Solved: Use a variable for fileName in log4j - Qlik Community

DBOUAKKAZ · ‎2021-07-28

Hello everyone,

I want to keep the log4j output in a file for each job. Is it possible to use a variable with the pattern "jobname_date_hour" for example ?

I tried to put in a TpreJob ====> tjava :

System.setProperty("logFilename", filename);

Where file name is a variable with the full path to the log file.

And added this in Project Settings ===> log4j :

</File>

But i get this error :

ERROR FileManager (${sys:logFilename}) java.io.IOException: The filename, directory name, or volume label syntax is incorrect java.io.IOException: The filename, directory name, or volume label syntax is incorrect.

Is there a different way to assign the variable ?

gjeremy1617088143 · ‎2021-07-28

Hi @Djallel BOUAKKAZ ,

My log4j xml :

<?xml version="1.0" encoding="UTF-8"?>

</Console>

</PatternLayout>

</File>

</Appenders>

</Root>

</Loggers>

</Configuration>

at the begining of the job in a tjava :

Advanced settings tab :

import org.apache.logging.log4j.core.LoggerContext;

import org.apache.logging.log4j.LogManager;

in the basic settings :

String taljob = System.getProperty("TalendJob.log");

System.setProperty("TalendJob.log","C:\\coucou2.log");

org.apache.logging.log4j.core.LoggerContext ctx =(org.apache.logging.log4j.core.LoggerContext) LogManager.getContext(false);

ctx.reconfigure();

System.setProperty("TalendJob.log",taljob);

Send me love and kudos

View solution in original post

gjeremy1617088143 · ‎2021-07-28

Hi @Djallel BOUAKKAZ ,

My log4j xml :

<?xml version="1.0" encoding="UTF-8"?>

</Console>

</PatternLayout>

</File>

</Appenders>

</Root>

</Loggers>

</Configuration>

at the begining of the job in a tjava :

Advanced settings tab :

import org.apache.logging.log4j.core.LoggerContext;

import org.apache.logging.log4j.LogManager;

in the basic settings :

String taljob = System.getProperty("TalendJob.log");

System.setProperty("TalendJob.log","C:\\coucou2.log");

org.apache.logging.log4j.core.LoggerContext ctx =(org.apache.logging.log4j.core.LoggerContext) LogManager.getContext(false);

ctx.reconfigure();

System.setProperty("TalendJob.log",taljob);

Send me love and kudos

gjeremy1617088143 · ‎2021-07-28

at the end of the job you can delete the file in your workspace\ your job name \poms\jobs\process\your jobname + version\src\main\ext-resources

created at the begining of the job with sys:TalendJob.

you can get the full path with :

System.getProperty("TalendJob.log")

TFileDelete:

File Name : System.getProperty("TalendJob.log")

an other solution is to just make tfilecopy of the System.getProperty("TalendJob.log") file

DBOUAKKAZ · ‎2021-07-28

Thank you so much for your answer I'm able to generate the file with the pattern I was looking for but I'm still getting this error :

2021-07-28 16:57:32,658 main ERROR FileManager (${sys:filename}) java.io.IOException: The filename, directory name, or volume label syntax is incorrect java.io.IOException: The filename, directory name, or volume label syntax is incorrect

at java.io.WinNTFileSystem.canonicalize0(Native Method)

at java.io.WinNTFileSystem.canonicalize(Unknown Source)

at java.io.File.getCanonicalPath(Unknown Source)

at java.io.File.getCanonicalFile(Unknown Source)

at org.apache.logging.log4j.core.util.FileUtils.makeParentDirs(FileUtils.java:142)

at org.apache.logging.log4j.core.appender.FileManager$FileManagerFactory.createManager(FileManager.java:429)

at org.apache.logging.log4j.core.appender.FileManager$FileManagerFactory.createManager(FileManager.java:417)

at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:113)

at org.apache.logging.log4j.core.appender.OutputStreamManager.getManager(OutputStreamManager.java:114)

at org.apache.logging.log4j.core.appender.FileManager.getFileManager(FileManager.java:182)

at org.apache.logging.log4j.core.appender.FileAppender$Builder.build(FileAppender.java:96)

at org.apache.logging.log4j.core.appender.FileAppender$Builder.build(FileAppender.java:52)

at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)

at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1002)

at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:942)

at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:934)

at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:552)

at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:241)

at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:288)

at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:579)

at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:651)

at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:668)

at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)

at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:153)

at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)

at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)

at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:581)

at rmmdb_on_premise.testcopyfile_0_1.TestCopyFile.<clinit>(TestCopyFile.java:58)

2021-07-28 16:57:32,665 main ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.FileAppender for element File: java.lang.IllegalStateException: ManagerFactory [org.apache.logging.log4j.core.appender.FileManager$FileManagerFactory@458c1321] unable to create manager for [${sys:filename}] with data [org.apache.logging.log4j.core.appender.FileManager$FactoryData@11438d26] java.lang.IllegalStateException: ManagerFactory [org.apache.logging.log4j.core.appender.FileManager$FileManagerFactory@458c1321] unable to create manager for [${sys:filename}] with data [org.apache.logging.log4j.core.appender.FileManager$FactoryData@11438d26]

at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:115)