Upgrade to 2.1.2

.github/workflows/ci.yml

@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [ develop, v1.x-develop ]
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   unix:
     runs-on: ${{ matrix.os }}

.github/workflows/it.yml

@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [ develop, v1.x-develop ]
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   unix:
     runs-on: ${{ matrix.os }}

CHANGELOG.md

@@ -172,7 +172,7 @@
 
 ## 0.2.1-release(Sept 28, 2018)
 
-* FIx deregister last instance failed error.
+* Fix deregister last instance failed error.
 * Fix url pattern error.
 * Fully integrate with and seamlessly support Spring framework, Spring Boot and Spring Cloud
 * Separate nacos-api from nacos client implementation

README.md

@@ -83,6 +83,8 @@ For more details, see [quick-start.](https://nacos.io/en-us/docs/quick-start.htm
 
 You can view the full documentation from the [Nacos website](https://nacos.io/en-us/docs/what-is-nacos.html).
 
+You can also read this online eBook from the [NACOS ARCHITECTURE & PRINCIPLES](https://www.yuque.com/nacos/ebook/kbyo6n).
+
 All the latest and long-term notice can also be found here from [Github notice issue](https://github.com/alibaba/nacos/labels/notice).
 
 ## Contributing

api/src/main/java/com/alibaba/nacos/api/PropertyKeyConst.java

@@ -75,6 +75,8 @@ public class PropertyKeyConst {
 
     public static final String NAMING_PUSH_EMPTY_PROTECTION = "namingPushEmptyProtection";
 
+    public static final String NAMING_ASYNC_QUERY_SUBSCRIBE_SERVICE = "namingAsyncQuerySubscribeService";
+
     public static final String PUSH_RECEIVER_UDP_PORT = "push.receiver.udp.port";
 
     /**

api/src/main/java/com/alibaba/nacos/api/naming/remote/response/BatchInstanceResponse.java

@@ -16,25 +16,18 @@
 
 package com.alibaba.nacos.api.naming.remote.response;
 
-import com.alibaba.nacos.api.remote.response.Response;
-
 /**
  * batch instance response.
  *
  * @author <a href="mailto:[email protected]">chenhao26</a>
  */
-public class BatchInstanceResponse extends Response {
-
-    private String type;
+public class BatchInstanceResponse extends InstanceResponse {
 
     public BatchInstanceResponse() {
+        super();
     }
 
     public BatchInstanceResponse(String type) {
-        this.type = type;
-    }
-
-    public void setType(String type) {
-        this.type = type;
+        super(type);
     }
 }

api/src/main/java/com/alibaba/nacos/api/naming/remote/response/InstanceResponse.java

@@ -38,4 +38,7 @@ public void setType(String type) {
         this.type = type;
     }
 
+    public String getType() {
+        return type;
+    }
 }

client/src/main/java/com/alibaba/nacos/client/config/http/ServerHttpAgent.java

@@ -275,6 +275,7 @@ public void shutdown() throws NacosException {
         String className = this.getClass().getName();
         LOGGER.info("{} do shutdown begin", className);
         ConfigHttpClientManager.getInstance().shutdown();
+        serverListMgr.shutdown();
         LOGGER.info("{} do shutdown stop", className);
     }
 }

client/src/main/java/com/alibaba/nacos/client/config/impl/CacheData.java

@@ -111,6 +111,11 @@ public class CacheData {
      */
     private volatile boolean isSyncWithServer = false;
 
+    /**
+     * if is cache data is discard,need to remove.
+     */
+    private volatile boolean isDiscard = false;
+
     private String type;
 
     public boolean isInitializing() {
@@ -402,6 +407,14 @@ public void setSyncWithServer(boolean syncWithServer) {
         isSyncWithServer = syncWithServer;
     }
 
+    public boolean isDiscard() {
+        return isDiscard;
+    }
+
+    public void setDiscard(boolean discard) {
+        isDiscard = discard;
+    }
+
     public CacheData(ConfigFilterChainManager configFilterChainManager, String name, String dataId, String group) {
         this(configFilterChainManager, name, dataId, group, TenantUtil.getUserTenantForAcm());
     }

client/src/main/java/com/alibaba/nacos/client/config/impl/ClientWorker.java

@@ -126,11 +126,11 @@ public class ClientWorker implements Closeable {
     private int taskPenaltyTime;
 
     private boolean enableRemoteSyncConfig = false;
-
+    
     private static final int MIN_THREAD_NUM = 2;
-
+    
     private static final int THREAD_MULTIPLE = 1;
-
+    
     /**
      * Add listeners for data.
      *
@@ -146,6 +146,7 @@ public void addListeners(String dataId, String group, List<? extends Listener> l
             for (Listener listener : listeners) {
                 cache.addListener(listener);
             }
+            cache.setDiscard(false);
             cache.setSyncWithServer(false);
             agent.notifyListenConfig();
 
@@ -169,6 +170,7 @@ public void addTenantListeners(String dataId, String group, List<? extends Liste
             for (Listener listener : listeners) {
                 cache.addListener(listener);
             }
+            cache.setDiscard(false);
             cache.setSyncWithServer(false);
             agent.notifyListenConfig();
         }
@@ -196,6 +198,7 @@ public void addTenantListenersWithContent(String dataId, String group, String co
             for (Listener listener : listeners) {
                 cache.addListener(listener);
             }
+            cache.setDiscard(false);
             cache.setSyncWithServer(false);
             agent.notifyListenConfig();
         }
@@ -217,6 +220,7 @@ public void removeListener(String dataId, String group, Listener listener) {
                 cache.removeListener(listener);
                 if (cache.getListeners().isEmpty()) {
                     cache.setSyncWithServer(false);
+                    cache.setDiscard(true);
                     agent.removeCache(dataId, group);
                 }
             }
@@ -240,6 +244,7 @@ public void removeTenantListener(String dataId, String group, Listener listener)
                 cache.removeListener(listener);
                 if (cache.getListeners().isEmpty()) {
                     cache.setSyncWithServer(false);
+                    cache.setDiscard(true);
                     agent.removeCache(dataId, group);
                 }
             }
@@ -425,8 +430,8 @@ public ClientWorker(final ConfigFilterChainManager configFilterChainManager, Ser
     }
 
     private void refreshContentAndCheck(String groupKey, boolean notify) {
-        if (cacheMap.get() != null && cacheMap.get().containsKey(groupKey)) {
-            CacheData cache = cacheMap.get().get(groupKey);
+        CacheData cache = cacheMap.get().get(groupKey);
+        if (cache != null) {
             refreshContentAndCheck(cache, notify);
         }
     }
@@ -696,7 +701,7 @@ public void startInternal() {
                             continue;
                         }
                         executeConfigListen();
-                    } catch (Exception e) {
+                    } catch (Throwable e) {
                         LOGGER.error("[ rpc listen execute ] [rpc listen] exception", e);
                     }
                 }
@@ -733,7 +738,7 @@ public void executeConfigListen() {
                         }
                     }
 
-                    if (!CollectionUtils.isEmpty(cache.getListeners())) {
+                    if (!cache.isDiscard()) {
                         //get listen  config
                         if (!cache.isUseLocalConfigInfo()) {
                             List<CacheData> cacheDatas = listenCachesMap.get(String.valueOf(cache.getTaskId()));
@@ -744,7 +749,7 @@ public void executeConfigListen() {
                             cacheDatas.add(cache);
 
                         }
-                    } else if (CollectionUtils.isEmpty(cache.getListeners())) {
+                    } else if (cache.isDiscard()) {
 
                         if (!cache.isUseLocalConfigInfo()) {
                             List<CacheData> cacheDatas = removeListenCachesMap.get(String.valueOf(cache.getTaskId()));
@@ -779,7 +784,7 @@ public void executeConfigListen() {
                         RpcClient rpcClient = ensureRpcClient(taskId);
                         ConfigChangeBatchListenResponse configChangeBatchListenResponse = (ConfigChangeBatchListenResponse) requestProxy(
                                 rpcClient, configChangeListenRequest);
-                        if (configChangeBatchListenResponse != null && configChangeBatchListenResponse.isSuccess()) {
+                        if (configChangeBatchListenResponse.isSuccess()) {
 
                             Set<String> changeKeys = new HashSet<>();
                             //handle changed keys,notify listener
@@ -807,8 +812,8 @@ public void executeConfigListen() {
                                         if (!cacheData.getListeners().isEmpty()) {
 
                                             Long previousTimesStamp = timestampMap.get(groupKey);
-                                            if (previousTimesStamp != null && !cacheData.getLastModifiedTs().compareAndSet(previousTimesStamp,
-                                                    System.currentTimeMillis())) {
+                                            if (previousTimesStamp != null && !cacheData.getLastModifiedTs()
+                                                    .compareAndSet(previousTimesStamp, System.currentTimeMillis())) {
                                                 continue;
                                             }
                                             cacheData.setSyncWithServer(true);
@@ -844,7 +849,7 @@ public void executeConfigListen() {
                         if (removeSuccess) {
                             for (CacheData cacheData : removeListenCaches) {
                                 synchronized (cacheData) {
-                                    if (cacheData.getListeners().isEmpty()) {
+                                    if (cacheData.isDiscard()) {
                                         ClientWorker.this
                                                 .removeCache(cacheData.dataId, cacheData.group, cacheData.tenant);
                                     }
@@ -979,8 +984,8 @@ public ConfigResponse queryConfig(String dataId, String group, String tenant, lo
                 LOGGER.error("[{}] [sub-server-error]  dataId={}, group={}, tenant={}, code={}", this.getName(), dataId,
                         group, tenant, response);
                 throw new NacosException(response.getErrorCode(),
-                        "http error, code=" + response.getErrorCode() + ",msg=" + response.getMessage() + ",dataId=" + dataId + ",group=" + group
-                                + ",tenant=" + tenant);
+                        "http error, code=" + response.getErrorCode() + ",msg=" + response.getMessage() + ",dataId="
+                                + dataId + ",group=" + group + ",tenant=" + tenant);
 
             }
         }
@@ -1012,20 +1017,20 @@ private RequestResource resourceBuild(Request request) {
             if (request instanceof ConfigQueryRequest) {
                 String tenant = ((ConfigQueryRequest) request).getTenant();
                 String group = ((ConfigQueryRequest) request).getGroup();
-                String dataId = ((ConfigQueryRequest) request).getGroup();
+                String dataId = ((ConfigQueryRequest) request).getDataId();
                 return buildResource(tenant, group, dataId);
             }
             if (request instanceof ConfigPublishRequest) {
                 String tenant = ((ConfigPublishRequest) request).getTenant();
                 String group = ((ConfigPublishRequest) request).getGroup();
-                String dataId = ((ConfigPublishRequest) request).getGroup();
+                String dataId = ((ConfigPublishRequest) request).getDataId();
                 return buildResource(tenant, group, dataId);
             }
 
             if (request instanceof ConfigRemoveRequest) {
                 String tenant = ((ConfigRemoveRequest) request).getTenant();
                 String group = ((ConfigRemoveRequest) request).getGroup();
-                String dataId = ((ConfigRemoveRequest) request).getGroup();
+                String dataId = ((ConfigRemoveRequest) request).getDataId();
                 return buildResource(tenant, group, dataId);
             }
             return RequestResource.configBuilder().build();
@@ -1059,7 +1064,7 @@ public boolean publishConfig(String dataId, String group, String tenant, String
                 }
             } catch (Exception e) {
                 LOGGER.warn("[{}] [publish-single] error, dataId={}, group={}, tenant={}, code={}, msg={}",
-                        this.getName(), dataId, group, tenant, "unkonw", e.getMessage());
+                        this.getName(), dataId, group, tenant, "unknown", e.getMessage());
                 return false;
             }
         }

client/src/main/java/com/alibaba/nacos/client/config/impl/ServerListManager.java

@@ -223,24 +223,24 @@ public ServerListManager(Properties properties) throws NacosException {
     }
 
     private String initServerName(Properties properties) {
-        String serverName = "";
+        String serverName;
         //1.user define server name.
         if (properties != null && properties.containsKey(PropertyKeyConst.SERVER_NAME)) {
             serverName = properties.get(PropertyKeyConst.SERVER_NAME).toString();
         } else {
             // if fix url,use fix url join string.
             if (isFixed) {
                 serverName = FIXED_NAME + "-" + (StringUtils.isNotBlank(namespace) ? (StringUtils.trim(namespace) + "-")
-                        : "") + getFixedNameSuffix(serverUrls.toArray(new String[serverUrls.size()]));
+                        : "") + getFixedNameSuffix(serverUrls.toArray(new String[0]));
             } else {
                 //if use endpoint ,  use endpoint ,content path ,serverlist name
                 serverName = CUSTOM_NAME + "-" + String
                         .join("_", endpoint, String.valueOf(endpointPort), contentPath, serverListName) + (
                         StringUtils.isNotBlank(namespace) ? ("_" + StringUtils.trim(namespace)) : "");
             }
         }
-        serverName.replaceAll("\\/", "_");
-        serverName.replaceAll("\\:", "_");
+        serverName = serverName.replaceAll("\\/", "_");
+        serverName = serverName.replaceAll("\\:", "_");
 
         return serverName;
     }
@@ -254,8 +254,8 @@ private void initAddressServerUrl(Properties properties) {
                         ContextPathUtil.normalizeContextPath(this.contentPath), this.serverListName));
         boolean hasQueryString = false;
         if (StringUtils.isNotBlank(namespace)) {
-            addressServerUrlTem.append("?namespace=" + namespace);
-            hasQueryString = false;
+            addressServerUrlTem.append("?namespace=").append(namespace);
+            hasQueryString = true;
         }
         if (properties != null && properties.containsKey(PropertyKeyConst.ENDPOINT_QUERY_PARAMS)) {
             addressServerUrlTem

client/src/main/java/com/alibaba/nacos/client/constant/Constants.java

@@ -35,7 +35,7 @@ public static class SysEnv {
 
         public static final String JM_SNAPSHOT_PATH = "JM.SNAPSHOT.PATH";
 
-        public static final String NACOS_ENVS_SEARCH = "nacos.envs.search";
+        public static final String NACOS_ENV_FIRST = "nacos.env.first";
 
     }
 

client/src/main/java/com/alibaba/nacos/client/env/AbstractPropertySource.java

@@ -16,6 +16,8 @@
 
 package com.alibaba.nacos.client.env;
 
+import java.util.Properties;
+
 abstract class AbstractPropertySource {
 
     /**
@@ -31,4 +33,17 @@ abstract class AbstractPropertySource {
      */
     abstract String getProperty(String key);
 
+    /**
+     * Tests if the specified object is a key in this propertySource.
+     * @param key key – possible key
+     * @return true if and only if the specified object is a key in this propertySource, false otherwise.
+     */
+    abstract boolean containsKey(String key);
+
+    /**
+     * to properties.
+     * @return properties
+     */
+    abstract Properties asProperties();
+
 }