import java.lang.reflect.Constructor;

public class OperationInvokeInterceptor implements Interceptor {
  private Context context;

  @Override
  public boolean before() {
    System.out.println(DateTimeHelper.now() + " - " + getClass().getName()
        + " before - création dynamique de l'instance de " + context.getClasseName());
    return false;
  }

  @Override
  public Object intercept(Context context) throws Exception {
    this.context = context;

    before();

    Class<?> classe = Class.forName("Operation" + context.getClasseName());

    Constructor<?> methodCtr = classe.getConstructor(new Class[] {});
    Operation op = (Operation) methodCtr.newInstance();

    Object ob = op.execute(context.getData());
    after();

    return ob;
  }

  @Override
  public boolean after() {
      System.out.println(DateTimeHelper.now() + " - " + getClass().getName() + " after");
      return false;
  }
}