/**
* Start the application
*
* @throws IOException if there is a problem with connection
* @throws InterruptedException if thread was interrupted
*/
private void start() throws IOException, InterruptedException {
Connection c = new Connection(myHost.getHostName(), myHost.getPort());
try {
configureKnownHosts(c);
c.connect(new HostKeyVerifier());
authenticate(c);
final Session s = c.openSession();
try {
s.execCommand(myCommand);
// Note that stdin is not being waited using semaphore.
// Instead, the SSH process waits for remote process exit
// if remote process exited, none is interested in stdin
// anyway.
forward("stdin", s.getStdin(), System.in, false);
forward("stdout", System.out, s.getStdout(), true);
forward("stderr", System.err, s.getStderr(), true);
myForwardCompleted.acquire(2); // wait only for stderr and stdout
s.waitForCondition(ChannelCondition.EXIT_STATUS, Long.MAX_VALUE);
Integer exitStatus = s.getExitStatus();
if (exitStatus == null) {
// broken exit status
exitStatus = 1;
}
System.exit(exitStatus.intValue() == 0 ? myExitCode : exitStatus.intValue());
} finally {
s.close();
}
} finally {
c.close();
}
}
private int waitCompletion(Session session) throws InterruptedException {
// I noticed that the exit status delivery often gets delayed. Wait up to 1 sec.
for (int i = 0; i < 10; i++) {
Integer r = session.getExitStatus();
if (r != null) return r;
Thread.sleep(100);
}
return -1;
}