4:35 a.m.
I need to share the same instance of a "Util" object to reuse it in all the
handleRequest calls. Where is the best place to store the Util object
instance? The Util class is not thread safe, so I should have one instance
for each client thread.
Thanks,
Steve
6:19 a.m.
If you want one per thread just use ThreadLocal.
Stuart
On Thu, 5 Apr. 2018, 7:42 pm Steve Hu, <stevehu(a)gmail.com> wrote:
I need to share the same instance of a "Util" object to
reuse it in all
the handleRequest calls. Where is the best place to store the Util object
instance? The Util class is not thread safe, so I should have one
instance for each client thread.
Thanks,
Steve
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undertow-dev(a)lists.jboss.org
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6:36 a.m.
I was thinking about ThreadLocal as it is very popular in Java EE but one
request might be handled by multiple threads from IO thread to worker
thread which means you have to instantiate as many objects as the number of
total threads. Just trying to find if there are any better solutions.
Thanks for your confirmation.
On Thu, Apr 5, 2018 at 7:19 AM, Stuart Douglas <sdouglas(a)redhat.com> wrote:
If you want one per thread just use ThreadLocal.
Stuart
On Thu, 5 Apr. 2018, 7:42 pm Steve Hu, <stevehu(a)gmail.com> wrote:
> I need to share the same instance of a "Util" object to reuse it in all
> the handleRequest calls. Where is the best place to store the Util object
> instance? The Util class is not thread safe, so I should have one
> instance for each client thread.
>
> Thanks,
>
> Steve
>
> _______________________________________________
> undertow-dev mailing list
> undertow-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/undertow-dev
6:50 a.m.
If it's actually a util object can you make it stateless so that it is
thread safe? Maybe add an additional context type object for state if you
really need it. Attaching it to the exchange as an attachment could work.
On Thu, Apr 5, 2018 at 7:36 AM, Steve Hu <stevehu(a)gmail.com> wrote:
I was thinking about ThreadLocal as it is very popular in Java EE but
one
request might be handled by multiple threads from IO thread to worker
thread which means you have to instantiate as many objects as the number of
total threads. Just trying to find if there are any better solutions.
Thanks for your confirmation.
On Thu, Apr 5, 2018 at 7:19 AM, Stuart Douglas <sdouglas(a)redhat.com>
wrote:
> If you want one per thread just use ThreadLocal.
>
> Stuart
>
> On Thu, 5 Apr. 2018, 7:42 pm Steve Hu, <stevehu(a)gmail.com> wrote:
>
>> I need to share the same instance of a "Util" object to reuse it in
all
>> the handleRequest calls. Where is the best place to store the Util object
>> instance? The Util class is not thread safe, so I should have one
>> instance for each client thread.
>>
>> Thanks,
>>
>> Steve
>>
>> _______________________________________________
>> undertow-dev mailing list
>> undertow-dev(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/undertow-dev
>
>
_______________________________________________
undertow-dev mailing list
undertow-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/undertow-dev
7:21 a.m.
Thanks. This is another option to explore. The question was asked on behalf
of another user on another forum. I am going to find more info about the
use case. Will pass your answers to him.
On Thu, Apr 5, 2018, 7:50 AM Bill O'Neil, <bill(a)dartalley.com> wrote:
If it's actually a util object can you make it stateless so that
it is
thread safe? Maybe add an additional context type object for state if you
really need it. Attaching it to the exchange as an attachment could work.
On Thu, Apr 5, 2018 at 7:36 AM, Steve Hu <stevehu(a)gmail.com> wrote:
> I was thinking about ThreadLocal as it is very popular in Java EE but one
> request might be handled by multiple threads from IO thread to worker
> thread which means you have to instantiate as many objects as the number of
> total threads. Just trying to find if there are any better solutions.
> Thanks for your confirmation.
>
> On Thu, Apr 5, 2018 at 7:19 AM, Stuart Douglas <sdouglas(a)redhat.com>
> wrote:
>
>> If you want one per thread just use ThreadLocal.
>>
>> Stuart
>>
>> On Thu, 5 Apr. 2018, 7:42 pm Steve Hu, <stevehu(a)gmail.com> wrote:
>>
>>> I need to share the same instance of a "Util" object to reuse it in
all
>>> the handleRequest calls. Where is the best place to store the Util object
>>> instance? The Util class is not thread safe, so I should have one
>>> instance for each client thread.
>>>
>>> Thanks,
>>>
>>> Steve
>>>
>>> _______________________________________________
>>> undertow-dev mailing list
>>> undertow-dev(a)lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/undertow-dev
>>
>>
>
> _______________________________________________
> undertow-dev mailing list
> undertow-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/undertow-dev
>
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participants (3)
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Stuart Douglas