java - 如何从 EJB 计时器调用 @RolesAllowed protected 方法？

Question

我有一个用 @RolesAllowed 注释的方法，这个方法需要从位于另一个 Ejb 中的计时器 (@Schedule) 调用。但我只得到授权异常:WARNUNG: javax.ejb.AccessLocalException: Client not authorized for this invocation

 @RolesAllowed("user")
 @Stateless
 public class RatingService {
    public void recalculateRating() {...}
 }

 @Singleton
 @Startup     
 public class TimerService {

     @EJB private RatingService ratingService;

     @Schedule(minute = "0", hour = "*")
     public void timerTriggeredRecalculate() {        
          this.ratingService.recalculateRating();
     }
 }

我接受这个异常，但是如何从计时器调用一个@RolesAllowed protected 方法？

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我还尝试将 @RunAs("user") 添加到 TimerService 类。但后来我得到了这个异常(exception):

SCHWERWIEGEND: SECEJB9000: Exception while running pre-invoke
java.lang.NullPointerException
    at java.util.Arrays$ArrayList.<init>(Arrays.java:3357)
    at java.util.Arrays.asList(Arrays.java:3343)
    at com.sun.enterprise.security.auth.realm.file.FileRealm.getGroupNames(FileRealm.java:291)
    at com.sun.enterprise.security.auth.login.LoginContextDriver.loginPrincipal(LoginContextDriver.java:294)
    at org.glassfish.ejb.security.application.EJBSecurityManager$2.run(EJBSecurityManager.java:825)
    at com.sun.enterprise.security.common.AppservAccessController.doPrivileged(AppservAccessController.java:61)
    at org.glassfish.ejb.security.application.EJBSecurityManager.loginForRunAs(EJBSecurityManager.java:823)
    at org.glassfish.ejb.security.application.EJBSecurityManager.preInvoke(EJBSecurityManager.java:791)
    at org.glassfish.ejb.security.application.EjbSecurityComponentInvocationHandler$1.beforePreInvoke(EjbSecurityComponentInvocationHandler.java:84)
    at org.glassfish.api.invocation.InvocationManagerImpl.preInvoke(InvocationManagerImpl.java:156)
    at com.sun.ejb.containers.AbstractSingletonContainer.createSingletonEJB(AbstractSingletonContainer.java:487)
    at com.sun.ejb.containers.AbstractSingletonContainer.access$100(AbstractSingletonContainer.java:79)
    at com.sun.ejb.containers.AbstractSingletonContainer$SingletonContextFactory.create(AbstractSingletonContainer.java:719)
    at com.sun.ejb.containers.AbstractSingletonContainer.instantiateSingletonInstance(AbstractSingletonContainer.java:451)
    at org.glassfish.ejb.startup.SingletonLifeCycleManager.initializeSingleton(SingletonLifeCycleManager.java:216)
    at org.glassfish.ejb.startup.SingletonLifeCycleManager.initializeSingleton(SingletonLifeCycleManager.java:177)
    at org.glassfish.ejb.startup.SingletonLifeCycleManager.doStartup(SingletonLifeCycleManager.java:155)
    at org.glassfish.ejb.startup.EjbApplication.start(EjbApplication.java:177)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:662)

服务器是 Glassfish 3.1.2

Answer 1

您需要使用带有注释的 EJB @RunAs。如果计时器方法是 TimerService EJB 公开的唯一方法，那么您可以将 @RunAs 直接添加到该类。否则，您将需要创建一个具有 @RunAs 的中间 PrivilegedRatingService EJB。

(顺便说一句，考虑到与 javax.ejb.TimerService 的冲突，TimerService 可能不是 EJB 类名的一个糟糕选择。)