/*
* 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.Utils;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class StopReplicaRequest extends AbstractRequest {
private static final String CONTROLLER_ID_KEY_NAME = "controller_id";
private static final String CONTROLLER_EPOCH_KEY_NAME = "controller_epoch";
private static final String DELETE_PARTITIONS_KEY_NAME = "delete_partitions";
private static final String PARTITIONS_KEY_NAME = "partitions";
private static final String TOPIC_KEY_NAME = "topic";
private static final String PARTITION_KEY_NAME = "partition";
public static class Builder extends AbstractRequest.Builder<StopReplicaRequest> {
private final int controllerId;
private final int controllerEpoch;
private final boolean deletePartitions;
private final Set<TopicPartition> partitions;
public Builder(int controllerId, int controllerEpoch, boolean deletePartitions,
Set<TopicPartition> partitions) {
super(ApiKeys.STOP_REPLICA);
this.controllerId = controllerId;
this.controllerEpoch = controllerEpoch;
this.deletePartitions = deletePartitions;
this.partitions = partitions;
}
@Override
public StopReplicaRequest build(short version) {
return new StopReplicaRequest(controllerId, controllerEpoch,
deletePartitions, partitions, version);
}
@Override
public String toString() {
StringBuilder bld = new StringBuilder();
bld.append("(type=StopReplicaRequest").
append(", controllerId=").append(controllerId).
append(", controllerEpoch=").append(controllerEpoch).
append(", deletePartitions=").append(deletePartitions).
append(", partitions=").append(Utils.join(partitions, ",")).
append(")");
return bld.toString();
}
}
private final int controllerId;
private final int controllerEpoch;
private final boolean deletePartitions;
private final Set<TopicPartition> partitions;
private StopReplicaRequest(int controllerId, int controllerEpoch, boolean deletePartitions,
Set<TopicPartition> partitions, short version) {
super(version);
this.controllerId = controllerId;
this.controllerEpoch = controllerEpoch;
this.deletePartitions = deletePartitions;
this.partitions = partitions;
}
public StopReplicaRequest(Struct struct, short version) {
super(version);
partitions = new HashSet<>();
for (Object partitionDataObj : struct.getArray(PARTITIONS_KEY_NAME)) {
Struct partitionData = (Struct) partitionDataObj;
String topic = partitionData.getString(TOPIC_KEY_NAME);
int partition = partitionData.getInt(PARTITION_KEY_NAME);
partitions.add(new TopicPartition(topic, partition));
}
controllerId = struct.getInt(CONTROLLER_ID_KEY_NAME);
controllerEpoch = struct.getInt(CONTROLLER_EPOCH_KEY_NAME);
deletePartitions = struct.getBoolean(DELETE_PARTITIONS_KEY_NAME);
}
@Override
public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e) {
Map<TopicPartition, Errors> responses = new HashMap<>(partitions.size());
for (TopicPartition partition : partitions) {
responses.put(partition, Errors.forException(e));
}
short versionId = version();
switch (versionId) {
case 0:
return new StopReplicaResponse(Errors.NONE, responses);
default:
throw new IllegalArgumentException(String.format("Version %d is not valid. Valid versions for %s are 0 to %d",
versionId, this.getClass().getSimpleName(), ApiKeys.STOP_REPLICA.latestVersion()));
}
}
public int controllerId() {
return controllerId;
}
public int controllerEpoch() {
return controllerEpoch;
}
public boolean deletePartitions() {
return deletePartitions;
}
public Set<TopicPartition> partitions() {
return partitions;
}
public static StopReplicaRequest parse(ByteBuffer buffer, short version) {
return new StopReplicaRequest(ApiKeys.STOP_REPLICA.parseRequest(version, buffer), version);
}
@Override
protected Struct toStruct() {
Struct struct = new Struct(ApiKeys.STOP_REPLICA.requestSchema(version()));
struct.set(CONTROLLER_ID_KEY_NAME, controllerId);
struct.set(CONTROLLER_EPOCH_KEY_NAME, controllerEpoch);
struct.set(DELETE_PARTITIONS_KEY_NAME, deletePartitions);
List<Struct> partitionDatas = new ArrayList<>(partitions.size());
for (TopicPartition partition : partitions) {
Struct partitionData = struct.instance(PARTITIONS_KEY_NAME);
partitionData.set(TOPIC_KEY_NAME, partition.topic());
partitionData.set(PARTITION_KEY_NAME, partition.partition());
partitionDatas.add(partitionData);
}
struct.set(PARTITIONS_KEY_NAME, partitionDatas.toArray());
return struct;
}
}