cppcms-users

[Cppcms-users] Issues with resubmitting context in v1.2

[CN <cn...@fa...>]

Hi!

Take "Resubmitting Context" in
http://cppcms.com/wikipp/en/page/cppcms_1_2_filtering
as an example. I encounter two issues as shown in the comments in "class
part2".

int main(int argc,char ** argv)
{
cppcms::service sv(argc,argv);
booster::shared_ptr<cppcms::application_specific_pool>
post_processor=cppcms::create_pool<part2>();
sv.applications_pool().mount(post_processor,cppcms::mount_point("/up2/(.+)",1),cppcms::app::synchronous);
booster::weak_ptr<cppcms::application_specific_pool>
p_post_processor(post_processor);
sv.applications_pool().mount(cppcms::create_pool<part1>(p_post_processor),cppcms::mount_point("/up1",1),cppcms::app::asynchronous
| cppcms::app::content_filter);

...
}

class part2 : public cppcms::rpc::json_rpc_server
{
private:
	void part2::main(std::string url)
	{
		//"up2/abc" instead of "abc" is logged:
		BOOSTER_DEBUG("url") << url;
		/*
			return_error() raises exception from
			cppcms::rpc::json_rpc_server::check_call()
			as follows:

			cppcms, error: Caught exception [JSON-RPC
			Request is not assigned to class]

			This error seems to not occur to this version:
			
			class part2 : public cppcms::application{}
		*/
		return_error("");
	}
public:
	part2(cppcms::service &s)
		: cppcms::rpc::json_rpc_server(s){}
};


class part1 : public cppcms::application
{
private:
	booster::weak_ptr<cppcms::application_specific_pool>
	app_specific_pool;
	void main(std::string url);
public:
	part1(cppcms::service
	&s,booster::weak_ptr<cppcms::application_specific_pool>
	app_specific_pool)
		: cppcms::rpc::json_rpc_server(s)
	{
		booster::shared_ptr<cppcms::application_specific_pool>
		pool=app_specific_pool.lock();
		if(pool){
			booster::shared_ptr<cppcms::http::context>
			ctx=release_context();
			ctx->submit_to_pool(pool,"up2/abc");
		}
	}
};


A better formatted file is attached for your reference.
Helps will be much appreciated.

Best Regards,
CN

-- 
http://www.fastmail.com - mmm... Fastmail...

Re: [Cppcms-users] Issues with resubmitting context in v1.2

[Artyom B. <art...@gm...>]

1st of all sorry for delayed reply - was offline for a while.

Regarding your error - you had probably missed the concept of filter.
Filter works BEFORE the data was uploaded processed.
So you can do some stuff on the fly instead of downloading big content
and discoverting an issue.

You need to check if request().is_ready() and only than you can use
it/forward it.

Also JSON-RPC class does not support filer handling it is also not
really needed.

Artyom

On Wed, Jun 8, 2016 at 1:08 PM, CN <cn...@fa...> wrote:
> Hi!
>
> Take "Resubmitting Context" in
> http://cppcms.com/wikipp/en/page/cppcms_1_2_filtering
> as an example. I encounter two issues as shown in the comments in "class
> part2".
>
> int main(int argc,char ** argv)
> {
> cppcms::service sv(argc,argv);
> booster::shared_ptr<cppcms::application_specific_pool>
> post_processor=cppcms::create_pool<part2>();
> sv.applications_pool().mount(post_processor,cppcms::mount_point("/up2/(.+)",1),cppcms::app::synchronous);
> booster::weak_ptr<cppcms::application_specific_pool>
> p_post_processor(post_processor);
> sv.applications_pool().mount(cppcms::create_pool<part1>(p_post_processor),cppcms::mount_point("/up1",1),cppcms::app::asynchronous
> | cppcms::app::content_filter);
>
> ...
> }
>
> class part2 : public cppcms::rpc::json_rpc_server
> {
> private:
>         void part2::main(std::string url)
>         {
>                 //"up2/abc" instead of "abc" is logged:
>                 BOOSTER_DEBUG("url") << url;
>                 /*
>                         return_error() raises exception from
>                         cppcms::rpc::json_rpc_server::check_call()
>                         as follows:
>
>                         cppcms, error: Caught exception [JSON-RPC
>                         Request is not assigned to class]
>
>                         This error seems to not occur to this version:
>
>                         class part2 : public cppcms::application{}
>                 */
>                 return_error("");
>         }
> public:
>         part2(cppcms::service &s)
>                 : cppcms::rpc::json_rpc_server(s){}
> };
>
>
> class part1 : public cppcms::application
> {
> private:
>         booster::weak_ptr<cppcms::application_specific_pool>
>         app_specific_pool;
>         void main(std::string url);
> public:
>         part1(cppcms::service
>         &s,booster::weak_ptr<cppcms::application_specific_pool>
>         app_specific_pool)
>                 : cppcms::rpc::json_rpc_server(s)
>         {
>                 booster::shared_ptr<cppcms::application_specific_pool>
>                 pool=app_specific_pool.lock();
>                 if(pool){
>                         booster::shared_ptr<cppcms::http::context>
>                         ctx=release_context();
>                         ctx->submit_to_pool(pool,"up2/abc");
>                 }
>         }
> };
>
>
> A better formatted file is attached for your reference.
> Helps will be much appreciated.
>
> Best Regards,
> CN
>
> --
> http://www.fastmail.com - mmm... Fastmail...
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
>

Re: [Cppcms-users] Issues with resubmitting context in v1.2

[CN <cn...@fa...>]

On Sun, Jun 19, 2016, at 01:57 PM, Artyom Beilis wrote:
> 1st of all sorry for delayed reply - was offline for a while.

I am very happy to know that you are back online, and much appreciate
your kind helps!

> 
> Regarding your error - you had probably missed the concept of filter.
> Filter works BEFORE the data was uploaded processed.
> So you can do some stuff on the fly instead of downloading big content
> and discoverting an issue.
> 
> You need to check if request().is_ready() and only than you can use
> it/forward it.

I understood its usage (finally). It was just because I somehow posted
the wrong redacted sample program again (due to long-hour working?)!

> Also JSON-RPC class does not support filer handling it is also not
> really needed.

Many thanks for the explanation!

I am attaching new sample program. Hopefully it is the correct version I
intend to use to illustrate my remaining question:

Why
part2::main(std::string url)
gets string "up2/abc" instead of "abc"?

It appears that regex group catching mechanism
cppcms::mount_point("/up2/(.+)",1)
is not invoked.

Best Regards,
CN

----------

int main(int argc,char ** argv)
{
	cppcms::service sv(argc,argv);
	booster::shared_ptr<cppcms::application_specific_pool>
	p2=cppcms::create_pool<part2>();
	sv.applications_pool().mount(p2,cppcms::mount_point("/up2/(.+)",1),cppcms::app::synchronous);
	booster::weak_ptr<cppcms::application_specific_pool> p_p2(p2);
	sv.applications_pool().mount(cppcms::create_pool<part1>(p_p2),cppcms::mount_point("/up1",1),cppcms::app::asynchronous
	| cppcms::app::content_filter);

...
}

class part2 : public cppcms::application
{
private:
	void part2::main(std::string url)
	{
		//QESTION: Why "up2/abc" instead of "abc" is logged?
		BOOSTER_DEBUG("url") << url;
	}
public:
	part2(cppcms::service &s)
		: cppcms::application(s){}
};


class part1 : public cppcms::application
{
private:
	booster::weak_ptr<cppcms::application_specific_pool>
	app_specific_pool;
	void main(std::string url)
	{
		if(!request().is_ready()){
			//Do some pre-verification.
		}
		else{
			booster::shared_ptr<cppcms::application_specific_pool>
			pool=app_specific_pool.lock();
			if(pool){
				booster::shared_ptr<cppcms::http::context>
				ctx=release_context();
				ctx->submit_to_pool(pool,"up2/abc");
			}
		}
	}
public:
	part1(cppcms::service
	&s,booster::weak_ptr<cppcms::application_specific_pool>
	app_specific_pool)
		: cppcms::application(s){}
};

-- 
http://www.fastmail.com - A no graphics, no pop-ups email service

Re: [Cppcms-users] Issues with resubmitting context in v1.2

[Artyom B. <art...@gm...>]

Because when you call submit_to_pool you provide already parsed path -
you don't submit it to general selection as you already know what pool
you submit too.
So you give the value that should be given to application::main

so you need to call ctx->submit_to_pool(poo,"abc");

>
> I am attaching new sample program. Hopefully it is the correct version I
> intend to use to illustrate my remaining question:
>
> Why
> part2::main(std::string url)
> gets string "up2/abc" instead of "abc"?
>
> It appears that regex group catching mechanism
> cppcms::mount_point("/up2/(.+)",1)
> is not invoked.
>
> Best Regards,
> CN
>
>                 if(!request().is_ready()){
>                         //Do some pre-verification.
>                 }
>                 else{
>                         booster::shared_ptr<cppcms::application_specific_pool>
>                         pool=app_specific_pool.lock();
>                         if(pool){
>                                 booster::shared_ptr<cppcms::http::context>
>                                 ctx=release_context();
>                                 ctx->submit_to_pool(pool,"up2/abc");
>                         }
>                 }