content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.csp.sentinel.dashboard.controller;
  
  import com.alibaba.csp.sentinel.dashboard.domain.Result;
  import com.alibaba.csp.sentinel.util.StringUtil;
  
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  /**
   * @author hisenyuan
   * @since 1.7.0
   */
  @RestController
  public class VersionController {
  
      private static final String VERSION_PATTERN = "-";
  
      @Value("${sentinel.dashboard.version:}")
      private String sentinelDashboardVersion;
  
      @GetMapping("/version")
      public Result<String> apiGetVersion() {
          if (StringUtil.isNotBlank(sentinelDashboardVersion)) {
              String res = sentinelDashboardVersion;
              if (sentinelDashboardVersion.contains(VERSION_PATTERN)) {
                  res = sentinelDashboardVersion.substring(0, sentinelDashboardVersion.indexOf(VERSION_PATTERN));
              }
              return Result.ofSuccess(res);
          } else {
              return Result.ofFail(1, "getVersion failed: empty version");
          }
      }
  }
  