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Posted to users@qpid.apache.org by Matt Broadstone <mb...@gmail.com> on 2016/04/01 16:30:25 UTC
Re: Need Help!: Example of the use of Variant Type
On Fri, Apr 1, 2016 at 10:21 AM, Flores, Paul A. <PA...@saic.com>
wrote:
> Specifically I am looking at example for either how to "extract" a map
> from a Variant (map<string,string>) or to use map.find()?
>
>
>
> Could not find example on how to use/access Variant type data.
>
>
>
> Any help is appreciated.
>
>
>
> Paul
>
>
>
Hey Paul,
I've got two example utilities we use for testing in our system posted on
this gist: https://gist.github.com/mbroadst/d7bfefb0589a3296ecca55f36af6b3f9.
They convert between JSON and the variant types using the qpid messaging
c++ libraries, hopefully this should give some insight into how to play
around with the variant types.
Regards,
Matt
RE: Need Help!: Example of the use of Variant Type
Posted by "Flores, Paul A." <PA...@SAIC.COM>.
An adaptation of what was shared with me by Matt (Thanks!) it compiles and appears to work!
std::map<std::string,std::string> rtnMapfromVar(const Variant::Map &map){
std::map<std::string,std::string> results;
Variant::Map::const_iterator it;
for (it =map.begin(); it != map.end();++it){
std::string key=(*it).first;
Variant variant=(*it).second;
results[key]=variant.asString();
}
return results;
}
________________________________________
From: Gordon Sim [gsim@redhat.com]
Sent: Friday, April 01, 2016 10:13 AM
To: users@qpid.apache.org
Subject: Re: Need Help!: Example of the use of Variant Type
On 01/04/16 15:45, Flores, Paul A. wrote:
> Thanks for the example. I was hoping for something a whole lot simpler. It appears to be a royal pain!
>
> Hopefully there is a simplistic example I can implement for my client! Anyone else?
https://svn.apache.org/viewvc/qpid/trunk/qpid/cpp/src/tests/Variant.cpp?view=markup#l699
It doesn't explicitly use find but that would be something like (I
haven't tried to compile this!):
Variant v = ...;//egt map from somewhere
Variant::Map::const_iterator i = value.asMap().find("foo");
if (i != value.asMap().end()) {
std::string value = i->second;
}
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Re: Need Help!: Example of the use of Variant Type
Posted by Gordon Sim <gs...@redhat.com>.
On 01/04/16 15:45, Flores, Paul A. wrote:
> Thanks for the example. I was hoping for something a whole lot simpler. It appears to be a royal pain!
>
> Hopefully there is a simplistic example I can implement for my client! Anyone else?
https://svn.apache.org/viewvc/qpid/trunk/qpid/cpp/src/tests/Variant.cpp?view=markup#l699
It doesn't explicitly use find but that would be something like (I
haven't tried to compile this!):
Variant v = ...;//egt map from somewhere
Variant::Map::const_iterator i = value.asMap().find("foo");
if (i != value.asMap().end()) {
std::string value = i->second;
}
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@qpid.apache.org
For additional commands, e-mail: users-help@qpid.apache.org
RE: Need Help!: Example of the use of Variant Type
Posted by "Flores, Paul A." <PA...@SAIC.COM>.
Thanks for the example. I was hoping for something a whole lot simpler. It appears to be a royal pain!
Hopefully there is a simplistic example I can implement for my client! Anyone else?
________________________________________
From: Matt Broadstone [mbroadst@gmail.com]
Sent: Friday, April 01, 2016 9:30 AM
To: users
Subject: Re: Need Help!: Example of the use of Variant Type
On Fri, Apr 1, 2016 at 10:21 AM, Flores, Paul A. <PA...@saic.com>
wrote:
> Specifically I am looking at example for either how to "extract" a map
> from a Variant (map<string,string>) or to use map.find()?
>
>
>
> Could not find example on how to use/access Variant type data.
>
>
>
> Any help is appreciated.
>
>
>
> Paul
>
>
>
Hey Paul,
I've got two example utilities we use for testing in our system posted on
this gist: https://gist.github.com/mbroadst/d7bfefb0589a3296ecca55f36af6b3f9.
They convert between JSON and the variant types using the qpid messaging
c++ libraries, hopefully this should give some insight into how to play
around with the variant types.
Regards,
Matt
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