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Application.java
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Application.java
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package com.adarshr.lettuce.oom;
import io.lettuce.core.ClientOptions;
import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Primary;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettucePoolingClientConfiguration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import java.time.Duration;
@EnableScheduling
@SpringBootApplication
@EnableTransactionManagement
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
@Primary
RedisConnectionFactory redisStandaloneConnectionFactory(RedisProperties redisProperties) {
RedisStandaloneConfiguration config = new RedisStandaloneConfiguration(redisProperties.getHost(), redisProperties.getPort());
return new LettuceConnectionFactory(config, getLettuceClientConfiguration(redisProperties));
}
private static LettuceClientConfiguration getLettuceClientConfiguration(RedisProperties redisProperties) {
LettuceClientConfiguration.LettuceClientConfigurationBuilder lettuceClientConfigurationBuilder =
redisProperties.getLettuce().getPool() != null ?
LettucePoolingClientConfiguration.builder().poolConfig(getPoolConfig(redisProperties.getLettuce().getPool())) :
LettuceClientConfiguration.builder();
return lettuceClientConfigurationBuilder
.commandTimeout(Duration.ofSeconds(5))
.clientOptions(ClientOptions.builder()
.autoReconnect(true)
.requestQueueSize(10)
.cancelCommandsOnReconnectFailure(true)
.disconnectedBehavior(ClientOptions.DisconnectedBehavior.REJECT_COMMANDS)
.pingBeforeActivateConnection(true)
.suspendReconnectOnProtocolFailure(false)
.build())
.build();
}
private static GenericObjectPoolConfig getPoolConfig(RedisProperties.Pool pool) {
GenericObjectPoolConfig config = new GenericObjectPoolConfig();
config.setMaxTotal(pool.getMaxActive());
config.setMaxIdle(pool.getMaxIdle());
config.setMinIdle(pool.getMinIdle());
if (pool.getTimeBetweenEvictionRuns() != null) {
config.setTimeBetweenEvictionRunsMillis(pool.getTimeBetweenEvictionRuns().toMillis());
}
if (pool.getMaxWait() != null) {
config.setMaxWaitMillis(pool.getMaxWait().toMillis());
}
return config;
}
@Bean
StringRedisTemplate redisTemplate(RedisConnectionFactory connectionFactory) {
StringRedisTemplate stringRedisTemplate = new StringRedisTemplate(connectionFactory);
stringRedisTemplate.setEnableTransactionSupport(true);
return stringRedisTemplate;
}
}