Fix code formatting

Author: Zhaowei-Zhang-27

be/src/util/metrics.cpp

@@ -325,11 +325,10 @@ std::string MetricRegistry::to_prometheus(bool with_tablet_metrics) const {
     // Reorder by MetricPrototype
     EntityMetricsByType entity_metrics_by_types;
     std::lock_guard<std::mutex> l1(_lock);
-    
-    // 关键：在这里就确保 _name 不为空
+
     std::string registry_name = _name.empty() ? "unknown" : _name;
     const char* safe_name_ptr = registry_name.c_str();
-    
+
     for (const auto& entity : _entities) {
         if (entity.first->_type == MetricEntityType::kTablet && !with_tablet_metrics) {
             continue;
@@ -359,8 +358,8 @@ std::string MetricRegistry::to_prometheus(bool with_tablet_metrics) const {
             continue;
         }
 
-        const std::string& g_str = proto->group_name;  
-        const std::string& n_str = proto->name;       
+        const std::string& g_str = proto->group_name;
+        const std::string& n_str = proto->name;
 
         std::string metric_name = registry_name + "_" + g_str + "_" + n_str;
 
@@ -372,10 +371,9 @@ std::string MetricRegistry::to_prometheus(bool with_tablet_metrics) const {
             if (entity_metric.second == nullptr || entity_metric.first == nullptr) {
                 continue;
             }
-        
-            ss << entity_metric.second->to_prometheus(metric_name, 
-                                                 entity_metric.first->_labels,
-                                                 proto->labels);
+
+            ss << entity_metric.second->to_prometheus(metric_name, entity_metric.first->_labels,
+                                                      proto->labels);
         }
     }
 

be/test/util/metrics_test.cpp

@@ -493,14 +493,16 @@ TEST_F(MetricsTest, PrometheusDuplicateTypeFix) {
         // 1. Create the first entity and register a metric with a group name
         auto entity1 = registry.register_entity("entity1");
         // Using MetricPrototype is the "official way" in Doris metrics_test
-        MetricPrototype requests_type(MetricType::COUNTER, MetricUnit::OPERATIONS, "requests_total", "", "engine_requests");
+        MetricPrototype requests_type(MetricType::COUNTER, MetricUnit::OPERATIONS, "requests_total",
+                                      "", "engine_requests");
         IntCounter* m1 = (IntCounter*)entity1->register_metric<IntCounter>(&requests_type);
         m1->increment(1);
 
         // 2. Create the second entity and register a metric with a DIFFERENT name to break continuity
         auto entity2 = registry.register_entity("entity2");
-        MetricPrototype other_type(MetricType::COUNTER, MetricUnit::OPERATIONS, "other_metric", "", "");
-        IntCounter* m2 = (IntCounter*)entity2->register_metric<IntCounter>(&other_type);  // 修复：使用 register_metric
+        MetricPrototype other_type(MetricType::COUNTER, MetricUnit::OPERATIONS, "other_metric", "",
+                                   "");
+        IntCounter* m2 = (IntCounter*)entity2->register_metric<IntCounter>(&other_type);
         m2->increment(5);
 
         // 3. Create the third entity and register the SAME group name metric again
@@ -515,9 +517,9 @@ TEST_F(MetricsTest, PrometheusDuplicateTypeFix) {
         // Verification: Count the occurrences of "# TYPE test_registry_engine_requests counter"
         // In your official snippet, the format is: # TYPE {registry_name}_{group_name} {type}
         std::string target_type_line = "# TYPE test_registry_engine_requests counter";
-        
+
         int occurrences = 0;
-        size_t pos = 0;  // 修复：使用 size_t 而不是 std::string::size_t
+        size_t pos = 0;
         while ((pos = output.find(target_type_line, pos)) != std::string::npos) {
             occurrences++;
             pos += target_type_line.length();
@@ -533,4 +535,3 @@ TEST_F(MetricsTest, PrometheusDuplicateTypeFix) {
     }
 }
 } // namespace doris
-