Tomee - slf4j create logs file but not writing on them - maven

Question

I want to use log4j for my app (I don't need to handle the server logs for now). I searched for a solution but all post are related with server logs. When I run the app, the log4j.properties is read and the logs file are created but it didn't write on them.
I'm using Tomee as server. I have other project with Wildfly using the same solution for log4j and it works.
log4j.properties:
log4j.appender.TEST = org.apache.log4j.DailyRollingFileAppender
log4j.appender.TEST.File = /opt/share/test-project/logs/test.log
log4j.appender.TEST.DatePattern = '.'yyyy-MM-dd
log4j.appender.TEST.layout = org.apache.log4j.PatternLayout
log4j.appender.TEST.layout.ConversionPattern = [%d{ISO8601}] %5p - %x - %c.%M(%L): %m%n
# Define the types of logger and level of logging
#log4j.rootLogger.org = DEBUG,CONSOLE
log4j.logger.com.test=DEBUG, TEST
Log4jConfig class which is initialized:
import java.io.File;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.log4j.PropertyConfigurator;
#WebListener
public class Log4jConfig implements ServletContextListener {
private final static String LO4G_FILENAME="/opt/share/test-project/config/log4j.properties";
private static final Logger LOGGER = LoggerFactory.getLogger(Log4jConfig.class);
...
...
public void contextInitialized(ServletContextEvent arg0)
{
try{
File file = new File(LO4G_FILENAME);
if (file.exists())
{
PropertyConfigurator.configure(LO4G_FILENAME);
LOGGER.info("[Log4JInitServlet - contextInitialized] - Log4J configured:"+LO4G_FILENAME);
}
}catch (Exception e) {
LOGGER.error("[Log4JInitServlet - contextInitialized] - Exception >>",e);
}
}
}
Test.java:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.Gson;
#Path("/test")
public class TestWs {
private static final Logger LOGGER = LoggerFactory.getLogger(TestWs.class.getName());
//here LOGGER is null. If I put it into test() is not null but not write on the log either.
#GET
#Path("/")
#Produces(MediaType.APPLICATION_JSON)
public Response test(){
LOGGER.debug("[TestWs - init] - init");
long currentSystemTime = System.currentTimeMillis();
LOGGER.error("[TestWs - test] - Error: TEST");
LOGGER.debug("[TestWs - test] - Finish Timing:"+(System.currentTimeMillis()-currentSystemTime));
return Response.ok().build();
}
}
POM.xml:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.12</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>1.7.12</version>
</dependency>
Any idea?

Answer 1

upgrade dependency of slf4f :
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.22</version>
</dependency>
use private static final Logger logger = LoggerFactory.getLogger(class-name.class); into class in which you want to create logs.
use bellow log4j configuration :-
Root logger option
log4j.rootLogger=INFO, file
Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=./logs/log.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
log4j.logger.org.springframework=WARN
log4j.logger.com.amstech=DEBUG

Answer 2

I'm not sure of all the setup but if you put log4j lib/config in the container you can need to set in conf/system.properties:
openejb.logger.external=true
otherwise (for legacy reasons), tomee will setup log4j in a custom way making your configuration not respected. This property just means "use normal log4j behavior".