What the start up class gives (in an EJB environment) is the ability to load the configuration file at the application start up (not the server start up), i.e., if the location of the configuration file changes, you don't have to bring down your application server to reload it (in this case you just stop and start the application).
Srini -----Original Message----- From: Francesco Russo [mailto:[EMAIL PROTECTED] Sent: Monday, October 11, 2004 9:32 AM To: Log4J Users List Subject: Re: dummy://log4j.dtd (log4j problem in Oracle 10gAS) Unlikely I would like not to use a startup class. Instead I would like to leverage the ability of Logger.getLogger(...) to properly configure log4j according to the file given by the -Dlog4j.configuration system property. Any solution? Zhong Lun wrote: > There is no problem to load the log4j.xml or log4j.properties through classload, see > my code, the problem is the dtd - not sure what the meaning of dummy://log4j.dtd. > And that particular doConfigure is "protected" so I cannot change. A quick solution > is to use log4j properties but I still want to know and learn something. > > "Chennamaraja, Srinivas" <[EMAIL PROTECTED]> wrote:The way I have done is..(at least > in WebSphere). The WebSphere provides > a StartUp class that is guaranteed to be called by the EJB Container > before it loads the application ear file. > > so in my start up class, I tried to load the configuration file (by > providing Url) and I package the log4j.jar file as part of my ear file. > it worked quite well for me > > thanks > Srini > > -----Original Message----- > From: Zhong Lun [mailto:[EMAIL PROTECTED] > Sent: Friday, October 08, 2004 9:28 AM > To: [EMAIL PROTECTED] > Subject: dummy://log4j.dtd (log4j problem in Oracle 10gAS) > > > Hi, > > Wonder who has log4j.xml experience in EJB environment? > > I tried on Oracle 10gAS on Windows (the iAS version actually is still > 9.0.4.2), my log4j initilization code looks like: > > InputStream inStream = > Thread.currentThread().getContextClassLoader().getResourceAsStream(sLogF > ileName); > new DOMConfigurator().doConfigure(inStream, > LogManager.getLoggerRepository()); > > There is no problem to load the log4j.xml however the application server > complains the log4j.dtd: > > -------- > 04/10/08 18:48:18 Start process > -------- > 04/10/08 18:48:33 Oracle Application Server Containers for J2EE 10g > (9.0.4.0.0) initialized > 04/10/08 18:49:09 log4j:ERROR Parsing error on line 0 and column 0 > 04/10/08 18:49:09 log4j:ERROR File "dummy://log4j.dtd" not found. > 04/10/08 18:49:09 log4j:ERROR Could not parse input source > [EMAIL PROTECTED] > 04/10/08 18:49:09 org.xml.sax.SAXException: Stopping after fatal error: > File "dummy://log4j.dtd" not found. > 04/10/08 18:49:09 at > org.apache.xerces.framework.XMLParser.reportError(XMLParser.java:1245) > 04/10/08 18:49:09 at > org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument( > DefaultEntityHandler.java:501) > 04/10/08 18:49:09 at > org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:314) > 04/10/08 18:49:09 at > org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1097) > 04/10/08 18:49:09 at > org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.jav > a:195) > 04/10/08 18:49:09 at > org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:66 > 5) > 04/10/08 18:49:09 at > org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:61 > 6) > > I check DOMConfiguration.java, it contains: > > docBuilder.setErrorHandler(new SAXErrorHandler()); > docBuilder.setEntityResolver(new Log4jEntityResolver()); > // we change the system ID to a valid URI so that Crimson won't > // complain. Indeed, "log4j.dtd" alone is not a valid URI which > // causes Crimson to barf. The Log4jEntityResolver only cares > // about the "log4j.dtd" ending. > inputSource.setSystemId("dummy://log4j.dtd"); > Document doc = docBuilder.parse(inputSource); > parse(doc.getDocumentElement()); > > Anybody has an idea and help me, thanks in advance. > > Regards > > > > > > > --------------------------------- > Do you Yahoo!? > Take Yahoo! Mail with you! Get it on your mobile phone. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com -- ______________________________________________________ Francesco Russo CINECA - Interuniversitary Computing Centre http://www.cineca.it via Magnanelli, 6/3 40033 Casalecchio di Reno (Bologna) - ITALY e-mail: [EMAIL PROTECTED] Phone: +39 051 6171 775 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
