content: /*
   * 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.ambari.spi.upgrade;
  
  import org.apache.ambari.spi.ClusterInformation;
  
  /**
   * A provider may specify the orchestration options for parts of the upgrade.
   */
  public interface OrchestrationOptions {
  
    /**
     * Gets the count of components that may be run in parallel for groupings.
     * 
     * @param cluster
     *          the cluster information containing topology and configurations
     * @param service
     *          the name of the service containing the component
     * @param component
     *          the name of the component
     *          
     * @return the number of slaves that may be run in parallel.  Returning a
     *          value less than 1 results in non-parallel behavior
     */
    int getConcurrencyCount(ClusterInformation cluster, String service, String component);
    
  }
  