com.h3c.util

Class ProcessUtils

java.lang.Object

com.h3c.util.ProcessUtils

public final class ProcessUtils
extends Object

Set of utilities for launching a process and parsing it's output.

Method Summary

Methods

Modifier and Type	Method and Description
static String	exec(String command) Run the specified command and return it's output as a string.
static String	exec(String[] command) Run the specified command and return it's output as a string.
static String	exec(String[] command, String cwd) Run the specified command and return it's output as a string.
static String	exec(String command, String cwd) Run the specified command and return it's output as a string.
static BufferedReader	execute(String command) Launch a process and return a buffered reader ready to consume its output.
static BufferedReader	execute(String[] command, String cwd) Launch a process and return a buffered reader ready to consume its output.
static BufferedReader	execute(String command, String cwd) Launch a process and return a buffered reader ready to consume its output.
static BufferedReader	open(String file) Open the system default editor on the specified file.
static String	slurp(BufferedReader br) Consume the output of a command from the given buffered reader.

Methods inherited from class java.lang.Object

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

Method Detail

open

public static BufferedReader open(String file)

Open the system default editor on the specified file.

Parameters:

file - path of the file which should be open

Returns:

buffered reader for consuming the process output; null if the process failed to launch correctly

execute

public static BufferedReader execute(String command,
                     String cwd)

Launch a process and return a buffered reader ready to consume its output.

Parameters:

command - command to be executed

cwd - path to the current working directory in which to launch the subprocess

Returns:

buffered reader for consuming the process output; null if the process failed to launch correctly

execute

public static BufferedReader execute(String[] command,
                     String cwd)

Launch a process and return a buffered reader ready to consume its output.

Parameters:

command - array of command arguments to be executed

cwd - path to the current working directory in which to launch the subprocess

Returns:

buffered reader for consuming the process output; null if the process failed to launch correctly

execute

public static BufferedReader execute(String command)

Launch a process and return a buffered reader ready to consume its output.

Parameters:

command - command to be executed

Returns:

buffered reader for consuming the process output; null if the process failed to launch correctly

exec

public static String exec(String command)

Run the specified command and return it's output as a string.

Parameters:

command - command to be executed

Returns:

string containing command standard output; null if the process failed to launch correctly

exec

public static String exec(String[] command)

Run the specified command and return it's output as a string.

Parameters:

command - array of command arguments to be executed

Returns:

string containing command standard output; null if the process failed to launch correctly

exec

public static String exec(String[] command,
          String cwd)

Run the specified command and return it's output as a string.

Parameters:

command - array of command arguments to be executed

cwd - path to the current working directory in which to launch the subprocess

Returns:

string containing command standard output; null if the process failed to launch correctly

exec

public static String exec(String command,
          String cwd)

Run the specified command and return it's output as a string.

Parameters:

command - command to be executed

cwd - path to the current working directory in which to launch the subprocess

Returns:

string containing command standard output; null if the process failed to launch correctly

slurp

public static String slurp(BufferedReader br)

Consume the output of a command from the given buffered reader.

Parameters:

br - buffered reader containing output of a command

Returns:

string containing command standard output; null if the process failed to launch correctly