camel 启动钩子函数

camel 提供了 beforeApplicationStart 以及 afterApplicationStart 钩子函数，可以在camel启动前以及启动后做一些初始化等操作。

@Configuration
public class MyAppConfig {

    private Logger logger = LoggerFactory.getLogger(MyAppConfig.class);

    @Bean
    CamelContextConfiguration contextConfiguration() {
        return new CamelContextConfiguration() {

            @Override
            public void beforeApplicationStart(CamelContext camelContext) {
                logger.info("准备启动");
            }

            @Override
            public void afterApplicationStart(CamelContext camelContext) {
                logger.info("启动成功");
            }
        };
    }
}