kafka AlterConsumerGroupOffsetsResult 源码
kafka AlterConsumerGroupOffsetsResult 代码
文件路径:/clients/src/main/java/org/apache/kafka/clients/admin/AlterConsumerGroupOffsetsResult.java
/*
* 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 java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.kafka.common.KafkaFuture;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.annotation.InterfaceStability;
import org.apache.kafka.common.internals.KafkaFutureImpl;
import org.apache.kafka.common.protocol.Errors;
/**
* The result of the {@link AdminClient#alterConsumerGroupOffsets(String, Map)} call.
*
* The API of this class is evolving, see {@link AdminClient} for details.
*/
@InterfaceStability.Evolving
public class AlterConsumerGroupOffsetsResult {
private final KafkaFuture<Map<TopicPartition, Errors>> future;
AlterConsumerGroupOffsetsResult(KafkaFuture<Map<TopicPartition, Errors>> future) {
this.future = future;
}
/**
* Return a future which can be used to check the result for a given partition.
*/
public KafkaFuture<Void> partitionResult(final TopicPartition partition) {
final KafkaFutureImpl<Void> result = new KafkaFutureImpl<>();
this.future.whenComplete((topicPartitions, throwable) -> {
if (throwable != null) {
result.completeExceptionally(throwable);
} else if (!topicPartitions.containsKey(partition)) {
result.completeExceptionally(new IllegalArgumentException(
"Alter offset for partition \"" + partition + "\" was not attempted"));
} else {
final Errors error = topicPartitions.get(partition);
if (error == Errors.NONE) {
result.complete(null);
} else {
result.completeExceptionally(error.exception());
}
}
});
return result;
}
/**
* Return a future which succeeds if all the alter offsets succeed.
*/
public KafkaFuture<Void> all() {
return this.future.thenApply(topicPartitionErrorsMap -> {
List<TopicPartition> partitionsFailed = topicPartitionErrorsMap.entrySet()
.stream()
.filter(e -> e.getValue() != Errors.NONE)
.map(Map.Entry::getKey)
.collect(Collectors.toList());
for (Errors error : topicPartitionErrorsMap.values()) {
if (error != Errors.NONE) {
throw error.exception(
"Failed altering consumer group offsets for the following partitions: " + partitionsFailed);
}
}
return null;
});
}
}
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