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/*
* 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.ArrayOf;
import org.apache.kafka.common.protocol.types.Field;
import org.apache.kafka.common.protocol.types.Schema;
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 static org.apache.kafka.common.protocol.CommonFields.PRODUCER_EPOCH;
import static org.apache.kafka.common.protocol.CommonFields.PRODUCER_ID;
import static org.apache.kafka.common.protocol.CommonFields.TOPIC_NAME;
import static org.apache.kafka.common.protocol.CommonFields.TRANSACTIONAL_ID;
import static org.apache.kafka.common.protocol.types.Type.INT32;
public class AddPartitionsToTxnRequest extends AbstractRequest {
private static final String TOPICS_KEY_NAME = "topics";
private static final String PARTITIONS_KEY_NAME = "partitions";
private static final Schema ADD_PARTITIONS_TO_TXN_REQUEST_V0 = new Schema(
TRANSACTIONAL_ID,
PRODUCER_ID,
PRODUCER_EPOCH,
new Field(TOPICS_KEY_NAME, new ArrayOf(new Schema(
TOPIC_NAME,
new Field(PARTITIONS_KEY_NAME, new ArrayOf(INT32)))),
"The partitions to add to the transaction."));
/**
* The version number is bumped to indicate that on quota violation brokers send out responses before throttling.
*/
private static final Schema ADD_PARTITIONS_TO_TXN_REQUEST_V1 = ADD_PARTITIONS_TO_TXN_REQUEST_V0;
public static Schema[] schemaVersions() {
return new Schema[]{ADD_PARTITIONS_TO_TXN_REQUEST_V0, ADD_PARTITIONS_TO_TXN_REQUEST_V1};
}
public static class Builder extends AbstractRequest.Builder {
private final String transactionalId;
private final long producerId;
private final short producerEpoch;
private final List partitions;
public Builder(String transactionalId, long producerId, short producerEpoch, List partitions) {
super(ApiKeys.ADD_PARTITIONS_TO_TXN);
this.transactionalId = transactionalId;
this.producerId = producerId;
this.producerEpoch = producerEpoch;
this.partitions = partitions;
}
@Override
public AddPartitionsToTxnRequest build(short version) {
return new AddPartitionsToTxnRequest(version, transactionalId, producerId, producerEpoch, partitions);
}
public List partitions() {
return partitions;
}
@Override
public String toString() {
StringBuilder bld = new StringBuilder();
bld.append("(type=AddPartitionsToTxnRequest").
append(", transactionalId=").append(transactionalId).
append(", producerId=").append(producerId).
append(", producerEpoch=").append(producerEpoch).
append(", partitions=").append(partitions).
append(")");
return bld.toString();
}
}
private final String transactionalId;
private final long producerId;
private final short producerEpoch;
private final List partitions;
private AddPartitionsToTxnRequest(short version, String transactionalId, long producerId, short producerEpoch,
List partitions) {
super(ApiKeys.ADD_PARTITIONS_TO_TXN, version);
this.transactionalId = transactionalId;
this.producerId = producerId;
this.producerEpoch = producerEpoch;
this.partitions = partitions;
}
public AddPartitionsToTxnRequest(Struct struct, short version) {
super(ApiKeys.ADD_PARTITIONS_TO_TXN, version);
this.transactionalId = struct.get(TRANSACTIONAL_ID);
this.producerId = struct.get(PRODUCER_ID);
this.producerEpoch = struct.get(PRODUCER_EPOCH);
List partitions = new ArrayList<>();
Object[] topicPartitionsArray = struct.getArray(TOPICS_KEY_NAME);
for (Object topicPartitionObj : topicPartitionsArray) {
Struct topicPartitionStruct = (Struct) topicPartitionObj;
String topic = topicPartitionStruct.get(TOPIC_NAME);
for (Object partitionObj : topicPartitionStruct.getArray(PARTITIONS_KEY_NAME)) {
partitions.add(new TopicPartition(topic, (Integer) partitionObj));
}
}
this.partitions = partitions;
}
public String transactionalId() {
return transactionalId;
}
public long producerId() {
return producerId;
}
public short producerEpoch() {
return producerEpoch;
}
public List partitions() {
return partitions;
}
@Override
protected Struct toStruct() {
Struct struct = new Struct(ApiKeys.ADD_PARTITIONS_TO_TXN.requestSchema(version()));
struct.set(TRANSACTIONAL_ID, transactionalId);
struct.set(PRODUCER_ID, producerId);
struct.set(PRODUCER_EPOCH, producerEpoch);
Map> mappedPartitions = CollectionUtils.groupPartitionsByTopic(partitions);
Object[] partitionsArray = new Object[mappedPartitions.size()];
int i = 0;
for (Map.Entry> topicAndPartitions : mappedPartitions.entrySet()) {
Struct topicPartitionsStruct = struct.instance(TOPICS_KEY_NAME);
topicPartitionsStruct.set(TOPIC_NAME, topicAndPartitions.getKey());
topicPartitionsStruct.set(PARTITIONS_KEY_NAME, topicAndPartitions.getValue().toArray());
partitionsArray[i++] = topicPartitionsStruct;
}
struct.set(TOPICS_KEY_NAME, partitionsArray);
return struct;
}
@Override
public AddPartitionsToTxnResponse getErrorResponse(int throttleTimeMs, Throwable e) {
final HashMap errors = new HashMap<>();
for (TopicPartition partition : partitions) {
errors.put(partition, Errors.forException(e));
}
return new AddPartitionsToTxnResponse(throttleTimeMs, errors);
}
public static AddPartitionsToTxnRequest parse(ByteBuffer buffer, short version) {
return new AddPartitionsToTxnRequest(ApiKeys.ADD_PARTITIONS_TO_TXN.parseRequest(version, buffer), version);
}
}
