数据库驱动的功能切换

Question

我想启用基于数据库值的新功能。如果为 feature 设置了数据库值，则应启用新代码。否则它应该切换并流向旧代码。有没有办法在 Java/Spring 中完成这个？我不想访问数据库 frequently.I 我正在考虑在请求开始时调用一次。这有什么例子吗？如果是这样，请告诉我。谢谢

Answer 1

创建功能 class 实施：

public enum CustomFeatures implements Feature {
    @Label("Activates customFeature")
    MY_CUSTOM_FEATURE;

    public boolean isActive() {
        return FeatureContext.getFeatureManager().isActive(this);
    }
}

创建功能提供者：

@Bean
public FeatureProvider featureProvider() {
    return new EnumBasedFeatureProvider(CustomFeatures.class);
}

创建实体和存储库：

@Entity
public class Feature {

    private String name;
    private Boolean active;
    // getters-setters
}

创建将查询数据库并设置新功能状态的@Component

@Component
public class FeatureToggler {

   private final FeatureRepository featureRepository;
   private final FeatureManager featureManager;

   private FeatureToggler(FeatureRepository featureRepository, FeatureManager featureManager) {
      this.featureRepository = featureRepository;
      this.featureManager = featureManager;
   }

   @Schedule(fixedRate=60000)
   public void refreshFeatureToggles() {
        featureManager.setFeatureState(new FeatureState(CustomFeatures.MY_CUSTOM_FEATURE, featureRepository.findByName().isActive);
   }


}

现在您可以像这样检查功能是否启用：

if(CustomFeatures.MY_CUSTOM_FEATURE.isActive()) {
}

或使用Spring方面..

数据库驱动的功能切换

Database driven feature toggle

java

spring

featuretoggle