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 * Copyright (c) 2015, salesforce.com, inc.
 * All rights reserved.
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 * 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 salesforce.com, inc. 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
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 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 */

package com.salesforce.dataloader.util;

import java.io.*;

/**
 * StreamGobbler gobbles exec streams Adapted from Michael C. Daconta's JavaWorld article
 *
 * @author Lexi Viripaeff
 * @since 6.0
 */
public class StreamGobbler extends Thread {

    private InputStream is;
    private String type;
    private OutputStream os;

    public StreamGobbler(InputStream is, String type) {
        this(is, type, null);
    }

    public StreamGobbler(InputStream is, String type, OutputStream redirect) {
        this.is = is;
        this.type = type;
        this.os = redirect;
    }

    @Override
    public void run() {
        try {
            PrintWriter pw = null;
            if (os != null) pw = new PrintWriter(os);

            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            while ((line = br.readLine()) != null) {
                if (pw != null) pw.println(line);
                System.out.println(type + ">" + line);

            }
            if (pw != null) pw.flush();
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }

}