Update Stream Ack Manager unit test and code refactor (#4383)

* Update Stream Ack Manager unit test

Signed-off-by: Dinu John <86094133+dinujoh@users.noreply.github.com>

* Move CheckpointStatus to stream sub package and make it package protected

Signed-off-by: Dinu John <86094133+dinujoh@users.noreply.github.com>

---------

Signed-off-by: Dinu John <86094133+dinujoh@users.noreply.github.com>

data-prepper-plugins/mongodb/src/main/java/org/opensearch/dataprepper/plugins/mongo/export/ExportPartitionWorker.java

@@ -109,7 +109,7 @@ public void run() {
             int lastRecordNumberProcessed = 0;
             final List<String> records = new ArrayList<>();
             try (MongoCursor<Document> cursor = col.find(query).iterator()) {
-                while (cursor.hasNext()) {
+                while (cursor.hasNext() && !Thread.currentThread().isInterrupted()) {
                     if (shouldStop) {
                         partitionCheckpoint.checkpoint(lastRecordNumberProcessed);
                         LOG.warn("Loading data query {} was interrupted by a shutdown signal, giving up ownership of " +

data-prepper-plugins/mongodb/src/main/java/org/opensearch/dataprepper/plugins/mongo/model/CheckpointStatus.java → data-prepper-plugins/mongodb/src/main/java/org/opensearch/dataprepper/plugins/mongo/stream/CheckpointStatus.java

@@ -1,13 +1,13 @@
-package org.opensearch.dataprepper.plugins.mongo.model;
+package org.opensearch.dataprepper.plugins.mongo.stream;
 
-public class CheckpointStatus {
+class CheckpointStatus {
     private final String resumeToken;
     private final long recordCount;
     private boolean acknowledged;
     private final long createTimestamp;
     private Long acknowledgedTimestamp;
 
-    public CheckpointStatus(final String resumeToken, final long recordCount, final long createTimestamp) {
+    CheckpointStatus(final String resumeToken, final long recordCount, final long createTimestamp) {
         this.resumeToken = resumeToken;
         this.recordCount = recordCount;
         this.acknowledged = false;
@@ -40,6 +40,4 @@ public long getCreateTimestamp() {
     public long getAcknowledgedTimestamp() {
         return acknowledgedTimestamp;
     }
-
-
 }

data-prepper-plugins/mongodb/src/main/java/org/opensearch/dataprepper/plugins/mongo/stream/StreamAcknowledgementManager.java

@@ -4,7 +4,6 @@
 import org.opensearch.dataprepper.common.concurrent.BackgroundThreadFactory;
 import org.opensearch.dataprepper.model.acknowledgements.AcknowledgementSet;
 import org.opensearch.dataprepper.model.acknowledgements.AcknowledgementSetManager;
-import org.opensearch.dataprepper.plugins.mongo.model.CheckpointStatus;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

data-prepper-plugins/mongodb/src/test/java/org/opensearch/dataprepper/plugins/mongo/stream/StreamAcknowledgementManagerTest.java

@@ -8,7 +8,6 @@
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.opensearch.dataprepper.model.acknowledgements.AcknowledgementSet;
 import org.opensearch.dataprepper.model.acknowledgements.AcknowledgementSetManager;
-import org.opensearch.dataprepper.plugins.mongo.model.CheckpointStatus;
 
 import java.time.Duration;
 import java.util.List;
@@ -83,7 +82,7 @@ public void createAcknowledgementSet_enabled_ackSetWithAck() {
 
     @Test
     public void createAcknowledgementSet_enabled_multipleAckSetWithAck() {
-        when(timeout.getSeconds()).thenReturn(10_000L);
+        lenient().when(timeout.getSeconds()).thenReturn(10_000L);
         streamAckManager = new StreamAcknowledgementManager(acknowledgementSetManager, partitionCheckpoint, timeout, 0, 0);
         streamAckManager.init(stopWorkerConsumer);
         final String resumeToken1 = UUID.randomUUID().toString();
@@ -174,5 +173,5 @@ public void createAcknowledgementSet_enabled_ackSetWithNoAck() {
         await()
             .atMost(Duration.ofSeconds(10)).untilAsserted(() ->
                 verify(stopWorkerConsumer).accept(null));
-}
+    }
 }