| Interface | Description | 
|---|---|
| MetricsComponentRegistry | 
 Registry Entry for Metrics Components. 
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| MetricsReporter | 
 Interface of reporter that reports all metrics value to third party monitor. 
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| MetricsService | 
 Metrics Service to collect metrics. 
 | 
| Class | Description | 
|---|---|
| EventMetric | 
 Metric measurements for events. 
 | 
| MetricsComponent | 
 Components to register for metrics. 
 | 
| MetricsFeature | 
 Features to tag metrics. 
 | 
| MetricsManager | 
 This class holds the Metrics registry for ONOS. 
 | 
| MetricsUtil |