Tương tác OSGi và AspectJ

package org.o7planning.tutorial.osgidefineaspectj;

public aspect SumAspectj {
 
  before() : execution(* *.sum(..)) {
      System.out.println("Before execution sum");
  }
 
}

package org.o7planning.tutorial.osgidefineaspectj;

public class MathUtils {
   
   public static int sum(int a, int b) {
       return a + b;
   }
}

package org.o7planning.tutorial.osgidefineaspectj;

public class TestSumInternal {
   
   public static void main(String[] args) {
       
       int value= MathUtils.sum(10,20);
       System.out.println("Value ="+value);

   }

}

package org.o7planning.tutorial.affectedosgi;

public class Math2Utils {
   
   
   public static float sum(float a,float b)  {
       return a+b;
   }
   
   public static int sum(int a, int b)  {
       return a+b;
   }  
   
}

package org.o7planning.tutorial.affectedosgi;

import org.o7planning.tutorial.osgidefineaspectj.MathUtils;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class Activator implements BundleActivator {

   private static BundleContext context;

   static BundleContext getContext() {
       return context;
   }

   public void start(BundleContext bundleContext) throws Exception {
       Activator.context = bundleContext;

       this.testSumAspectj();
   }

   private void testSumAspectj() {
       System.out.println("-----------------------");
       int value1 = MathUtils.sum(100, 100);
       System.out.println("Value =" + value1);

       System.out.println("-----------------------");
       int value2 = Math2Utils.sum(100, 100);
       System.out.println("Value =" + value2);

       System.out.println("-----------------------");
       float value3 = Math2Utils.sum(100f, 100f);
       System.out.println("Value =" + value3);
   }

   public void stop(BundleContext bundleContext) throws Exception {
       Activator.context = null;
   }

}