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javahttprequesttasktapestry

Executing HTTP Request from Tapestry code

I am wondering what is the best practice for executing a http request from Tapestry code.

Here's a more concrete case:

On successful submit from some form, I'd like to execute a few http get requests to some URLs. Of course, one way to do it is in that method (onSubmitFromSomeForm()), but I don't really want to do that.

I was wondering if the good approach would be to try and implement it like this: http://wiki.apache.org/tapestry/Tapestry5HowToRunTaskInThread

I'm running Tapestry 5.3.7.

Solution

  • I'd recommend a simple service that spawns a new thread using ParallelExecutor.

    public class CrawlerImpl implements Crawler {

    private final ParallelExecutor executor;

    public CrawlerImpl(final ParallelExecutor executor) {

        this.executor = executor;
    }

    @Override
    public void crawl(final String url) {

        Future<String> future = executor.invoke(new Invokable<String>() { ... });

    }
}