Create a component for metrics

@@ -60,6 +60,10 @@
             <artifactId>metrics-core</artifactId>
             <version>3.1.0</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.apache.felix.scr.annotations</artifactId>
+        </dependency>
     </dependencies>
 
 </project>

@@ -7,6 +7,10 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.TimeUnit;
 
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+
 import com.codahale.metrics.Counter;
 import com.codahale.metrics.CsvReporter;
 import com.codahale.metrics.Gauge;
@@ -49,6 +53,7 @@ import com.codahale.metrics.Timer;
  *   </code>
  * </pre>
  */
+@Component(immediate = true)
 public final class MetricsManager implements MetricsService {
 
     /**
@@ -79,6 +84,14 @@ public final class MetricsManager implements MetricsService {
         reporter.start(10, TimeUnit.SECONDS);
     }
 
+    @Activate
+    public void activate() {
+    }
+
+    @Deactivate
+    public void deactivate() {
+    }
+
     /**
      * Registers a component.
      *