Customizing log4j1 configuration using override extensibility

With override extensibility, you can customize log4j1 configuration by creating a copy of the application-provided log4jconfig.xml file and extending it.

1. Copy the application-provided log4jconfig.xml file from <runtime_sandbox>/resources/ to runtime_sandbox>/extensions/global/resources and rename it as log4jconfig_custom.xml. Customize it based on your business requirement.
2. In the customer_overrides.properties file, set the value of yfs.log4j.configuration property to /resources/extn/log4jconfig_custom.xml.
   Consider the following application-provided appended:

   <appender name="ALL" class="com.sterlingcommerce.woodstock.util.frame.logex.SCIAppender">
           <param name="rotateLogs" value="true" />
           <param name="maxLogSize" value="100000" />
           <param name="maxNumLogs" value="10" />
           <param name="file" value="/opt/OM/runtime/logs/sci${IBM_LOG_FILE}.log" />
           <layout class="com.sterlingcommerce.woodstock.util.frame.logex.SCICommonLayout">
               <param name="ConversionPatternRef" value="appender.ALL.pattern"/>
               <param name="DefaultConversionPattern" value="%d:%-7p:%t: %-60m [%X{AppUserId}]: [%X{TenantId}]: %-25c{1}%n"/>
           </layout>
           <filter class="com.sterlingcommerce.woodstock.util.frame.logex.SCICommonFilter" />
           <filter class="com.sterlingcommerce.woodstock.util.frame.logex.SCIPatternFilter" />
       </appender>

   To use override extensibility for the application-provided appender, override the appender in the <runtime_sandbox>/extensions/global/resources/log4jconfig_custom.xml file.

   <appender name="ALL" class="com.sterlingcommerce.woodstock.util.frame.logex.SCIAppender">
           <param name="rotateLogs" value="false" />
           <param name="maxLogSize" value="100000" />
           <!--<param name="maxNumLogs" value="10" />-->
           <param name="file" value="/opt/SSFS_9.5/runtime/logs/sci${IBM_LOG_FILE}_custom.log" />
           <layout class="com.sterlingcommerce.woodstock.util.frame.logex.SCICommonLayout">
               <param name="ConversionPatternRef" value="appender.ALL.pattern"/>
               <param name="DefaultConversionPattern" value="%d:%-8p:%t: %-60m [%X{AppUserId}]: [%X{TenantId}]: %-25c{1}%n"/>
           </layout>
           <filter class="com.abcdcorp.CustomFilter" />
           <filter class="com.sterlingcommerce.woodstock.util.frame.logex.SCICommonFilter" />
           <filter class="com.sterlingcommerce.woodstock.util.frame.logex.SCIPatternFilter" />
       </appender>

   Consider the following application-provided category:

   <category  name="com.ibm" class="com.yantra.yfc.log.YFCLogCategory" additivity="false" >
           <level class="com.yantra.yfc.log.YFCLogLevel" value="WARN"  />
            <appender-ref ref="CONSOLE" />
           <appender-ref ref="ALL" />
       </category>

   To use differential extensibility for the application-provided category, override the category in the <runtime_sandbox>/extensions/global/resources/deltalog4jconfig/log4jconfig.xml file.

   <category name="com.ibm" class="com.yantra.yfc.log.YFCLogCategory" additivity="false" >
           <level class="com.yantra.yfc.log.YFCLogLevel" value="WARN"  />
           <appender-ref ref="CONSOLE" />
           <appender-ref ref="ALL" />
           <appender-ref ref="CUSTOM_APPENDER" />
       </category>