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/***************************************************************************
* Copyright (c) 2004 - 2008 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.internal.http;
import org.eclipse.net4j.buffer.IBuffer;
import org.eclipse.net4j.connector.IConnector;
import org.eclipse.net4j.http.IHTTPAcceptor;
import org.eclipse.net4j.http.IHTTPConnector;
import org.eclipse.net4j.http.INet4jTransportServlet;
import org.eclipse.net4j.internal.http.bundle.OM;
import org.eclipse.net4j.internal.util.om.trace.ContextTracer;
import org.eclipse.net4j.util.StringUtil;
import org.eclipse.net4j.util.security.IRandomizer;
import org.eclipse.internal.net4j.acceptor.Acceptor;
import org.eclipse.internal.net4j.channel.InternalChannel;
import org.eclipse.internal.net4j.connector.Connector;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author Eike Stepper
*/
public class HTTPAcceptor extends Acceptor implements IHTTPAcceptor, INet4jTransportServlet.RequestHandler
{
public static final int DEFAULT_CONNECTOR_ID_LENGTH = 32;
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, HTTPAcceptor.class);
private IRandomizer randomizer;
private INet4jTransportServlet servlet;
private int connectorIDLength = DEFAULT_CONNECTOR_ID_LENGTH;
private Map<String, HTTPConnector> httpConnectors = new HashMap<String, HTTPConnector>();
public HTTPAcceptor()
{
}
public IRandomizer getRandomizer()
{
return randomizer;
}
public void setRandomizer(IRandomizer randomizer)
{
this.randomizer = randomizer;
}
public INet4jTransportServlet getServlet()
{
return servlet;
}
public void setServlet(INet4jTransportServlet servlet)
{
if (this.servlet != null)
{
this.servlet.setRequestHandler(null);
}
this.servlet = servlet;
servlet.setRequestHandler(this);
}
public int getConnectorIDLength()
{
return connectorIDLength;
}
public void setConnectorIDLength(int connectorIDLength)
{
this.connectorIDLength = connectorIDLength;
}
public IHTTPConnector[] handleList(String connectorID)
{
if (StringUtil.isEmpty(connectorID))
{
List<IHTTPConnector> result = new ArrayList<IHTTPConnector>();
for (IConnector acceptedConnector : getAcceptedConnectors())
{
IHTTPConnector connector = (IHTTPConnector)acceptedConnector;
result.add(connector);
}
return result.toArray(new IHTTPConnector[result.size()]);
}
return new IHTTPConnector[] { httpConnectors.get(connectorID) };
}
public String handleConnect(String userID)
{
String connectorID = createConnectorID(userID);
System.out.println("HELLO " + userID + " (" + connectorID + ")");
HTTPServerConnector connector = new HTTPServerConnector(this);
prepareConnector(connector);
connector.setConnectorID(connectorID);
connector.setUserID(userID);
addConnector(connector);
return connectorID;
}
public void handleOpenChannel(String connectorID, short channelIndex, int channelID, String protocolType)
{
HTTPConnector connector = httpConnectors.get(connectorID);
if (connector == null)
{
throw new IllegalArgumentException("Invalid connectorID: " + connectorID);
}
InternalChannel channel = connector.createChannel(channelID, channelIndex, protocolType);
if (channel == null)
{
throw new IllegalStateException("Could not open channel");
}
channel.activate();
}
public void handleSendBuffer(String connectorID, short channelIndex, byte[] data)
{
HTTPConnector connector = httpConnectors.get(connectorID);
if (connector == null)
{
throw new IllegalArgumentException("Invalid connectorID: " + connectorID);
}
InternalChannel channel = connector.getChannel(channelIndex);
if (channel == null)
{
throw new IllegalArgumentException("Invalid channelIndex: " + channelIndex);
}
IBuffer buffer = getBufferProvider().provideBuffer();
ByteBuffer byteBuffer = buffer.startPutting(channelIndex);
for (int i = 0; i < data.length; i++)
{
System.out.println("Payload: " + data[i]);
byteBuffer.put(data[i]);
}
buffer.flip();
channel.handleBufferFromMultiplexer(buffer);
}
@Override
public String toString()
{
return "HTTPAcceptor";
}
@Override
public void addConnector(Connector connector)
{
super.addConnector(connector);
HTTPConnector httpConnector = (HTTPConnector)connector;
httpConnectors.put(httpConnector.getConnectorID(), httpConnector);
}
@Override
public void removeConnector(IConnector connector)
{
HTTPConnector httpConnector = (HTTPConnector)connector;
httpConnectors.remove(httpConnector.getConnectorID());
super.removeConnector(connector);
}
@Override
protected void doBeforeActivate() throws Exception
{
super.doBeforeActivate();
checkState(randomizer, "randomizer");
checkState(connectorIDLength > 0, "Constraint violated: connectorIDLength > 0");
}
protected String createConnectorID(String userID)
{
return randomizer.nextString(connectorIDLength, "0123456789ABCDEF");
}
}
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