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    <p>I don't know you if you want to read this, but you know, in the Java world, you should always look for a solution before implementing your own. And the solution for common problems, most of the time, comes from <a href="http://commons.apache.org/" rel="nofollow">Apache Commons</a> or other Apache projects. Saying that everything but your solution doesn't work or is too complicated to you will only cost you time and money (and your job, eventually).</p> <p><a href="http://commons.apache.org/exec/" rel="nofollow">Apache Commons Exec</a> is what you need to solve your problem faster and easier.</p> <p>---- Edit ----</p> <p>Here is some code of how to capture the output of the child process. There's a class just for it, the <a href="http://commons.apache.org/exec/apidocs/org/apache/commons/exec/PumpStreamHandler.html" rel="nofollow">PumpStreamHandler</a>:</p> <pre><code>DefaultExecutor exec = new DefaultExecutor(); PumpStreamHandler streamHandler = new PumpStreamHandler(); exec.setStreamHandler(streamHandler); CommandLine commandline = CommandLine.parse(command); //where command is your command line exec.execute(commandline); </code></pre> <p>---- Edit 2 ----</p> <p>Here is the copy-paste solution you want to capture the message using an <code>OutputStream</code>:</p> <pre><code>public abstract class LogOutputStream extends OutputStream { protected static final String LINE_SEPERATOR = System.getProperty("line.separator"); public static final int DEFAULT_BUFFER_LENGTH = 2048; protected boolean hasBeenClosed = false; protected byte[] buf; protected int count; private int bufLength; public LogOutputStream() { bufLength = DEFAULT_BUFFER_LENGTH; buf = new byte[DEFAULT_BUFFER_LENGTH]; count = 0; } public void close() { flush(); hasBeenClosed = true; } public void write(final int b) throws IOException { if (hasBeenClosed) { throw new IOException("The stream has been closed."); } if (b == 0) { return; } if (count == bufLength) { final int newBufLength = bufLength + DEFAULT_BUFFER_LENGTH; final byte[] newBuf = new byte[newBufLength]; System.arraycopy(buf, 0, newBuf, 0, bufLength); buf = newBuf; bufLength = newBufLength; } buf[count] = (byte) b; count++; } public void flush() { if (count == 0) { return; } if (count == LINE_SEPERATOR.length()) { if (((char) buf[0]) == LINE_SEPERATOR.charAt(0) &amp;&amp; ((count == 1) || ((count == 2) &amp;&amp; ((char) buf[1]) == LINE_SEPERATOR.charAt(1)))) { reset(); return; } } final byte[] theBytes = new byte[count]; System.arraycopy(buf, 0, theBytes, 0, count); log(new String(theBytes)); reset(); } private void reset() { count = 0; } public abstract void log(String message); } </code></pre> <p>Then just create a subclass of it, implement the <code>public void log(String message)</code> with the code that updates the UI, and it's done.</p>
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    1. USGilberto Torrezan
    1. USGilberto Torrezan
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    1. COI dont like external packages in general, but I have faced so many problems implementing features lately, that this might seem like a good idea right about now. I will give it a check and inform you! Thanks! :)
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      1. USAngelos Chalaris
    2. COCould you support me with some code here? Trying to find how to do this, seems like a very good package to solve my problem, however I cannot get a usable example to build my code from! :S
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    3. COHere is the code
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