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.flink.streaming.connectors.redis;
  
  import org.apache.flink.streaming.connectors.redis.common.config.FlinkJedisSentinelConfig;
  import org.apache.flink.streaming.connectors.redis.common.container.RedisCommandsContainer;
  import org.apache.flink.streaming.connectors.redis.common.container.RedisCommandsContainerBuilder;
  import org.apache.flink.util.TestLogger;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import redis.clients.jedis.Jedis;
  import redis.clients.jedis.JedisSentinelPool;
  import redis.embedded.RedisCluster;
  import redis.embedded.util.JedisUtil;
  
  import java.io.IOException;
  import java.util.Set;
  
  import org.junit.After;
  import org.junit.Before;
  import org.junit.BeforeClass;
  import org.junit.AfterClass;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  public class RedisSentinelClusterTest extends TestLogger {
      private static final Logger LOG = LoggerFactory.getLogger(RedisSentinelClusterTest.class);
  
      private static RedisCluster cluster;
      private static final String REDIS_MASTER = "master";
      private static final String TEST_KEY = "testKey";
      private static final String TEST_VALUE = "testValue";
  
      private JedisSentinelPool jedisSentinelPool;
      private FlinkJedisSentinelConfig jedisSentinelConfig;
  
      @BeforeClass
      public static void setUpCluster(){
          cluster = RedisCluster.builder().ephemeralSentinels().quorumSize(1)
              .replicationGroup(REDIS_MASTER, 1)
              .build();
          cluster.start();
          LOG.info("Started redis cluster {}", cluster);
      }
  
      @Before
      public void setUp() {
          Set<String> hosts = JedisUtil.sentinelHosts(cluster);
          jedisSentinelConfig = new FlinkJedisSentinelConfig.Builder().setMasterName(REDIS_MASTER)
              .setSentinels(hosts).build();
          jedisSentinelPool = new JedisSentinelPool(jedisSentinelConfig.getMasterName(),
              jedisSentinelConfig.getSentinels());
      }
  
      @Test
      public void testRedisSentinelOperation() {
          RedisCommandsContainer redisContainer = RedisCommandsContainerBuilder.build(jedisSentinelConfig);
          Jedis jedis = null;
          try{
              jedis = jedisSentinelPool.getResource();
              redisContainer.set(TEST_KEY, TEST_VALUE);
              assertEquals(TEST_VALUE, jedis.get(TEST_KEY));
          }finally {
              if (jedis != null){
                  jedis.close();
              }
          }
      }
  
      @After
      public void tearDown() throws IOException {
          if (jedisSentinelPool != null) {
              jedisSentinelPool.close();
          }
      }
  
      @AfterClass
      public static void tearDownCluster() throws IOException {
          if (cluster != null) {
              cluster.stop();
              LOG.info("Stopped redis cluster");
          }
      }
  }
  