Spring Boot application to poll delivery status after certain intervals
This is a sample polling application using Apache camel and spring boot that polls delivery status after certain interval.
- Create a spring boot application using https://start.spring.io/
- Add dependecy of Apache camel or we can add it in pom.xml too if it's a maven project
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.22.0</version>
</dependency>
- Create a camel router by extending RouteBuilder class.
- Here we need to provide a configue() function which specifies refresh interval, delay interval and the process that you want to execute in that router.
public void configure() throws Exception {
from("timer:pollDeliveryStatusRoute?period=" + properties.getRefreshInterval()).autoStartup(true)
.routeId(ROUTE_NAME).delay(properties.getRefreshStartUpDelay()).process(processor);
}
- Create a processor function or a processor class
@Override
public void process(Exchange exchange) throws Exception {
log.info("Polling started.......");
pollDeliveryService.poll(); //perform the service
log.info("Polling completed......");
}
-
To ensure the application keeps running until stopped (it it's an standalone application), add the following property in application.properties file
camel.springboot.main-run-controller = true -
Output of the application:
