/**
* Determines whether the contact is connected to shell of remote machine as a precheck for any
* further operation
*
* @param sshContact ID of SSH Contact
* @return <tt>true</tt> if the contact is connected <tt>false</tt> if the contact is not
* connected
*/
public boolean isShellConnected(ContactSSH sshContact) {
// a test command may also be run here
if (isSessionValid(sshContact)) {
return (sshContact.getShellChannel() != null);
}
/*
* Above should be return(sshContact.getShellChannel() != null
* && sshContact.getShellChannel().isConnected());
*
* but incorrect reply from stack for isConnected()
*/
return false;
}
/**
* Closes the Shell channel are associated IO Streams
*
* @param sshContact ID of SSH Contact
*/
public void closeShellChannel(ContactSSH sshContact) throws JSchException, IOException {
sshContact.closeShellIO();
sshContact.getShellChannel().disconnect();
sshContact.setShellChannel(null);
}