Hi David, Thanks for the reply, but I’m speaking about 2 web-apps (i.e. 2 war files) that are deployed by a single tomcat instance. That means I don’t have access to the main and as it is a single JVM I cannot use the system property, because both web-apps will now have the same value for app.name.
Cheers, — Brice On Fri, Jun 10, 2016 at 12:36 PM, David Roussel <[email protected]> wrote: Hi, > > There are two ways to deal with this. > > 1) Put your log initialisation at the top of your main() method, so > nothing else can run first. > > 2) Specify the app name as a system property on the command line: > > java -Dapp.name=MyApp -jar myappjar > > Thanks > > David > > On 10 Jun 2016, at 10:20, Brice Dutheil <[email protected]> wrote: > > Hi, > > I would like share a single log configuration for two web-apps that run on > the same container. Yet I want each web-app to log in separate files. > > I tried different approach the best one is actually very close to some > solution I later found on the FAQ : > http://logback.qos.ch/faq.html#sharedConfiguration > > LoggerContext loggerContext = (LoggerContext) > LoggerFactory.getILoggerFactory(); > JoranConfigurator jc = new JoranConfigurator(); > jc.setContext(loggerContext); > loggerContext.reset(); > loggerContext.setName(appName); // use ${CONTEXT_NAME} in logback.xml > jc.doConfigure(Objects.requireNonNull(source, "Logback configuration is > missing")); > > However for operation reasons we pass the configuration via the system > property logback.configurationFile, so what happens is that the first > call to LoggerFactory.getILoggerFactory() initialise the LoggerContext > and creates files with non initialised variables. > > As I’m using the context name, the file names have default in their name > (this is the default value of the context name), if using variable I get a > filename with my-var-name_IS_UNDEFINED. > > *The question is :* Is there proper way anyway to avoid this > pre-initialisation to avoid creating this empty file ? > > I didn’t found any way to hook in the org.slf4j.LoggerFactory or > org.slf4j.impl.StaticLoggerBinder (of logback-classic). > > — Brice > > _______________________________________________ > logback-user mailing list > [email protected] > http://mailman.qos.ch/mailman/listinfo/logback-user > > > > _______________________________________________ > logback-user mailing list > [email protected] > http://mailman.qos.ch/mailman/listinfo/logback-user >
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