| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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 org.apache.servicecomb.bizkeeper; |
| |
| import java.util.Map; |
| |
| import org.apache.servicecomb.foundation.common.concurrent.ConcurrentHashMapEx; |
| |
| import com.netflix.hystrix.HystrixCommandKey; |
| import com.netflix.hystrix.HystrixCommandProperties; |
| import com.netflix.hystrix.HystrixCommandProperties.Setter; |
| import com.netflix.hystrix.strategy.properties.HystrixPropertiesStrategy; |
| |
| /** |
| * 定制HystrixPropertiesStrategy。 配置需要支持动态生效和调整, 默认的hystrix实现会根据CommonKey进行缓存。 |
| * CircuitBreake需要统计并记录请求数据,需要缓存并保证每个commandKey对应一个Breaker;单纯清理CommandKey无法动态生效。 |
| * 参考:HystrixCircuitBreaker.Factory.getInstance(commandKey, groupKey, |
| * properties, metrics) |
| * |
| */ |
| public final class HystrixPropertiesStrategyExt extends HystrixPropertiesStrategy { |
| |
| private static final HystrixPropertiesStrategyExt INSTANCE = new HystrixPropertiesStrategyExt(); |
| |
| private final Map<String, HystrixCommandProperties> commandPropertiesMap = new ConcurrentHashMapEx<>(); |
| |
| private HystrixPropertiesStrategyExt() { |
| } |
| |
| public static HystrixPropertiesStrategyExt getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public HystrixCommandProperties getCommandProperties(HystrixCommandKey commandKey, Setter builder) { |
| return commandPropertiesMap.computeIfAbsent(commandKey.name(), |
| key -> new HystrixCommandPropertiesExt(commandKey, builder)); |
| } |
| } |