Re: [Quickfix-developers] Field name to number conversion - more info

[George H. <ge...@so...>]

Alexi,

Thanks for the info. Unfortunately, I am compiling under Fedora x86_64  
and there is no equivalent :(

-George
On Aug 15, 2008, at 12:44 PM, Alexis Michaelides wrote:

> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/html/index.html
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> George,
>
> I'm doing something similar in C# - not sure if it applies to what  
> you're trying to do, but I read in field names from my config and  
> create a Dictionary<string, int> object from that which I can use to  
> map to a field ID. I use Reflection to achieve this. My C# code  
> looks like:
>
> int nameID = (int) 
> (System 
> .Reflection 
> .Assembly.LoadFrom("quickfix_net.dll").GetType("QuickFix." +  
> fieldName).GetField("FIELD").GetValue(0));
>
>
> (where "fieldName" contains the field, e.g. "OrderQty" I'm looking  
> up at the time.
>
> Not sure if this helps, but hopefully it will point you in the right  
> direction!
>
> Alexis
>
>
>
> ----- Original Message ----
> From: George Hrysanthopoulos <ge...@so...>
> To: qui...@li...
> Sent: Friday, August 15, 2008 5:28:20 PM
> Subject: Re: [Quickfix-developers] Field name to number conversion -  
> more info
>
> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/html/index.html
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> Hello again everyone,
>
> Here is some more info on what I am trying to do:
>
> Let's say I have a file called: fixfields.cfg
>
> In the file I have:
>
> OrderQty
> Symbol
> Price
> ClOrdID
> Side
>
> Currently, from: "Application::onMessage" function, I do:
>
>     FIX::Symbol symbol;
>     FIX::Side side;
>     FIX::OrderQty orderQty;
>     FIX::Price price;
>     FIX::ClOrdID clOrdID;
>
>     ...
>     ...
>
>     message.get( symbol );
>     message.get( side );
>     message.get( orderQty );
>     message.get( price );
>     message.get( clOrdID );
>
> I am sure you recognize this as the sample executor application.
>
> What I want to do is:
>
> message.get( "symbol_1_from_file" );
> message.get( "symbol_2_from_file" );
> message.get( "symbol_3_from_file" );
> ...
> ...
>
> You see, what I want to do is "message.get" for the fields I read in  
> from the config file.
> This way the fields are not hard coded in the app.
>
> The question is, is there a way to get the field, as a string, and  
> then find the appropriate enum?
>
> I hope this makes more sense.
>
> Also, and this is a big one, I am a "C" programmer. I am relatively  
> new to "C++". So, please bear with me.
>
> -George
>
> On Aug 14, 2008, at 5:34 PM, George Hrysanthopoulos wrote:
>
>> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/html/index.html
>> QuickFIX Support: http://www.quickfixengine.org/services.html
>>
>> Hello everyone,
>>
>> During runtime I want to read a file, with field names, and when a
>> deal comes in, just print to screen
>> the fields I am interested in (for starters).
>>
>> However, I see that the field names are enum'ed from file:
>> FieldNumbers.h
>>
>> How do I generate a field number from a string? Is there a built-in
>> way of doing this
>> or do I have to (somehow) keep a copy of "FieldNumbers.h" in my
>> executable?
>>
>> Or, worst case, keep the fields I am interested in as numbers in the
>> setup file?
>> This is not at all user friendly and I would like to avoid that.
>>
>> -G
>>
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>
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