/**
* Execute an OS command and return the result of stdout.
*
* @param command Command to run
* @return Returns output of the command in a string
* @throws ReplicatorException Thrown if command execution fails
*/
public String exec(String command) throws ReplicatorException {
String[] osArray = {"sh", "-c", command};
ProcessExecutor pe = new ProcessExecutor();
pe.setCommands(osArray);
if (logger.isDebugEnabled()) {
logger.debug("Executing OS command: " + command);
}
pe.run();
if (logger.isDebugEnabled()) {
logger.debug("OS command stdout: " + pe.getStdout());
logger.debug("OS command stderr: " + pe.getStderr());
logger.debug("OS command exit value: " + pe.getExitValue());
}
if (!pe.isSuccessful()) {
logger.error(
"OS command failed: command="
+ command
+ " rc="
+ pe.getExitValue()
+ " stdout="
+ pe.getStdout()
+ " stderr="
+ pe.getStderr());
throw new ReplicatorException("OS command failed: command=" + command);
}
return pe.getStdout();
}
/**
* Perform given command.
*
* @param cmd : command to execute
* @param waitTime : time in milliseconds to wait for command to complete.
*/
private void doListener(String[] cmd, int waitTime) {
ProcessExecutor pe = new ProcessExecutor();
pe.setCommands(cmd);
pe.setTimeout(2000);
pe.run();
if (waitTime != 0) {
try {
Thread.sleep(waitTime);
} catch (InterruptedException e) {
}
}
}