Simple web server using java - Resource not found

[KumarM]

Couldn't get this to work and I was incorrectly spending time on stackoverflow. 

I'm trying to write a simple webserver that'd server a html file from the local file system using vertx in java. For some reason the below code doesn't find the file although I have my web/index.html in the resources folder. I'm using IntelliJ and it copies over this folder to the classes folder that it generates for the project. If I give the absolute path it works as expected. What am I doing wrong or how can I figure out whether 'web' folder is a part of the classpath? Btw, I have tested by running this from IntelliJ as well as from the terminal using "mvn exec:java -Dexec.mainClass="test.vertx.VertxDriver" but get the same result - Resource not found.

package test.vertx;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.vertx.java.core.*;

import org.vertx.java.core.http.HttpServer;

import org.vertx.java.core.http.HttpServerRequest;

import java.io.IOException;

public class VertxDriver {

    private static final Logger logger = LoggerFactory.getLogger(VertxDriver.class);

    public static void main(String[] args) {

        VertxDriver driver = new VertxDriver();

        Vertx vertx = VertxFactory.newVertx();

        HttpServer httpServer = vertx.createHttpServer();

        httpServer.requestHandler(driver.new FileRequestHandler(vertx));

        httpServer.listen(9999,"localhost");

        try {

            System.in.read();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

    class FileRequestHandler implements Handler<HttpServerRequest> {

        private Vertx vertx;

        FileRequestHandler(Vertx vertx) {this.vertx = vertx;}

        @Override

        public void handle(HttpServerRequest httpServerRequest) {

            String file = "";

            if(httpServerRequest.path().equals("/")) {

                file = "index.html";

            }

            logger.info("File being served is: "+file);

            httpServerRequest.response().sendFile("web/"+file);

        }

    }

}

[Tim Fox]

Why not display what the program thinks is it's current directory?

System.out.println(new File(".").getCanonicalPath());

One observation - any particular reason why you're embedding Vert.x rather than running as a Verticle?

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[KumarM]

Thanks Tim. That helped - would be awesome if there's a way on the APIs to pass in a file or stream object - because this is in the resources folder but sounds like vertx isn't reading it from there (even though it's on the classpath). Or may be I'm wrong and there's a way - I'm just getting started. 

I didn't want to run 'vertx' from the command prompt and I wanted to be in control of how to kickstart the program, hence I took this approach of embedding it. To me, embedding is the best way to integrate vertx into bigger projects that I'm working on. I'm learning and I might be more comfortable as I spend more time with this. But overall from what I read - it's awesome. Thanks for this great work. 

[Tim Fox]

On 20/01/14 22:24, KumarM wrote:

Thanks Tim. That helped - would be awesome if there's a way on the APIs to pass in a file or stream object - because this is in the resources folder but sounds like vertx isn't reading it from there (even though it's on the classpath). Or may be I'm wrong and there's a way - I'm just getting started.

Did you try what I suggested? What was the result?

I didn't want to run 'vertx' from the command prompt and I wanted to be in control of how to kickstart the program, hence I took this approach of embedding it. To me, embedding is the best way to integrate vertx into bigger projects that I'm working on. I'm learning and I might be more comfortable as I spend more time with this. But overall from what I read - it's awesome. Thanks for this great work.

No problem.

But I usually caution against embedding - it's really only intended for power users, and there are extra gotchas that you won't get with the platform, and you'll lose all the platform features.