Projects tagged ‘java’ and ‘log4j’

log4j is a Java-based logging utility, and is one of many projects from the Apache Software Foundation. It is used primarily as a debugging tool.

Direct Democracy Portal, mixing open source with politics to create a portal for online organisations governed through direct democracy. Using maven, mysql, hibernate annotations (EJB 3.0), spring framework and ThinWire RIA Ajax Framework.

RSSAppender is a MIT licensed Log4j appender with a tiny embedded web server.

An appender to send formatted logging event strings to a specified managment host (typically, a MLM of some sort, but could also be an SNMP management console) in the form of an SNMP trap. This appender does not attempt to provide full access to ... [More] the SNMP API. In particular, use of this appender does not make an SNMP agent out of the calling application. You cannot use this appender as an interface to do SNMP GET or SET calls -- all it does is pass on your logging event as a TRAP. This appender uses a helper class which serves as the interface to the SNMP sub-system. This class must implement the SnmpTrapSenderFacade interface. The concrete implementation class you want to use must be specified in your properties file -- see the examples below. The implementation class must provide a parameterless constructor -- this is the constructor that Log4J will use to instantiate the class using the class name in the properties file. There are three implementation classes provided with this appender; the JoeSNMPTrapSender, the WengsoftSNMPTrapSender and the NetSnmpCommandLineTrapSender classes. If you fail to specify an implementation in your properties file, or if there is a problem finding, loading or instantiating the implementation that you do specify, the appender will fall back to using the JoeSNMPTrapSender implementation as a default. You can and should, as your needs dictate, write your own implementation of SnmpTrapSenderFacade, using the underlying SNMP library of your choice. In this case, the implementations provided with the appender should serve as adequate examples for how this might be done. Here's a sample of what you would need in an XML configuration file to configure this appender: To configure an otherwise identical appender that uses a different implementation class, you would simply change the value of the "ImplementationClassName", as in the following example: To configure the appender to use a delimited conversion pattern, to allow multiple VarBinds, you would drop the parameter from the configuration, and change the Layout class to SnmpDelimitedConversionPatternLayout. You would then need to set the appropriate parameters of the Layout class. See SnmpDelimitedConversionPatternLayout for an explanation of using multiple VarBinds. Here's a sample of what you would need in a properties configuration file to configure this appender: log4j.appender.TRAP_LOG=org.apache.log4j.ext.SNMPTrapAppender log4j.appender.TRAP_LOG.ImplementationClassName=org.apache.log4j.ext.JoeSNMPTrapSender log4j.appender.TRAP_LOG.ManagementHost=127.0.0.1 log4j.appender.TRAP_LOG.ManagementHostTrapListenPort=162 log4j.appender.TRAP_LOG.EnterpriseOID=1.3.6.1.4.1.24.0 log4j.appender.TRAP_LOG.LocalIPAddress=127.0.0.1 log4j.appender.TRAP_LOG.LocalTrapSendPort=161 log4j.appender.TRAP_LOG.GenericTrapType=6 log4j.appender.TRAP_LOG.SpecificTrapType=12345678 log4j.appender.TRAP_LOG.ApplicationTrapOID=1.3.6.1.4.1.24.12.10.22.64 log4j.appender.TRAP_LOG.CommunityString=public log4j.appender.TRAP_LOG.ForwardStackTraceWithTrap=true log4j.appender.TRAP_LOG.Threshold=DEBUG log4j.appender.TRAP_LOG.layout=org.apache.log4j.PatternLayout log4j.appender.TRAP_LOG.layout.ConversionPattern=%d,%p,[%t],[%c],%m%n Here's an example using the properties file format the uses the delimited conversion pattern technique to allow multiple VarBinds: log4j.appender.TRAP_LOG=org.apache.log4j.ext.SNMPTrapAppender log4j.appender.TRAP_LOG.ImplementationClassName=org.apache.log4j.ext.JoeSNMPTrapSender log4j.appender.TRAP_LOG.ManagementHost=127.0.0.1 log4j.appender.TRAP_LOG.ManagementHostTrapListenPort=162 log4j.appender.TRAP_LOG.EnterpriseOID=1.3.6.1.4.1.24.0 log4j.appender.TRAP_LOG.LocalIPAddress=127.0.0.1 log4j.appender.TRAP_LOG.LocalTrapSendPort=161 log4j.appender.TRAP_LOG.GenericTrapType=6 log4j.appender.TRAP_LOG.SpecificTrapType=12345678 log4j.appender.TRAP_LOG.CommunityString=public log4j.appender.TRAP_LOG.ForwardStackTraceWithTrap=true log4j.appender.TRAP_LOG.Threshold=DEBUG log4j.appender.TRAP_LOG.layout=org.apache.log4j.ext.SnmpDelimitedConversionPatternLayout log4j.appender.TRAP_LOG.layout.ValuePairDelim=/ log4j.appender.TRAP_LOG.layout.VarDelim=; log4j.appender.TRAP_LOG.layout.ConversionPattern= %p;1.3.6.1.4.1.24.100.1/%m;1.3.6.1.4.1.24.100.2/%C{1};1.3.6.1.4.1.24.100.3 This software is based on the log4j software provided by the Apache Jakrta log4j project. This software is released under a version of the Apache license version 1.1 -- please see the LICENSE.TXT file included with this distribution for details. Version 1.2.9.1 2001-09-29 changes --- 2001-10-03: mwm : made changes needed to support v.1.1.1 of the SNMPTrapSenderFacade 2002-09-02: mwm : changed to be compatible with Log4J v. 1.2.x 2002-10-03: mwm : Made changes, mainly in #append, to deal with the new SnmpTrapSenderFacade interface architecture. 2002-10-15: mwm: Included the SysUpTimeResolver contributed by Thomas Muller. 2002-10-15: mwm : changed the sysUpTime value to a long, to cope with the SysUpTimeResolver mechanism. 2002-12-10: mwm : minor tweaks and prettying up of code. 2003-03-21: mwm : incorporated the first cut of Matt Monks's code to use a delimited conversion pattern string to allow mutliple VarBinds to be attached to the trap PDU. 2003-03-22: mwm : after reading Ceki's fine new book on Log4J, made several changes (for example, to the implementation of #close) to correct deficiencies in this class as an implementation of AppenderSkeleton. Also improved/added handling of the stack trace of the Throwable associated with the LoggingEvent, again inspired by Ceki's example in the new book. 2003-03-23: mwm : building on Matt Monks's ideas, added the SnmpDelimitedConversionPatternLayout, and used it to refactor the handling of the delimited conversion pattern case. 2003-05-24: mwm : minor changes to accomodate the change in the SnmpTrapSenderFacade interface, and added two new properties. 2003-07-05: mwm : some improvement in the exception handling of #loadImplementationClass Author: Mark Masterson (m.masterson@computer.org), Thomas Muller (ttm@online.no), Matt Monks (Matthew.Monks@netdecisions.com) [Less]