/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * *   - Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. * *   - Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in the *     documentation and/or other materials provided with the distribution. * *   - Neither the name of Sun Microsystems nor the names of its *     contributors may be used to endorse or promote products derived *     from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * Java(TM) SE 6 version. */import java.io.*;import java.net.*;import java.util.*;class QuoteServerThread extends Thread {    private DatagramSocket socket = null;    BufferedReader qfs = null;    private boolean moreQuotes = true;    QuoteServerThread() {        super("QuoteServer");        try {            socket = new DatagramSocket();            System.out.println("QuoteServer listening on port: " + socket.getLocalPort());        } catch (java.io.IOException e) {            System.err.println("Could not create datagram socket.");        }        this.openInputFile();    }    public void run() {        if (socket == null)            return;        while (moreQuotes) {            try {                byte[] buf = null;                DatagramPacket packet;                InetAddress address;                int port;                String dString = null;                    // receive request                packet = new DatagramPacket(buf, 256);                socket.receive(packet);                address = packet.getAddress();                port = packet.getPort();                    // send response                if (qfs == null)                    dString = new Date().toString();                else                    dString = getNextQuote();                buf = dString.getBytes();                packet = new DatagramPacket(buf, buf.length, address, port);                socket.send(packet);            } catch (IOException e) {                System.err.println("IOException:  " + e);                moreQuotes = false;                e.printStackTrace();            }        }        socket.close();    }    private void openInputFile() {        try {            qfs = new BufferedReader(new FileReader("one-liners.txt"));        } catch (java.io.FileNotFoundException e) {            System.err.println("Could not open quote file. Serving time instead.");        }    }    private String getNextQuote() {        String returnValue = null;        try {            if ((returnValue = qfs.readLine()) == null) {                qfs.close();                moreQuotes = false;                returnValue = "No more quotes. Goodbye.";            }        } catch (IOException e) {            returnValue = "IOException occurred in server.";        }        return returnValue;    }}