Re: [Simpleweb-Support] Multiple File Roots

[Brian D. <wic...@gm...>]

Hmm.. this works... can it be better?

public class Server
{
    public Server(Host host) throws Exception
    {
        _host =3D host;

        MyLoaderEngine engine =3D new MyLoaderEngine();

        Iterator it =3D _host.roots();

        while (it.hasNext())
        {
            File root =3D (File) it.next();

            engine.addContext(new FileContext(root));
        }

        engine.load("directory",
"com.wickedfastsolutions.server.app.DirectoryListingService");
        engine.load("default",
"com.wickedfastsolutions.server.app.WickedfastService");

        engine.link("*", "default");

        ProtocolHandler handler =3D ProtocolHandlerFactory.getInstance(engi=
ne);

        handler =3D new ServerHandler(handler);

        Connection connection =3D ConnectionFactory.getConnection(handler);

        connection.connect(new ServerSocket(_host.getPort(), 50,
InetAddress.getByName(_host.getAddress())));

        System.err.println("Current Time is " + new Date());
        System.err.println("Server is running at " +
_host.getAddress() + " port " + _host.getPort());
    }

    public static void main(String[] args) throws Exception
    {
        Host host =3D new Host();

        host.addRoot(new File("test/templates"));
        host.addRoot(new File("test/templates2"));
        host.setAddress("127.0.0.1");
        host.setPort(2000);

        new Server(host);
    }

    public Host getHost()
    {
        return _host;
    }

    private Host _host;
}


=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

public class MyLoaderEngine implements LoaderManager, ResourceEngine
{
    public MyLoaderEngine()
    {
    }

    public void addContext(Context context)
    {
        try
        {
            _contexts.add(new LoaderEngine(context));
        }

        catch (IOException ex)
        {
            throw new RuntimeException(ex.getMessage());
        }
    }

   public void update(String name, Loader loader)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.update(name, loader);
        }
   }

   public void remove(String name)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.remove(name);
        }
   }

   public void load(String name, String className) throws LoadingException
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.load(name, className);
        }
   }

   public void load(String name, String className, Object data) throws
LoadingException
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.load(name, className, data);
        }
   }

   public void unload(String name)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.unload(name);
        }
   }

   public void link(String pattern, String name)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.link(pattern, name);
        }
   }

   public void link(String pattern, String name, int pos)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.link(pattern, name, pos);
        }
   }

   public void unlink(String pattern)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.unlink(pattern);
        }
   }

   public void unlink(Match match)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            LoaderEngine engine =3D (LoaderEngine) it.next();

            engine.unlink(match);
        }
   }

   public synchronized Resource resolve(String target)
   {
        Iterator it =3D _contexts.iterator();

        while (it.hasNext())
        {
            try
            {
                LoaderEngine engine =3D (LoaderEngine) it.next();

                String path =3D engine.context.getRequestPath(target);
                String name =3D engine.resolver.resolve(path);

                if (engine.registry.contains(name))
                {
                    Context context =3D engine.context;

                    File file =3D context.getLocator().getFile(target);

                    if (!file.isHidden() && file.canRead())
                    {
                        return engine.registry.retrieve(name);
                    }
                }
            }

            catch (LocateException ex)
            {
            }
        }

        return new NotFound(new FileContext(new File("/")));
   }

   private class NotFound extends BasicResource {
      public NotFound(Context context) {
         this.context =3D context;
      }
      public void process(Request req, Response resp) {
         handle(req, resp, new StatusReport(404));
      }
   }

    private ArrayList _contexts =3D new ArrayList();
}

Thanks!


On 11/28/05, Niall Gallagher <gal...@ya...> wrote:
> Hi Brian,
>
> No, you do not have to rewrite the LoaderEngine to do
> this. What you can do is extend it in much the same
> way as the MapperEngine does. If you wish to add
> multiple paths to the classpath used by the loader
> engine then you can delegate to the following
> constructor.
>
> LoaderEngine(Context context, URL[] codebase);
>
> Simply add additional URLs in the form
> file:///a/b/c/path, etc. If you would like the Context
> to find files from multiple roots, then you should
> consider using the Locator. The locator performs a
> search for files from multiple locations. I typically
> use this for loading configuration files. The
> simple.http.serve.FileLocator is good for this. For
> example you could use:
>
> Locator loc =3D context.getLocator();
>
> loc.getFile("/my/file.txt");
>
> The file is searched for within all roots specified to
> the FileLocator. To increase the number of roots you
> can do the following:
>
> new FileLocator(new File[]{new File("root1"), new
> File("root2")});
>
> Also you will have to extend the FileContext like
> follows:
>
> class MyFileContext extends FileContext {
>
>    private Locator loc;
>
>    public MyFileContext(File base, Locator loc) {
>        super(base);
>        this.loc =3D loc;
>    }
>
>    public Locator getLocator() {
>      return loc;
>    }
> }
>
> Hope this helps.
>
> Niall
>
>
> --- Brian Davis <wic...@gm...> wrote:
>
> > Hi
> >
> > I am using a FileContext with a LoaderEngine to set
> > the 'root' of the
> > web server.
> >
> >         FileContext context =3D new FileContext(new
> > File("webserverroot/"));
> >
> >         LoaderEngine engine =3D new
> > LoaderEngine(context);
> >
> >
> > This works just dandy.. but I would like to support
> > the concept of
> > multiple server roots...
> >
> > Do I have to rewrite the LoaderEngine to accomplish
> > this?
> >
> > LoaderEngine engine =3D new LoaderEngine();
> >
> > engine.addContext(new FileContext(new
> > File("root1"));
> > engine.addContext(new FileContext(new
> > File("root2"));
> >
> > Also.. would be nice if the resolver tried to
> > resolve in root1.. then
> > root2.. then fail..
> >
> > Any help would be much appreciated..
> >
> > Thanks!
> >
> > Brian
> >
> >
> >
> -------------------------------------------------------
> > This SF.net email is sponsored by: Splunk Inc. Do
> > you grep through log files
> > for problems?  Stop!  Download the new AJAX search
> > engine that makes
> > searching your log files as easy as surfing the
> > web.  DOWNLOAD SPLUNK!
> > http://ads.osdn.com/?ad_idv37&alloc_id=16865&op=3Dclick
> > _______________________________________________
> > Simpleweb-Support mailing list
> > Sim...@li...
> >
> https://lists.sourceforge.net/lists/listinfo/simpleweb-support
> >
>
>
> Niall Gallagher
>
>
>
>
> __________________________________
> Yahoo! Mail - PC Magazine Editors' Choice 2005
> http://mail.yahoo.com
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc. Do you grep through log fi=
les
> for problems?  Stop!  Download the new AJAX search engine that makes
> searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
> http://ads.osdn.com/?ad_id=3D7637&alloc_id=3D16865&op=3Dclick
> _______________________________________________
> Simpleweb-Support mailing list
> Sim...@li...
> https://lists.sourceforge.net/lists/listinfo/simpleweb-support
>