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| |
| <a name="main"></a> |
| <div class="section" id="main"> |
| <h2><a name="How_To_view_logging_events_using_Apache_log4j_Chainsaw"></a>How To view logging events using Apache log4j Chainsaw</h2> |
| |
| <p> |
| Apache log4j™ includes <a class="externalLink" href="http://logging.apache.org/log4j/docs/chainsaw.html">Apache Chainsaw™</a> |
| a graphical log viewer. |
| </p> |
| |
| <p> |
| Chainsaw can either receive and display log events in realtime over |
| the network, or it can load a previously created log file. |
| </p> |
| |
| |
| <p> |
| Before Chainsaw can display data, one or more receivers must be setup. |
| This is usually done by specifying an xml config file when the program |
| first starts up. <br /> |
| Save one or more of the sample xml config files to your local system and |
| load them when Chainsaw starts. |
| </p> |
| |
| |
| <p> |
| Please note also that it may be necessary to configure Chainsaw tabs as reported as |
| issue <a class="externalLink" href="https://issues.apache.org/jira/browse/LOG4NET-259">LOG4NET-259</a>. |
| </p> |
| |
| <a name="udp"></a> |
| <div class="section" id="udp"> |
| <h2><a name="Logging_via_UDP"></a>Logging via UDP</h2> |
| |
| <p> |
| Apache log4net™ can be configured to log messages via UDP in such a way that Chainsaw |
| can receive and display them. |
| </p> |
| |
| <a name="udp-conf"></a> |
| <div class="section" id="udp-conf"> |
| <h2><a name="log4net_UDP_Configuration"></a>log4net UDP Configuration</h2> |
| |
| <p> |
| Configure log4net to use a UdpAppender with the following config snippet: |
| </p> |
| |
| |
| <div class="source"> |
| <pre> |
| <appender name="UdpAppender" type="log4net.Appender.UdpAppender"> |
| <remoteAddress value="127.0.0.1" /> |
| <remotePort value="8080" /> |
| <layout type="log4net.Layout.XmlLayoutSchemaLog4j"> |
| <locationInfo value="true" /> |
| </layout> |
| </appender></pre></div> |
| </div> |
| |
| <a name="udp-chainsaw"></a> |
| <div class="section" id="udp-chainsaw"> |
| <h2><a name="Chainsaw_UDP_receiver_Configuration"></a>Chainsaw UDP receiver Configuration</h2> |
| |
| <p> |
| Chainsaw should be configured to start a UDPReceiver using the |
| following configuration document: |
| </p> |
| |
| |
| <div class="source"> |
| <pre> |
| <?xml version="1.0" encoding="UTF-8" ?> |
| <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> |
| <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="true"> |
| <plugin name="UDPReceiver" class="org.apache.log4j.net.UDPReceiver"> |
| <param name="Port" value="8080" /> |
| </plugin> |
| </log4j:configuration></pre></div> |
| </div> |
| |
| </div> |
| |
| <a name="xml-file"></a> |
| <div class="section" id="xml-file"> |
| <h2><a name="Logging_to_XML_file"></a>Logging to XML file</h2> |
| |
| <p> |
| Chainsaw can also load an XML log file if it is formatted according |
| to the log4j schema. Use the following log4net config to output |
| to file using the log4j schema: |
| </p> |
| |
| |
| <div class="source"> |
| <pre> |
| <appender name="FileAppender" type="log4net.Appender.FileAppender"> |
| <file value="log-file.txt" /> |
| <appendToFile value="true" /> |
| <layout type="log4net.Layout.XmlLayoutSchemaLog4j"> |
| <locationInfo value="true" /> |
| </layout> |
| </appender></pre></div> |
| |
| |
| <p> |
| To load the file into Chainsaw drag the file into the Chainsaw |
| app and drop it on the tab labeled <i>Drag & Drop log files here</i>. |
| </p> |
| </div> |
| |
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| |
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