Re: [aspectj-users] How to refer to an introduced field from an advice?

[Andy Clement <andrew.clement@xxxxxxxxx>]

Hi Wim,

Did you get an answer to this?  Have you tried this, which gets the
instance and then accesses the flags through it.

    pointcut indexingMethod(JMXStorageService instance):execution(*
StorageServiceImpl.Indexer.doIndexing())  && this(instance) ;

    void around(JMXStorageService instance):indexingMethod(instance){
       instance.m_indexingStarted = true;
        long startTime = System.currentTimeMillis();
        proceed(instance);
        instance.m_indexingDurationInMs = System.currentTimeMillis() -
startTime;
        instance.m_indexingDone = true;
    }


Andy

2009/12/22 Wim Deblauwe <wim.deblauwe@xxxxxxxxx>:
> Hi,
>
> I want to add some profiling to a (Spring) service I have. So far, I have
> this:
>
> public aspect StorageServiceJmx
> {
>     declare parents : StorageServiceImpl implements JMXStorageService;
>
>     declare @type : StorageServiceImpl : @ManagedResource(objectName =
> "com.traficon.tmsng.server.common.storage:name=storageService");
>
>     public interface JMXStorageService extends StorageService
>     {
>         boolean isIndexingStarted();
>
>         boolean isIndexingDone();
>
>         long getIndexingDurationInMs();
>     }
>
>     private boolean JMXStorageService.m_indexingStarted = false;
>     private boolean JMXStorageService.m_indexingDone = false;
>     private long JMXStorageService.m_indexingDurationInMs = -1;
>
>
>     @ManagedAttribute
>     public boolean JMXStorageService.isIndexingStarted()
>     {
>         return m_indexingStarted;
>     }
>
>     @ManagedAttribute
>     public boolean JMXStorageService.isIndexingDone()
>     {
>         return m_indexingDone;
>     }
>
>     @ManagedAttribute
>     public long JMXStorageService.getIndexingDurationInMs()
>     {
>         return m_indexingDurationInMs;
>     }
>
>     pointcut indexingMethod():execution(*
> StorageServiceImpl.Indexer.doIndexing());
>
>     void around():indexingMethod(){
>         m_indexingStarted = true;
>         long startTime = System.currentTimeMillis();
>         proceed();
>         m_indexingDurationInMs = System.currentTimeMillis() - startTime;
>         m_indexingDone = true;
>     }
>
> }
>
> I have a class called 'StorageServiceImpl' that I want to make JMX enabled.
> Then I also add 3 methods and 3 fields via ITD. The problem is now in the
> around advice. The pointcut refers to a private method in a private inner
> class of StorageServiceImpl. In my around advice, I want to update the
> private fields I have introduced.
>
> How do I get a reference to the JMXStorageService in the around advice so I
> can set the fields?
>
> regards,
>
> Wim
>
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