Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* 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.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.requests.DescribeLogDirsResponse.LogDirInfo;
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;
import static org.apache.kafka.common.protocol.CommonFields.TOPIC_NAME;
import static org.apache.kafka.common.protocol.types.Type.INT32;
public class DescribeLogDirsRequest extends AbstractRequest {
// request level key names
private static final String TOPICS_KEY_NAME = "topics";
// topic level key names
private static final String PARTITIONS_KEY_NAME = "partitions";
private static final Schema DESCRIBE_LOG_DIRS_REQUEST_V0 = new Schema(
new Field(TOPICS_KEY_NAME, ArrayOf.nullable(new Schema(
TOPIC_NAME,
new Field(PARTITIONS_KEY_NAME, new ArrayOf(INT32), "List of partition ids of the topic.")))));
/**
* The version number is bumped to indicate that on quota violation brokers send out responses before throttling.
*/
private static final Schema DESCRIBE_LOG_DIRS_REQUEST_V1 = DESCRIBE_LOG_DIRS_REQUEST_V0;
public static Schema[] schemaVersions() {
return new Schema[]{DESCRIBE_LOG_DIRS_REQUEST_V0, DESCRIBE_LOG_DIRS_REQUEST_V1};
}
private final Set topicPartitions;
public static class Builder extends AbstractRequest.Builder {
private final Set topicPartitions;
// topicPartitions == null indicates requesting all partitions, and an empty list indicates requesting no partitions.
public Builder(Set partitions) {
super(ApiKeys.DESCRIBE_LOG_DIRS);
this.topicPartitions = partitions;
}
@Override
public DescribeLogDirsRequest build(short version) {
return new DescribeLogDirsRequest(topicPartitions, version);
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("(type=DescribeLogDirsRequest")
.append(", topicPartitions=")
.append(topicPartitions)
.append(")");
return builder.toString();
}
}
public DescribeLogDirsRequest(Struct struct, short version) {
super(ApiKeys.DESCRIBE_LOG_DIRS, version);
if (struct.getArray(TOPICS_KEY_NAME) == null) {
topicPartitions = null;
} else {
topicPartitions = new HashSet<>();
for (Object topicStructObj : struct.getArray(TOPICS_KEY_NAME)) {
Struct topicStruct = (Struct) topicStructObj;
String topic = topicStruct.get(TOPIC_NAME);
for (Object partitionObj : topicStruct.getArray(PARTITIONS_KEY_NAME)) {
int partition = (Integer) partitionObj;
topicPartitions.add(new TopicPartition(topic, partition));
}
}
}
}
// topicPartitions == null indicates requesting all partitions, and an empty list indicates requesting no partitions.
public DescribeLogDirsRequest(Set topicPartitions, short version) {
super(ApiKeys.DESCRIBE_LOG_DIRS, version);
this.topicPartitions = topicPartitions;
}
@Override
protected Struct toStruct() {
Struct struct = new Struct(ApiKeys.DESCRIBE_LOG_DIRS.requestSchema(version()));
if (topicPartitions == null) {
struct.set(TOPICS_KEY_NAME, null);
return struct;
}
Map> partitionsByTopic = new HashMap<>();
for (TopicPartition tp : topicPartitions) {
if (!partitionsByTopic.containsKey(tp.topic())) {
partitionsByTopic.put(tp.topic(), new ArrayList());
}
partitionsByTopic.get(tp.topic()).add(tp.partition());
}
List topicStructArray = new ArrayList<>();
for (Map.Entry> partitionsByTopicEntry : partitionsByTopic.entrySet()) {
Struct topicStruct = struct.instance(TOPICS_KEY_NAME);
topicStruct.set(TOPIC_NAME, partitionsByTopicEntry.getKey());
topicStruct.set(PARTITIONS_KEY_NAME, partitionsByTopicEntry.getValue().toArray());
topicStructArray.add(topicStruct);
}
struct.set(TOPICS_KEY_NAME, topicStructArray.toArray());
return struct;
}
@Override
public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e) {
short versionId = version();
switch (versionId) {
case 0:
case 1:
return new DescribeLogDirsResponse(throttleTimeMs, new HashMap());
default:
throw new IllegalArgumentException(
String.format("Version %d is not valid. Valid versions for %s are 0 to %d", versionId,
this.getClass().getSimpleName(), ApiKeys.DESCRIBE_LOG_DIRS.latestVersion()));
}
}
public boolean isAllTopicPartitions() {
return topicPartitions == null;
}
public Set topicPartitions() {
return topicPartitions;
}
public static DescribeLogDirsRequest parse(ByteBuffer buffer, short version) {
return new DescribeLogDirsRequest(ApiKeys.DESCRIBE_LOG_DIRS.parseRequest(version, buffer), version);
}
}
