| /* |
| * 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 org.apache.cassandra.config.Config.PaxosVariant; |
| import org.apache.cassandra.distributed.api.IInvokableInstance; |
| import org.apache.cassandra.distributed.api.IIsolatedExecutor; |
| import org.apache.cassandra.service.paxos.Paxos; |
| import org.apache.cassandra.simulator.Action; |
| import org.apache.cassandra.simulator.ActionList; |
| |
| import static org.apache.cassandra.simulator.Action.Modifiers.NONE; |
| import static org.apache.cassandra.simulator.Action.Modifiers.RELIABLE; |
| import static org.apache.cassandra.utils.LazyToString.lazy; |
| |
| class OnInstanceSetPaxosVariant extends Action |
| { |
| final IInvokableInstance instance; |
| final int on; |
| final PaxosVariant newVariant; |
| |
| OnInstanceSetPaxosVariant(ClusterActions actions, int on, PaxosVariant newVariant) |
| { |
| super(lazy(() -> "Set Paxos Variant to " + newVariant + " on node" + on), RELIABLE, NONE); |
| this.instance = actions.cluster.get(on); |
| this.on = on; |
| this.newVariant = newVariant; |
| } |
| |
| protected ActionList performSimple() |
| { |
| instance.unsafeRunOnThisThread(invokableSetVariant(newVariant)); |
| return ActionList.empty(); |
| } |
| |
| static IIsolatedExecutor.SerializableRunnable invokableSetVariant(PaxosVariant to) |
| { |
| return () -> Paxos.setPaxosVariant(to); |
| } |
| } |