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.cassandra.distributed;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.function.Consumer;
  
  import org.apache.cassandra.distributed.api.IInstanceConfig;
  import org.apache.cassandra.distributed.api.IUpgradeableInstance;
  import org.apache.cassandra.distributed.api.TokenSupplier;
  import org.apache.cassandra.distributed.impl.AbstractCluster;
  import org.apache.cassandra.distributed.shared.NetworkTopology;
  import org.apache.cassandra.distributed.shared.Versions;
  
  /**
   * A multi-version cluster, offering only the cross-version API
   *
   * TODO: we could perhaps offer some convenience methods for nodes we know to be of the 'current' version,
   * to permit upgrade tests to perform cluster operations without updating the cross-version API,
   * so long as one node is up-to-date.
   */
  public class UpgradeableCluster extends AbstractCluster<IUpgradeableInstance> implements AutoCloseable
  {
      private UpgradeableCluster(Builder builder)
      {
          super(builder);
      }
  
      protected IUpgradeableInstance newInstanceWrapper(Versions.Version version, IInstanceConfig config)
      {
          config.set(Constants.KEY_DTEST_API_CONFIG_CHECK, false);
          return new Wrapper(version, config);
      }
  
      public static Builder build()
      {
          return new Builder();
      }
  
      public static Builder build(int nodeCount)
      {
          return build().withNodes(nodeCount);
      }
  
      public static UpgradeableCluster create(int nodeCount) throws Throwable
      {
          return build(nodeCount).start();
      }
      public static UpgradeableCluster create(int nodeCount, Versions.Version version, Consumer<IInstanceConfig> configUpdater) throws IOException
      {
          return create(nodeCount, version, configUpdater, null);
      }
  
      public static UpgradeableCluster create(int nodeCount, Versions.Version version, Consumer<IInstanceConfig> configUpdater, Consumer<Builder> builderUpdater) throws IOException
      {
          Builder builder = build(nodeCount).withConfig(configUpdater).withVersion(version);
          if (builderUpdater != null)
              builderUpdater.accept(builder);
          return builder.start();
      }
  
      public static UpgradeableCluster create(int nodeCount, Versions.Version version, Consumer<IInstanceConfig> configUpdater, Consumer<Builder> builderUpdater, TokenSupplier tokenSupplier, Map<Integer, NetworkTopology.DcAndRack> nodeIdTopology) throws IOException
      {
          Builder builder = build(nodeCount).withConfig(configUpdater).withVersion(version);
          if (tokenSupplier != null)
              builder = builder.withTokenSupplier(tokenSupplier);
          if (nodeIdTopology != null)
              builder = builder.withNodeIdTopology(nodeIdTopology);
          if (builderUpdater != null)
              builderUpdater.accept(builder);
          return builder.start();
      }
  
      public static UpgradeableCluster create(int nodeCount, Versions.Version version) throws Throwable
      {
          return build(nodeCount).withVersion(version).start();
      }
  
      public static final class Builder extends AbstractBuilder<IUpgradeableInstance, UpgradeableCluster, Builder>
      {
  
          public Builder()
          {
              super(UpgradeableCluster::new);
          }
      }
  }
  
  