简单的Apache Camel SNMP陷阱

Question

我是Apache Camel的新手，正在尝试接收一个简单的SNMP陷阱。

我已经使用camel-core和org.apache.servicemix.bundles.snmp4j设置了Maven项目。

我无法找到任何SNMP示例，但是基于其他示例，我想到了这个Main类：

public class Main {

    public static Processor myProcessor = new Processor() {
        public void process(Exchange arg0) throws Exception {
            // save to database
        }
    };

    public static void main(String[] args) {

        CamelContext context = new DefaultCamelContext();
        context.addComponent("snmp", new SnmpComponent());

        RouteBuilder builder = new RouteBuilder() {
            public void configure() {
                from("snmp:127.0.0.1:162?protocol=udp&type=TRAP").process(myProcessor);
            }
        };

        try {
            context.addRoutes(builder);
            context.start();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}

但是，当我在Eclipse中作为Java应用程序运行它时，它会在运行半秒钟后退出。 我期望它继续运行并听127.0.0.1:162 ...

任何帮助是极大的赞赏

Answer 1

至少拾起一个陷阱并打印到System.out的一种方法是这样的：

public class SNMPTrap {

    private Main main;

    public static void main(String[] args) throws Exception {
        SNMPTrap snmpTrap = new SNMPTrap();
        snmpTrap.boot();
    }

    @SuppressWarnings("deprecation")
    public void boot() throws Exception {

        main = new Main();
        main.bind("snmp", new SnmpComponent());
        main.addRouteBuilder(new MyRouteBuilder());
        main.addMainListener(new Events());

        System.out.println("Starting SNMPTrap. Use ctrl + c to terminate the JVM.\n");
        main.run();
    }

    private static class MyRouteBuilder extends RouteBuilder {
        @Override
        public void configure() throws Exception {
            from("snmp:127.0.0.1:162?protocol=udp&type=TRAP").process(myProcessor)
                .bean("snmp");
        }
    }

    public static Processor myProcessor = new Processor() {
        public void process(Exchange trap) throws Exception {
            System.out.println(trap.getIn().getBody(String.class));

            // Save to DB or do other good stuff
        }
    };

    public static class Events extends MainListenerSupport {

        @Override
        public void afterStart(MainSupport main) {
            System.out.println("SNMPTrap is now started!");
        }

        @Override
        public void beforeStop(MainSupport main) {
            System.out.println("SNMPTrap is now being stopped!");
        }
    }
}

但是，我得到警告，现在不赞成使用Camel核心的Main。