/*
* 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.common.requests;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.Errors;
import org.apache.kafka.common.protocol.types.Struct;
import org.apache.kafka.common.utils.CollectionUtils;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
public class WriteTxnMarkersRequest extends AbstractRequest {
private static final String COORDINATOR_EPOCH_KEY_NAME = "coordinator_epoch";
private static final String TXN_MARKER_ENTRY_KEY_NAME = "transaction_markers";
private static final String PRODUCER_ID_KEY_NAME = "producer_id";
private static final String PRODUCER_EPOCH_KEY_NAME = "producer_epoch";
private static final String TRANSACTION_RESULT_KEY_NAME = "transaction_result";
private static final String TOPIC_PARTITIONS_KEY_NAME = "topics";
private static final String TOPIC_KEY_NAME = "topic";
private static final String PARTITIONS_KEY_NAME = "partitions";
public static class TxnMarkerEntry {
private final long producerId;
private final short producerEpoch;
private final int coordinatorEpoch;
private final TransactionResult result;
private final List<TopicPartition> partitions;
public TxnMarkerEntry(long producerId,
short producerEpoch,
int coordinatorEpoch,
TransactionResult result,
List<TopicPartition> partitions) {
this.producerId = producerId;
this.producerEpoch = producerEpoch;
this.coordinatorEpoch = coordinatorEpoch;
this.result = result;
this.partitions = partitions;
}
public long producerId() {
return producerId;
}
public short producerEpoch() {
return producerEpoch;
}
public int coordinatorEpoch() {
return coordinatorEpoch;
}
public TransactionResult transactionResult() {
return result;
}
public List<TopicPartition> partitions() {
return partitions;
}
@Override
public String toString() {
return "TxnMarkerEntry{" +
"producerId=" + producerId +
", producerEpoch=" + producerEpoch +
", coordinatorEpoch=" + coordinatorEpoch +
", result=" + result +
", partitions=" + partitions +
'}';
}
@Override
public boolean equals(final Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final TxnMarkerEntry that = (TxnMarkerEntry) o;
return producerId == that.producerId &&
producerEpoch == that.producerEpoch &&
coordinatorEpoch == that.coordinatorEpoch &&
result == that.result &&
Objects.equals(partitions, that.partitions);
}
@Override
public int hashCode() {
return Objects.hash(producerId, producerEpoch, coordinatorEpoch, result, partitions);
}
}
public static class Builder extends AbstractRequest.Builder<WriteTxnMarkersRequest> {
private final List<TxnMarkerEntry> markers;
public Builder(List<TxnMarkerEntry> markers) {
super(ApiKeys.WRITE_TXN_MARKERS);
this.markers = markers;
}
@Override
public WriteTxnMarkersRequest build(short version) {
return new WriteTxnMarkersRequest(version, markers);
}
}
private final List<TxnMarkerEntry> markers;
private WriteTxnMarkersRequest(short version, List<TxnMarkerEntry> markers) {
super(version);
this.markers = markers;
}
public WriteTxnMarkersRequest(Struct struct, short version) {
super(version);
List<TxnMarkerEntry> markers = new ArrayList<>();
Object[] markersArray = struct.getArray(TXN_MARKER_ENTRY_KEY_NAME);
for (Object markerObj : markersArray) {
Struct markerStruct = (Struct) markerObj;
long producerId = markerStruct.getLong(PRODUCER_ID_KEY_NAME);
short producerEpoch = markerStruct.getShort(PRODUCER_EPOCH_KEY_NAME);
int coordinatorEpoch = markerStruct.getInt(COORDINATOR_EPOCH_KEY_NAME);
TransactionResult result = TransactionResult.forId(markerStruct.getBoolean(TRANSACTION_RESULT_KEY_NAME));
List<TopicPartition> partitions = new ArrayList<>();
Object[] topicPartitionsArray = markerStruct.getArray(TOPIC_PARTITIONS_KEY_NAME);
for (Object topicPartitionObj : topicPartitionsArray) {
Struct topicPartitionStruct = (Struct) topicPartitionObj;
String topic = topicPartitionStruct.getString(TOPIC_KEY_NAME);
for (Object partitionObj : topicPartitionStruct.getArray(PARTITIONS_KEY_NAME)) {
partitions.add(new TopicPartition(topic, (Integer) partitionObj));
}
}
markers.add(new TxnMarkerEntry(producerId, producerEpoch, coordinatorEpoch, result, partitions));
}
this.markers = markers;
}
public List<TxnMarkerEntry> markers() {
return markers;
}
@Override
protected Struct toStruct() {
Struct struct = new Struct(ApiKeys.WRITE_TXN_MARKERS.requestSchema(version()));
Object[] markersArray = new Object[markers.size()];
int i = 0;
for (TxnMarkerEntry entry : markers) {
Struct markerStruct = struct.instance(TXN_MARKER_ENTRY_KEY_NAME);
markerStruct.set(PRODUCER_ID_KEY_NAME, entry.producerId);
markerStruct.set(PRODUCER_EPOCH_KEY_NAME, entry.producerEpoch);
markerStruct.set(COORDINATOR_EPOCH_KEY_NAME, entry.coordinatorEpoch);
markerStruct.set(TRANSACTION_RESULT_KEY_NAME, entry.result.id);
Map<String, List<Integer>> mappedPartitions = CollectionUtils.groupDataByTopic(entry.partitions);
Object[] partitionsArray = new Object[mappedPartitions.size()];
int j = 0;
for (Map.Entry<String, List<Integer>> topicAndPartitions : mappedPartitions.entrySet()) {
Struct topicPartitionsStruct = markerStruct.instance(TOPIC_PARTITIONS_KEY_NAME);
topicPartitionsStruct.set(TOPIC_KEY_NAME, topicAndPartitions.getKey());
topicPartitionsStruct.set(PARTITIONS_KEY_NAME, topicAndPartitions.getValue().toArray());
partitionsArray[j++] = topicPartitionsStruct;
}
markerStruct.set(TOPIC_PARTITIONS_KEY_NAME, partitionsArray);
markersArray[i++] = markerStruct;
}
struct.set(TXN_MARKER_ENTRY_KEY_NAME, markersArray);
return struct;
}
@Override
public WriteTxnMarkersResponse getErrorResponse(int throttleTimeMs, Throwable e) {
Errors error = Errors.forException(e);
Map<Long, Map<TopicPartition, Errors>> errors = new HashMap<>(markers.size());
for (TxnMarkerEntry entry : markers) {
Map<TopicPartition, Errors> errorsPerPartition = new HashMap<>(entry.partitions.size());
for (TopicPartition partition : entry.partitions)
errorsPerPartition.put(partition, error);
errors.put(entry.producerId, errorsPerPartition);
}
return new WriteTxnMarkersResponse(errors);
}
public static WriteTxnMarkersRequest parse(ByteBuffer buffer, short version) {
return new WriteTxnMarkersRequest(ApiKeys.WRITE_TXN_MARKERS.parseRequest(version, buffer), version);
}
@Override
public boolean equals(final Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final WriteTxnMarkersRequest that = (WriteTxnMarkersRequest) o;
return Objects.equals(markers, that.markers);
}
@Override
public int hashCode() {
return Objects.hash(markers);
}
}