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.cloudstack.ha;
  
  import com.cloud.api.response.SimulatorHAStateResponse;
  import com.google.common.collect.EvictingQueue;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Queue;
  
  public final class SimulatorHAState {
      private boolean healthy;
      private boolean activity;
      private boolean recover;
      private boolean fence;
      private Queue<SimulatorHAStateResponse> stateTransitions = EvictingQueue.create(100);
  
      public SimulatorHAState(boolean healthy, boolean activity, boolean recover, boolean fence) {
          this.healthy = healthy;
          this.activity = activity;
          this.recover = recover;
          this.fence = fence;
      }
  
      public boolean isHealthy() {
          return healthy;
      }
  
      public void setHealthy(boolean healthy) {
          this.healthy = healthy;
      }
  
      public boolean hasActivity() {
          return activity;
      }
  
      public void setActivity(boolean activity) {
          this.activity = activity;
      }
  
      public boolean canRecover() {
          return recover;
      }
  
      public void setRecover(boolean recover) {
          this.recover = recover;
      }
  
      public boolean canFenced() {
          return fence;
      }
  
      public void setFence(boolean fence) {
          this.fence = fence;
      }
  
      public boolean addStateTransition(final HAConfig.HAState newHaState, final HAConfig.HAState oldHaState, final HAConfig.Event event, final HAResourceCounter counter) {
          final SimulatorHAStateResponse stateResponse = new SimulatorHAStateResponse();
          stateResponse.setHaState(newHaState);
          stateResponse.setPreviousHaState(oldHaState);
          stateResponse.setHaEvent(event);
          if (counter != null) {
              stateResponse.setActivityCounter(counter.getActivityCheckCounter());
              stateResponse.setRecoveryCounter(counter.getRecoveryCounter());
          }
          stateResponse.setObjectName("hastatetransition");
          return stateTransitions.add(stateResponse);
      }
  
      public List<SimulatorHAStateResponse> listRecentStateTransitions() {
          return new ArrayList<>(stateTransitions);
      }
  }
  