OSB, WebLogic and Logback / SLF4j

Being totally fed up with the OSB reporting provider, I am setting up logback.
Maven:

<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-core</artifactId>
  <version>1.0.13</version>
</dependency>
<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-classic</artifactId>
  <version>1.0.13</version>
</dependency>
             
<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-parent</artifactId>
  <version>1.0.13</version>
  <type>pom</type>
</dependency>
 
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.5</version>
</dependency>

vi /opt/oracle/fmw11_1_1_5/wlserver_10.3/common/bin/commEnv.sh

add this to WEBLOGIC_CLASSPATH:

${CLASSPATHSEP}/opt/oracle/fmw11_1_1_5/wlserver_10.3/server/lib/slf4j-api-1.7.5.jar${CLASSPATHSEP}/opt/oracle/fmw11_1_1_5/wlserver_10.3/server/lib/logback-core-1.0.13.jar${CLASSPATHSEP}/opt/oracle/fmw11_1_1_5/wlserver_10.3/server/lib/logback-classic-1.0.13.jar

and copy the JARs:

cd /opt/oracle/fmw11_1_1_5/wlserver_10.3/server/lib/

this only if you have Nexus, otherwise.... copy them manually:

wget http://nexus.nespresso.com/service/local/repositories/adobe-ext/content/ch/qos/logback/logback-core/1.0.13/logback-core-1.0.13.jar

wget http://nexus.nespresso.com/service/local/repositories/adobe-ext/content/ch/qos/logback/logback-classic/1.0.13/logback-classic-1.0.13.jar

wget http://nexus.nespresso.com/service/local/repositories/adobe-ext/content/org/slf4j/slf4j-api/1.7.5/slf4j-api-1.7.5.jar

vi /opt/oracle/domains/osbpl1do/config/osb/logback.xml

<configuration debug="true" scan="true" scanPeriod="30 seconds">
    <jmxConfigurator />
 
    <property name="LOG_DIR" value="/opt/var/log/weblogic/server/" />
 
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder
            by default -->
        <encoder>
            <pattern>%d %-5level [%thread] %logger{36} - %msg%n
            </pattern>
        </encoder>
    </appender>
 
    <appender name="GM"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_DIR}GM.log</file>
            <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
              <fileNamePattern>GM.%i.log.zip</fileNamePattern>
              <minIndex>1</minIndex>
              <maxIndex>10</maxIndex>
            </rollingPolicy>
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
              <maxFileSize>50MB</maxFileSize>
            </triggeringPolicy>
            <encoder>
                <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
                </pattern>
            </encoder>
    </appender>
 
 
    <logger name="POC_LOG4j" additivity="false" level="INFO">
        <appender-ref ref="GM" />
    </logger>
 
    <root level="DEBUG">
        <appender-ref ref="STDOUT" />
    </root>
 
 
</configuration>

I provide a custom XPath to log :

package com.acme.osb.logging;
import org.apache.xmlbeans.XmlObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 * Used by OSB to report an Event
 *
 * @author NNVernetPI
 *
 */
public class MessageTrackerSLF4J {
    public static String logMessage(String technicalMessageid,
            String businessId, String eventType, String interfaceName,
            XmlObject payload) {
        Logger projectLogger = LoggerFactory.getLogger(interfaceName);
        StringBuilder sb = new StringBuilder();
        if (projectLogger.isDebugEnabled()) {
            sb.append(" ::InterfaceName::  ").append(interfaceName)
                    .append(" ::Payload:: ").append(payload.xmlText())
                    .append(" ::BusinessID::  ").append(businessId);
        } else {
            sb.append(" ::TechnicalMessageID::  ").append(technicalMessageid)
                    .append(" ::BusinessID::  ").append(businessId)
                    .append(" ::InterfaceName::  ").append(interfaceName)
                    .append(" ::EventType::  ").append(eventType)
                    .append(" ::ServerName:: ")
                    .append(System.getProperty("weblogic.Name"));
        }
        projectLogger.info(sb.toString());
        String logmessage = "Info Message Logged for:: " + interfaceName;
        return logmessage;
    }
    public static String errorLogger(String technicalMessageid,
            String businessId, String interfaceName, XmlObject payload,
            String priority, XmlObject fault) {
        Logger projectLogger = LoggerFactory.getLogger(interfaceName);
        StringBuilder sb = new StringBuilder();
        sb.append("::TechnicalMessageID::  ").append(technicalMessageid)
                .append("  ::InterfaceName::  ").append(interfaceName)
                .append("  ::BusinessID::  ").append(businessId)
                .append(" ::Payload:: ").append(payload.xmlText())
                .append(" ::Priority::  ").append(priority)
                .append(" ::FaultDescription:: ").append(fault.xmlText())
                .append(" ::ServerName:: ")
                .append(System.getProperty("weblogic.Name"));
        projectLogger.error(sb.toString());
        String responseMessage = "Error Message Logged for:: " + interfaceName;
        return responseMessage;
    }
}

which I expose as XPath this way:

  <xpf:function>
            <xpf:name>LOG_SLF_errorLogger</xpf:name>
            <xpf:comment>logs an error</xpf:comment>
            <xpf:namespaceURI>http://www.acme.com/acme2/xquery/xquery-functions</xpf:namespaceURI>
            <xpf:className>com.acme.osb.logging.MessageTrackerSLF4J</xpf:className>
            <xpf:method>java.lang.String errorLogger(java.lang.String, java.lang.String, java.lang.String, org.apache.xmlbeans.XmlObject, java.lang.String, org.apache.xmlbeans.XmlObject)</xpf:method>
            <xpf:isDeterministic>false</xpf:isDeterministic>
            <xpf:scope>Pipeline</xpf:scope>
            <xpf:scope>SplitJoin</xpf:scope>
        </xpf:function>     
        
  <xpf:function>
            <xpf:name>LOG_SLF_messageTracker</xpf:name>
            <xpf:comment>logs an event</xpf:comment>
            <xpf:namespaceURI>http://www.acme.com/acme2/xquery/xquery-functions</xpf:namespaceURI>
            <xpf:className>com.acme.osb.logging.MessageTrackerSLF4J</xpf:className>
            <xpf:method>java.lang.String logMessage(java.lang.String, java.lang.String, java.lang.String, java.lang.String, org.apache.xmlbeans.XmlObject)</xpf:method>
            <xpf:isDeterministic>false</xpf:isDeterministic>
            <xpf:scope>Pipeline</xpf:scope>
            <xpf:scope>SplitJoin</xpf:scope>
        </xpf:function>        

Since I have activated the jmxConfigurator, I can reload the logback.xml configuration file by connecting with JMX:

jconsole -J-Djava.class.path=C:\Oracle\MIDDLE~1\JDK160~1\lib\jconsole.jar;C:\Oracle\MIDDLE~1\JDK160~1\lib\tools.jar;C:\Oracle\Middleware\wlserver_10.3\server\lib\wlfullclient.jar -J-Djmx.remote.protocol.provider.pkgs=weblogic.management.remote -debug
and connect as:
service:jmx:iiop://myserver.acme.com:8001/jndi/weblogic.management.mbeanservers.runtime

 

The advantage is that I can also set programmatically the logger level for each logger, via JMX.

see here the doc, the first argument is the loggerName, the second is the level

A note: reloadByFileName() requires the FULL PATH : /opt/oracle/domains/osbpl1do/config/osb/logback.xml