带有Jersey资源的HK2 MethodInterceptor

时间:2014-03-08 21:56:35

标签: java jersey aop jersey-2.0 hk2

如何设置aop MethodInterceptor以使用Jersey资源?

以下是我在this文档后尝试过的内容:

第1步 - 拦截服务

public class MyInterceptionService implements InterceptionService
{
    private final Provider<AuthFilter> authFilterProvider;

    @Inject
    public HK2MethodInterceptionService(Provider<AuthFilter> authFilterProvider)
    {
        this.authFilterProvider = authFilterProvider;
    }

    /**
     * Match any class.
     */
    @Override
    public Filter getDescriptorFilter()
    {
        return BuilderHelper.allFilter();
    }

    /**
     * Intercept all Jersey resource methods for security.
     */
    @Override
    @Nullable
    public List<MethodInterceptor> getMethodInterceptors(final Method method)
    {
        // don't intercept methods with PermitAll
        if (method.isAnnotationPresent(PermitAll.class))
        {
            return null;
        }

        return Collections.singletonList(new MethodInterceptor()
        {
            @Override
            public Object invoke(MethodInvocation methodInvocation) throws Throwable
            {
                if (!authFilterProvider.get().isAllowed(method))
                {
                    throw new ForbiddenException();
                }

                return methodInvocation.proceed();
            }
        });
    }

    /**
     * No constructor interception.
     */
    @Override
    @Nullable
    public List<ConstructorInterceptor> getConstructorInterceptors(Constructor<?> constructor)
    {
        return null;
    }
}

第2步 - 注册服务

public class MyResourceConfig extends ResourceConfig
{
    public MyResourceConfig()
    {
        packages("package.with.my.resources");

        // UPDATE: answer is remove this line
        register(MyInterceptionService.class);

        register(new AbstractBinder()
        {
            @Override
            protected void configure()
            {
                bind(AuthFilter.class).to(AuthFilter.class).in(Singleton.class);

                // UPDATE: answer is add the following line
                // bind(MyInterceptionService.class).to(InterceptionService.class).in(Singleton.class);
            }
        });
    }
}

但是这似乎不起作用,因为我的资源方法都没有被截获。这可能是因为我使用了@ManagedAsync我的所有资源吗?有什么想法吗?

另外,请不要建议ContainerRequestFilter。请参阅this question,了解我无法使用其中一个来处理安全性的原因。

1 个答案:

答案 0 :(得分:5)

我认为您可能希望改为添加到configure()语句中而不是调用register(MyInterceptionService.class):

bind(MyInterceptionService.class).to(InterceptionService.class).in(Singleton.class)

我不确定它会起作用,因为我自己没有尝试过,所以你的结果可能会有所不同lol