Examples with Records org.apache.kafka.common.record.Records used on opensource projects

Example 1 with Records

use of org.apache.kafka.common.record.Records in project kafka by apache.

the class FetchResponse method addPartitionData.

private static void addPartitionData(String dest, List<Send> sends, Struct partitionData) {
    Struct header = partitionData.getStruct(PARTITION_HEADER_KEY_NAME);
    Records records = partitionData.getRecords(RECORD_SET_KEY_NAME);
    // include the partition header and the size of the record set
    ByteBuffer buffer = ByteBuffer.allocate(header.sizeOf() + 4);
    header.writeTo(buffer);
    buffer.putInt(records.sizeInBytes());
    buffer.rewind();
    sends.add(new ByteBufferSend(dest, buffer));
    // finally the send for the record set itself
    sends.add(new RecordsSend(dest, records));
}

Example 2 with Records

use of org.apache.kafka.common.record.Records in project apache-kafka-on-k8s by banzaicloud.

the class FetchResponse method addPartitionData.

private static void addPartitionData(String dest, Queue<Send> sends, Struct partitionData) {
    Struct header = partitionData.getStruct(PARTITION_HEADER_KEY_NAME);
    Records records = partitionData.getRecords(RECORD_SET_KEY_NAME);
    // include the partition header and the size of the record set
    ByteBuffer buffer = ByteBuffer.allocate(header.sizeOf() + 4);
    header.writeTo(buffer);
    buffer.putInt(records.sizeInBytes());
    buffer.rewind();
    sends.add(new ByteBufferSend(dest, buffer));
    // finally the send for the record set itself
    sends.add(new RecordsSend(dest, records));
}

Example 3 with Records

use of org.apache.kafka.common.record.Records in project kafka by apache.

the class FetcherTest method testFetchResponseMetrics.

@Test
public void testFetchResponseMetrics() {
    buildFetcher();
    String topic1 = "foo";
    String topic2 = "bar";
    TopicPartition tp1 = new TopicPartition(topic1, 0);
    TopicPartition tp2 = new TopicPartition(topic2, 0);
    subscriptions.assignFromUser(mkSet(tp1, tp2));
    Map<String, Integer> partitionCounts = new HashMap<>();
    partitionCounts.put(topic1, 1);
    partitionCounts.put(topic2, 1);
    topicIds.put(topic1, Uuid.randomUuid());
    topicIds.put(topic2, Uuid.randomUuid());
    TopicIdPartition tidp1 = new TopicIdPartition(topicIds.get(topic1), tp1);
    TopicIdPartition tidp2 = new TopicIdPartition(topicIds.get(topic2), tp2);
    client.updateMetadata(RequestTestUtils.metadataUpdateWithIds(1, partitionCounts, tp -> validLeaderEpoch, topicIds));
    int expectedBytes = 0;
    LinkedHashMap<TopicIdPartition, FetchResponseData.PartitionData> fetchPartitionData = new LinkedHashMap<>();
    for (TopicIdPartition tp : mkSet(tidp1, tidp2)) {
        subscriptions.seek(tp.topicPartition(), 0);
        MemoryRecordsBuilder builder = MemoryRecords.builder(ByteBuffer.allocate(1024), CompressionType.NONE, TimestampType.CREATE_TIME, 0L);
        for (int v = 0; v < 3; v++) builder.appendWithOffset(v, RecordBatch.NO_TIMESTAMP, "key".getBytes(), ("value-" + v).getBytes());
        MemoryRecords records = builder.build();
        for (Record record : records.records()) expectedBytes += record.sizeInBytes();
        fetchPartitionData.put(tp, new FetchResponseData.PartitionData().setPartitionIndex(tp.topicPartition().partition()).setHighWatermark(15).setLogStartOffset(0).setRecords(records));
    }
    assertEquals(1, fetcher.sendFetches());
    client.prepareResponse(FetchResponse.of(Errors.NONE, 0, INVALID_SESSION_ID, fetchPartitionData));
    consumerClient.poll(time.timer(0));
    Map<TopicPartition, List<ConsumerRecord<byte[], byte[]>>> fetchedRecords = fetchedRecords();
    assertEquals(3, fetchedRecords.get(tp1).size());
    assertEquals(3, fetchedRecords.get(tp2).size());
    Map<MetricName, KafkaMetric> allMetrics = metrics.metrics();
    KafkaMetric fetchSizeAverage = allMetrics.get(metrics.metricInstance(metricsRegistry.fetchSizeAvg));
    KafkaMetric recordsCountAverage = allMetrics.get(metrics.metricInstance(metricsRegistry.recordsPerRequestAvg));
    assertEquals(expectedBytes, (Double) fetchSizeAverage.metricValue(), EPSILON);
    assertEquals(6, (Double) recordsCountAverage.metricValue(), EPSILON);
}

Example 4 with Records

use of org.apache.kafka.common.record.Records in project kafka by apache.

the class MockLog method read.

@Override
public LogFetchInfo read(long startOffset, Isolation isolation) {
    OptionalLong maxOffsetOpt = isolation == Isolation.COMMITTED ? OptionalLong.of(highWatermark.offset) : OptionalLong.empty();
    verifyOffsetInRange(startOffset);
    long maxOffset = maxOffsetOpt.orElse(endOffset().offset);
    if (startOffset >= maxOffset) {
        return new LogFetchInfo(MemoryRecords.EMPTY, new LogOffsetMetadata(startOffset, metadataForOffset(startOffset)));
    }
    ByteBuffer buffer = ByteBuffer.allocate(512);
    int batchCount = 0;
    LogOffsetMetadata batchStartOffset = null;
    for (LogBatch batch : batches) {
        // batch returned in a fetch response.
        if (batch.lastOffset() >= startOffset && batch.lastOffset() < maxOffset && !batch.entries.isEmpty()) {
            buffer = batch.writeTo(buffer);
            if (batchStartOffset == null) {
                batchStartOffset = batch.entries.get(0).logOffsetMetadata();
            }
            // Read on the mock log should return at most 2 batches. This is a simple solution
            // for testing interesting partial read scenarios.
            batchCount += 1;
            if (batchCount >= 2) {
                break;
            }
        }
    }
    buffer.flip();
    Records records = MemoryRecords.readableRecords(buffer);
    if (batchStartOffset == null) {
        throw new RuntimeException("Expected to find at least one entry starting from offset " + startOffset + " but found none");
    }
    return new LogFetchInfo(records, batchStartOffset);
}

Example 5 with Records

use of org.apache.kafka.common.record.Records in project kafka by apache.

the class MockLogTest method testReadRecords.

@Test
public void testReadRecords() {
    int epoch = 2;
    ByteBuffer recordOneBuffer = ByteBuffer.allocate(4);
    recordOneBuffer.putInt(1);
    SimpleRecord recordOne = new SimpleRecord(recordOneBuffer);
    ByteBuffer recordTwoBuffer = ByteBuffer.allocate(4);
    recordTwoBuffer.putInt(2);
    SimpleRecord recordTwo = new SimpleRecord(recordTwoBuffer);
    appendAsLeader(Arrays.asList(recordOne, recordTwo), epoch);
    Records records = log.read(0, Isolation.UNCOMMITTED).records;
    List<ByteBuffer> extractRecords = new ArrayList<>();
    for (Record record : records.records()) {
        extractRecords.add(record.value());
    }
    assertEquals(Arrays.asList(recordOne.value(), recordTwo.value()), extractRecords);
}