/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.dashboard.rule;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
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import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
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import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
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import com.alibaba.csp.sentinel.util.StringUtil;
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import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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/**
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* @author Eric Zhao
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*/
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@Component("flowRuleDefaultProvider")
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public class FlowRuleApiProvider implements DynamicRuleProvider<List<FlowRuleEntity>> {
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@Autowired
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private SentinelApiClient sentinelApiClient;
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@Autowired
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private AppManagement appManagement;
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@Override
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public List<FlowRuleEntity> getRules(String appName) throws Exception {
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if (StringUtil.isBlank(appName)) {
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return new ArrayList<>();
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}
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List<MachineInfo> list = appManagement.getDetailApp(appName).getMachines()
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.stream()
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.filter(MachineInfo::isHealthy)
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.sorted((e1, e2) -> Long.compare(e2.getLastHeartbeat(), e1.getLastHeartbeat())).collect(Collectors.toList());
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if (list.isEmpty()) {
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return new ArrayList<>();
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} else {
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MachineInfo machine = list.get(0);
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return sentinelApiClient.fetchFlowRuleOfMachine(machine.getApp(), machine.getIp(), machine.getPort());
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}
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}
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}
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