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.common.container;
  
  import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
  import org.apache.flink.streaming.connectors.redis.common.config.FlinkJedisClusterConfig;
  import org.apache.flink.streaming.connectors.redis.common.config.FlinkJedisConfigBase;
  import org.apache.flink.streaming.connectors.redis.common.config.FlinkJedisPoolConfig;
  import org.apache.flink.streaming.connectors.redis.common.config.FlinkJedisSentinelConfig;
  import redis.clients.jedis.JedisCluster;
  import redis.clients.jedis.JedisPool;
  import redis.clients.jedis.JedisPoolConfig;
  import redis.clients.jedis.JedisSentinelPool;
  import redis.clients.jedis.Jedis;
  import redis.clients.jedis.Connection;
  
  import java.util.Objects;
  
  /**
   * The builder for {@link RedisCommandsContainer}.
   */
  public class RedisCommandsContainerBuilder {
      private static final String DEFAULT_CLIENT_NAME = "default_client";
  
      /**
       * Initialize the {@link RedisCommandsContainer} based on the instance type.
       * @param flinkJedisConfigBase configuration base
       * @return @throws IllegalArgumentException if jedisPoolConfig, jedisClusterConfig and jedisSentinelConfig are all null
       */
      public static RedisCommandsContainer build(FlinkJedisConfigBase flinkJedisConfigBase){
          if(flinkJedisConfigBase instanceof FlinkJedisPoolConfig){
              FlinkJedisPoolConfig flinkJedisPoolConfig = (FlinkJedisPoolConfig) flinkJedisConfigBase;
              return RedisCommandsContainerBuilder.build(flinkJedisPoolConfig);
          } else if (flinkJedisConfigBase instanceof FlinkJedisClusterConfig) {
              FlinkJedisClusterConfig flinkJedisClusterConfig = (FlinkJedisClusterConfig) flinkJedisConfigBase;
              return RedisCommandsContainerBuilder.build(flinkJedisClusterConfig);
          } else if (flinkJedisConfigBase instanceof FlinkJedisSentinelConfig) {
              FlinkJedisSentinelConfig flinkJedisSentinelConfig = (FlinkJedisSentinelConfig) flinkJedisConfigBase;
              return RedisCommandsContainerBuilder.build(flinkJedisSentinelConfig);
          } else {
              throw new IllegalArgumentException("Jedis configuration not found");
          }
      }
  
      /**
       * Builds container for single Redis environment.
       *
       * @param jedisPoolConfig configuration for JedisPool
       * @return container for single Redis environment
       * @throws NullPointerException if jedisPoolConfig is null
       */
      public static RedisCommandsContainer build(FlinkJedisPoolConfig jedisPoolConfig) {
          Objects.requireNonNull(jedisPoolConfig, "Redis pool config should not be Null");
  
          GenericObjectPoolConfig<Jedis> genericObjectPoolConfig = getGenericObjectPoolConfig(jedisPoolConfig);
  
          JedisPool jedisPool = new JedisPool(genericObjectPoolConfig, jedisPoolConfig.getHost(),
            jedisPoolConfig.getPort(),
            jedisPoolConfig.getConnectionTimeout(),
            jedisPoolConfig.getPassword(),
            jedisPoolConfig.getDatabase(),
            jedisPoolConfig.getUseSsl());
          return new RedisContainer(jedisPool);
      }
  
      /**
       * Builds container for Redis Cluster environment.
       *
       * @param jedisClusterConfig configuration for JedisCluster
       * @return container for Redis Cluster environment
       * @throws NullPointerException if jedisClusterConfig is null
       */
      public static RedisCommandsContainer build(FlinkJedisClusterConfig jedisClusterConfig) {
          Objects.requireNonNull(jedisClusterConfig, "Redis cluster config should not be Null");
  
          GenericObjectPoolConfig<Connection> genericObjectPoolConfig = getGenericObjectPoolConfig(jedisClusterConfig);
  
          JedisCluster jedisCluster = new JedisCluster(jedisClusterConfig.getNodes(),
            jedisClusterConfig.getConnectionTimeout(),
            jedisClusterConfig.getConnectionTimeout(),
            jedisClusterConfig.getMaxRedirections(),
            jedisClusterConfig.getPassword(),
            DEFAULT_CLIENT_NAME,
            genericObjectPoolConfig,
            jedisClusterConfig.getUseSsl());
          return new RedisClusterContainer(jedisCluster);
      }
  
      /**
       * Builds container for Redis Sentinel environment.
       *
       * @param jedisSentinelConfig configuration for JedisSentinel
       * @return container for Redis sentinel environment
       * @throws NullPointerException if jedisSentinelConfig is null
       */
      public static RedisCommandsContainer build(FlinkJedisSentinelConfig jedisSentinelConfig) {
          Objects.requireNonNull(jedisSentinelConfig, "Redis sentinel config should not be Null");
  
          GenericObjectPoolConfig<Jedis> genericObjectPoolConfig = getGenericObjectPoolConfig(jedisSentinelConfig);
  
          if (jedisSentinelConfig.getUseSsl()) {
              throw new RuntimeException("JedisSentinelPool does not support SSL connections yet.");
          }
  
          JedisSentinelPool jedisSentinelPool = new JedisSentinelPool(jedisSentinelConfig.getMasterName(),
            jedisSentinelConfig.getSentinels(), genericObjectPoolConfig,
            jedisSentinelConfig.getConnectionTimeout(), jedisSentinelConfig.getSoTimeout(),
            jedisSentinelConfig.getPassword(), jedisSentinelConfig.getDatabase());
          return new RedisContainer(jedisSentinelPool);
      }
  
      public static <T> GenericObjectPoolConfig<T> getGenericObjectPoolConfig(FlinkJedisConfigBase jedisConfig) {
          GenericObjectPoolConfig<T> genericObjectPoolConfig = jedisConfig.getTestWhileIdle() ? (GenericObjectPoolConfig<T>) new JedisPoolConfig() : new GenericObjectPoolConfig<T>();
          genericObjectPoolConfig.setMaxIdle(jedisConfig.getMaxIdle());
          genericObjectPoolConfig.setMaxTotal(jedisConfig.getMaxTotal());
          genericObjectPoolConfig.setMinIdle(jedisConfig.getMinIdle());
          genericObjectPoolConfig.setTestOnBorrow(jedisConfig.getTestOnBorrow());
          genericObjectPoolConfig.setTestOnReturn(jedisConfig.getTestOnReturn());
  
          return genericObjectPoolConfig;
      }
  }
  