/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package com.sun.enterprise.cli.framework;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

class User 
{
    private BufferedReader fromUser;
    private BufferedWriter toUser;
    private String quit;
    private String prompt;
    
    User(Reader in, Writer out, String quitPrefix, String prompt){
        fromUser = new BufferedReader(in);
        toUser = new BufferedWriter(out);
        quit = quitPrefix;
        this.prompt = prompt;
    }
      /**
       * Return false iff the line read from the user starts with the
       * quit character. This is a blocking call, waiting on input
       * from the user
       */
    boolean wantsToContinue() throws IOException {
        toUser.write(prompt);
        toUser.newLine();
        toUser.flush();
        return !fromUser.readLine().startsWith(quit);
    }

    void handleException (Exception e) throws IOException {
        toUser.write(e.getMessage());
        toUser.flush();
    }
    
}