common-db-params: &common_db_params
  driver-className: com.mysql.jdbc.Driver 
  dataSourceProperties.useSSL: false
  dataSourceProperties.cachePrepStmts: true
  dataSourceProperties.prepStmtCacheSize: 250

catalog:
  datasource:
    jdbcUrl: ${CATALOG_DATABASE_URL:jdbc:mysql://localhost:3306/catalog}
    poolName: catalogPool
    minimumIdle: 16
    maximumPoolSize: 16
    <<: *common_db_params

public class Parser {

    public static void main(String[] args) throws IOException {
        ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
        Entity entity = mapper.readValue(new File("src/main/resources/sample.yml"), Entity.class);
        System.out.println(entity.getValue());
    }

}