import java.io.*;
import org.apache.tools.ant.taskdefs.*;

/**
 * @author Joshua Daniel Franklin <joshuadf@u>
 *
 * example of using the exec subsystem of ant, a full-featured API
 * over Java's Runtime.exec() including timeout and capturing stdout
 * and stderr via threads.
 * 
 * Very handy when calling matlab from java.
 * 
 * javac -cp ant.jar antExecute.java 
 * java -cp ant.jar:. antExecute
 * 
 * http://joshuadf.blogspot.com/2007/02/i-needed-something-similar-to-commons.html
 *
 */
public class antExecute {

  public static void main(String[] args) {
    String mybin = "/bin/sleep";
    String pwd = "/tmp/";

    String[] cli = {mybin,"4"};

    Long timeout = (long) 2000; // seconds * 1000
    ExecuteWatchdog execwatch = new ExecuteWatchdog(timeout);
    ByteArrayOutputStream myOut = new ByteArrayOutputStream();
    ByteArrayOutputStream myErr = new ByteArrayOutputStream();
    Execute exec = new Execute(new PumpStreamHandler(myOut,myErr),execwatch);

    exec.setWorkingDirectory(new File(pwd));
    exec.setCommandline(cli);

    try {
      int exitval = exec.execute();
    } catch (Exception e) {
      e.printStackTrace();
    }

    if (exec.killedProcess()) {
      System.out.println("watcher killed the process!");
    }
    System.out.println("out: " + myOut.toString());
    System.err.println("err: " + myErr.toString());
    System.out.println("done");
  }
}