Viz: use separate log config file

build.gradle

@@ -43,8 +43,9 @@ run {
 }
 
 task runViz(type: JavaExec) {
+    description = "Run the visualizer log processor"
     dependsOn classes
-    systemProperty 'logback.configurationFile', 'src/main/resources/logback.xml'
+    systemProperty 'logback.configurationFile', 'src/main/resources/logback-viz.xml'
     classpath sourceSets.main.runtimeClasspath
     main = 'Viz'
 }

src/main/resources/logback-viz.xml

@@ -0,0 +1,31 @@
+<configuration>
+
+  <logger name="com.espertech.esper" level="WARN" />
+  <logger name="org.thymeleaf" level="WARN" />
+
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <!-- On Windows machines setting withJansi to true enables ANSI
+         color code interpretation by the Jansi library. This requires
+         org.fusesource.jansi:jansi:1.8 on the class path.  Note that
+         Unix-based operating systems such as Linux and Mac OS X
+         support ANSI color codes by default. -->
+    <withJansi>true</withJansi>
+    <encoder>
+      <pattern>%highlight(%-5level) %cyan(%logger{15}) - %msg %n</pattern>
+    </encoder>
+  </appender>
+
+  <!-- The primary log file.  For all runtime messages. -->
+  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
+    <file>logs/viz-converter.log</file>
+    <append>false</append>
+    <encoder>
+      <pattern>%date %-5level %logger{35}: %msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <root level="DEBUG">
+      <appender-ref ref="STDOUT" />
+      <appender-ref ref="FILE" />
+  </root>
+</configuration>