How to get absolute path with Vert.x? - vert.x

Question

How can I get the absolute path of a file without hardcoding the path in a String?
So basically I'm asking for vert.x's version of PHP's $_SERVER['DOCUMENT_ROOT']. Does anybody know?
UPDATE
I have the following directory structure:
| app.coffee
| Views
-| foo.html
app.coffee:
vertx = require('vertx')
rm = new vertx.RouteMatcher()
rm.get '/', (req) ->
req.response.sendFile "Views/foo.html"
vertx.createHttpServer().requestHandler(rm).listen(8080)

Answer 1

It sounds like you are looking for the execution directory of the application. To get the execution directory you can just look up the system property 'user.dir' like so:
System.getProperty("user.dir")
So for instance when I serve static files in vertx for testing I use this:
val staticFilePath = container.config().getString("static_files", System.getProperty("user.dir"));
server.requestHandler(
{
request: HttpServerRequest => {
request.response().sendFile(staticFilePath + "/something.css")
}
}
If you are still not getting the desired result just print out the user.dir property to see where you are trying to serve files from.
References:
http://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html

Answer 2

Just type in a relative path, it will refer to the working directory you launched the vertx command into.
Look at this simple example:
$ ls
index.html verticle.scala
As you can see, I have a verticle and a static file in my (unspecified!) directory.
$ cat index.html
Hello!
$ cat verticle.scala
vertx.createHttpServer().requestHandler({ req: HttpServerRequest =>
req.response().sendFile("index.html") // <-- relative path!
}).listen(8080)
Now I just run it from here
$ vertx run verticle.scala
Compiling verticle.scala as Scala script
Starting verticle.scala
Succeeded in deploying verticle
And it just works, no need at all to specify constants like in PHP :)
$ curl localhost:8080
Hello!
Enjoy!

Answer 3

I bet you're trying to do
curl http://localhost:8080/foo.html
That can't work because your route matcher is configured to match / and respond with the contents of foo.html.
The right test case should be instead:
curl http://localhost:8080/
and the expected result should be
Hello!
Route matcher is not is the wrong tool for serving static files. If you intend to do that, refer to the web server module
UPDATE
Mate, this thing works for me in coffeescript too. What Vert.x version are you using?
$ vertx version
2.1 (built 2014-05-27 12:39:02)
$ cat app.coffee
vertx = require('vertx')
rm = new vertx.RouteMatcher()
rm.get '/', (req) ->
req.response.sendFile "Views/foo.html"
vertx.createHttpServer().requestHandler(rm).listen(8080)
$ vertx run app.coffee &
[1] 27731
$ Succeeded in deploying verticle
$ curl localhost:8080
ciao
$ cat Views/foo.html
ciao