content: /*
   * 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.kafka.streams.processor.internals;
  
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.header.Headers;
  import org.apache.kafka.common.header.internals.RecordHeader;
  import org.apache.kafka.common.header.internals.RecordHeaders;
  import org.apache.kafka.common.utils.Bytes;
  import org.apache.kafka.streams.StreamsConfig;
  import org.apache.kafka.streams.StreamsConfig.InternalConfig;
  import org.apache.kafka.streams.processor.TaskId;
  import org.apache.kafka.streams.processor.internals.Task.TaskType;
  import org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl;
  import org.apache.kafka.streams.query.Position;
  import org.apache.kafka.streams.state.internals.PositionSerde;
  import org.apache.kafka.streams.state.internals.ThreadCache;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.mockito.junit.jupiter.MockitoSettings;
  import org.mockito.quality.Strictness;
  
  import java.util.Collections;
  import java.util.HashSet;
  
  import static java.util.Arrays.asList;
  import static org.apache.kafka.streams.processor.internals.InternalProcessorContext.BYTEARRAY_VALUE_SERIALIZER;
  import static org.apache.kafka.streams.processor.internals.InternalProcessorContext.BYTES_KEY_SERIALIZER;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  @MockitoSettings(strictness = Strictness.STRICT_STUBS)
  public class WriteConsistencyVectorTest {
  
      @Mock
      private StreamsConfig streamsConfig;
      @Mock
      private ProcessorStateManager stateManager;
      @Mock
      private RecordCollector recordCollector;
      @Mock
      private StreamTask task;
      @Mock
      private TaskId taskId;
      @Mock
      private StreamsMetricsImpl streamsMetrics;
      @Mock
      private ThreadCache threadCache;
      private ProcessorContextImpl context;
  
      private static final String KEY = "key";
      private static final Bytes KEY_BYTES = Bytes.wrap(KEY.getBytes());
      private static final long VALUE = 42L;
      private static final byte[] VALUE_BYTES = String.valueOf(VALUE).getBytes();
      private static final long TIMESTAMP = 21L;
      private static final String REGISTERED_STORE_NAME = "registered-store";
      private static final TopicPartition CHANGELOG_PARTITION = new TopicPartition("store-changelog", 1);
      private static final String INPUT_TOPIC_NAME = "input-topic";
      private static final Integer INPUT_PARTITION = 0;
      private static final Long INPUT_OFFSET = 100L;
  
      @BeforeEach
      public void setup() {
          when(streamsConfig.originals()).thenReturn(Collections.singletonMap(InternalConfig.IQ_CONSISTENCY_OFFSET_VECTOR_ENABLED, true));
          when(streamsConfig.values()).thenReturn(Collections.emptyMap());
          when(streamsConfig.getString(StreamsConfig.APPLICATION_ID_CONFIG)).thenReturn("add-id");
  
          when(stateManager.taskType()).thenReturn(TaskType.ACTIVE);
          when(stateManager.registeredChangelogPartitionFor(REGISTERED_STORE_NAME)).thenReturn(CHANGELOG_PARTITION);
  
          context = new ProcessorContextImpl(
                  taskId,
                  streamsConfig,
                  stateManager,
                  streamsMetrics,
                  threadCache
          );
  
          context.transitionToActive(task, null, null);
  
          context.setCurrentNode(
                  new ProcessorNode<>(
                          "fake",
                          (org.apache.kafka.streams.processor.api.Processor<String, Long, Object, Object>) null,
                          new HashSet<>(
                                  asList(
                                          "LocalKeyValueStore",
                                          "LocalTimestampedKeyValueStore",
                                          "LocalWindowStore",
                                          "LocalTimestampedWindowStore",
                                          "LocalSessionStore"
                                  )
                          )
                  )
          );
      }
  
      @Test
      public void shouldSendConsistencyVectorToChangelogTopic() {
          final Position position = Position.emptyPosition();
          position.withComponent(INPUT_TOPIC_NAME, INPUT_PARTITION, INPUT_OFFSET);
          context.setRecordContext(new ProcessorRecordContext(-1, INPUT_OFFSET, INPUT_PARTITION, INPUT_TOPIC_NAME, new RecordHeaders()));
          final Headers headers = new RecordHeaders();
          headers.add(ChangelogRecordDeserializationHelper.CHANGELOG_VERSION_HEADER_RECORD_CONSISTENCY);
          headers.add(new RecordHeader(
                  ChangelogRecordDeserializationHelper.CHANGELOG_POSITION_HEADER_KEY,
                  PositionSerde.serialize(position).array()));
  
          context.transitionToActive(task, recordCollector, null);
  
          context.logChange(REGISTERED_STORE_NAME, KEY_BYTES, VALUE_BYTES, TIMESTAMP, position);
  
          verify(recordCollector).send(
                  CHANGELOG_PARTITION.topic(),
                  KEY_BYTES,
                  VALUE_BYTES,
                  headers,
                  CHANGELOG_PARTITION.partition(),
                  TIMESTAMP,
                  BYTES_KEY_SERIALIZER,
                  BYTEARRAY_VALUE_SERIALIZER,
                  null,
                  null);
      }
  }
  