com.izforge.izpack.util

Class ProcessHelper

java.lang.Object

com.izforge.izpack.util.ProcessHelper

public class ProcessHelper
extends Object

Process helper methods.

Author:

Tim Anderson

Constructor Summary

Constructors

Constructor and Description
ProcessHelper()

Method Summary

Modifier and Type	Method and Description
static Process	exec(List<String> command) Executes the specified command in a new process.
static Process	exec(String... command) Executes the specified command in a new process.
static String	getJavaCommand() Returns the command to launch java on the current platform.
static void	tryExecJava() Verifies that java can be executed in a separate process.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessHelper

public ProcessHelper()

Method Detail

getJavaCommand

public static String getJavaCommand()

Returns the command to launch java on the current platform.

Returns:

the command. This will be fully qualified if the command is found

exec

public static Process exec(String... command)
                    throws IOException

Executes the specified command in a new process.

Parameters:

command - the command to execute

Returns:

the process

Throws:

IOException - if an I/O error occurs

exec

public static Process exec(List<String> command)
                    throws IOException

Executes the specified command in a new process.

Parameters:

command - the command to execute

Returns:

the process

Throws:

IOException - if an I/O error occurs

tryExecJava

public static void tryExecJava()
                        throws IOException

Verifies that java can be executed in a separate process.

Throws:

IOException - if java cannot be executed

SecurityException - if a security manager exists and doesn't allow creation of a process