check the required fields of polaris when the config mode starts

kernel/dynamic/api/src/main/java/cn/hippo4j/threadpool/dynamic/api/BootstrapPropertiesInterface.java

@@ -101,4 +101,11 @@ public interface BootstrapPropertiesInterface {
         return null;
     }
 
+    /**
+     * Get Polaris.
+     */
+    default Map<String, String> getPolaris() {
+        return null;
+    }
+
 }

kernel/dynamic/mode/config/src/main/java/cn/hippo4j/threadpool/dynamic/mode/config/properties/BootstrapConfigProperties.java

@@ -76,6 +76,11 @@ public class BootstrapConfigProperties implements BootstrapPropertiesInterface {
      */
     private Map<String, String> etcd;
 
+    /**
+     * polaris config
+     */
+    private Map<String, String> polaris;
+
     /**
      * Web config
      *

threadpool/core/src/main/java/cn/hippo4j/core/enable/BeforeCheckConfiguration.java

@@ -144,6 +144,33 @@ public class BeforeCheckConfiguration {
                         }
                     }
 
+                    Map<String, String> polaris = properties.getPolaris();
+                    if (MapUtil.isNotEmpty(polaris)) {
+                        String namespace = polaris.get("namespace");
+                        if (StringUtil.isBlank(namespace)) {
+                            throw new ConfigEmptyException(
+                                    "Web server failed to start. The dynamic thread pool polaris namespace is empty.",
+                                    "Please check whether the [spring.dynamic.thread-pool.polaris.namespace] configuration is empty or an empty string.");
+                        }
+                        String fileGroup = polaris.get("file.group");
+                        if (StringUtil.isBlank(fileGroup)) {
+                            throw new ConfigEmptyException(
+                                    "Web server failed to start. The dynamic thread pool polaris file group is empty.",
+                                    "Please check whether the [spring.dynamic.thread-pool.polaris.file.group] configuration is empty or an empty string.");
+                        }
+                        String fileName = polaris.get("file.name");
+                        if (StringUtil.isBlank(fileName)) {
+                            throw new ConfigEmptyException(
+                                    "Web server failed to start. The dynamic thread pool polaris file name is empty.",
+                                    "Please check whether the [spring.dynamic.thread-pool.polaris.file.name] configuration is empty or an empty string.");
+                        }
+                        String fileType = polaris.get("file.type");
+                        if (StringUtil.isBlank(fileType)) {
+                            throw new ConfigEmptyException(
+                                    "Web server failed to start. The dynamic thread pool polaris file type is empty.",
+                                    "Please check whether the [spring.dynamic.thread-pool.polaris.file.type] configuration is empty or an empty string.");
+                        }
+                    }
                     break;
                 }
                 default: