[source-MongoDB] Do not send estimate trace message if we don't have data (#37473)

Author: xiaohansong

airbyte-integrations/connectors/source-mongodb-v2/metadata.yaml

@@ -8,7 +8,7 @@ data:
   connectorSubtype: database
   connectorType: source
   definitionId: b2e713cd-cc36-4c0a-b5bd-b47cb8a0561e
-  dockerImageTag: 1.3.4
+  dockerImageTag: 1.3.5
   dockerRepository: airbyte/source-mongodb-v2
   documentationUrl: https://docs.airbyte.com/integrations/sources/mongodb-v2
   githubIssueLabel: source-mongodb-v2

airbyte-integrations/connectors/source-mongodb-v2/src/main/java/io/airbyte/integrations/source/mongodb/MongoUtil.java

@@ -186,7 +186,8 @@ public static Optional<CollectionStatistics> getCollectionStatistics(final Mongo
           final Document stats = cursor.next();
           @SuppressWarnings("unchecked")
           final Map<String, Object> storageStats = (Map<String, Object>) stats.get(MongoConstants.STORAGE_STATS_KEY);
-          if (storageStats != null && !storageStats.isEmpty()) {
+          if (storageStats != null && !storageStats.isEmpty() && storageStats.containsKey(MongoConstants.COLLECTION_STATISTICS_COUNT_KEY)
+              && storageStats.containsKey(MongoConstants.COLLECTION_STATISTICS_STORAGE_SIZE_KEY)) {
             return Optional.of(new CollectionStatistics((Number) storageStats.get(MongoConstants.COLLECTION_STATISTICS_COUNT_KEY),
                 (Number) storageStats.get(MongoConstants.COLLECTION_STATISTICS_STORAGE_SIZE_KEY)));
           } else {

docs/integrations/sources/mongodb-v2.md

@@ -221,6 +221,7 @@ For more information regarding configuration parameters, please see [MongoDb Doc
 
 | Version | Date       | Pull Request                                             | Subject                                                                                                   |
 |:--------|:-----------|:---------------------------------------------------------|:----------------------------------------------------------------------------------------------------------|
+| 1.3.5   | 2024-04-22 | [37348](https://github.com/airbytehq/airbyte/pull/37348) | Do not send estimate trace if we do not have data.                                                           |
 | 1.3.4   | 2024-04-16 | [37348](https://github.com/airbytehq/airbyte/pull/37348) | Populate null values in airbyte record messages.                                                          |
 | 1.3.3   | 2024-04-05 | [36872](https://github.com/airbytehq/airbyte/pull/36872) | Update to connector's metadat definition.                                                                 |
 | 1.3.2   | 2024-04-04 | [36845](https://github.com/airbytehq/airbyte/pull/36845) | Adopt Kotlin CDK.                                                                                         |