Mark sli error when some un-handled exception happened

Author: ligangty

addons/sli/jaxrs/src/main/java/org/commonjava/indy/sli/jaxrs/GoldenSignalsFilter.java

@@ -15,6 +15,7 @@
  */
 package org.commonjava.indy.sli.jaxrs;
 
+import org.commonjava.indy.sli.metrics.GoldenSignalsFunctionMetrics;
 import org.commonjava.indy.sli.metrics.GoldenSignalsMetricSet;
 import org.slf4j.MDC;
 
@@ -80,6 +81,12 @@ public void doFilter( final ServletRequest servletRequest, final ServletResponse
         {
             filterChain.doFilter( servletRequest, servletResponse );
         }
+        catch ( IOException | ServletException | RuntimeException e )
+        {
+            new HashSet<>( getFunctions() ).forEach(
+                    function -> metricSet.function( function ).ifPresent( GoldenSignalsFunctionMetrics::error ) );
+            throw e;
+        }
         finally
         {
             long end = System.nanoTime();