Log4j with multiple files converting to xml
Greetings I tried searching for this on the mail archives link, the link seems to be changed. My goal: I have 4 files for logging. ConLogger - logs to console, lgLogger - logs to a log file, qryLogger that logs to a log file, delLogger that logs to a log file, and exLogger that logs to a log file lgLogger logs generall aplication activity. I have used addAppender to ensure everything logged to the console is also logged to lgLogger qryLogger logs nothing but query information exLogger logs all exception errors All 4 of these files can support debug thru fatal entries. I have used this same pattern in several batch type jobs for about 4 years now. These files are configured in the primary java class. What I want to do is change the configuration from hard coding these log files in the app to using xml files for configuration. The problem I am running into is it seems when using xml or property files log4j makes the assumption of only one logger with multiple appenders per xml file. I want or think I want 4 distinct loggers with each having a separate appender. Is this correct? Has anyone else tried to do something similar with log4j? Any idea on how to achieve this? Thanks! --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin
Re: Log4j with multiple files converting to xml
I suggest that you take a crack at the configuration yourself. If you still have questions, post it and we can help you tweak it. Jake On Wed, 8 Dec 2010 08:16:44 -0800 (PST) Refr Bruhl refr_br...@yahoo.com wrote: Greetings I tried searching for this on the mail archives link, the link seems to be changed. My goal: I have 4 files for logging. ConLogger - logs to console, lgLogger - logs to a log file, qryLogger that logs to a log file, delLogger that logs to a log file, and exLogger that logs to a log file lgLogger logs generall aplication activity. I have used addAppender to ensure everything logged to the console is also logged to lgLogger qryLogger logs nothing but query information exLogger logs all exception errors All 4 of these files can support debug thru fatal entries. I have used this same pattern in several batch type jobs for about 4 years now. These files are configured in the primary java class. What I want to do is change the configuration from hard coding these log files in the app to using xml files for configuration. The problem I am running into is it seems when using xml or property files log4j makes the assumption of only one logger with multiple appenders per xml file. I want or think I want 4 distinct loggers with each having a separate appender. Is this correct? Has anyone else tried to do something similar with log4j? Any idea on how to achieve this? Thanks! --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
Re: Log4j with multiple files converting to xml
Well been doing that already. Lets start with the basics What is the syntax for configuring multiple loggers using an xml file? If I use log4j.xml or log4j.properties I can configure one logger with code straight from a tutorial... org.apache.log4j.Logger conLogger = Logger.getLogger(BaseConfig.class); Using this as a model I would think I would want org.apache.log4j.Logger qryLogger = Logger.getLogger(BaseConfig.class); org.apache.log4j.Logger lgLogger = Logger.getLogger(BaseConfig.class); org.apache.log4j.Logger exLogger = Logger.getLogger(BaseConfig.class); Yet if I use this construct, even if I set loggers in the xml file, the last defined file will write console output to its log. So it seems to me that instead of basing a logger on a class, I need to base a logger on a unique xml file. I can use URL url = Loader.getResource(conLogger.xml); DOMConfigurator.configure(url); again from the same tutorial.. but it only works with 1 xml file. So if I am limited to 1 xml file how do I configure separate loggers and appenders in 1 xml file or is there a way I can have 4 separate xml files with a unique logger and appender for each? --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin From: Jacob Kjome h...@visi.com To: Log4J Users List log4j-user@logging.apache.org Sent: Wed, December 8, 2010 11:12:08 AM Subject: Re: Log4j with multiple files converting to xml I suggest that you take a crack at the configuration yourself. If you still have questions, post it and we can help you tweak it. Jake On Wed, 8 Dec 2010 08:16:44 -0800 (PST) Refr Bruhl refr_br...@yahoo.com wrote: Greetings I tried searching for this on the mail archives link, the link seems to be changed. My goal: I have 4 files for logging. ConLogger - logs to console, lgLogger - logs to a log file, qryLogger that logs to a log file, delLogger that logs to a log file, and exLogger that logs to a log file lgLogger logs generall aplication activity. I have used addAppender to ensure everything logged to the console is also logged to lgLogger qryLogger logs nothing but query information exLogger logs all exception errors All 4 of these files can support debug thru fatal entries. I have used this same pattern in several batch type jobs for about 4 years now. These files are configured in the primary java class. What I want to do is change the configuration from hard coding these log files in the app to using xml files for configuration. The problem I am running into is it seems when using xml or property files log4j makes the assumption of only one logger with multiple appenders per xml file. I want or think I want 4 distinct loggers with each having a separate appender. Is this correct? Has anyone else tried to do something similar with log4j? Any idea on how to achieve this? Thanks! --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
Re: Log4j with multiple files converting to xml
You can configure your entire logging system via a single config file. You are not limited to one logger/appender per config file. Besides, children of the the logger inherit from the parent, by default, so when you configure a given logger, e.g., the root logger, that same config applies to all children (unless you set additivity to false at some point in the hierarchy). I assure you, there is no need for multiple config files. The manual [1] shows examples of properties config files. The wiki [2] provides examples of XML config files. And any search engine will provide lots of extra resources showing how to write Log4j config files. Please read these resources and take a crack at the config. Feel free to post your config if you have more questions. [1] http://logging.apache.org/log4j/1.2/manual.html [2] http://wiki.apache.org/logging-log4j/Log4jXmlFormat Jake On Wed, 8 Dec 2010 09:35:28 -0800 (PST) Refr Bruhl refr_br...@yahoo.com wrote: Well been doing that already. Lets start with the basics What is the syntax for configuring multiple loggers using an xml file? If I use log4j.xml or log4j.properties I can configure one logger with code straight from a tutorial... org.apache.log4j.Logger conLogger = Logger.getLogger(BaseConfig.class); Using this as a model I would think I would want org.apache.log4j.Logger qryLogger = Logger.getLogger(BaseConfig.class); org.apache.log4j.Logger lgLogger = Logger.getLogger(BaseConfig.class); org.apache.log4j.Logger exLogger = Logger.getLogger(BaseConfig.class); Yet if I use this construct, even if I set loggers in the xml file, the last defined file will write console output to its log. So it seems to me that instead of basing a logger on a class, I need to base a logger on a unique xml file. I can use URL url = Loader.getResource(conLogger.xml); DOMConfigurator.configure(url); again from the same tutorial.. but it only works with 1 xml file. So if I am limited to 1 xml file how do I configure separate loggers and appenders in 1 xml file or is there a way I can have 4 separate xml files with a unique logger and appender for each? --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin From: Jacob Kjome h...@visi.com To: Log4J Users List log4j-user@logging.apache.org Sent: Wed, December 8, 2010 11:12:08 AM Subject: Re: Log4j with multiple files converting to xml I suggest that you take a crack at the configuration yourself. If you still have questions, post it and we can help you tweak it. Jake On Wed, 8 Dec 2010 08:16:44 -0800 (PST) Refr Bruhl refr_br...@yahoo.com wrote: Greetings I tried searching for this on the mail archives link, the link seems to be changed. My goal: I have 4 files for logging. ConLogger - logs to console, lgLogger - logs to a log file, qryLogger that logs to a log file, delLogger that logs to a log file, and exLogger that logs to a log file lgLogger logs generall aplication activity. I have used addAppender to ensure everything logged to the console is also logged to lgLogger qryLogger logs nothing but query information exLogger logs all exception errors All 4 of these files can support debug thru fatal entries. I have used this same pattern in several batch type jobs for about 4 years now. These files are configured in the primary java class. What I want to do is change the configuration from hard coding these log files in the app to using xml files for configuration. The problem I am running into is it seems when using xml or property files log4j makes the assumption of only one logger with multiple appenders per xml file. I want or think I want 4 distinct loggers with each having a separate appender. Is this correct? Has anyone else tried to do something similar with log4j? Any idea on how to achieve this? Thanks! --Refr inn gra Wars are to be won with swords and spears, not with rice and salt. -- Uesugi Kenshin - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
