getRules(String appName) throws Exception {
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String rules = configService.getConfig(appName + SentinelConStants.DEGRADE_DATA_ID_POSTFIX,
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SentinelConStants.GROUP_ID, 3000);
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if (StringUtil.isEmpty(rules)) {
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return new ArrayList<>();
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}
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return converter.convert(rules);
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}
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}
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