Proguard 保留选项来处理 OSGi 声明式服务

Question

什么是用于 OSGi 声明式服务与 Proguard 混淆的 keep 选项

参考下面的例子，我需要保留DS相关的功能，不用Proguard删除它，因为它找不到参考

@Component
public class RandomApp {

    private RandomGenApi randomGenApi;

    @Reference
    public void setRandomGenService(RandomGenApi randomGenApi) {
        this.randomGenApi = randomGenApi;
    }
      
    
    @Activate
    void startRandomApp() {
        System.out.println("Startig RandomApp...");          

    }

Answer 1

我可以通过将 OSGi 服务定义为入口点来实现这一点。 这是要定义的保留选项

#Keep annotations.
-keepattributes *Annotation*

#Keep all Component classes
-keep @org.osgi.service.component.annotations.Component class *

#Kepp all Component classes member functions with OSGi specific annotations
-keepclassmembers @org.osgi.service.component.annotations.Component class * {
   #Keep all methods with annotatios Reference.
   @org.osgi.service.component.annotations.Reference *;
   #Keep all methods with annotatios Activate.
   @org.osgi.service.component.annotations.Activate *;   
}