Apache Camel timeout synchronous route

问题

I was trwing to construct a synchronous route with timeout using Apache Camel, and I couldn't find anything in the framework with resolve it. So I decided to build a process with make it for me.

public class TimeOutProcessor implements Processor {

private String route;
private Integer timeout;

public TimeOutProcessor(String route, Integer timeout) {
    this.route = route;
    this.timeout = timeout;
}


@Override
public void process(Exchange exchange) throws Exception {
    ExecutorService executor = Executors.newSingleThreadExecutor();

    Future<Exchange> future = executor.submit(new Callable<Exchange>() {

        public Exchange call() {
            // Check for field rating

            ProducerTemplate producerTemplate = exchange.getFromEndpoint().getCamelContext().createProducerTemplate();
            return producerTemplate.send(route, exchange);
        }
    });
    try {
        exchange.getIn().setBody(future.get(
                timeout,
                TimeUnit.SECONDS));
    } catch (TimeoutException e) {
        throw new TimeoutException("a timeout problem occurred");
    }
    executor.shutdownNow();
}

And I call this process this way:

.process(new TimeOutProcessor("direct:myRoute",
                Integer.valueOf(this.getContext().resolvePropertyPlaceholders("{{timeout}}")))

I wanna know if my way is the recomended way to do it, if it is not, what is the best way for build a synchronous route with timeout?

回答1:

I want to thanks the people who answer me.

That is my final code:

public class TimeOutProcessor implements Processor {

private String route;
private Integer timeout;

public TimeOutProcessor(String route, Integer timeout) {
    this.route = route;
    this.timeout = timeout;
}


@Override
public void process(Exchange exchange) throws Exception {
    Future<Exchange> future = null;
    ProducerTemplate producerTemplate = exchange.getFromEndpoint().getCamelContext().createProducerTemplate();
    try {

        future = producerTemplate.asyncSend(route, exchange);
        exchange.getIn().setBody(future.get(
                timeout,
                TimeUnit.SECONDS));
        producerTemplate.stop();
        future.cancel(true);
    } catch (TimeoutException e) {
        producerTemplate.stop();
        future.cancel(true);
        throw new TimeoutException("a timeout problem occurred");
    }

}
}

来源：https://stackoverflow.com/questions/49308074/apache-camel-timeout-synchronous-route

标签

apache-camel

spring-camel