ONOS-2315 adding auto-complete to the CLI

Change-Id: I7b3056022188d58ca141bfec2870c7f1b44e37c2
diff --git a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 367013c..18702f7 100644
--- a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -64,6 +64,9 @@
 
         <command>
             <action class="org.onosproject.cli.MetricsListCommand"/>
+            <completers>
+                <ref component-id="metricNameCompleter"/>
+            </completers>
         </command>
 
         <command>
@@ -444,6 +447,7 @@
     <bean id="ExtHeaderCompleter" class="org.onosproject.cli.net.ExtHeaderCompleter"/>
 
     <bean id="startStopCompleter" class="org.onosproject.cli.StartStopCompleter"/>
+    <bean id="metricNameCompleter" class="org.onosproject.cli.MetricNameCompleter"/>
     <bean id="upDownCompleter" class="org.onosproject.cli.UpDownCompleter"/>
 
 </blueprint>