Guillaume LaForge of Groovy fame (he keeps adding all the absurdly convenient methods to existing java classes when used from Groovy) pointed me towards Simple, a Java based http server.
The API for writing services for Simple makes the Servlet API look painful to use. I am not kidding.
Oh yeah, as a side benefit, Niall (Simple's creator) has benchmarks demonstrating that it slightly outperforms the Apache Web Server 1.3.X.
Giving it the ten minute test -- it passed. I had an embedded http server up and running fast. The class below implements a full embedded web server. All requests go to the org.skife.simple.HelloService.
package org.skife.simple;
import simple.http.ProtocolHandler;
import simple.http.connect.Connection;
import simple.http.connect.ConnectionFactory;
import simple.http.load.LoaderEngine;
import simple.http.serve.HandlerFactory;
import java.net.ServerSocket;
public class Main
{
public static void main(String[] args) throws Exception
{
LoaderEngine engine = new LoaderEngine();
engine.load("default", "org.skife.simple.HelloService");
engine.link("*", "default");
ProtocolHandler handler = HandlerFactory.getInstance(engine);
Connection connection = ConnectionFactory.getConnection(handler);
connection.connect(new ServerSocket(8282));
}
}
The hello service in turn simple creates a list of things in my src/java blosxom entries directory:
package org.skife.simple;
import simple.http.Request;
import simple.http.Response;
import simple.http.load.BasicService;
import simple.http.serve.Context;
import java.io.File;
import java.io.PrintStream;
public class HelloService extends BasicService
{
public static final File entry_dir =
new File("/secret/path/to/blosxom/entries");
public HelloService(Context context)
{
super(context);
}
public void process(Request req, Response resp) throws Exception
{
PrintStream out = resp.getPrintStream();
out.println("<html><body><ul>");
File[] entries = entry_dir.listFiles();
for (int i = 0; i < entries.length; i++)
{
out.println("<li>" + entries[i].getName() + "</li>");
}
out.println("</ul></body></html>");
out.close();
}
}
And voila. I likes what I have played with so far quite a bit. Cookies, templates (Velocity), etc are all bundled into the main distro. Mamba also exists as a standalone server built on Simple.