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feat:added ribbon lb polaris weighted round robin rule (#1080)
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84 changes: 84 additions & 0 deletions
84
...oadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/AbstractPolarisRule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * Tencent is pleased to support the open source community by making Spring Cloud Tencent available. | ||
| * | ||
| * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved. | ||
| * | ||
| * Licensed under the BSD 3-Clause License (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://opensource.org/licenses/BSD-3-Clause | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed | ||
| * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR | ||
| * CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| */ | ||
|
|
||
| package com.tencent.cloud.polaris.loadbalancer; | ||
|
|
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| import java.util.List; | ||
|
|
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| import com.netflix.client.config.IClientConfig; | ||
| import com.netflix.loadbalancer.AbstractServerPredicate; | ||
| import com.netflix.loadbalancer.AvailabilityPredicate; | ||
| import com.netflix.loadbalancer.CompositePredicate; | ||
| import com.netflix.loadbalancer.PredicateBasedRule; | ||
| import com.netflix.loadbalancer.Server; | ||
| import com.tencent.cloud.common.pojo.PolarisServer; | ||
| import com.tencent.polaris.api.pojo.Instance; | ||
| import com.tencent.polaris.api.pojo.ServiceInstances; | ||
| import com.tencent.polaris.router.api.core.RouterAPI; | ||
| import com.tencent.polaris.router.api.rpc.ProcessLoadBalanceRequest; | ||
| import com.tencent.polaris.router.api.rpc.ProcessLoadBalanceResponse; | ||
|
|
||
| import org.springframework.util.CollectionUtils; | ||
|
|
||
| /** | ||
| * Abstract polaris load balancer rule. | ||
| * | ||
| * @author <a href="mailto:[email protected]">veteranchen</a> | ||
| */ | ||
| public abstract class AbstractPolarisRule extends PredicateBasedRule { | ||
| private final RouterAPI routerAPI; | ||
| private CompositePredicate compositePredicate; | ||
|
|
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| public AbstractPolarisRule(RouterAPI routerAPI) { | ||
| this.routerAPI = routerAPI; | ||
| } | ||
|
|
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| @Override | ||
| public void initWithNiwsConfig(IClientConfig clientConfig) { | ||
| AvailabilityPredicate availabilityPredicate = new AvailabilityPredicate(this, clientConfig); | ||
| compositePredicate = CompositePredicate.withPredicates(availabilityPredicate).build(); | ||
| } | ||
|
|
||
| @Override | ||
| public AbstractServerPredicate getPredicate() { | ||
| return compositePredicate; | ||
| } | ||
|
|
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| @Override | ||
| public Server choose(Object key) { | ||
| List<Server> servers = getLoadBalancer().getReachableServers(); | ||
| if (CollectionUtils.isEmpty(servers)) { | ||
| return null; | ||
| } | ||
|
|
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| // filter circuit breaker servers by ribbon | ||
| if (compositePredicate != null) { | ||
| servers = compositePredicate.getEligibleServers(servers); | ||
| } | ||
|
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| ServiceInstances serviceInstances = LoadBalancerUtils.transferServersToServiceInstances(servers); | ||
| ProcessLoadBalanceRequest request = new ProcessLoadBalanceRequest(); | ||
| request.setDstInstances(serviceInstances); | ||
| request = setProcessLoadBalanceRequest(request); | ||
| ProcessLoadBalanceResponse processLoadBalanceResponse = routerAPI.processLoadBalance(request); | ||
| Instance targetInstance = processLoadBalanceResponse.getTargetInstance(); | ||
| return new PolarisServer(serviceInstances, targetInstance); | ||
| } | ||
|
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| protected abstract ProcessLoadBalanceRequest setProcessLoadBalanceRequest(ProcessLoadBalanceRequest request); | ||
| } |
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41 changes: 41 additions & 0 deletions
41
...r/src/main/java/com/tencent/cloud/polaris/loadbalancer/PolarisWeightedRoundRobinRule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| /* | ||
| * Tencent is pleased to support the open source community by making Spring Cloud Tencent available. | ||
| * | ||
| * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved. | ||
| * | ||
| * Licensed under the BSD 3-Clause License (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://opensource.org/licenses/BSD-3-Clause | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed | ||
| * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR | ||
| * CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| */ | ||
|
|
||
| package com.tencent.cloud.polaris.loadbalancer; | ||
|
|
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| import com.tencent.polaris.api.config.consumer.LoadBalanceConfig; | ||
| import com.tencent.polaris.router.api.core.RouterAPI; | ||
| import com.tencent.polaris.router.api.rpc.ProcessLoadBalanceRequest; | ||
|
|
||
| /** | ||
| * Polaris weighted load balancer. | ||
| * | ||
| * @author <a href="mailto:[email protected]">veteranchen</a> | ||
| */ | ||
| public class PolarisWeightedRoundRobinRule extends AbstractPolarisRule { | ||
|
|
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| public PolarisWeightedRoundRobinRule(RouterAPI routerAPI) { | ||
| super(routerAPI); | ||
| } | ||
|
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| @Override | ||
| protected ProcessLoadBalanceRequest setProcessLoadBalanceRequest(ProcessLoadBalanceRequest request) { | ||
| request.setLbPolicy(LoadBalanceConfig.LOAD_BALANCE_WEIGHTED_ROUND_ROBIN); | ||
| return request; | ||
| } | ||
| } |
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