//========================================================================
// Copyright 2006 Mort Bay Consulting Pty. Ltd.
// expecting other bits copyrighted sun
//------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//========================================================================
package org.mortbay.jetty;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.channels.ByteChannel;
import java.nio.channels.ClosedChannelException;
import java.util.Random;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.mortbay.io.Buffer;
import org.mortbay.io.EndPoint;
import org.mortbay.io.nio.ChannelEndPoint;
import org.mortbay.io.nio.IndirectNIOBuffer;
import org.mortbay.io.nio.NIOBuffer;
import org.mortbay.jetty.nio.AbstractNIOConnector;
import org.mortbay.jetty.servlet.Context;
import org.mortbay.jetty.servlet.ServletHolder;
import org.mortbay.log.Log;
import org.mortbay.util.ajax.Continuation;
/* ------------------------------------------------------------------------------- */
/**
* @author gregw
*
*/
public class RandomConnector extends AbstractNIOConnector
{
static Random random = new Random(System.currentTimeMillis());
static int rate = 1;
/* ------------------------------------------------------------------------------- */
/**
* Constructor.
*
*/
public RandomConnector()
{
}
/* ------------------------------------------------------------ */
public Object getConnection()
{
// TODO return private connection eg server socket
return null;
}
/* ------------------------------------------------------------ */
/*
* @see org.mortbay.jetty.AbstractConnector#doStart()
*/
protected void doStart() throws Exception
{
super.doStart();
}
/* ------------------------------------------------------------ */
/*
* @see org.mortbay.jetty.AbstractConnector#doStop()
*/
protected void doStop() throws Exception
{
super.doStop();
}
/* ------------------------------------------------------------ */
public void open() throws IOException
{
// TODO Open server socket
}
/* ------------------------------------------------------------ */
public void close() throws IOException
{
// TODO Close server socket
}
/* ------------------------------------------------------------ */
public void accept(int acceptorID) throws IOException
{
// TODO accept a connection for real or progress an existing one
// but for now.... let's just pretend.
// This creates a connection and runs it to completion.
// in reality there will be lots of endpoints in play and any one
// of them may need to be dispatched.
try
{
File file = new File("fakeRequests.txt");
if (!file.exists())
file = new File("modules/jetty/src/test/resources/fakeRequests.txt");
if (!file.exists())
file = new File("src/test/resources/fakeRequests.txt");
if (!file.exists())
file = new File("/tmp/fakeRequests.txt");
if (!file.exists())
{
System.err.println("No such file "+file);
System.exit(1);
}
Thread.sleep(random.nextInt(50*rate));
ByteChannel channel = new FileInputStream(file).getChannel();
RandomEndPoint gep = new RandomEndPoint(this,channel);
try
{
// TODO in reality this dispatches would be mixed with others from other connections.
while (gep.isOpen())
{
Thread.sleep(random.nextInt(10*rate));
synchronized(gep)
{
if (!gep.dispatched)
{
gep.dispatched=true;
getThreadPool().dispatch(gep);
}
}
}
}
finally
{
connectionClosed(gep._connection);
}
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/* ------------------------------------------------------------------------------- */
public void customize(EndPoint endpoint, Request request) throws IOException
{
super.customize(endpoint, request);
}
/* ------------------------------------------------------------------------------- */
public int getLocalPort()
{
// TODO return the actual port we are listening on
return 0;
}
/* ------------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------------- */
public static class RandomEndPoint extends ChannelEndPoint implements EndPoint, Runnable
{
HttpConnection _connection;
boolean dispatched=false;
public RandomEndPoint(RandomConnector connector, ByteChannel channel)
{
super(channel);
_connection = new HttpConnection(connector,this,connector.getServer());
connector.connectionOpened(_connection);
}
public void run()
{
System.err.print("|");
try
{
_connection.handle();
}
catch (ClosedChannelException e)
{
Log.ignore(e);
}
catch (EofException e)
{
Log.debug("EOF", e);
try{close();}
catch(IOException e2){Log.ignore(e2);}
}
catch (HttpException e)
{
Log.debug("BAD", e);
try{close();}
catch(IOException e2){Log.ignore(e2);}
}
catch (Throwable e)
{
Log.warn("handle failed", e);
try{close();}
catch(IOException e2){Log.ignore(e2);}
}
finally
{
Continuation continuation = _connection.getRequest().getContinuation();
if (continuation != null && continuation.isPending())
{
// We have a continuation
// TODO something!
}
else
{
synchronized (RandomEndPoint.this)
{
dispatched=false;
}
// something else... normally re-enable this connection is the selectset with the latest interested ops
}
}
}
public boolean blockReadable(long millisecs)
{
try {Thread.sleep(random.nextInt(10*rate));} catch (InterruptedException e) {e.printStackTrace();}
return true;
}
public boolean blockWritable(long millisecs)
{
try {Thread.sleep(random.nextInt(10*rate));} catch (InterruptedException e) {e.printStackTrace();}
return true;
}
public int fill(Buffer buffer) throws IOException
{
// sometimes read nothing
if (random.nextInt()%10 <2 )
{
// System.err.println("fill: 0");
return 0;
}
// Get a random amount of data
int len=random.nextInt(20*rate);
if (len>buffer.space())
len=buffer.space();
// Load a length limited slice via a temp buffer
NIOBuffer temp= new IndirectNIOBuffer(len);
int len2=super.fill(temp);
if (len2<0)
{
// System.err.println("fill: EOF");
return -1;
}
if (len!=len2)
throw new IllegalStateException();
temp.mark();
buffer.put(temp);
temp.reset();
System.err.print(temp);
buffer.skip(len);
return len;
}
public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
{
int len=0;
// TODO gather operation.
if (header!=null && header.hasContent())
len+=flush(header);
if (header==null || !header.hasContent())
{
if (buffer!=null && buffer.hasContent())
len+=flush(buffer);
}
if (buffer==null || !buffer.hasContent())
{
if (trailer!=null && trailer.hasContent())
len+=flush(trailer);
}
return len;
}
public int flush(Buffer buffer) throws IOException
{
// sometimes flush nothing
if (random.nextInt(10) <2 )
{
// System.err.println("flush:"+0);
return 0;
}
// flush a random amount of data
int len=random.nextInt(20*rate);
if (len>buffer.length())
len=buffer.length();
// Load a length limited slice via a temp buffer
Buffer temp= buffer.get(len);
System.err.print(temp);
return len;
}
public boolean isBlocking()
{
return false;
}
}
public static void main(String[] arg)
throws Exception
{
// Just a little test main....
Server server = new Server();
server.addConnector(new RandomConnector());
Context context = new Context(server,"/",Context.SESSIONS);
context.addServlet(new ServletHolder(new HelloServlet()), "/*");
server.start();
server.join();
}
public static class HelloServlet extends HttpServlet
{
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter();
out.println("<h1>Hello SimpleServlet: "+request.getRequestURI()+"</h1><pre>");
int lines = random.nextInt(100);
for (int i=0;i<lines;i++)
out.println(i+" Blah blah blah. Now is the time for all good FSMs to work. Hoooo nooo broooon cooooo");
out.println("</pre>");
}
}
}