log4j

Capture log4J output with grep

Hi, I know that log4j by default outputs to stderror. I have been capturing the out put of my application with the following command: application_to_run 2> log ; cat log | grep FATAL Is there a way to capture the output without the auxiliary file? ...

Append message to JBoss Console using jboss-log4j.xml

I'm unable to append messages from my application to the JBoss console. The following are the changes that I made to the jboss-log4j.xml configuration file: <category name="com.tricubes"> <priority value="INFO"/> <appender-ref ref="CONSOLE"/> </category> Here is my code: public class OneToOneValidation2 { private static ...

Using same log4j logger in standalone java application

I have some code which is a standalone java application comprising of 30+ classes. Most of these inherit from some other base classes. Each and every class has this method to get and use a log4j logger public static Logger getLogger() { if (logger != null) return logger; try { PropertyUtil propUtil = PropertyUtil.getIn...

Does Hibernate log the values that it assigns to placeholders in prepared SQL statements?

Does Hibernate log the values that it assigns to placeholders in prepared SQL statements? How can configure Log4j so that it writes these values to my log files? ...

Translate Basic Config.groovy log4j DSL to external log4j.properties

The following is a basic log4j configuration inside Config.groovy using the log4j DSL with Grails 1.2, it works as expected (log all errors to the given file): log4j = { appenders { file name:'file', file:"c:/error.log" } error 'grails.app' root { error 'file' } } How would one translate this into...

logging one thread in Java using log4j

I have an web application written in Java, and I have a thread-pool. The application is huge, and I cannot make major changes, for example, I cannot change log4j. I am executing a batch process in the thread pool, and I want to log everything that goes is executed to execute that process. There will always be just one thread active in...

Log4j: Configuring FallbackErrorHandler with Properties

I use log4j in my project and wanted to use FallbackErrorHandler for Backup-Reasons. So, when I want to implement a FallbackErrorHandler, you have to use the DOMConfigurator and that for a XML-Configurationfile. But now, my customer doesn´t really like XML and looking for a way, he can configure the Logging-behaviour himself, I got the...

log4j performance

Hi, I'm developing a web app, and I'd like to log some information to help me improve and observe the app. (I'm using Tomcat6) First I thought I would use StringBuilders, append the logs to them and a task would persist them into the database like every 2 minutes. Because I was worried about the out-of-the-box logging system's performa...

No Commons Logging in Android?

I have a pretty big library I developed specifically for use in my Android Application. However business logic itself has no dependency on Android. To preserve that, I used Commons Logging throughout this library and it's respective JUnit tests (which I run in Eclipse). However now that I am starting to integrate it into an Activity w...

log4j in struts 2 deployed in websphere running in AIX

I use log4j in struts2 application which is deployed in websphere running on AIX mechine. I am getting following error Error 500: Filter [struts2]: could not be initialized [6/17/10 10:37:02:247 CDT] 00000029 WebApp E [Servlet Error]-[Filter [struts2]: could not be initialized]: java.lang.NoClassDefFoundError: org.apache.struts...

How do you flush a buffered log4j FileAppender?

In log4j, when using a FileAppender with BufferedIO=true and BufferSize=xxx properties (i.e. buffering is enabled), I want to be able to flush the log during normal shutdown procedure. Any ideas on how to do this? ...

WebService loggin using log4j in tomcat container

Hi, I have my webservice deployed on Apache tomcat 5.5. When I run my webservice using eclipse IDE, it prints logs to the location I have specified . I have put log4j property file for my webservice in the apache-tomcat-5.5.28/common/classes folder. Problem is , when i run this using webservice .aar file which is put in to apache-tomca...

Log4j exception in grails

Hi, when I try this: log.debug("Id:" + domain.id) being domain.id a long value, I get the exception: Exception Message: No signature of method: groovy.util.ConfigObject.debug() is applicable for argument types: (java.lang.String) values: [Id:9] Possible solutions: getAt(java.lang.String), dump(), get(java.lang.Object), get(java.lang....

log4j with multiple WebLogic instances

Hi all, I'm creating a Java Web Services application. I intend to run multiple instances of WebLogic on each machine in a cluster. I'd like each application instance to write to its own log file, but I'm not sure how to do so without creating instance specific log4j properties files. Is there some way for me to dynamically determine th...

Will the Java optimizer remove parameter construction for empty method calls?

Suppose I have code like : log.info("Now the amount" + amount + " seems a bit high") and I would replace the log method with a dummy implementation like : class Logger { ... public void info() {} } Will the optimiwer inline it and will the dead code removal remove the parameter construction if no side effects are detected? ...

Multiple files with Log4j

Hi, I'm using log4j to log several informations. I'd like to separate these infos into multiple files. My configuration file is similar to this: #logger_1 log4j.logger.logger_1=debug, logger_1_File log4j.appender.logger_1_File=org.apache.log4j.RollingFileAppender log4j.appender.logger_1_File.l...

log4j warning message while using log4j.xml

i'm trying to convert my log4j.properties into log4j.xml because i need to use some of the filter feature. i'm getting a bunch of warning when i start the application, i'm not exactly sure how to solve them: log4j:WARN Continuable parsing error 4 and column 69 log4j:WARN Attribute "threshold" for element type "log4j:configuration" has a...

Weblogic 10 JDK VS Log4j logging implementation

WebLogic 10 uses JDK logging implementation by default, but it can be changed to Log4j. Is there any real advantage of using Log4j implementation? Do you know of the pros/cons of each alternative? ...

log4j: output file depending on source calling class

Hi all suppose I have a common class with logger initialized by its name: public class SomeCalculationLogic { private static final Log log = LogFactory.getLog(SomeCalculationLogic .class); public void doCalculation() { log.info("doing calculations..."); ... } } This class is used by two logically different flows - say it...

Logging for application in different environment Log4j

Hi, I am developing a logging framework using Log4j. I am not able to figure out how to maintain separate log files for different environment, i.e., development, testing, staging and production. ...