Merge pull request #140 from Cinimex-Informatica/feature/issue139_incorrect_work

Fixed bug related to incorrect work with MQ 9.0.0.x

Author: echerniak

src/main/java/ru/cinimex/exporter/prometheus/metrics/MetricManagerUtils.java

@@ -2,14 +2,7 @@
 
 import io.prometheus.client.CollectorRegistry;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
+import java.util.*;
 import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.stream.Collectors;
@@ -79,7 +72,7 @@ public static Function<List<Double>, Double> getConversionFunction(String update
                 return MetricManagerUtils::division;
             case "mqobject_get_average_destructive_mqget_persistent_and_non_persistent_message_size_bytes":
                 return MetricManagerUtils::averageSum;
-            case "mqobject_get_queue_queue_fill_percentage":
+            case "mqobject_queue_queue_fill_percentage":
                 return MetricManagerUtils::divisionInPercentage;
             default:
                 return MetricManagerUtils::defaultConversion;
@@ -124,19 +117,22 @@ public static Map<List<String>, List<Double>> getMetricsUsedToUpdate(Set<String>
             if (!arrayListDoubleMap.isEmpty()) mapWithValues.put(metricFamilySamples.name, arrayListDoubleMap);
         });
 
-        List<Map<List<String>, Double>> listWithValues = metricsNamesUsedToUpdate.stream()
-                .map(mapWithValues::get)
-                .collect(Collectors.toList());
         Map<List<String>, List<Double>> params = new HashMap<>();
-        listWithValues.forEach(l -> l.forEach((k, v) -> {
-                    if (!params.containsKey(k)) params.put(k, new ArrayList<>(Collections.singletonList(v)));
-                    else {
-                        List<Double> paramList = params.get(k);
-                        paramList.add(v);
-                        params.replace(k, paramList);
+
+        if (mapWithValues.size() == metricsNamesUsedToUpdate.size()) {
+            List<Map<List<String>, Double>> listWithValues = metricsNamesUsedToUpdate.stream()
+                    .map(mapWithValues::get)
+                    .collect(Collectors.toList());
+            listWithValues.forEach(l -> l.forEach((k, v) -> {
+                        if (!params.containsKey(k)) params.put(k, new ArrayList<>(Collections.singletonList(v)));
+                        else {
+                            List<Double> paramList = params.get(k);
+                            paramList.add(v);
+                            params.replace(k, paramList);
+                        }
                     }
-                }
-        ));
+            ));
+        }
         return params;
     }
 

src/main/java/ru/cinimex/exporter/prometheus/metrics/MetricsManager.java

@@ -6,15 +6,10 @@
 import ru.cinimex.exporter.mq.pcf.PCFElement;
 import ru.cinimex.exporter.mq.pcf.PCFElementRow;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 
-import static ru.cinimex.exporter.prometheus.metrics.MetricsReference.getAdditionalMqObjectMetricsReference;
 import static ru.cinimex.exporter.prometheus.metrics.MetricManagerUtils.*;
+import static ru.cinimex.exporter.prometheus.metrics.MetricsReference.getAdditionalMqObjectMetricsReference;
 
 /**
  * Class is used to manage work of all metrics.
@@ -65,7 +60,7 @@ public static void initMetrics(List<PCFElement> elements, List<MQObject.MQType>
                     default:
                         logger.error(
                                 "Error during metrics initialization: Unknown metric type! Make sure it is one " + "of: {}",
-                                (Object[]) MetricsReference.Metric.Type.values());
+                                MetricsReference.Metric.Type.values());
                 }
             }
         }
@@ -115,9 +110,11 @@ public static void updateAdditionalMetrics(Set<String> parsedQuery) {
     private static void complexUpdateMetrics(
             Map<List<String>, List<Double>> metricsUsedToUpdate,
             String updatedMetricName) {
-        metricsUsedToUpdate.forEach((k, l) -> updateMetric(
-                updatedMetricName, getConversionFunction(updatedMetricName).apply(l), k.toArray(new String[0])));
-        logger.trace("Additional metrics {} was updated", updatedMetricName);
+        if (metricsUsedToUpdate != null) {
+            metricsUsedToUpdate.forEach((k, l) -> updateMetric(
+                    updatedMetricName, getConversionFunction(updatedMetricName).apply(l), k.toArray(new String[0])));
+            logger.trace("Additional metrics {} were updated", updatedMetricName);
+        }
     }
 
     /**