2:57 p.m.
I'm trying to create ZIP files on-demand from the server and stream them
back to the browser, but I'm not sure the proper way to do this. The only
way I can think of is to use a `ZipOutputStream`, but that would be a
blocking operation. Is there a better way to do this?
11:46 p.m.
You could potentially adapt
io.undertow.conduits.DeflatingStreamSinkConduit, which uses a
java.util.zip.Deflater.
Stuart
On Fri, Sep 1, 2017 at 5:57 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
I'm trying to create ZIP files on-demand from the server and
stream them
back to the browser, but I'm not sure the proper way to do this. The only
way I can think of is to use a `ZipOutputStream`, but that would be a
blocking operation. Is there a better way to do this?
_______________________________________________
undertow-dev mailing list
undertow-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/undertow-dev
10:31 a.m.
I've looked at DeflatingStreamSinkConduit, but am at a loss to figure out
how to adapt this to streaming a zip file. Is there any other information
you could give me?
Thanks
On Thu, Aug 31, 2017 at 11:46 PM Stuart Douglas <sdouglas(a)redhat.com> wrote:
You could potentially adapt
io.undertow.conduits.DeflatingStreamSinkConduit, which uses a
java.util.zip.Deflater.
Stuart
On Fri, Sep 1, 2017 at 5:57 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
> I'm trying to create ZIP files on-demand from the server and stream them
> back to the browser, but I'm not sure the proper way to do this. The
only
> way I can think of is to use a `ZipOutputStream`, but that would be a
> blocking operation. Is there a better way to do this?
>
> _______________________________________________
> undertow-dev mailing list
> undertow-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/undertow-dev
4:39 p.m.
My bad, I did not read your post properly and was thinking of gzip.
I think you can still use ZipOutputStream though, it will only be
blocking if the underlying Stream is blocking, so using something like
a ByteArrayOutputStream would make the operation non blocking. If you
want to avoid buffering the whole zip in memory you could potentially
alternate between writing data to the ZipOutputStream and then taking
anything written to the ByteArrayOutputStream and flushing it to the
response channel.
Stuart
On Wed, Sep 6, 2017 at 1:31 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
I've looked at DeflatingStreamSinkConduit, but am at a loss to
figure out
how to adapt this to streaming a zip file. Is there any other information
you could give me?
Thanks
On Thu, Aug 31, 2017 at 11:46 PM Stuart Douglas <sdouglas(a)redhat.com> wrote:
>
> You could potentially adapt
> io.undertow.conduits.DeflatingStreamSinkConduit, which uses a
> java.util.zip.Deflater.
>
> Stuart
>
> On Fri, Sep 1, 2017 at 5:57 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
> > I'm trying to create ZIP files on-demand from the server and stream them
> > back to the browser, but I'm not sure the proper way to do this. The
> > only
> > way I can think of is to use a `ZipOutputStream`, but that would be a
> > blocking operation. Is there a better way to do this?
> >
> > _______________________________________________
> > undertow-dev mailing list
> > undertow-dev(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/undertow-dev
8:38 p.m.
Great, thanks! Are there any examples of using an OutputStream with
Undertow?
On Tue, Sep 5, 2017, 4:39 PM Stuart Douglas <sdouglas(a)redhat.com> wrote:
My bad, I did not read your post properly and was thinking of gzip.
I think you can still use ZipOutputStream though, it will only be
blocking if the underlying Stream is blocking, so using something like
a ByteArrayOutputStream would make the operation non blocking. If you
want to avoid buffering the whole zip in memory you could potentially
alternate between writing data to the ZipOutputStream and then taking
anything written to the ByteArrayOutputStream and flushing it to the
response channel.
Stuart
On Wed, Sep 6, 2017 at 1:31 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
> I've looked at DeflatingStreamSinkConduit, but am at a loss to figure out
> how to adapt this to streaming a zip file. Is there any other
information
> you could give me?
>
> Thanks
>
> On Thu, Aug 31, 2017 at 11:46 PM Stuart Douglas <sdouglas(a)redhat.com>
wrote:
>>
>> You could potentially adapt
>> io.undertow.conduits.DeflatingStreamSinkConduit, which uses a
>> java.util.zip.Deflater.
>>
>> Stuart
>>
>> On Fri, Sep 1, 2017 at 5:57 AM, Hicks, Matt <matt(a)matthicks.com> wrote:
>> > I'm trying to create ZIP files on-demand from the server and stream
them
>> > back to the browser, but I'm not sure the proper way to do this. The
>> > only
>> > way I can think of is to use a `ZipOutputStream`, but that would be a
>> > blocking operation. Is there a better way to do this?
>> >
>> > _______________________________________________
>> > undertow-dev mailing list
>> > undertow-dev(a)lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/undertow-dev
2:40 a.m.
you can send async with exchange.getResponseSender().send(…, callback)
On 06.09.2017, at 03:38, Hicks, Matt <matt(a)matthicks.com>
wrote:
Great, thanks! Are there any examples of using an OutputStream with Undertow?
On Tue, Sep 5, 2017, 4:39 PM Stuart Douglas <sdouglas(a)redhat.com
<mailto:sdouglas@redhat.com>> wrote:
My bad, I did not read your post properly and was thinking of gzip.
I think you can still use ZipOutputStream though, it will only be
blocking if the underlying Stream is blocking, so using something like
a ByteArrayOutputStream would make the operation non blocking. If you
want to avoid buffering the whole zip in memory you could potentially
alternate between writing data to the ZipOutputStream and then taking
anything written to the ByteArrayOutputStream and flushing it to the
response channel.
Stuart
On Wed, Sep 6, 2017 at 1:31 AM, Hicks, Matt <matt(a)matthicks.com
<mailto:matt@matthicks.com>> wrote:
> I've looked at DeflatingStreamSinkConduit, but am at a loss to figure out
> how to adapt this to streaming a zip file. Is there any other information
> you could give me?
>
> Thanks
>
> On Thu, Aug 31, 2017 at 11:46 PM Stuart Douglas <sdouglas(a)redhat.com
<mailto:sdouglas@redhat.com>> wrote:
>>
>> You could potentially adapt
>> io.undertow.conduits.DeflatingStreamSinkConduit, which uses a
>> java.util.zip.Deflater.
>>
>> Stuart
>>
>> On Fri, Sep 1, 2017 at 5:57 AM, Hicks, Matt <matt(a)matthicks.com
<mailto:matt@matthicks.com>> wrote:
>> > I'm trying to create ZIP files on-demand from the server and stream
them
>> > back to the browser, but I'm not sure the proper way to do this. The
>> > only
>> > way I can think of is to use a `ZipOutputStream`, but that would be a
>> > blocking operation. Is there a better way to do this?
>> >
>> > _______________________________________________
>> > undertow-dev mailing list
>> > undertow-dev(a)lists.jboss.org <mailto:undertow-dev@lists.jboss.org>
>> > https://lists.jboss.org/mailman/listinfo/undertow-dev
<https://lists.jboss.org/mailman/listinfo/undertow-dev>
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participants (3)
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Stuart Douglas