2.13. Apache Camel Standalone 실행
독립 실행형 애플리케이션으로 camel을 실행하면 애플리케이션을 실행하고 JVM이 종료될 때까지 계속 실행할 수 있는 Main 클래스를 제공합니다. org.apache.camel.main Java 패키지 내에서 MainListener 클래스를 찾을 수 있습니다.
다음은 Main 클래스의 구성 요소입니다.
-
org.apache.camel.Main클래스의Camel-coreJAR -
org.apache.camel.spring.Main클래스의Camel-spring JAR
다음 예제에서는 Camel에서 Main 클래스를 생성하고 사용하는 방법을 보여줍니다.
public class MainExample {
private Main main;
public static void main(String[] args) throws Exception {
MainExample example = new MainExample();
example.boot();
}
public void boot() throws Exception {
// create a Main instance
main = new Main();
// bind MyBean into the registry
main.bind("foo", new MyBean());
// add routes
main.addRouteBuilder(new MyRouteBuilder());
// add event listener
main.addMainListener(new Events());
// set the properties from a file
main.setPropertyPlaceholderLocations("example.properties");
// run until you terminate the JVM
System.out.println("Starting Camel. Use ctrl + c to terminate the JVM.\n");
main.run();
}
private static class MyRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
from("timer:foo?delay={{millisecs}}")
.process(new Processor() {
public void process(Exchange exchange) throws Exception {
System.out.println("Invoked timer at " + new Date());
}
})
.bean("foo");
}
}
public static class MyBean {
public void callMe() {
System.out.println("MyBean.callMe method has been called");
}
}
public static class Events extends MainListenerSupport {
@Override
public void afterStart(MainSupport main) {
System.out.println("MainExample with Camel is now started!");
}
@Override
public void beforeStop(MainSupport main) {
System.out.println("MainExample with Camel is now being stopped!");
}
}
}