Refactoring for latencies tracking

monitoring/src/main/java/org/thingsboard/monitoring/data/Latencies.java

@@ -25,4 +25,8 @@ public class Latencies {
         return String.format("%sRequest", key);
     }
 
+    public static String wsUpdate(String key) {
+        return String.format("%sWsUpdate", key);
+    }
+
 }

monitoring/src/main/java/org/thingsboard/monitoring/data/Latency.java

@@ -15,53 +15,15 @@
  */
 package org.thingsboard.monitoring.data;
 
-import com.google.common.util.concurrent.AtomicDouble;
-import lombok.RequiredArgsConstructor;
+import lombok.Data;
 
-import java.util.concurrent.atomic.AtomicInteger;
-
-@RequiredArgsConstructor
+@Data(staticConstructor = "of")
 public class Latency {
-
     private final String key;
-    private final AtomicDouble latencySum = new AtomicDouble();
-    private final AtomicInteger counter = new AtomicInteger();
-
-    public synchronized void report(double latencyInMs) {
-        latencySum.addAndGet(latencyInMs);
-        counter.incrementAndGet();
-    }
-
-    public synchronized double getAvg() {
-        return latencySum.get() / counter.get();
-    }
-
-    public boolean isNotEmpty() {
-        return counter.get() > 0;
-    }
-
-    public synchronized void reset() {
-        latencySum.set(0.0);
-        counter.set(0);
-    }
-
-    public String getKey() {
-        return key;
-    }
-
-    public synchronized Latency snapshot() {
-        Latency snapshot = new Latency(key);
-        snapshot.latencySum.set(latencySum.get());
-        snapshot.counter.set(counter.get());
-        return snapshot;
-    }
+    private final double value;
 
-    @Override
-    public String toString() {
-        return "Latency{" +
-                "key='" + key + '\'' +
-                ", avgLatency=" + getAvg() +
-                '}';
+    public String getFormattedValue() {
+        return String.format("%,.2f ms", value);
     }
 
 }

monitoring/src/main/java/org/thingsboard/monitoring/data/notification/HighLatencyNotification.java

@@ -21,11 +21,11 @@ import java.util.Collection;
 
 public class HighLatencyNotification implements Notification {
 
-    private final Collection<Latency> latencies;
+    private final Collection<Latency> highLatencies;
     private final int thresholdMs;
 
-    public HighLatencyNotification(Collection<Latency> latencies, int thresholdMs) {
-        this.latencies = latencies;
+    public HighLatencyNotification(Collection<Latency> highLatencies, int thresholdMs) {
+        this.highLatencies = highLatencies;
         this.thresholdMs = thresholdMs;
     }
 
@@ -33,8 +33,8 @@ public class HighLatencyNotification implements Notification {
     public String getText() {
         StringBuilder text = new StringBuilder();
         text.append("Some of the latencies are higher than ").append(thresholdMs).append(" ms:\n");
-        latencies.forEach(latency -> {
-            text.append(String.format("[%s] %,.2f ms\n", latency.getKey(), latency.getAvg()));
+        highLatencies.forEach(latency -> {
+            text.append(String.format("[%s] %s\n", latency.getKey(), latency.getFormattedValue()));
         });
         return text.toString();
     }

monitoring/src/main/java/org/thingsboard/monitoring/service/BaseHealthChecker.java

@@ -96,7 +96,7 @@ public abstract class BaseHealthChecker<C extends MonitoringConfig, T extends Mo
         } else if (!update.toString().equals(testValue)) {
             throw new ServiceFailureException("Was expecting value " + testValue + " but got " + update);
         }
-        reporter.reportLatency(Latencies.WS_UPDATE, stopWatch.getTime());
+        reporter.reportLatency(Latencies.wsUpdate(getKey()), stopWatch.getTime());
     }
 
 

monitoring/src/main/java/org/thingsboard/monitoring/service/BaseMonitoringService.java

@@ -36,7 +36,7 @@ import java.util.UUID;
 @Slf4j
 public abstract class BaseMonitoringService<C extends MonitoringConfig<T>, T extends MonitoringTarget> {
 
-    @Autowired
+    @Autowired(required = false)
     private List<C> configs;
     private final List<BaseHealthChecker<C, T>> healthCheckers = new LinkedList<>();
     private final List<UUID> devices = new LinkedList<>();
@@ -54,6 +54,9 @@ public abstract class BaseMonitoringService<C extends MonitoringConfig<T>, T ext
 
     @PostConstruct
     private void init() {
+        if (configs == null || configs.isEmpty()) {
+            return;
+        }
         tbClient.logIn();
         configs.forEach(config -> {
             config.getTargets().forEach(target -> {

monitoring/src/main/java/org/thingsboard/monitoring/service/MonitoringReporter.java

@@ -63,25 +63,20 @@ public class MonitoringReporter {
     private String reportingAssetId;
 
     public void reportLatencies(TbClient tbClient) {
-        List<Latency> latencies = this.latencies.values().stream()
-                .filter(Latency::isNotEmpty)
-                .map(latency -> {
-                    Latency snapshot = latency.snapshot();
-                    latency.reset();
-                    return snapshot;
-                })
-                .collect(Collectors.toList());
         if (latencies.isEmpty()) {
             return;
         }
-        log.info("Latencies:\n{}", latencies.stream().map(latency -> latency.getKey() + ": " + latency.getAvg() + " ms")
+        log.debug("Latencies:\n{}", latencies.values().stream().map(latency -> latency.getKey() + ": " + latency.getFormattedValue())
                 .collect(Collectors.joining("\n")) + "\n");
-
         if (!latencyReportingEnabled) return;
 
-        if (latencies.stream().anyMatch(latency -> latency.getAvg() >= (double) latencyThresholdMs)) {
-            HighLatencyNotification highLatencyNotification = new HighLatencyNotification(latencies, latencyThresholdMs);
+        List<Latency> highLatencies = latencies.values().stream()
+                .filter(latency -> latency.getValue() >= (double) latencyThresholdMs)
+                .collect(Collectors.toList());
+        if (!highLatencies.isEmpty()) {
+            HighLatencyNotification highLatencyNotification = new HighLatencyNotification(highLatencies, latencyThresholdMs);
             notificationService.sendNotification(highLatencyNotification);
+            log.warn("{}", highLatencyNotification.getText());
         }
 
         try {
@@ -99,10 +94,11 @@ public class MonitoringReporter {
             }
 
             ObjectNode msg = JacksonUtil.newObjectNode();
-            latencies.forEach(latency -> {
-                msg.set(latency.getKey(), new DoubleNode(latency.getAvg()));
+            latencies.values().forEach(latency -> {
+                msg.set(latency.getKey(), new DoubleNode(latency.getValue()));
             });
             tbClient.saveEntityTelemetry(new AssetId(UUID.fromString(reportingAssetId)), "time", msg);
+            latencies.clear();
         } catch (Exception e) {
             log.error("Failed to report latencies: {}", e.getMessage());
         }
@@ -112,7 +108,7 @@ public class MonitoringReporter {
         String latencyKey = key + "Latency";
         double latencyInMs = (double) latencyInNanos / 1000_000;
         log.trace("Reporting latency [{}]: {} ms", key, latencyInMs);
-        latencies.computeIfAbsent(latencyKey, k -> new Latency(latencyKey)).report(latencyInMs);
+        latencies.put(latencyKey, Latency.of(latencyKey, latencyInMs));
     }
 
     public void serviceFailure(Object serviceKey, Throwable error) {