문제

네트워크를 바탕으로 여러 가전을 제어하기 위한 리모컨 프로그램입니다 실행순서를 클릭하세요

프로그램 코드

E001	// 클라이언트에서 연결 요청하면 서버는 네트워크 연결 초기화
E002	// 서버 데이터가 도착할 때까지 계속 대기
E003	// (수신전용스레드와 별개로) 메인 스레드 N41 이후 실행중
E004	// 버튼을 클릭할 때까지 계속 대기
E005	// 리모컨 전원버튼 클릭
E006	// 서버로 데이터([RMTC] [리모컨] POWER) 전송
E007	// 리모컨 우측버튼 클릭
E008	// 서버로 데이터([RMTC] [리모컨] RIGHT) 전송
E009	// 프로그램 종료버튼(우측상단 X) 클릭
E010	// 메인스레드와 수신전용스레드가 모두 종료하여 프로그램 종료

	import javax.swing.*;
	import java.awt.event.*;
	import remoteControl.RemoteControlNetwork;

	public class RemoteController
	{
1		public static void main( String[] args ) {
			final String imagePath = "C:\\Users\\user\\Downloads\\JAVA-main\\src\\remoteControl\\image\\";
			String serverIP = "localhost";
2			RemoteControlNetwork panel =
3			                                  new RemoteControlNetwork( imagePath, serverIP );

			JFrame frame = new JFrame( "리모컨(클라이언트)" );
			frame.getContentPane().add( panel );
			frame.addWindowListener( new WindowAdapter() {
Wb				public void windowClosing( WindowEvent event ) {
W1					panel.close();
We				}
			} );
			frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
			frame.pack();
			frame.setVisible( true );
4		}
	}

	package remoteControl;
	import java.awt.event.ActionEvent;
	import network.Network;

	public class RemoteControlNetwork extends RemoteControllerPanel implements Runnable
	{
		private Network network;
		private String  id;
		private final String header = "[RMTC] ";

RN1b		public RemoteControlNetwork( String imgPath, String serverIP ) {
RN11			super( imgPath );
RN12			connectAsClient( serverIP, this.getClass().getSimpleName() );
RN1e		}

RN2b		public RemoteControlNetwork( RemoteControl appliance, String serverIP ) {
RN21			super( appliance );
RN22			connectAsClient( serverIP, appliance.getClass().getSimpleName() );
RN2e		}

RN3b		public void connectAsClient( String serverIP, String applianceName ) {
			id = "[" + applianceName +"]";
RN31			network =
RN32			          new Network();
RN33			network.connectAsClient( serverIP, this );
RN3e		}

		@Override
RN4b		public void actionPerformed( ActionEvent event ) {
			String message = "";

			if ( event.getSource() == button[POWER] )
				message = header + "POWER";
			else if ( event.getSource() == button[UP] )
				message = header + "UP";
			else if ( event.getSource() == button[DOWN] )
				message = header + "DOWN";
			else if ( event.getSource() == button[LEFT] )
				message = header + "LEFT";
			else if ( event.getSource() == button[RIGHT] )
				message = header + "RIGHT";

RN41			network.write( message );
RN4e		}

		@Override
RN5b		public void run(){
RN51			for ( String message = null; ( message =
RN52			                                          network.read() )
			                                                               != null; ) {
				if ( !message.contains( header ) )
					continue;
				else if ( message.contains( "POWER" ) && ( appliance != null ) )
RN53					appliance.clickPower();
				else if ( message.contains( "UP" ) && ( appliance != null ) )
RN54					appliance.clickUp();
				else if ( message.contains( "DOWN" ) && ( appliance != null ) )
RN55					appliance.clickDown();
				else if ( message.contains( "LEFT" ) && ( appliance != null ) )
RN56					appliance.clickLeft();
				else if ( message.contains( "RIGHT" ) && ( appliance != null ) )
RN57					appliance.clickRight();
RN58			}
RN5e		}
		
RN6b		public void close() {
			network.write( header + id + " 네트워크 연결 종료" );
RN61			network.close();
RN6e		}
	}

	package network;
	import java.io.*;
	import java.net.*;

	public class Network
	{
		public static final int serverPort = 7700;
		protected ServerSocket serverSocket;
		protected Socket socket;
		private BufferedReader in;
		private PrintWriter out;
		private Thread waitForCounterpart;

N1b		public Network() {
			serverSocket = null;
			socket = null;
			in = null;
			out = null;
			waitForCounterpart = null;
N1e		}
		
N2b		public void connectAsServer( Runnable obj ) {
			try {
				serverSocket = new ServerSocket( serverPort );
N21				socket =
N22				         serverSocket.accept();
N23				connectInOut( obj );
			} catch ( Exception e ) {
				e.printStackTrace();
			}
N2e		}
		
N3b		public void connectAsClient( String serverIP, Runnable obj ) {
			try {
N31				socket =
N32				         new Socket( serverIP, serverPort );
N33				connectInOut( obj );
			} catch ( Exception e ) {
				e.printStackTrace();
			}
N3e		}

N4b		public void connectInOut( Runnable obj ) {
			try {
				in = new BufferedReader( new InputStreamReader( socket.getInputStream() ));
				out = new PrintWriter( socket.getOutputStream(), true );
				waitForCounterpart = new Thread( obj );
N41				waitForCounterpart.start();
			} catch ( Exception e ) {
				e.printStackTrace();
			}
N4e		}
		
N5b		public String read() {
			try {
				if ( this.isConnecting() == true )
N51					return
N52					       in.readLine();
			} catch ( Exception e ) {
				e.printStackTrace();
			}
			
			return null;
N5e		}
		
N6b		public void write( String data ) {
			try {
				if ( this.isConnecting() == true )
N61					out.println( data );
			} catch ( Exception e ) {
				e.printStackTrace();
			}
N6e		}

		public boolean isConnecting() {
			if ( ( socket != null )
					&& ( in != null )
					&& ( out != null )
					&& ( waitForCounterpart != null )
					&& ( waitForCounterpart.getState() != Thread.State.TERMINATED ) )
				return true;
			else
				return false;
		}
		
N7b		public void close() {
			try {
				if ( waitForCounterpart != null ) {
					waitForCounterpart.interrupt();
					waitForCounterpart = null;
				}
				if ( in != null ) {
					in.close();
					in=null;
				}
				if ( out != null ) {
					out.flush();
					out.close();
					out = null;
				}
				if ( socket != null ) {
					socket.close();
					socket = null;
				}
				if ( serverSocket != null ) {
					serverSocket.close();
					serverSocket = null;
				}
			} catch ( Exception e ) {
				e.printStackTrace();
			}
N7e		}
	}

	package remoteControl;
	import javax.swing.*;
	import java.awt.*;
	import java.awt.event.*;

	public class RemoteControllerPanel extends JPanel implements ActionListener
	{
		protected JButton[] button;
		public final static int POWER = 0, UP = 1, DOWN = 2, LEFT = 3, RIGHT = 4;
		protected RemoteControl appliance;

R1b		public RemoteControllerPanel( String imgPath ) {
			this.appliance = null;

			final String[] strButton = { "power.gif", "up.gif", "down.gif", "left.gif", "right.gif" };
			button = new JButton[strButton.length];
			for ( int i = 0; i < strButton.length; i++ ) {
				button[i] = new JButton( new ImageIcon( new ImageIcon( imgPath + strButton[i] ).getImage().getScaledInstance( 30, 30, Image.SCALE_SMOOTH ) ) );
				button[i].addActionListener( this );
			}

			this.setPreferredSize( new Dimension( 240, 120 ) );
			this.setLayout( new BorderLayout() );
			this.add( button[POWER], BorderLayout.CENTER );
			this.add( button[UP   ], BorderLayout.NORTH );
			this.add( button[DOWN ], BorderLayout.SOUTH );
			this.add( button[LEFT ], BorderLayout.WEST );
			this.add( button[RIGHT], BorderLayout.EAST );
R1e		}

R2b		public RemoteControllerPanel( String imgPath, RemoteControl appliance ) {
			this( imgPath );
			this.appliance = appliance;
R2e		}

R3b		public RemoteControllerPanel( RemoteControl appliance ) {
			this.appliance = appliance;
R3e		}

		@Override
R4b		public void actionPerformed( ActionEvent event ) {
			if ( ( event.getSource() == button[POWER] ) && ( appliance != null ) )
				appliance.clickPower();
			else if ( ( event.getSource() == button[UP] ) && ( appliance != null ) )
				appliance.clickUp();
			else if ( ( event.getSource() == button[DOWN] ) && ( appliance != null ) )
				appliance.clickDown();
			else if ( ( event.getSource() == button[LEFT] ) && ( appliance != null ) )
				appliance.clickLeft();
			else if ( ( event.getSource() == button[RIGHT] ) && ( appliance != null ) )
				appliance.clickRight();
R4e		}
	}

	package remoteControl;

	public interface RemoteControl
	{
		boolean ON = true, OFF = false;
		void clickPower();
		void clickUp();
		void clickDown();
		void clickLeft();
		void clickRight();
	}