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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.metadata.placement;

import org.apache.kafka.common.annotation.InterfaceStability;
import org.apache.kafka.common.errors.InvalidReplicationFactorException;


/**
 * The interface which a Kafka replica placement policy must implement.
 */
@InterfaceStability.Unstable
public interface ReplicaPlacer {
    /**
     * Create a new replica placement.
     *
     * @param placement     What we're trying to place.
     * @param cluster       A description of the cluster we're trying to place in.
     *
     * @return              A topic assignment.
     *
     * @throws InvalidReplicationFactorException    If too many replicas were requested.
     */
    TopicAssignment place(
        PlacementSpec placement,
        ClusterDescriber cluster
    ) throws InvalidReplicationFactorException;
}