spring autowire stuff

AutowireHelper.java

/**
 * Helper class which is able to autowire a specified class. It holds a static reference to the {@link org
 * .springframework.context.ApplicationContext}.
 */
@Component
public final class AutowireHelper implements ApplicationContextAware {
 
    private static final AutowireHelper INSTANCE = new AutowireHelper();
    private static ApplicationContext applicationContext;
 
    private AutowireHelper() {
    }
 
    /**
     * Tries to autowire the specified instance of the class if one of the specified beans which need to be autowired
     * are null.
     *
     * @param classToAutowire the instance of the class which holds @Autowire annotations
     * @param beansToAutowireInClass the beans which have the @Autowire annotation in the specified {#classToAutowire}
     */
    public static void autowire(Object classToAutowire, Object... beansToAutowireInClass) {
        for (Object bean : beansToAutowireInClass) {
            if (bean == null) {
                applicationContext.getAutowireCapableBeanFactory().autowireBean(classToAutowire);
                return;
            }
        }
    }
    
    public static void autowire(Object classToAutowire) {
    	List<Object> beansToAutowireInClass = new ArrayList<Object>();
    	for(Field field  : classToAutowire.getClass().getDeclaredFields())
    	{
    		if (field.isAnnotationPresent(Inject.class))
    		{
    			try {
    				field.setAccessible(true);
					Object o = field.get(classToAutowire);
					beansToAutowireInClass.add(o);
				} catch (IllegalArgumentException e) {
					Log.warn("illegal argument", e);
				} catch (IllegalAccessException e) {
					Log.warn("illegal access", e);
				}
    		}
    	}
    	
        for (Object bean : beansToAutowireInClass) {
            if (bean == null) {
                applicationContext.getAutowireCapableBeanFactory().autowireBean(classToAutowire);
                return;
            }
        }
    }
 
    @Override
    public void setApplicationContext(final ApplicationContext applicationContext) {
        AutowireHelper.applicationContext = applicationContext;
    }
 
    /**
     * @return the singleton instance.
     */
    public static AutowireHelper getInstance() {
        return INSTANCE;
    }
 
}