fix：RefreshAdminServerAddressTask supports dynamic configuration of time interval

CHANGES.md

@@ -14,5 +14,7 @@ Apollo 2.4.0
 * [Feature support the observe status access-key for pre-check and logging only](https://github.com/apolloconfig/apollo/pull/5236)
 * [Feature add limit for items count per namespace](https://github.com/apolloconfig/apollo/pull/5227)
 * [Feature: Add ConfigService cache record stats function](https://github.com/apolloconfig/apollo/pull/5247)
+* [RefreshAdminServerAddressTask supports dynamic configuration of time interval](https://github.com/apolloconfig/apollo/pull/5248)
+
 ------------------
 All issues and pull requests are [here](https://github.com/apolloconfig/apollo/milestone/15?closed=1)

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/component/AdminServiceAddressLocator.java

@@ -16,6 +16,7 @@
  */
 package com.ctrip.framework.apollo.portal.component;
 
+import com.ctrip.framework.apollo.portal.component.config.PortalConfig;
 import com.ctrip.framework.apollo.portal.environment.PortalMetaDomainService;
 import com.ctrip.framework.apollo.core.dto.ServiceDTO;
 import com.ctrip.framework.apollo.portal.environment.Env;
@@ -42,8 +43,6 @@
 @Component
 public class AdminServiceAddressLocator {
 
-  private static final long NORMAL_REFRESH_INTERVAL = 5 * 60 * 1000;
-  private static final long OFFLINE_REFRESH_INTERVAL = 10 * 1000;
   private static final int RETRY_TIMES = 3;
   private static final String ADMIN_SERVICE_URL_PATH = "/services/admin";
   private static final Logger logger = LoggerFactory.getLogger(AdminServiceAddressLocator.class);
@@ -56,16 +55,19 @@ public class AdminServiceAddressLocator {
   private final PortalSettings portalSettings;
   private final RestTemplateFactory restTemplateFactory;
   private final PortalMetaDomainService portalMetaDomainService;
+  private final PortalConfig portalConfig;
 
   public AdminServiceAddressLocator(
       final HttpMessageConverters httpMessageConverters,
       final PortalSettings portalSettings,
       final RestTemplateFactory restTemplateFactory,
-      final PortalMetaDomainService portalMetaDomainService
+      final PortalMetaDomainService portalMetaDomainService,
+      final PortalConfig portalConfig
   ) {
     this.portalSettings = portalSettings;
     this.restTemplateFactory = restTemplateFactory;
     this.portalMetaDomainService = portalMetaDomainService;
+    this.portalConfig = portalConfig;
   }
 
   @PostConstruct
@@ -105,10 +107,10 @@ public void run() {
 
       if (refreshSuccess) {
         refreshServiceAddressService
-            .schedule(new RefreshAdminServerAddressTask(), NORMAL_REFRESH_INTERVAL, TimeUnit.MILLISECONDS);
+            .schedule(new RefreshAdminServerAddressTask(), portalConfig.refreshAdminServerAddressTaskNormalIntervalSecond(), TimeUnit.SECONDS);
       } else {
         refreshServiceAddressService
-            .schedule(new RefreshAdminServerAddressTask(), OFFLINE_REFRESH_INTERVAL, TimeUnit.MILLISECONDS);
+            .schedule(new RefreshAdminServerAddressTask(), portalConfig.refreshAdminServerAddressTaskOfflineIntervalSecond(), TimeUnit.SECONDS);
       }
     }
   }

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/component/config/PortalConfig.java

@@ -43,6 +43,9 @@ public class PortalConfig extends RefreshableConfig {
 
   private static final Logger logger = LoggerFactory.getLogger(PortalConfig.class);
 
+  private static final int DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_NORMAL_INTERVAL_IN_SECOND = 5 * 60; //5min
+  private static final int DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_OFFLINE_INTERVAL_IN_SECOND = 10; //10s
+
   private static final Gson GSON = new Gson();
   private static final Type ORGANIZATION = new TypeToken<List<Organization>>() {
   }.getType();
@@ -193,6 +196,16 @@ public String portalAddress() {
     return getValue("apollo.portal.address");
   }
 
+  public int refreshAdminServerAddressTaskNormalIntervalSecond() {
+    int interval = getIntProperty("refresh.admin.server.address.task.normal.interval.second", DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_NORMAL_INTERVAL_IN_SECOND);
+    return checkInt(interval, 5, Integer.MAX_VALUE, DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_NORMAL_INTERVAL_IN_SECOND);
+  }
+
+  public int refreshAdminServerAddressTaskOfflineIntervalSecond() {
+    int interval = getIntProperty("refresh.admin.server.address.task.offline.interval.second", DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_OFFLINE_INTERVAL_IN_SECOND);
+    return checkInt(interval, 5, Integer.MAX_VALUE, DEFAULT_REFRESH_ADMIN_SERVER_ADDRESS_TASK_OFFLINE_INTERVAL_IN_SECOND);
+  }
+
   public boolean isEmergencyPublishAllowed(Env env) {
     String targetEnv = env.getName();
 
@@ -304,4 +317,12 @@ public List<String> getUserPasswordNotAllowList() {
     }
     return Arrays.asList(value);
   }
+
+  private int checkInt(int value, int min, int max, int defaultValue) {
+    if (value >= min && value <= max) {
+      return value;
+    }
+    logger.warn("Configuration value '{}' is out of bounds [{} - {}]. Using default value '{}'.", value, min, max, defaultValue);
+    return defaultValue;
+  }
 }