ariba.util.io
Class Exec

java.lang.Object
  ariba.util.io.Exec

public final class Exec
extends Object

Runtime.exec made simple

Method Summary

static int	exec(String[] cmdarray, String[] envp, int timeout, InputStream stdin, OutputStream stdout, OutputStream stderr)
static int	execWithMasterPassword(String[] cmdarray, String[] envp, int timeout, OutputStream stdout, OutputStream stderr) Exec the given command adding the master password info if necessary.
static void	main(String[] args)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

exec

public static int exec(String[] cmdarray,
                       String[] envp,
                       int timeout,
                       InputStream stdin,
                       OutputStream stdout,
                       OutputStream stderr)
                throws IOException

Throws:

IOException

execWithMasterPassword

public static int execWithMasterPassword(String[] cmdarray,
                                         String[] envp,
                                         int timeout,
                                         OutputStream stdout,
                                         OutputStream stderr)
                                  throws IOException

Exec the given command adding the master password info if necessary. Specifically, the -masterPasswordNoPrompt option is appended to the cmdarray array, and the master password is fetched and passed to the stdin of the exec call.

Two limitations:

(1) Original command that requres input data is not supported. In fact, there is no provision for the caller to provide the stdin (2) The -masterPasswordNoPrompt is appended at the end of the command line array, so commands that pipe or redirect output such as {"tableedit", "-script", "scriptfile", ">", "outfile"} will become {"tableedit", "-script", "scriptfile", ">", "outfile", "-masterPasswordNoPrompt"), which clearly won't work.

Parameters:

cmdarray - the command to execute, must be non null and not empty

envp - the environment to execute, can be mull.

timeout - timeout, a value of timeout will timeout immediately, negative value means no timeout (wait forever)

stdout - the stdout

stderr - the stderr

Returns:

the status of the exec'ed process. A value of 0 indicates normal termination.

Throws:

IOException - if an I/O error occurs

main

public static void main(String[] args)