Re: [Boost-users] [Boost.Log] More queries
From: Leo Carreon Sent: Saturday, July 13, 2013 3:51 PM To: Boost Users Mailing List Subject: [Boost.Log] More queries Hi everyone, As I have mentioned in a previous post, I have been trying to learn how to use Boost.Log. I have been experimenting with logging to a file with filtering and specifying the log formatting in three different ways, namely: 1. Specifying the log formatting using a lambda type expression. 2. Specifying the log formatting using a plain text string with placeholders for the attributes that I have defined. 3. Specifying the log formatting in a settings file. (However, the formatting string is exactly the same as in 2 above.) I have attached a copy of my source code and settings file. Note that I comment out parts of the source code file depending on which option I use above. The problem I’m encountering is when I use options 2 & 3 above, the severity level string does not appear in the log. But if I use option 1, the severity level string appears as expected. It is my understanding that severity level is a pre-defined attribute when using a severity_logger. Am I missing something when using options 2 & 3? If I decide to use my own severity level enumeration, what do I need to do? Kind regards, Leo Hi again everyone, I have managed to use my own severity level enumeration but the severity level string is still not appearing in the log. Regards again, Leo
_____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 14 July 2013 04:04 To: Boost Users Mailing List Subject: Re: [Boost-users] [Boost.Log] More queries From: Leo Carreonmailto:lcarreon@bigpond.net.au Sent: Saturday, July 13, 2013 3:51 PM To: Boost Users Mailing Listmailto:boost-users@lists.boost.org Subject: [Boost.Log] More queries Hi everyone, As I have mentioned in a previous post, I have been trying to learn how to use Boost.Log. I have been experimenting with logging to a file with filtering and specifying the log formatting in three different ways, namely: 1. Specifying the log formatting using a lambda type expression. 2. Specifying the log formatting using a plain text string with placeholders for the attributes that I have defined. 3. Specifying the log formatting in a settings file. (However, the formatting string is exactly the same as in 2 above.) I have attached a copy of my source code and settings file. Note that I comment out parts of the source code file depending on which option I use above. The problem I’m encountering is when I use options 2 & 3 above, the severity level string does not appear in the log. But if I use option 1, the severity level string appears as expected. It is my understanding that severity level is a pre-defined attribute when using a severity_logger. Am I missing something when using options 2 & 3? If I decide to use my own severity level enumeration, what do I need to do? Kind regards, Leo Hi again everyone, I have managed to use my own severity level enumeration but the severity level string is still not appearing in the log. Regards again, Leo Hi Leo, Again I'm basing this on how it used to work in Logutils 1.1, so apologies if this is out of date. Try defining a function like the following: std::ostream& operator<< (std::ostream& Stream, MySeverityLevelEnum Level) { switch(Level) { case notice: Stream << "notice"; break; case debug: Stream << "debug"; break; } return Stream; } So long as this function is visible to Boost.Log it will use it.
From: Colin Powers Sent: Monday, July 15, 2013 6:06 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries _____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 14 July 2013 04:04 To: Boost Users Mailing List Subject: Re: [Boost-users] [Boost.Log] More queries From: Leo Carreon Sent: Saturday, July 13, 2013 3:51 PM To: Boost Users Mailing List Subject: [Boost.Log] More queries Hi everyone, As I have mentioned in a previous post, I have been trying to learn how to use Boost.Log. I have been experimenting with logging to a file with filtering and specifying the log formatting in three different ways, namely: 1. Specifying the log formatting using a lambda type expression. 2. Specifying the log formatting using a plain text string with placeholders for the attributes that I have defined. 3. Specifying the log formatting in a settings file. (However, the formatting string is exactly the same as in 2 above.) I have attached a copy of my source code and settings file. Note that I comment out parts of the source code file depending on which option I use above. The problem I’m encountering is when I use options 2 & 3 above, the severity level string does not appear in the log. But if I use option 1, the severity level string appears as expected. It is my understanding that severity level is a pre-defined attribute when using a severity_logger. Am I missing something when using options 2 & 3? If I decide to use my own severity level enumeration, what do I need to do? Kind regards, Leo Hi again everyone, I have managed to use my own severity level enumeration but the severity level string is still not appearing in the log. Regards again, Leo Hi Leo, Again I'm basing this on how it used to work in Logutils 1.1, so apologies if this is out of date. Try defining a function like the following: std::ostream& operator<< (std::ostream& Stream, MySeverityLevelEnum Level) { switch(Level) { case notice: Stream << "notice"; break; case debug: Stream << "debug"; break; } return Stream; } So long as this function is visible to Boost.Log it will use it. Hi Colin, First of all, thank you for your reply. However, I already have a similar function. Actually, I’m following the example shown in the documentation under “Detailed Features Description – Lambda Expressions” but it does seem to have the right effect. Regards, Leo -------------------------------------------------------------------------------- _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
_____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 15 July 2013 10:03 To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries From: Colin Powersmailto:Colin.Powers@nexor.com Sent: Monday, July 15, 2013 6:06 PM To: boost-users@lists.boost.orgmailto:boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries _____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 14 July 2013 04:04 To: Boost Users Mailing List Subject: Re: [Boost-users] [Boost.Log] More queries From: Leo Carreonmailto:lcarreon@bigpond.net.au Sent: Saturday, July 13, 2013 3:51 PM To: Boost Users Mailing Listmailto:boost-users@lists.boost.org Subject: [Boost.Log] More queries Hi everyone, As I have mentioned in a previous post, I have been trying to learn how to use Boost.Log. I have been experimenting with logging to a file with filtering and specifying the log formatting in three different ways, namely: 1. Specifying the log formatting using a lambda type expression. 2. Specifying the log formatting using a plain text string with placeholders for the attributes that I have defined. 3. Specifying the log formatting in a settings file. (However, the formatting string is exactly the same as in 2 above.) I have attached a copy of my source code and settings file. Note that I comment out parts of the source code file depending on which option I use above. The problem I’m encountering is when I use options 2 & 3 above, the severity level string does not appear in the log. But if I use option 1, the severity level string appears as expected. It is my understanding that severity level is a pre-defined attribute when using a severity_logger. Am I missing something when using options 2 & 3? If I decide to use my own severity level enumeration, what do I need to do? Kind regards, Leo Hi again everyone, I have managed to use my own severity level enumeration but the severity level string is still not appearing in the log. Regards again, Leo Hi Leo, Again I'm basing this on how it used to work in Logutils 1.1, so apologies if this is out of date. Try defining a function like the following: std::ostream& operator<< (std::ostream& Stream, MySeverityLevelEnum Level) { switch(Level) { case notice: Stream << "notice"; break; case debug: Stream << "debug"; break; } return Stream; } So long as this function is visible to Boost.Log it will use it. Hi Colin, First of all, thank you for your reply. However, I already have a similar function. Actually, I’m following the example shown in the documentation under “Detailed Features Description – Lambda Expressions” but it does seem to have the right effect. Regards, Leo Okay - apologies, I didn't actually look at your test code. You may be going more advanced that I did when I played with it. Looking at my old code the only other things I appear to be doing to set up Severity Level is the following function calls: boost::log::add_common_attributes(); //not sure if this one is necessary for you boost::log::register_simple_formatter_factory<MySeverityLevelEnum>("Severity"); //might help They might be worth a try - if not, I'm afraid you're into an area I haven't yet played with :) Cheers Colin ________________________________ _______________________________________________ Boost-users mailing list Boost-users@lists.boost.orgmailto:Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
From: Colin Powers Sent: Monday, July 15, 2013 7:27 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries _____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 15 July 2013 10:03 To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries From: Colin Powers Sent: Monday, July 15, 2013 6:06 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Boost.Log] More queries _____________________________________________ From: Leo Carreon [mailto:lcarreon@bigpond.net.au] Sent: 14 July 2013 04:04 To: Boost Users Mailing List Subject: Re: [Boost-users] [Boost.Log] More queries From: Leo Carreon Sent: Saturday, July 13, 2013 3:51 PM To: Boost Users Mailing List Subject: [Boost.Log] More queries Hi everyone, As I have mentioned in a previous post, I have been trying to learn how to use Boost.Log. I have been experimenting with logging to a file with filtering and specifying the log formatting in three different ways, namely: 1. Specifying the log formatting using a lambda type expression. 2. Specifying the log formatting using a plain text string with placeholders for the attributes that I have defined. 3. Specifying the log formatting in a settings file. (However, the formatting string is exactly the same as in 2 above.) I have attached a copy of my source code and settings file. Note that I comment out parts of the source code file depending on which option I use above. The problem I’m encountering is when I use options 2 & 3 above, the severity level string does not appear in the log. But if I use option 1, the severity level string appears as expected. It is my understanding that severity level is a pre-defined attribute when using a severity_logger. Am I missing something when using options 2 & 3? If I decide to use my own severity level enumeration, what do I need to do? Kind regards, Leo Hi again everyone, I have managed to use my own severity level enumeration but the severity level string is still not appearing in the log. Regards again, Leo Hi Leo, Again I'm basing this on how it used to work in Logutils 1.1, so apologies if this is out of date. Try defining a function like the following: std::ostream& operator<< (std::ostream& Stream, MySeverityLevelEnum Level) { switch(Level) { case notice: Stream << "notice"; break; case debug: Stream << "debug"; break; } return Stream; } So long as this function is visible to Boost.Log it will use it. Hi Colin, First of all, thank you for your reply. However, I already have a similar function. Actually, I’m following the example shown in the documentation under “Detailed Features Description – Lambda Expressions” but it does seem to have the right effect. Regards, Leo Okay - apologies, I didn't actually look at your test code. You may be going more advanced that I did when I played with it. Looking at my old code the only other things I appear to be doing to set up Severity Level is the following function calls: boost::log::add_common_attributes(); //not sure if this one is necessary for you boost::log::register_simple_formatter_factory<MySeverityLevelEnum>("Severity"); //might help They might be worth a try - if not, I'm afraid you're into an area I haven't yet played with :) Cheers Colin Hi Colin, Thanks for attempting to give me a hand on this issue. I tried calling boost::log::register_simple_formatter_factory<>() and it still doesn’t have any effect. I believe I really need Andrey’s assistance on this one. Regards, Leo ________________________________ _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -------------------------------------------------------------------------------- _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
participants (2)
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Colin Powers -
Leo Carreon