Add TripleConfig to ProtocolConfig as nest configuration (#14077)

* Add TripleConfig to ProtocolConfig as nest configuration

* Fix compile issue

* Use default protocol config

* Format code

* Handle the situation where ProtocolConfig is not set

* Follow the old rules and fix some sonar issues

* Add checkDefault method

* Refresh when uninitialized

* Remove needRefresh

---------

Co-authored-by: earthchen <earthchen1996@gmail.com>

dubbo-common/src/main/java/org/apache/dubbo/config/ProtocolConfig.java

@@ -19,6 +19,8 @@
 import org.apache.dubbo.common.serialization.PreferSerializationProvider;
 import org.apache.dubbo.common.utils.CollectionUtils;
 import org.apache.dubbo.common.utils.StringUtils;
+import org.apache.dubbo.config.nested.TripleConfig;
+import org.apache.dubbo.config.support.Nested;
 import org.apache.dubbo.config.support.Parameter;
 import org.apache.dubbo.rpc.model.ApplicationModel;
 
@@ -236,6 +238,9 @@ public class ProtocolConfig extends AbstractConfig {
      */
     private String jsonCheckLevel;
 
+    @Nested
+    private TripleConfig triple;
+
     public ProtocolConfig() {}
 
     public ProtocolConfig(ApplicationModel applicationModel) {
@@ -277,6 +282,11 @@ protected void checkDefault() {
                             .getBean(PreferSerializationProvider.class)
                             .getPreferSerialization();
         }
+
+        if (triple == null) {
+            triple = new TripleConfig();
+        }
+        triple.checkDefault();
     }
 
     @Parameter(excluded = true)
@@ -621,6 +631,14 @@ public void setExtProtocol(String extProtocol) {
         this.extProtocol = extProtocol;
     }
 
+    public TripleConfig getTriple() {
+        return triple;
+    }
+
+    public void setTriple(TripleConfig triple) {
+        this.triple = triple;
+    }
+
     public void mergeProtocol(ProtocolConfig sourceConfig) {
         if (sourceConfig == null) {
             return;

dubbo-common/src/main/java/org/apache/dubbo/config/context/AbstractConfigManager.java

@@ -419,7 +419,7 @@ static <C extends AbstractConfig> List<C> getDefaultConfigs(Map<String, C> confi
         List<C> list = configsMap.values().stream()
                 .filter(c -> TRUE.equals(AbstractConfigManager.isDefaultConfig(c)))
                 .collect(Collectors.toList());
-        if (list.size() > 0) {
+        if (!list.isEmpty()) {
             return list;
         }
 
@@ -635,10 +635,7 @@ protected <T extends AbstractConfig> void checkDefaultAndValidateConfigs(Class<T
      * @return
      */
     protected <T extends AbstractConfig> boolean isNeedValidation(T config) {
-        if (config instanceof MetadataReportConfig) {
-            return false;
-        }
-        return true;
+        return !(config instanceof MetadataReportConfig);
     }
 
     private ConfigValidator getConfigValidator() {
@@ -656,14 +653,11 @@ private ConfigValidator getConfigValidator() {
      * @return
      */
     protected <T extends AbstractConfig> boolean isRequired(Class<T> clazz) {
-        if (clazz == RegistryConfig.class
-                || clazz == MetadataReportConfig.class
-                || clazz == MonitorConfig.class
-                || clazz == MetricsConfig.class
-                || clazz == TracingConfig.class) {
-            return false;
-        }
-        return true;
+        return clazz != RegistryConfig.class
+                && clazz != MetadataReportConfig.class
+                && clazz != MonitorConfig.class
+                && clazz != MetricsConfig.class
+                && clazz != TracingConfig.class;
     }
 
     private <T extends AbstractConfig> boolean shouldAddDefaultConfig(Class<T> clazz) {

dubbo-common/src/main/java/org/apache/dubbo/config/context/ConfigManager.java

@@ -197,6 +197,21 @@ public Optional<ProtocolConfig> getProtocol(String idOrName) {
         return getConfig(ProtocolConfig.class, idOrName);
     }
 
+    public ProtocolConfig getOrAddProtocol(String idOrName) {
+        Optional<ProtocolConfig> protocol = getProtocol(idOrName);
+        if (protocol.isPresent()) {
+            return protocol.get();
+        }
+        ProtocolConfig protocolConfig = new ProtocolConfig(idOrName);
+        addProtocol(protocolConfig);
+        // addProtocol triggers refresh when other protocols exist in the ConfigManager.
+        // So refresh is only done when ProtocolConfig is not refreshed.
+        if (!protocolConfig.isRefreshed()) {
+            protocolConfig.refresh();
+        }
+        return protocolConfig;
+    }
+
     public List<ProtocolConfig> getDefaultProtocols() {
         return getDefaultConfigs(ProtocolConfig.class);
     }