Added a framework for metrics
Added a metrics framework based on the codahale Metrics
package. ONOS can create a registry and maintain Metrics,
as well as dump out metrics values via a REST API. Unit
tests are include that test the REST APIs. Currently
supports Timers, Counters, Gauges, Meters, and Histograms.
Change-Id: I0f6ed87f889dc7037caf9aefc92e663702c6dda8
diff --git a/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java b/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java
new file mode 100644
index 0000000..6f046cf
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java
@@ -0,0 +1,53 @@
+package net.onrc.onos.core.metrics;
+
+import net.floodlightcontroller.core.module.FloodlightModuleContext;
+import net.floodlightcontroller.core.module.FloodlightModuleException;
+import net.floodlightcontroller.core.module.IFloodlightModule;
+import net.floodlightcontroller.core.module.IFloodlightService;
+import net.floodlightcontroller.restserver.IRestApiService;
+import net.onrc.onos.core.registry.IControllerRegistryService;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Floodlight module to add the REST APIs for Metrics.
+ */
+public class OnosMetricsModule implements IFloodlightModule {
+
+ private IRestApiService restApi;
+
+ @Override
+ public Collection<Class<? extends IFloodlightService>> getModuleServices() {
+ return null;
+ }
+
+ @Override
+ public Map<Class<? extends IFloodlightService>, IFloodlightService>
+ getServiceImpls() {
+ return null;
+ }
+
+ @Override
+ public Collection<Class<? extends IFloodlightService>> getModuleDependencies() {
+ List<Class<? extends IFloodlightService>> dependencies =
+ new ArrayList<>();
+ dependencies.add(IControllerRegistryService.class);
+ dependencies.add(IRestApiService.class);
+ return dependencies;
+ }
+
+ @Override
+ public void init(FloodlightModuleContext context)
+ throws FloodlightModuleException {
+ restApi = context.getServiceImpl(IRestApiService.class);
+ }
+
+ @Override
+ public void startUp(FloodlightModuleContext context) {
+ restApi.addRestletRoutable(new MetricsWebRoutable());
+ }
+}
+