lijasonvip commented on a change in pull request #489: [WIP] SCB-36 Support dynamic configuration for chassis by integrating with ? URL: https://github.com/apache/incubator-servicecomb-java-chassis/pull/489#discussion_r160050160
########## File path: dynamic-config/config-apollo/src/main/java/io/servicecomb/config/client/ApolloClient.java ########## @@ -0,0 +1,162 @@ +/* + * 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 io.servicecomb.config.client; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.TimeUnit; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.http.HttpEntity; +import org.springframework.http.HttpHeaders; +import org.springframework.http.HttpMethod; +import org.springframework.http.ResponseEntity; +import org.springframework.web.client.RestTemplate; + +import com.fasterxml.jackson.core.type.TypeReference; + +import io.netty.handler.codec.http.HttpResponseStatus; +import io.servicecomb.config.archaius.sources.ApolloConfigurationSourceImpl.UpdateHandler; +import io.servicecomb.foundation.common.utils.JsonUtils; +import io.servicecomb.foundation.vertx.client.ClientPoolManager; +import io.servicecomb.foundation.vertx.client.http.HttpClientWithContext; + +public class ApolloClient { + + private static final Logger LOGGER = LoggerFactory.getLogger(ApolloClient.class); + + private static final ApolloConfig APOLLO_CONFIG = ApolloConfig.INSTANCE; + + public static final Map<String, Object> originalConfigMap = new HashMap<>(); + + private static ScheduledExecutorService EXECUTOR = Executors.newScheduledThreadPool(1); + + private int refreshInterval = APOLLO_CONFIG.getRefreshInterval(); + + private int firstRefreshInterval = APOLLO_CONFIG.getFirstRefreshInterval(); + + private String serviceUri = APOLLO_CONFIG.getServerUri(); + + private String serviceName = APOLLO_CONFIG.getServiceName(); + + private String token = APOLLO_CONFIG.getToken(); + + private String env = APOLLO_CONFIG.getEnv(); + + private String clusters = APOLLO_CONFIG.getServerClusters(); + + private String namespace = APOLLO_CONFIG.getNamespace(); + + private UpdateHandler updateHandler; + + private static ClientPoolManager<HttpClientWithContext> clientMgr = new ClientPoolManager<>(); + + public ApolloClient(UpdateHandler updateHandler) { + this.updateHandler = updateHandler; + } + + public void refreshApolloConfig() { + EXECUTOR + .scheduleWithFixedDelay(new ConfigRefresh(serviceUri), firstRefreshInterval, refreshInterval, TimeUnit.SECONDS); + } + + class ConfigRefresh implements Runnable { + private String serviceUri; + + public ConfigRefresh(String serviceUris) { + this.serviceUri = serviceUris; + } + + @Override + public void run() { + try { + refreshConfig(); + } catch (Exception e) { + LOGGER.error("client refresh thread exception", e); + } + } + + public void refreshConfig() { + RestTemplate rest = new RestTemplate(); + HttpHeaders headers = new HttpHeaders(); + headers.add("Content-Type", "application/json;charset=UTF-8"); + headers.add("Authorization", token); + HttpEntity<String> entity = new HttpEntity<String>(headers); + ResponseEntity<String> exchange = rest.exchange(composeAPI(), HttpMethod.GET, entity, String.class); + if (HttpResponseStatus.OK.code() == exchange.getStatusCode().value()) { + try { + Map<String, Object> body = JsonUtils.OBJ_MAPPER.readValue(exchange.getBody(), + new TypeReference<Map<String, Object>>() { + }); + refreshConfigItems((Map<String, Object>) body.get("configurations")); + } catch (IOException e) { + e.printStackTrace(); + } + } + } + + private String composeAPI() { + String api = serviceUri + "/openapi/v1/envs/" + env + + "/apps/" + serviceName + + "/clusters/" + clusters + + "/namespaces/" + namespace + + "/releases/latest"; + return api; + } + + private void refreshConfigItems(Map<String, Object> map) { + compareChangedConfig(originalConfigMap, map); + originalConfigMap.clear(); Review comment: Use public static variable would be better. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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