content: /*
   * Copyright 1999-2019 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.demo.spring.webflux.service;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.data.redis.core.ReactiveRedisTemplate;
  import org.springframework.stereotype.Service;
  import reactor.core.publisher.Mono;
  
  /**
   * <p>A sample service for interacting with Redis via reactive Redis client.</p>
   * <p>To play this service, you need a Redis instance running in local.</p>
   *
   * @author Eric Zhao
   */
  @Service
  public class BazService {
  
      @Autowired
      private ReactiveRedisTemplate<String, String> template;
  
      public Mono<String> getById(Long id) {
          if (id == null || id <= 0) {
              return Mono.error(new IllegalArgumentException("invalid id: " + id));
          }
          return template.opsForValue()
              .get(KEY_PREFIX + id)
              .switchIfEmpty(Mono.just("not_found"));
      }
  
      public Mono<Boolean> setValue(Long id, String value) {
          if (id == null || id <= 0 || value == null) {
              return Mono.error(new IllegalArgumentException("invalid parameters"));
          }
          return template.opsForValue()
              .set(KEY_PREFIX + id, value);
      }
  
      private static final String KEY_PREFIX = "sentinel-reactor-test:";
  }
  