org.apache.kafka.clients.admin.DescribeLogDirsResult Maven / Gradle / Ivy
/*
* 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.clients.admin;
import org.apache.kafka.common.KafkaFuture;
import org.apache.kafka.common.annotation.InterfaceStability;
import java.util.HashMap;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.kafka.common.protocol.Errors;
import org.apache.kafka.common.requests.DescribeLogDirsResponse;
/**
* The result of the {@link Admin#describeLogDirs(Collection)} call.
*
* The API of this class is evolving, see {@link Admin} for details.
*/
@InterfaceStability.Evolving
public class DescribeLogDirsResult {
private final Map>> futures;
DescribeLogDirsResult(Map>> futures) {
this.futures = futures;
}
/**
* Return a map from brokerId to future which can be used to check the information of partitions on each individual broker.
* @deprecated Deprecated Since Kafka 2.7. Use {@link #descriptions()}.
*/
@Deprecated
@SuppressWarnings("deprecation")
public Map>> values() {
return descriptions().entrySet().stream()
.collect(Collectors.toMap(
Map.Entry::getKey,
entry -> entry.getValue().thenApply(map -> convertMapValues(map))));
}
@SuppressWarnings("deprecation")
private Map convertMapValues(Map map) {
Stream> stream = map.entrySet().stream();
return stream.collect(Collectors.toMap(
Map.Entry::getKey,
infoEntry -> {
LogDirDescription logDir = infoEntry.getValue();
return new DescribeLogDirsResponse.LogDirInfo(logDir.error() == null ? Errors.NONE : Errors.forException(logDir.error()),
logDir.replicaInfos().entrySet().stream().collect(Collectors.toMap(
Map.Entry::getKey,
replicaEntry -> new DescribeLogDirsResponse.ReplicaInfo(
replicaEntry.getValue().size(),
replicaEntry.getValue().offsetLag(),
replicaEntry.getValue().isFuture())
)));
}));
}
/**
* Return a map from brokerId to future which can be used to check the information of partitions on each individual broker.
* The result of the future is a map from broker log directory path to a description of that log directory.
*/
public Map>> descriptions() {
return futures;
}
/**
* Return a future which succeeds only if all the brokers have responded without error
* @deprecated Deprecated Since Kafka 2.7. Use {@link #allDescriptions()}.
*/
@Deprecated
@SuppressWarnings("deprecation")
public KafkaFuture>> all() {
return allDescriptions().thenApply(map -> map.entrySet().stream().collect(Collectors.toMap(
entry -> entry.getKey(),
entry -> convertMapValues(entry.getValue())
)));
}
/**
* Return a future which succeeds only if all the brokers have responded without error.
* The result of the future is a map from brokerId to a map from broker log directory path
* to a description of that log directory.
*/
public KafkaFuture>> allDescriptions() {
return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture[0])).
thenApply(v -> {
Map> descriptions = new HashMap<>(futures.size());
for (Map.Entry>> entry : futures.entrySet()) {
try {
descriptions.put(entry.getKey(), entry.getValue().get());
} catch (InterruptedException | ExecutionException e) {
// This should be unreachable, because allOf ensured that all the futures completed successfully.
throw new RuntimeException(e);
}
}
return descriptions;
});
}
}