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.simulator.cluster;
  
  import java.util.function.Consumer;
  
  import org.apache.cassandra.distributed.api.IInvokableInstance;
  import org.apache.cassandra.simulator.Action;
  import org.apache.cassandra.simulator.cluster.ClusterActionListener.TopologyChangeValidator;
  import org.apache.cassandra.simulator.systems.NonInterceptible;
  
  import static org.apache.cassandra.simulator.Action.Modifiers.RELIABLE_NO_TIMEOUTS;
  import static org.apache.cassandra.simulator.Action.Modifiers.STRICT;
  import static org.apache.cassandra.simulator.ActionListener.runAfterTransitiveClosure;
  import static org.apache.cassandra.simulator.systems.NonInterceptible.Permit.REQUIRED;
  
  abstract class OnClusterChangeTopology extends Action implements Consumer<Action>
  {
      final KeyspaceActions actions;
  
      final int[] participatingKeys;
      final Topology before;
      final Topology after;
  
  
      final TopologyChangeValidator validator;
  
      public OnClusterChangeTopology(Object description, KeyspaceActions actions, Topology before, Topology after, int[] participatingKeys)
      {
          this(description, actions, STRICT, RELIABLE_NO_TIMEOUTS, before, after, participatingKeys);
      }
  
      public OnClusterChangeTopology(Object description, KeyspaceActions actions, Modifiers self, Modifiers children, Topology before, Topology after, int[] participatingKeys)
      {
          super(description, self, children);
          this.actions = actions;
          this.participatingKeys = participatingKeys;
          this.before = before;
          this.after = after;
          this.validator = actions.listener.newTopologyChangeValidator(this);
          register(runAfterTransitiveClosure(this));
      }
  
      void before(IInvokableInstance instance)
      {
          NonInterceptible.execute(REQUIRED, () -> {
              actions.validateReplicasForKeys(instance, actions.keyspace, actions.table, before);
              validator.before(before, participatingKeys);
          });
      }
  
      public void accept(Action ignore)
      {
          validator.after(after);
      }
  
  }
  