我们如何使用Beans连接到多个Cassandra集群?我们如何配置Controller以使用特定集群进行操作?我们是否保持这些联系?
我有这个CassandraOperations代码:
@Configuration
@PropertySource(value = { "classpath:META-INF/cassandra.properties" })
@EnableCassandraRepositories(basePackages = { "com.rg" })
public class CassandraConfig {
@Autowired
private Environment environment;
private static final Logger LOGGER = LoggerFactory.getLogger(CassandraConfig.class);
@Bean
public CassandraClusterFactoryBean cluster() {
CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean();
cluster.setContactPoints(environment.getProperty("cassandra.contactpoints"));
cluster.setPort(Integer.parseInt(environment.getProperty("cassandra.port")));
return cluster;
}
@Bean
public CassandraMappingContext mappingContext() {
return new BasicCassandraMappingContext();
}
@Bean
public CassandraConverter converter() {
return new MappingCassandraConverter(mappingContext());
}
@Bean
public CassandraSessionFactoryBean session() throws Exception {
CassandraSessionFactoryBean session = new CassandraSessionFactoryBean();
session.setCluster(cluster().getObject());
session.setKeyspaceName(environment.getProperty("cassandra.keyspace"));
session.setConverter(converter());
session.setSchemaAction(SchemaAction.NONE);
return session;
}
@Bean
public CassandraOperations cassandraTemplate() throws Exception {
return new CassandraTemplate(session().getObject());
}
}
答案 0 :(得分:0)
目前,您唯一的选择是配置多个使用多个CassandraTemplate
的{{1}}个实例。 Cassandra Session
(和Session
)和Cluster
具有很强的1:1关系。
这将改变Spring Data Cassandra 2.0,因为我们将添加一个可插拔的CassandraTemplate
接口,以便您可以定义自己的路由。此外,我们还会添加与AbstractRoutingDataSource
类似的SessionFactory
。有关详细信息,请参阅https://jira.spring.io/browse/DATACASS-330,并将您的想法留在那里。