code: /*
   * 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.skywalking.oap.server.core;
  
  import com.google.common.base.Strings;
  
  /**
   * The running mode of the OAP server.
   */
  public class RunningMode {
      private static String MODE = "";
  
      private RunningMode() {
      }
  
      public static void setMode(String mode) {
          if (Strings.isNullOrEmpty(mode)) {
              return;
          }
          RunningMode.MODE = mode.toLowerCase();
      }
  
      /**
       * Init mode, do all initialization things, and process should exit.
       *
       * @return true if in this status
       */
      public static boolean isInitMode() {
          return "init".equals(MODE);
      }
  
      /**
       * No-init mode, the oap just starts up, but wouldn't do storage init.
       *
       * @return true if in this status.
       */
      public static boolean isNoInitMode() {
          return "no-init".equals(MODE);
      }
  }
  