AFAIK you can only use Java System properties. To set them pass them on the Java command with "-D"
On 7/7/05, Sriram Venkatasubramanian <[EMAIL PROTECTED]> wrote: > Hi All, > I am also facing similar problem ! Log4j is unable read the env > variables. My problem is I cant hard code the path of the log file as > C:\XXX\xxLog.log. I have to read the relative path for this purpose . > Any idea ? > > I am using OC4J & log4J 1.2.11 & My log4j.xml is as below. > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> > <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"; > debug="false"> > <appender name="DAO_FRAMEWORK" > class="org.apache.log4j.DailyRollingFileAppender"> > <param name="File" > value="$(JAVA_HOME)/DAOFramework.log"/> > <param name="Append" value="true"/> > <layout class="org.apache.log4j.PatternLayout"> > <param name="ConversionPattern" value="%d %-5p > [%c{1}] %m%n"/> > </layout> > </appender> > <appender name="CONSOLE" > class="org.apache.log4j.ConsoleAppender"> > <param name="Threshold" value="INFO"/> > <param name="Target" value="System.out"/> > <layout class="org.apache.log4j.PatternLayout"> > <!-- The default pattern: Date Priority > [Category] Message\n --> > <param name="ConversionPattern" > value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/> > </layout> > </appender> > > <!-- DAO Framework --> > <logger name="DAO" additivity="false"> > <level value="INFO"/> > <appender-ref ref="CONSOLE"/> > <appender-ref ref="DAO_FRAMEWORK"/> > </logger> > > <!-- Root Logger --> > <root> > <level value="DEBUG"/> > <appender-ref ref="CONSOLE"/> > <appender-ref ref="DAO_FRAMEWORK"/> > </root> > > </log4j:configuration> > > And I am getting errors like : > > Oracle Application Server Containers for J2EE 10g (9.0.4.0.0) > initialized > log4j:ERROR setFile(null,true) call failed. > java.io.FileNotFoundException: $(JAVA_HOME)/DAOFramework.log (The system > cannot find the path specified) > at java.io.FileOutputStream.openAppend(Native Method) > at java.io.FileOutputStream.<init>(Unknown Source) > at org.apache.log4j.FileAppender.setFile(FileAppender.java:282) > at > org.apache.log4j.FileAppender.activateOptions(FileAppender.java:161) > at > org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFi > leAppender.java:215) > at > org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256) > at > org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java: > 219) > at > org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator. > java:149) > > > > I am calling Logger like this in Java Code : > Logger logger =Logger.getLogger("DAO"); > logger.info("I am inside logger"+this); > > Regards, > Sriram V > > > -----Original Message----- > From: Vinodh Srinivasasainagendra [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 06, 2005 9:59 PM > To: 'Log4J Users List' > Subject: RE: Clarification > > Did u try ${some_property_key} (for example, java.home or user.home > system > properties) to specify the path in front of the File. > > Ex: > > log4j.appender.dest2.File=${java.home}/log4j.log > > ~vinodh > > -----Original Message----- > From: Balaji Saranathan [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 06, 2005 11:06 AM > To: 'Log4J Users List' > Subject: RE: Clarification > > > But isnt this configuring through the code? I want to configure the > FileAppender from the log4j.properties file. > > > -----Original Message----- > From: Vinodh Srinivasasainagendra [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 06, 2005 12:01 PM > To: 'Log4J Users List' > Subject: RE: Clarification > > > See the attached code, > > > > // Set FileAppender > > SimpleLayout layout = new SimpleLayout(); > > String fileName = new > File(backupDir.getParent(),"error.log").getAbsolutePath(); > > FileAppender appender = new FileAppender(layout, > fileName,true); > > > > logger.addAppender(appender); > > logger.setLevel((Level) Level.FATAL); > > Date date = new Date(System.currentTimeMillis()); > > > > logger.fatal(date.toString()); > > logger.fatal(message); > > > logger.fatal("***************************************************"); > > > > Note: > > Make sure you give the parent dir to the log file properly. > > > > ~vinodh > > -----Original Message----- > From: Balaji Saranathan [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 06, 2005 10:47 AM > To: 'Log4J Users List' > Subject: RE: Clarification > > > > > > Tx. I tried it. It doesn't work I still get the same error. In the error > > below, there is a call to setFile with "null" filename. Shdnt it be > > called with the filename mentioned in the properties file? > > > > > > > > -----Original Message----- > > From: Schuweiler, Joel J. [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, July 06, 2005 11:38 AM > > To: 'Log4J Users List' > > Subject: RE: Clarification > > > > > > If can't find the path, have you tried removed the leading ./? > > > > For a path I would do > > > > logs/framework.log assuming that it is contained in the same directory > > that your class is running from. > > > > -----Original Message----- > > From: Balaji Saranathan [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, July 06, 2005 10:33 AM > > To: 'Log4J Users List' > > Subject: Clarification > > > > > > > > Hi, > > > > Can you tell me if log4j creates the log file (if they are not present) > > when using the FileAppenders or is it the responsibility of the > > developers to create the log files? I have a FileAppender configured and > > when I configure the > > log4j.appender.framework.File=framework.log=./logs/framework.log > > I get a the following error on stdout.log > > > > log4j:ERROR setFile(null,true) call failed. > > java.io.FileNotFoundException: .\logs\framework.log (The system cannot > > find the path specified) > > at java.io.FileOutputStream.openAppend(Native Method) > > at java.io.FileOutputStream.<init>(FileOutputStream.java:177) > > at java.io.FileOutputStream.<init>(FileOutputStream.java:102) > > at org.apache.log4j.FileAppender.setFile(FileAppender.java:282) > > at > > org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:16 > > 5) > > at > > org.apache.log4j.FileAppender.activateOptions(FileAppender.java:161) > > at > > org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256) > > at > > org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java > > :132) > > at > > org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java > > :96) > > at > > org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator > > .java:654) > > at > > org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator > > .java:612) > > at > > org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConf > > igurator.java:509) > > at > > org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.j > > ava:415) > > at > > org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.j > > ava:441) > > at > > org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConver > > ter.java:468) > > > > > > > > > > > > > > > > Confidentiality Notice > > > > The information contained in this electronic message and any attachments > > to this message are intended for the exclusive use of the addressee(s) > > and may contain confidential or privileged information. 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