It's a telnet server uses to access spring context beans via groovy-shell
Usage:
Add GroovyShellService bean to spring context. For security reasons service bound to loopback interface only.
<bean class="ru.ind.tgs.GroovyShellService" p:listenPort="3333"/>Run your spring project.
Use telnet to access embedded groovy shell:
$ telnet 127.0.0.1 3333 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. Groovy Shell (1.8.5, JVM: 1.7.0_51) Type 'help' or '\h' for help. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- groovy:000>
Access to spring context via variable "context".
groovy:000> context.isActive() ===> true
View spring bean names:
groovy:000> Arrays.toString(context.getBeanDefinitionNames()) ===> [org.springframework.context.annotation.internalConfigurationAnnotationProcessor, ... ...
Direct access to your spring beans: your_bean_name.method() or your_bean_name.field