Refactor and extend client/server model

java/base/src/main/java/base/Duplex.java

@@ -0,0 +1,3 @@
+package base;
+
+public interface Duplex extends Forwarder, Sender {}

java/base/src/main/java/base/Forwarder.java

@@ -1,8 +1,6 @@
-package base.receiver;
-
-import base.Control;
+package base;
 
 public interface Forwarder extends Control {
 	public void register(Receiver receiver);
 	public void remove(Receiver receiver);
-}
+}

java/base/src/main/java/base/Receiver.java

@@ -1,7 +1,5 @@
-package base.receiver;
+package base;
 
 public interface Receiver {
-
 	public void receive(byte[] buffer);
-
 }

java/base/src/main/java/base/Sender.java

@@ -1,9 +1,7 @@
-package base.sender;
+package base;
 
 import java.io.IOException;
 
-import base.Control;
-
 public interface Sender extends Control {
 	public void send(byte[] buffer) throws IOException;
 }

java/base/src/main/java/base/loader/AbstractLoader.java

@@ -10,14 +10,18 @@ import org.picocontainer.parameters.ConstantParameter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import base.Duplex;
+import base.Forwarder;
+import base.Sender;
 import base.exception.LoaderException;
-import base.sender.UdpSender;
-import base.server.forwarder.TcpServerChannelForwarder;
-import base.server.forwarder.TcpServerSocketForwarder;
-import base.server.forwarder.UdpServerForwarder;
+import base.server.datagram.UdpSender;
+import base.server.forwarder.UdpDuplexClientForwarder;
+import base.server.forwarder.UdpDuplexServerForwarder;
 
-public class AbstractLoader<E> {
+public class AbstractLoader<T> {
 	protected static final String PROPERTIES_FILE = "loader.properties";
+	protected static final Properties SERVER = null;
+
 	protected Logger logger = LoggerFactory.getLogger(AbstractLoader.class);
     protected MutablePicoContainer pico;
     
@@ -31,8 +35,8 @@ public class AbstractLoader<E> {
 	}
 
 	@SuppressWarnings({ "rawtypes", "unchecked" })
-	public static <E> E getLoader() throws LoaderException {
-    	return (E) new AbstractLoader(readProperties(PROPERTIES_FILE));
+	public static <T> T getLoader() throws LoaderException {
+    	return (T) new AbstractLoader(readProperties(PROPERTIES_FILE));
     }
 
 	public static Properties readProperties(String propertiesFile) throws LoaderException {
@@ -46,51 +50,97 @@ public class AbstractLoader<E> {
 		return properties;
 	}
 
-	protected void addSender(String protocol, String implementation, String host, int port) throws LoaderException {
-		Class<?> senderClass = null;
+	protected Class<?> getSenderClass(String protocol, String implementation) throws LoaderException {
+    	switch (protocol) {
+			case "tcp":
+				switch (implementation) {
+					case "channel":
+						return base.server.channel.TcpClient.class; 
+					default:
+					case "socket":
+						return base.server.socket.TcpClient.class; 
+					}
+				case "udp":
+					return UdpSender.class;
+		}
+		throw new LoaderException("Failed to determine <Sender>");
+	}
+
+	protected Class<?> getClientForwarderClass(String protocol, String implementation) throws LoaderException {
 		switch (protocol) {
 			case "tcp":
 				switch (implementation) {
 					case "channel":
-						senderClass = base.server.channel.TcpClient.class; 
-						break;
+						return base.server.forwarder.TcpClientChannelForwarder.class;
 					default:
 					case "socket":
-						senderClass = base.server.socket.TcpClient.class; 
+						return base.server.forwarder.TcpClientSocketForwarder.class;
 				}
-				break;
 			case "udp":
-				senderClass = UdpSender.class;
-				break;
+				return UdpDuplexClientForwarder.class;
 		}
-		if (senderClass == null) {
-			throw new LoaderException("Failed to determine <Sender>");
+		throw new LoaderException("Failed to determine <Forwarder>");
+	}
+
+	protected Class<?> getServerForwarderClass(String protocol, String implementation) throws LoaderException {
+		switch (protocol) {
+			case "tcp":
+				switch (implementation) {
+					case "channel":
+						return base.server.forwarder.TcpChannelServerForwarder.class;
+					default:
+					case "socket":
+						return base.server.forwarder.TcpSocketServerForwarder.class;
+				}
+			case "udp":
+				return UdpDuplexServerForwarder.class;
 		}
-		pico.addComponent(senderClass, senderClass, new Parameter[]{
+		throw new LoaderException("Failed to determine <Forwarder>");
+	}
+
+	protected void addClientSender(String protocol, String implementation, String host, int port) throws LoaderException {
+		Class<?> senderClass = getSenderClass(protocol, implementation);
+		logger.debug("Adding " + senderClass);
+		pico.addComponent(Sender.class, senderClass, new Parameter[]{
 			new ConstantParameter(host),
 			new ConstantParameter(port)});
 	}
 
-    protected void addForwarder(String protocol, String implementation, int port) throws LoaderException {
-		Class<?> forwarderClass = null;
-		switch (protocol) {
-				case "tcp":
-					switch (implementation) {
-					case "channel":
-						forwarderClass = TcpServerChannelForwarder.class;
-						break;
-					default:
-					case "socket":
-						forwarderClass = TcpServerSocketForwarder.class;
-				}
-				break;
-			case "udp":
-				forwarderClass = UdpServerForwarder.class;
-		}
-		if (forwarderClass == null) {
-			throw new LoaderException("Failed to determine <Forwarder>");
-		}
-		pico.addComponent(forwarderClass, forwarderClass, new Parameter[]{
+	protected void addServerSender(String protocol, String implementation, int port) throws LoaderException {
+		Class<?> senderClass = getSenderClass(protocol, implementation);
+		logger.debug("Adding " + senderClass);
+		pico.addComponent(Sender.class, senderClass, new Parameter[]{
 			new ConstantParameter(port)});
 	}
+
+	protected void addClientForwarder(String protocol, String implementation, String host, int port) throws LoaderException {
+		Class<?> forwarderClass = getClientForwarderClass(protocol, implementation);
+		logger.debug("Adding " + forwarderClass);
+		pico.addComponent(Forwarder.class, forwarderClass, new Parameter[]{
+			new ConstantParameter(host),
+			new ConstantParameter(port)});
+	}
+
+	protected void addClientDuplex(String protocol, String implementation, String host, int port) throws LoaderException {
+		Class<?> duplexClass = getClientForwarderClass(protocol, implementation);
+		logger.debug("Adding " + duplexClass);
+		pico.addComponent(Duplex.class, duplexClass, new Parameter[]{
+			new ConstantParameter(host),
+			new ConstantParameter(port)});
+		
+	}
+
+	protected void addServerForwarder(String protocol, String implementation, int port) throws LoaderException {
+		Class<?> forwarderClass = getServerForwarderClass(protocol, implementation);
+		logger.debug("Adding " + forwarderClass);
+		pico.addComponent(Forwarder.class, forwarderClass, new Parameter[]{
+			new ConstantParameter(port)});		
+	}
+
+	protected void addServerDuplex(String protocol, String implementation, int port) throws LoaderException {
+		Class<?> duplexClass = getServerForwarderClass(protocol, implementation);
+		logger.debug("Adding " + duplexClass);
+		pico.addComponent(Duplex.class, duplexClass, new Parameter[]{
+			new ConstantParameter(port)});		
+	}
 }

java/base/src/main/java/base/sender/TcpSender.java

@@ -1,19 +0,0 @@
-package base.sender;
-
-import java.io.IOException;
-
-import base.server.socket.TcpClient;
-
-public abstract class TcpSender extends TcpClient implements Sender {
-	public TcpSender(String host, int port) {
-		super(host, port);
-	}
-
-	public void send(byte[] buffer) throws IOException {
-		if (!active()) {
-			start();
-			// Control over threads here?
-		}
-		outputStream.write(buffer);		
-	}
-}

java/base/src/main/java/base/server/channel/TcpClient.java

@@ -10,9 +10,9 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.Set;
 
+import base.Sender;
 import base.exception.worker.ActivateException;
 import base.exception.worker.DeactivateException;
-import base.sender.Sender;
 import base.work.Listen;
 import base.work.Work;
 import base.worker.Worker;

java/base/src/main/java/base/server/channel/TcpServer.java

@@ -13,9 +13,9 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.Set;
 
+import base.Sender;
 import base.exception.worker.ActivateException;
 import base.exception.worker.DeactivateException;
-import base.sender.Sender;
 import base.server.channel.TcpServerClient;
 import base.work.Work;
 

java/base/src/main/java/base/server/channel/TcpServerClient.java

@@ -4,7 +4,7 @@ import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.channels.SocketChannel;
 
-import base.sender.Sender;
+import base.Sender;
 import base.work.Listen;
 
 public class TcpServerClient extends Listen<byte[]> implements Sender {

java/base/src/main/java/base/server/datagram/UdpDuplexClient.java

@@ -0,0 +1,22 @@
+package base.server.datagram;
+
+import java.io.IOException;
+
+import base.Sender;
+
+public class UdpDuplexClient extends UdpMulticastClient implements Sender {
+
+	public UdpDuplexClient(int port) {
+		super(port);
+	}
+
+	public void send(byte[] buffer) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	protected void input(byte[] buffer) {
+		// TODO Auto-generated method stub
+		
+	}
+}

java/base/src/main/java/base/server/datagram/UdpDuplexServer.java

@@ -0,0 +1,9 @@
+package base.server.datagram;
+
+public class UdpDuplexServer extends UdpMulticastServer {
+
+	public UdpDuplexServer(int port) {
+		super(port);
+	}
+
+}

java/base/src/main/java/base/server/datagram/UdpMulticastServer.java

@@ -5,9 +5,9 @@ import java.net.DatagramPacket;
 import java.net.InetAddress;
 import java.net.MulticastSocket;
 
+import base.Sender;
 import base.exception.worker.ActivateException;
 import base.exception.worker.DeactivateException;
-import base.sender.Sender;
 import base.work.Listen;
 import base.worker.Worker;
 

java/base/src/main/java/base/server/datagram/UdpSender.java

@@ -1,4 +1,4 @@
-package base.sender;
+package base.server.datagram;
 
 import java.io.IOException;
 import java.net.DatagramPacket;
@@ -10,6 +10,8 @@ import java.net.UnknownHostException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import base.Sender;
+
 public class UdpSender implements Sender {
 	protected static final String HOST = "localhost";
 	protected Logger logger = LoggerFactory.getLogger(getClass());
@@ -29,21 +31,6 @@ public class UdpSender implements Sender {
 		this.port = port;
 	}
 
-	protected boolean setup() {
-		
-		return true;
-	}
-
-	public void send(byte[] buffer) {
-		try {
-			setup();
-			DatagramPacket datagramPacket = new DatagramPacket(buffer, buffer.length, inetAddress, port);
-			datagramSocket.send(datagramPacket);
-		} catch (IOException e) {
-			logger.error("Failed to send buffer", e);
-		}		
-	}
-
 	public void start() {
 		if (datagramSocket == null) {
 			try {
@@ -63,4 +50,14 @@ public class UdpSender implements Sender {
 	public void exit() {
 		stop();
 	}
+
+	public void send(byte[] buffer) {
+		try {
+			DatagramPacket datagramPacket = new DatagramPacket(buffer, buffer.length, inetAddress, port);
+			datagramSocket.send(datagramPacket);
+		} catch (IOException e) {
+			logger.error("Failed to send buffer", e);
+		}		
+	}
+
 }

java/base/src/main/java/base/server/forwarder/TcpChannelServerForwarder.java

@@ -2,15 +2,15 @@ package base.server.forwarder;
 
 import java.util.ArrayList;
 
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Duplex;
+import base.Receiver;
 import base.server.channel.TcpServer;
 import base.server.channel.TcpServerClient;
 
-public class TcpServerChannelForwarder extends TcpServer implements Forwarder {
+public class TcpChannelServerForwarder extends TcpServer implements Duplex {
 	protected ArrayList<Receiver> receiverList;
 
-	public TcpServerChannelForwarder(int port) {
+	public TcpChannelServerForwarder(int port) {
 		 super(port);
 		 receiverList = new ArrayList<Receiver>();
 	 }

java/base/src/main/java/base/server/forwarder/TcpClientChannelForwarder.java

@@ -2,16 +2,16 @@ package base.server.forwarder;
 
 import java.util.ArrayList;
 
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Duplex;
+import base.Receiver;
 import base.server.socket.TcpClient;
 import base.server.socket.TcpServerClient;
 
-public class TcpClientChannelForwarder extends TcpClient implements Forwarder {
+public class TcpClientChannelForwarder extends TcpClient implements Duplex {
 	protected ArrayList<Receiver> receiverList;
 
-	public TcpClientChannelForwarder(int port) {
-		 super(port);
+	public TcpClientChannelForwarder(String host, int port) {
+		 super(host, port);
 		 receiverList = new ArrayList<Receiver>();
 	 }
 

java/base/src/main/java/base/server/forwarder/TcpClientSocketForwarder.java

@@ -2,16 +2,16 @@ package base.server.forwarder;
 
 import java.util.ArrayList;
 
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Duplex;
+import base.Receiver;
 import base.server.channel.TcpClient;
 import base.server.channel.TcpServerClient;
 
-public class TcpClientSocketForwarder extends TcpClient implements Forwarder {
+public class TcpClientSocketForwarder extends TcpClient implements Duplex {
 	protected ArrayList<Receiver> receiverList;
 
-	public TcpClientSocketForwarder(int port) {
-		 super(port);
+	public TcpClientSocketForwarder(String host, int port) {
+		 super(host, port);
 		 receiverList = new ArrayList<Receiver>();
 	 }
 

java/base/src/main/java/base/server/forwarder/TcpSocketServerForwarder.java

@@ -2,15 +2,15 @@ package base.server.forwarder;
 
 import java.util.ArrayList;
 
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Duplex;
+import base.Receiver;
 import base.server.socket.TcpServer;
 import base.server.socket.TcpServerClient;
 
-public class TcpServerSocketForwarder extends TcpServer implements Forwarder {
+public class TcpSocketServerForwarder extends TcpServer implements Duplex {
 	protected ArrayList<Receiver> receiverList;
 
-	public TcpServerSocketForwarder(int port) {
+	public TcpSocketServerForwarder(int port) {
 		 super(port);
 		 receiverList = new ArrayList<Receiver>();
 	 }

java/base/src/main/java/base/server/forwarder/UdpDuplexClientForwarder.java

@@ -0,0 +1,30 @@
+package base.server.forwarder;
+
+import java.util.ArrayList;
+
+import base.Duplex;
+import base.Receiver;
+import base.server.datagram.UdpDuplexClient;
+
+public class UdpDuplexClientForwarder extends UdpDuplexClient implements Duplex {
+	protected ArrayList<Receiver> receiverList;
+
+	public UdpDuplexClientForwarder(String host, int port) {
+		 super(port);
+		 receiverList = new ArrayList<Receiver>();
+	 }
+
+	public void register(Receiver receiver) {
+		receiverList.add(receiver);
+	}
+
+	public void remove(Receiver receiver) {
+		receiverList.remove(receiver);
+	}
+
+	public void input(byte[] buffer) {
+		for (Receiver receiver: receiverList) {
+			receiver.receive(buffer);
+		}
+	}
+}

java/base/src/main/java/base/server/forwarder/UdpDuplexServerForwarder.java

@@ -0,0 +1,30 @@
+package base.server.forwarder;
+
+import java.util.ArrayList;
+
+import base.Duplex;
+import base.Receiver;
+import base.server.datagram.UdpDuplexServer;
+
+public class UdpDuplexServerForwarder extends UdpDuplexServer implements Duplex {
+	protected ArrayList<Receiver> receiverList;
+
+	public UdpDuplexServerForwarder(int port) {
+		 super(port);
+		 receiverList = new ArrayList<Receiver>();
+	 }
+
+	public void register(Receiver receiver) {
+		receiverList.add(receiver);
+	}
+
+	public void remove(Receiver receiver) {
+		receiverList.remove(receiver);
+	}
+
+	public void input(byte[] buffer) {
+		for (Receiver receiver: receiverList) {
+			receiver.receive(buffer);
+		}
+	}
+}

java/base/src/main/java/base/server/forwarder/UdpServerForwarder.java

@@ -2,8 +2,8 @@ package base.server.forwarder;
 
 import java.util.ArrayList;
 
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Forwarder;
+import base.Receiver;
 import base.server.datagram.UdpServer;
 
 public class UdpServerForwarder extends UdpServer implements Forwarder {

java/base/src/main/java/base/server/receiver/AbstractReceiver.java

@@ -1,17 +1,17 @@
-package base.server.forwarder;
+package base.server.receiver;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import base.Control;
-import base.receiver.Forwarder;
-import base.receiver.Receiver;
+import base.Forwarder;
+import base.Receiver;
 
 public abstract class AbstractReceiver implements Receiver, Control {
 	protected Logger logger = LoggerFactory.getLogger(getClass());
 
 	protected Forwarder forwarder;
-	
+
 	public AbstractReceiver(Forwarder forwarder) {
 		this.forwarder = forwarder;
 		forwarder.register(this);

java/base/src/main/java/base/server/socket/AbstractTcpClient.java

@@ -5,8 +5,8 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.Socket;
 
+import base.Sender;
 import base.exception.worker.DeactivateException;
-import base.sender.Sender;
 import base.work.Work;
 
 public abstract class AbstractTcpClient extends Work implements Sender {

java/base/src/main/java/base/server/socket/TcpClient.java

@@ -4,8 +4,8 @@ import java.io.IOException;
 import java.net.Socket;
 import java.net.UnknownHostException;
 
+import base.Sender;
 import base.exception.worker.ActivateException;
-import base.sender.Sender;
 
 public class TcpClient extends AbstractTcpClient implements Sender {
 	protected static final String HOST = "localhost";

java/base/src/main/java/base/server/socket/TcpServer.java

@@ -6,9 +6,9 @@ import java.net.ServerSocket;
 import java.net.Socket;
 import java.util.ArrayList;
 
+import base.Sender;
 import base.exception.worker.ActivateException;
 import base.exception.worker.DeactivateException;
-import base.sender.Sender;
 import base.work.Work;
 
 public class TcpServer extends Work implements Sender {

java/base/src/main/java/base/work/Work.java

@@ -3,6 +3,7 @@ package base.work;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import base.Control;
 import base.exception.worker.ActivateException;
 import base.exception.worker.DeactivateException;
 import base.worker.DirectWorker;
@@ -11,7 +12,7 @@ import base.worker.Worker;
 import base.worker.pool.PooledWorker;
 import base.worker.pool.WorkerPool;
 
-public abstract class Work {
+public abstract class Work implements Control {
 	protected static final Worker.Type WORKER_TYPE = Worker.Type.BACKGROUND;
 
     protected Logger logger = LoggerFactory.getLogger(getClass());

java/base/src/test/java/junit/TestUdpUnicastCommunication.java

@@ -7,7 +7,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-import base.sender.UdpSender;
+import base.server.datagram.UdpSender;
 import base.server.datagram.UdpServer;
 
 public class TestUdpUnicastCommunication {