Java 类org.apache.log4j.or.ObjectRenderer 实例源码

@Test
public void noDelegationTest() {
    JCategory context = new JCategory();
    //instantiating categories
    TypeCategory<Animal> animalCategory = context.forClass(Animal.class); //type category for Animal
    TypeCategory<HasLegs> hasLegsCategory = context.forClass(HasLegs.class); //type category for HasLegs
    TypeCategory<Cat> catCategory = context.forClass(Cat.class); //type category for Cat

    //setting properties
    animalCategory.setProperty(OBJECT_RENDERER_KEY, new AnimalRenderer()); //ObjectRenderer property is an instance of AnimalRenderer for Animal
    hasLegsCategory.setProperty(OBJECT_RENDERER_KEY, new HasLegsRenderer()); //ObjectRenderer property is an instance of HasLegsRenderer for HasLegs

    //testing
    ObjectRenderer renderer = catCategory.getStrategy(ObjectRenderer.class);
    assertEquals("animal", renderer.doRender(new Cat()));
}

@Test
public void delegationTest() {
    JCategory context = new JCategory();
    //instantiating categories
    TypeCategory<Animal> animalCategory = context.forClass(Animal.class); //type category for Animal
    TypeCategory<HasLegs> hasLegsCategory = context.forClass(HasLegs.class); //type category for HasLegs
    TypeCategory<Cat> catCategory = context.forClass(Cat.class); //type category for Cat

    //setting properties
    animalCategory.setProperty(OBJECT_RENDERER_KEY, new DelegationAnimalRenderer()); //ObjectRenderer property is an instance of DelegationAnimalRenderer for Animal
    hasLegsCategory.setProperty(OBJECT_RENDERER_KEY, new HasLegsRenderer()); //ObjectRenderer property is an instance of HasLegsRenderer for HasLegs

    //testing
    ObjectRenderer renderer = catCategory.getStrategy(ObjectRenderer.class);
    assertEquals("has-legs", renderer.doRender(new Cat()));
}

public
void test1() {
  RendererMap map = new RendererMap();
  ObjectRenderer dr = map.getDefaultRenderer();
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, dr);
}

public
void test2() {
  RendererMap map = new RendererMap();
  map.put(Integer.class, ior);
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, ior);

}

public
void test3() {
  RendererMap map = new RendererMap();
  map.put(Number.class, ior);
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, ior);
}

public
void test4() {
  RendererMap map = new RendererMap();
  map.put(Object.class, oor);
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, oor);
}

public
void test5() {
  RendererMap map = new RendererMap();

  map.put(Object.class, oor);
  map.put(Number.class, nor);
  map.put(Integer.class, ior);

  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, ior);
}

public
void test6() {
  RendererMap map = new RendererMap();

  map.put(Object.class, oor);
  map.put(Number.class, nor);

  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, nor);
}

public
void test7() throws Exception {
  RendererMap map = new RendererMap();
  Class comparable = null; 
  try {
      comparable = getClass().forName("java.lang.Comparable");
  } catch(Exception ex) {
      //  likely JDK 1.1
      return;
  }
  map.put(comparable, cor);
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, cor);
}

public
void test8() {
  RendererMap map = new RendererMap();
  map.put(Serializable.class, sor); 
  ObjectRenderer r = map.get(Integer.class);
  assertEquals(r, sor);
}

public
void test9() {
  RendererMap map = new RendererMap();
  map.put(Y.class, yor); 
  ObjectRenderer r = map.get(B.class);
  assertEquals(r, yor);
}

public
void test10() {
  RendererMap map = new RendererMap();
  map.put(X.class, xor); 
  ObjectRenderer r = map.get(B.class);
  assertEquals(r, xor);
}

public
void setRenderer(Class renderedClass, ObjectRenderer renderer);

/**
   Add an object renderer for a specific class.
 */
public
void addRenderer(Class classToRender, ObjectRenderer or) {
  rendererMap.put(classToRender, or);
}

/**
   Used by subclasses to add a renderer to the hierarchy passed as parameter.
 */
public
void setRenderer(Class renderedClass, ObjectRenderer renderer) {
  rendererMap.put(renderedClass, renderer);
}

public
void setRenderer(Class renderedClass, ObjectRenderer renderer);

/**
   Add an object renderer for a specific class.
 */
public
void addRenderer(Class classToRender, ObjectRenderer or) {
  rendererMap.put(classToRender, or);
}

/**
   Used by subclasses to add a renderer to the hierarchy passed as parameter.
 */
public
void setRenderer(Class renderedClass, ObjectRenderer renderer) {
  rendererMap.put(renderedClass, renderer);
}

public
void setRenderer(Class renderedClass, ObjectRenderer renderer);

/**
   Add an object renderer for a specific class.
 */
public
void addRenderer(Class classToRender, ObjectRenderer or) {
  rendererMap.put(classToRender, or);
}

/**
   Used by subclasses to add a renderer to the hierarchy passed as parameter.
 */
public
void setRenderer(Class renderedClass, ObjectRenderer renderer) {
  rendererMap.put(renderedClass, renderer);
}