/*
 *  Copyright (c) 2002-2003, The Joust Project
 *  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 the Joust Project 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.
 *
 *  File created by keith @ Mar 25, 2003
 *
 */

package edu.tufts.vue.collab.im;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class CmdLineReader {
    protected CmdLineListener listener;
    protected InputStream stream;

    public CmdLineReader(CmdLineListener listener) {
        this(listener, System.in);
    }

    public CmdLineReader(CmdLineListener listener, InputStream stream) {
        this.listener = listener;
        this.stream = stream;

        Thread thread = new Thread(new CLThread(), "Command line thread");
        thread.start();
    }

    protected class CLThread implements Runnable {
        public void run() {
            BufferedReader in = new BufferedReader(
                    new InputStreamReader(stream));
            try {
                for (;;) {
                    String line = in.readLine();

                    if (line == null) break;

                    listener.processCmd(CmdLineReader.this, line);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}