Code replaced by micrometer. Fixes #3326

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/hystrix/HystrixCircuitBreakerConfiguration.java

@@ -49,116 +49,6 @@ public class HystrixCircuitBreakerConfiguration {
 		return HasFeatures.namedFeatures(new NamedFeature("Hystrix", HystrixCommandAspect.class));
 	}
 
-	//FIXME: 2.0.0
-	/*@Configuration
-	@ConditionalOnProperty(value = "hystrix.metrics.enabled", matchIfMissing = true)
-	@ConditionalOnClass({ HystrixMetricsPoller.class, GaugeService.class })
-	@EnableConfigurationProperties(HystrixMetricsProperties.class)
-	protected static class HystrixMetricsPollerConfiguration implements SmartLifecycle {
-
-		private static Log logger = LogFactory
-				.getLog(HystrixMetricsPollerConfiguration.class);
-
-		@Autowired(required = false)
-		private GaugeService gauges;
-
-		@Autowired
-		private HystrixMetricsProperties metricsProperties;
-
-		private ObjectMapper mapper = new ObjectMapper();
-
-		private HystrixMetricsPoller poller;
-
-		private Set<String> reserved = new HashSet<String>(Arrays.asList("group", "name",
-				"type", "currentTime"));
-
-		@Override
-		public void start() {
-			if (this.gauges == null) {
-				return;
-			}
-			MetricsAsJsonPollerListener listener = new MetricsAsJsonPollerListener() {
-				@Override
-				public void handleJsonMetric(String json) {
-					try {
-						@SuppressWarnings("unchecked")
-						Map<String, Object> map = HystrixMetricsPollerConfiguration.this.mapper
-								.readValue(json, Map.class);
-						if (map != null && map.containsKey("type")) {
-							addMetrics(map, "hystrix.");
-						}
-					}
-					catch (IOException ex) {
-						// ignore
-					}
-				}
-
-			};
-			this.poller = new HystrixMetricsPoller(listener,
-					metricsProperties.getPollingIntervalMs());
-			// start polling and it will write directly to the listener
-			this.poller.start();
-			logger.info("Starting poller");
-		}
-
-		private void addMetrics(Map<String, Object> map, String root) {
-			StringBuilder prefixBuilder = new StringBuilder(root);
-			if (map.containsKey("type")) {
-				prefixBuilder.append((String) map.get("type"));
-				if (map.containsKey("group")) {
-					prefixBuilder.append(".").append(map.get("group"));
-				}
-				prefixBuilder.append(".").append(map.get("name"));
-			}
-			String prefix = prefixBuilder.toString();
-			for (String key : map.keySet()) {
-				Object value = map.get(key);
-				if (!this.reserved.contains(key)) {
-					if (value instanceof Number) {
-						String name = prefix + "." + key;
-						this.gauges.submit(name, ((Number) value).doubleValue());
-					}
-					else if (value instanceof Map) {
-						@SuppressWarnings("unchecked")
-						Map<String, Object> sub = (Map<String, Object>) value;
-						addMetrics(sub, prefix + "." + key);
-					}
-				}
-			}
-		}
-
-		@Override
-		public void stop() {
-			if (this.poller != null) {
-				this.poller.shutdown();
-			}
-		}
-
-		@Override
-		public boolean isRunning() {
-			return this.poller != null ? this.poller.isRunning() : false;
-		}
-
-		@Override
-		public int getPhase() {
-			return Ordered.LOWEST_PRECEDENCE;
-		}
-
-		@Override
-		public boolean isAutoStartup() {
-			return true;
-		}
-
-		@Override
-		public void stop(Runnable callback) {
-			if (this.poller != null) {
-				this.poller.shutdown();
-			}
-			callback.run();
-		}
-
-	}*/
-
 	/**
 	 * {@link DisposableBean} that makes sure that Hystrix internal state is cleared when
 	 * {@link ApplicationContext} shuts down.