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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.clients.admin;


import java.util.Map;
import java.util.Optional;
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;

/**
 * The result of {@link Admin#electLeaders(ElectionType, Set, ElectLeadersOptions)}
 *
 * The API of this class is evolving, see {@link Admin} for details.
 */
@InterfaceStability.Evolving
final public class ElectLeadersResult {
    private final KafkaFutureImpl>> electionFuture;

    ElectLeadersResult(KafkaFutureImpl>> electionFuture) {
        this.electionFuture = electionFuture;
    }

    /**
     * 

Get a future for the topic partitions for which a leader election was attempted. * If the election succeeded then the value for a topic partition will be the empty Optional. * Otherwise the election failed and the Optional will be set with the error.

*/ public KafkaFuture>> partitions() { return electionFuture; } /** * Return a future which succeeds if all the topic elections succeed. */ public KafkaFuture all() { final KafkaFutureImpl result = new KafkaFutureImpl<>(); partitions().whenComplete( new KafkaFuture.BiConsumer>, Throwable>() { @Override public void accept(Map> topicPartitions, Throwable throwable) { if (throwable != null) { result.completeExceptionally(throwable); } else { for (Optional exception : topicPartitions.values()) { if (exception.isPresent()) { result.completeExceptionally(exception.get()); return; } } result.complete(null); } } }); return result; } }




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