Ray Milkey | 26921af | 2014-06-30 16:27:40 -0700 | [diff] [blame^] | 1 | package net.onrc.onos.core.metrics; |
| 2 | |
| 3 | import com.codahale.metrics.Gauge; |
| 4 | import com.codahale.metrics.MetricRegistry; |
| 5 | import com.codahale.metrics.Timer; |
| 6 | import com.codahale.metrics.Counter; |
| 7 | import com.codahale.metrics.Meter; |
| 8 | import com.codahale.metrics.Histogram; |
| 9 | import org.restlet.representation.Representation; |
| 10 | import org.restlet.resource.Get; |
| 11 | import org.restlet.resource.ServerResource; |
| 12 | |
| 13 | import java.util.ArrayList; |
| 14 | import java.util.List; |
| 15 | import java.util.Map; |
| 16 | |
| 17 | /** |
| 18 | * REST APIs for Metrics objects. |
| 19 | */ |
| 20 | public class MetricsResource extends ServerResource { |
| 21 | |
| 22 | /** |
| 23 | * REST API to get all of the system's metrics. |
| 24 | * |
| 25 | * @return a Representation object containing the metrics |
| 26 | */ |
| 27 | @Get("json") |
| 28 | @SuppressWarnings("rawtypes") |
| 29 | public Representation retrieve() throws Exception { |
| 30 | final MetricRegistry registry = OnosMetrics.getMetricsRegistry(); |
| 31 | final MetricsObjectResource result = new MetricsObjectResource(); |
| 32 | |
| 33 | final List<MetricsObjectResource.TimerObjectResource> timers = |
| 34 | new ArrayList<>(); |
| 35 | final List<MetricsObjectResource.GaugeObjectResource> gauges = |
| 36 | new ArrayList<>(); |
| 37 | final List<MetricsObjectResource.CounterObjectResource> counters = |
| 38 | new ArrayList<>(); |
| 39 | final List<MetricsObjectResource.MeterObjectResource> meters = |
| 40 | new ArrayList<>(); |
| 41 | final List<MetricsObjectResource.HistogramObjectResource> histograms = |
| 42 | new ArrayList<>(); |
| 43 | |
| 44 | for (final Map.Entry<String, Timer> timer : |
| 45 | registry.getTimers().entrySet()) { |
| 46 | timers.add(new MetricsObjectResource.TimerObjectResource( |
| 47 | timer.getKey(), timer.getValue())); |
| 48 | } |
| 49 | result.setTimers(timers); |
| 50 | |
| 51 | for (final Map.Entry<String, Gauge> gauge : |
| 52 | registry.getGauges().entrySet()) { |
| 53 | gauges.add(new MetricsObjectResource.GaugeObjectResource( |
| 54 | gauge.getKey(), gauge.getValue())); |
| 55 | } |
| 56 | result.setGauges(gauges); |
| 57 | |
| 58 | for (final Map.Entry<String, Counter> counter : |
| 59 | registry.getCounters().entrySet()) { |
| 60 | counters.add(new MetricsObjectResource.CounterObjectResource( |
| 61 | counter.getKey(), counter.getValue())); |
| 62 | } |
| 63 | result.setCounters(counters); |
| 64 | |
| 65 | for (final Map.Entry<String, Meter> meter : |
| 66 | registry.getMeters().entrySet()) { |
| 67 | meters.add(new MetricsObjectResource.MeterObjectResource( |
| 68 | meter.getKey(), meter.getValue())); |
| 69 | } |
| 70 | result.setMeters(meters); |
| 71 | |
| 72 | for (final Map.Entry<String, Histogram> histogram : |
| 73 | registry.getHistograms().entrySet()) { |
| 74 | histograms.add(new MetricsObjectResource.HistogramObjectResource( |
| 75 | histogram.getKey(), histogram.getValue())); |
| 76 | } |
| 77 | result.setHistograms(histograms); |
| 78 | |
| 79 | return toRepresentation(result, null); |
| 80 | } |
| 81 | |
| 82 | } |