SWARM: JAX-RS

JaxRsActivator.java

@ApplicationPath("/components")
public class JaxRsActivator extends Application {
   //all resources will be loaded automatically (see Main.java)
}

Main.java

public class Main {
    public static void main(String[] args) throws Exception {
         Swarm swarm = new Swarm();
         //....
         JAXRSArchive jaxrs = ShrinkWrap.create(JAXRSArchive.class, "time.war");
         /* ===> */jaxrs.addPackage(TimeResource.class.getPackage());
         jaxrs.addAllDependencies();
         jaxrs.staticContent();
         jaxrs.as(TopologyArchive.class).advertise();
         swarm.start().deploy(jaxrs);
    }
}

TimeResource.java

import org.jboss.vfs.VFS;
import org.jboss.vfs.VirtualFile;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;

//JAX-RS proxy to collect all webcomponents from /resources/components (path is equal to ApplicationPath in JaxRsActivator.java)
@Path("/")
public class TimeResource
{
    public static final String COMPONENTS_FOLDER_NAME = "components";

    @GET
    @Produces(MediaType.TEXT_PLAIN)
  //get combined webcomponents html
   // ```
   //    <link rel="import" href="/components/compA.html">
   //    <link rel="import" href="/components/compB.html">
   //  ``` 
   //  ... etc.
    public Response get() throws URISyntaxException, IOException
    {
        URL resource = this.getClass().getResource("/" + COMPONENTS_FOLDER_NAME);
        VirtualFile componentsFolder = VFS.getChild(resource);
        if (!componentsFolder.exists() || !componentsFolder.isDirectory())
        {
            return Response.ok("", MediaType.TEXT_PLAIN).build();
        }
        StringBuilder sb = new StringBuilder();
        for (VirtualFile vf : componentsFolder.getChildren())
        {
            sb.append("<link rel=\"import\" href=\"").append(COMPONENTS_FOLDER_NAME).append("/").append(vf.getName()).append("\">\n");
        }
        sb.append("<script>window.alert('!!!!!!!!!!!!')</script>");

        return Response.ok((Object) sb.toString(), MediaType.TEXT_PLAIN).build();
    }


    @GET
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/{name:.+}")
    //proxy for webcomponents resource (/components/compA.html)
    public Response get(@PathParam("name") String componentFileName) throws URISyntaxException, IOException
    {
        URL resource = this.getClass().getResource("/" + COMPONENTS_FOLDER_NAME);
        VirtualFile componentsFolder = VFS.getChild(resource);
        //todo security ../
        VirtualFile child = componentsFolder.getChild(componentFileName);

        if (!child.exists())
        {
            return Response.status(Response.Status.NOT_FOUND).build();
        }
        return Response.ok((Object) child.openStream(), MediaType.TEXT_PLAIN).build();
    }
}

TimeResource2.java

import org.jboss.vfs.VFS;
import org.jboss.vfs.VirtualFile;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;

//example: how to load text file
@Path("/")
public class TimeResource2
{
    public static final String COMPONENTS_FOLDER_NAME = "components";

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public Response get() throws URISyntaxException, IOException
    {
        Response.ResponseBuilder response = Response.ok((Object) this.getClass().getResource("/components.html"));
        response.header("Content-Disposition",
                "attachment; filename=\"components.html\"");
        return response.build();

        return Response.ok((Object) this.getClass().getResourceAsStream("/" + COMPONENTS_FOLDER_NAME + "/components.html")).build();
    }
}