ambari-server/src/main/java/org/apache/ambari/server/state/UpgradeState.java

/*
 * 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.server.state;

import java.util.EnumSet;

/**
 * Indicates the upgrade state
 */
public enum UpgradeState {
  /**
   * No upgrade is in progress.
   */
  NONE,
  /**
   * Upgrade is complete
   */
  COMPLETE,
  /**
   * Upgrade is in progress
   */
  IN_PROGRESS,
  /**
   * Upgrade has failed
   */
  FAILED,
  /**
   * Component reported unexpected/wrong version
   */
  VERSION_MISMATCH;

  /**
   * States when new/correct version has not been yet advertised
   */
  public static final EnumSet<UpgradeState> VERSION_NON_ADVERTISED_STATES = EnumSet.of(IN_PROGRESS, FAILED, VERSION_MISMATCH);
}