RedisSentinelConfiguration using spring.redis.sentinel.nodes with spring boot - spring-data-redis

Question

Trying to configure spring boot application with spring-session and redis but having below issue. Not able to resolve it.
Constructor threw exception; nested exception is java.lang.IllegalStateException: BeanFactory has not been injected into #Configuration class
This code works fine for me
#Configuration
#EnableRedisHttpSession
public class HttpSessionConfig {
LettuceClientConfiguration clientConfig = LettuceClientConfiguration.builder()
.readFrom(SLAVE_PREFERRED)
.build();
RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration()
.master("mymaster")
.sentinel("192.168.56.50", 26379)
.sentinel("192.168.56.50", 26380)
.sentinel("192.168.56.50", 26381);
#Bean
public LettuceConnectionFactory connectionFactory() {
return new LettuceConnectionFactory(sentinelConfig, clientConfig);
}
}
but not this code using PropertySource.
Spring document says:-
**RedisSentinelConfiguration can also be defined with a PropertySource, which lets you set the following properties:
Configuration Properties
spring.redis.sentinel.master: name of the master node.
spring.redis.sentinel.nodes: Comma delimited list of host:port pairs.**
#Configuration
#EnableRedisHttpSession
#PropertySource(name="application", value="classpath:application.properties")
public class HttpSessionConfig {
#Resource
ConfigurableEnvironment environment;
#Bean
public PropertiesPropertySource propertySource() {
return (PropertiesPropertySource) environment.getPropertySources().get("defaultProperties");
}
LettuceClientConfiguration clientConfig = LettuceClientConfiguration.builder()
.readFrom(SLAVE_PREFERRED)
.build();
RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration(propertySource());
#Bean
public LettuceConnectionFactory connectionFactory() {
return new LettuceConnectionFactory(sentinelConfig, clientConfig);
}
}
application.properties
server.port=8090
spring.security.user.name=admin
spring.security.user.password=admin
spring.redis.sentinel.master=mymaster
spring.redis.sentinel.nodes=192.168.56.50:26379,192.168.56.50:26380,192.168.56.50:26381
spring.application.name=spring-session-demo

Answer 1

The format of sentinel nodes property is comma separated key:value pairs. So you can extract host and port by java split() function.
#Autowired
private Environment env;
#Bean
public LettuceConnectionFactory connectionFactory() {
RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration();
String master = env.getProperty("spring.redis.sentinel.master");
String nodes = env.getProperty("spring.redis.sentinel.nodes");
sentinelConfig.master(master);
for (String node : nodes.split(",")) {
String split[] = node.split(":");
sentinelConfig.sentinel(split[0], Integer.parseInt(split[1]));
}
...
}