Move Metrics REST classes to appropriate directories
Moved Metrics Resource classes to net.onrc.onos.core.metrics.web
Moved Metrics Serializer class to net.onrc.onos.core.metrics.web.serializers
Change-Id: I2dec174baaee818feb74333cd17bd9ac61e05d83
diff --git a/src/main/java/net/onrc/onos/core/metrics/web/MetricsResource.java b/src/main/java/net/onrc/onos/core/metrics/web/MetricsResource.java
new file mode 100644
index 0000000..89746e3
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/metrics/web/MetricsResource.java
@@ -0,0 +1,125 @@
+package net.onrc.onos.core.metrics.web;
+
+import com.codahale.metrics.Counter;
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Histogram;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.Metric;
+import com.codahale.metrics.MetricFilter;
+import com.codahale.metrics.Timer;
+import net.onrc.onos.core.metrics.OnosMetrics;
+import org.restlet.representation.Representation;
+import org.restlet.resource.Get;
+import org.restlet.resource.ServerResource;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * REST APIs for Metrics objects.
+ */
+public class MetricsResource extends ServerResource {
+
+ /**
+ * Metric filter to allow selecting metrics by name.
+ */
+ private static class MetricNameFilter implements MetricFilter {
+ final HashSet<String> names;
+
+ /**
+ * Hide default constructor.
+ */
+ @SuppressWarnings("unused")
+ private MetricNameFilter() {
+ names = null;
+ }
+
+ /**
+ * Initializes a filter for the given name list.
+ *
+ * @param nameListString comma separated list of strings of the
+ * names of metrics to query
+ */
+ public MetricNameFilter(final String nameListString) {
+
+ if (nameListString == null) {
+ names = null;
+ } else {
+ List<String> nameList = Arrays.asList(nameListString.split(","));
+ names = new HashSet<>();
+ names.addAll(nameList);
+ }
+ }
+
+ @Override
+ public boolean matches(String s, Metric metric) {
+ return names == null || names.contains(s);
+ }
+ }
+ /**
+ * REST API to get all of the system's metrics.
+ *
+ * @return a Representation object containing the metrics
+ */
+ @Get("json")
+ @SuppressWarnings("rawtypes")
+ public Representation retrieve() {
+ final MetricsObjectResource result = new MetricsObjectResource();
+
+ final List<MetricsObjectResource.TimerObjectResource> timers =
+ new ArrayList<>();
+ final List<MetricsObjectResource.GaugeObjectResource> gauges =
+ new ArrayList<>();
+ final List<MetricsObjectResource.CounterObjectResource> counters =
+ new ArrayList<>();
+ final List<MetricsObjectResource.MeterObjectResource> meters =
+ new ArrayList<>();
+ final List<MetricsObjectResource.HistogramObjectResource> histograms =
+ new ArrayList<>();
+
+ final String metricIdsString = getQuery().getValues("ids");
+
+ final MetricFilter filter = new MetricNameFilter(metricIdsString);
+
+ for (final Map.Entry<String, Timer> timer :
+ OnosMetrics.getTimers(filter).entrySet()) {
+ timers.add(new MetricsObjectResource.TimerObjectResource(
+ timer.getKey(), timer.getValue()));
+ }
+ result.setTimers(timers);
+
+ for (final Map.Entry<String, Gauge> gauge :
+ OnosMetrics.getGauges(filter).entrySet()) {
+ gauges.add(new MetricsObjectResource.GaugeObjectResource(
+ gauge.getKey(), gauge.getValue()));
+ }
+ result.setGauges(gauges);
+
+ for (final Map.Entry<String, Counter> counter :
+ OnosMetrics.getCounters(filter).entrySet()) {
+ counters.add(new MetricsObjectResource.CounterObjectResource(
+ counter.getKey(), counter.getValue()));
+ }
+ result.setCounters(counters);
+
+ for (final Map.Entry<String, Meter> meter :
+ OnosMetrics.getMeters(filter).entrySet()) {
+ meters.add(new MetricsObjectResource.MeterObjectResource(
+ meter.getKey(), meter.getValue()));
+ }
+ result.setMeters(meters);
+
+ for (final Map.Entry<String, Histogram> histogram :
+ OnosMetrics.getHistograms(filter).entrySet()) {
+ histograms.add(new MetricsObjectResource.HistogramObjectResource(
+ histogram.getKey(), histogram.getValue()));
+ }
+ result.setHistograms(histograms);
+
+ return toRepresentation(result, null);
+ }
+
+}