rzepinskip commented on code in PR #11899:
URL: https://github.com/apache/nifi/pull/11899#discussion_r4549932074
##########
nifi-extension-bundles/nifi-kafka-bundle/nifi-kafka-processors/src/main/java/org/apache/nifi/kafka/processors/consumer/bundle/ByteRecordBundler.java:
##########
@@ -65,8 +65,11 @@ private ByteRecord toByteRecord(final BundleKey key, final
BundleValue value) {
final TopicPartitionSummary topicPartition = key.getTopicPartition();
key.headers.add(new
RecordHeader(KafkaFlowFileAttribute.KAFKA_MAX_OFFSET,
Long.toString(value.getLastOffset()).getBytes(StandardCharsets.UTF_8)));
key.headers.add(new RecordHeader(KafkaFlowFileAttribute.KAFKA_COUNT,
Long.toString(value.getCount()).getBytes(StandardCharsets.UTF_8)));
+ final byte[] data = value.getData();
+ // Demarcator emits one FlowFile per bundle, so an empty bundle is
still reported as a tombstone.
+ final boolean tombstone = data.length == 0;
Review Comment:
Rephrased
##########
nifi-extension-bundles/nifi-kafka-bundle/nifi-kafka-processors/src/test/java/org/apache/nifi/kafka/processors/consumer/convert/FlowFileStreamKafkaMessageConverterTest.java:
##########
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.kafka.processors.consumer.convert;
+
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.kafka.processors.ConsumeKafka;
+import org.apache.nifi.kafka.processors.consumer.OffsetTracker;
+import org.apache.nifi.kafka.service.api.record.ByteRecord;
+import org.apache.nifi.kafka.shared.attribute.KafkaFlowFileAttribute;
+import org.apache.nifi.kafka.shared.property.KeyEncoding;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.io.OutputStreamCallback;
+import org.apache.nifi.util.MockFlowFile;
+import org.junit.jupiter.api.Test;
+import org.mockito.Answers;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+import static org.mockito.Mockito.withSettings;
+
+class FlowFileStreamKafkaMessageConverterTest {
+
+ private static final String TOPIC = "topic";
+ private static final String BROKER_URI = "brokerUri";
+ private static final byte[] NON_EMPTY_VALUE =
"payload".getBytes(StandardCharsets.UTF_8);
+
+ @Test
+ void testTombstoneAttributeSetOnlyForTombstoneRecords() {
+ final ProcessSession session = mock(ProcessSession.class,
withSettings().defaultAnswer(Answers.RETURNS_DEEP_STUBS));
+ final FlowFile tombstoneFlowFile = new MockFlowFile(1);
+ final FlowFile emptyFlowFile = new MockFlowFile(2);
+ final FlowFile valueFlowFile = new MockFlowFile(3);
+ when(session.create()).thenReturn(tombstoneFlowFile, emptyFlowFile,
valueFlowFile);
+ when(session.putAttribute(any(FlowFile.class), any(),
any())).thenAnswer(invocation -> invocation.getArgument(0));
+ when(session.putAllAttributes(any(FlowFile.class),
any())).thenAnswer(invocation -> invocation.getArgument(0));
+ when(session.write(any(FlowFile.class),
any(OutputStreamCallback.class))).thenAnswer(invocation ->
invocation.getArgument(0));
Review Comment:
Fixed
##########
nifi-extension-bundles/nifi-kafka-bundle/nifi-kafka-3-integration/src/test/java/org/apache/nifi/kafka/processors/ConsumeKafkaTombstoneIT.java:
##########
@@ -107,4 +109,34 @@ void testProcessingStrategyFlowFileOneRecord() throws
InterruptedException, Exec
flowFile.assertAttributeNotExists("aaa");
flowFile.assertAttributeNotExists("ccc");
}
+
+ @Test
+ void testProcessingStrategyFlowFileEmptyRecord() throws
InterruptedException, ExecutionException {
+ final String topic = UUID.randomUUID().toString();
+ final String groupId = topic.substring(0, topic.indexOf("-"));
+
+ runner.setProperty(ConsumeKafka.GROUP_ID, groupId);
+ runner.setProperty(ConsumeKafka.TOPICS, topic);
+ runner.setProperty(ConsumeKafka.PROCESSING_STRATEGY,
ProcessingStrategy.FLOW_FILE.getValue());
+
+ runner.run(1, false, true);
+
+ produceBytes(topic, FIRST_PARTITION, "key-record", EMPTY_BYTES);
+ while
(runner.getFlowFilesForRelationship(ConsumeKafka.SUCCESS).isEmpty()) {
Review Comment:
Fixed
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