io.pravega.common.lang

Class ProcessStarter

java.lang.Object

io.pravega.common.lang.ProcessStarter

public class ProcessStarter
extends java.lang.Object

Helps start a Class out of Process.

Method Summary

Modifier and Type	Method and Description
ProcessStarter	args(java.lang.Object... args) Starts the Process using the given command-line arguments.
ProcessStarter	env(java.lang.String name, java.lang.Object value) Includes the given Environment Variable as part of the start.
static ProcessStarter	forClass(java.lang.Class<?> target) Creates a new instance of the ProcessStarter class.
java.lang.Process	start() Executes the Class using the accumulated options.
ProcessStarter	stdErr(java.lang.ProcessBuilder.Redirect redirect) Redirects the Standard Err of the Process to the given Redirect.
ProcessStarter	stdIn(java.lang.ProcessBuilder.Redirect redirect) Redirects the Standard In of the Process to the given Redirect.
ProcessStarter	stdOut(java.lang.ProcessBuilder.Redirect redirect) Redirects the Standard Out of the Process to the given Redirect.
ProcessStarter	sysProp(java.lang.String name, java.lang.Object value) Includes the given System Property as part of the start.

Methods inherited from class java.lang.Object

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

Method Detail

forClass

public static ProcessStarter forClass(java.lang.Class<?> target)

Creates a new instance of the ProcessStarter class.

Parameters:

target - The Class to start. This class must have a static main() method defined in it.

sysProp

public ProcessStarter sysProp(java.lang.String name,
                              java.lang.Object value)

Includes the given System Property as part of the start.

Parameters:

name - The System Property Name.

value - The System Property Value. This will have toString() invoked on it.

Returns:

This object instance.

env

public ProcessStarter env(java.lang.String name,
                          java.lang.Object value)

Includes the given Environment Variable as part of the start.

Parameters:

name - The Environment Variable Name.

value - The Environment Variable Value. This will have toString() invoked on it.

Returns:

This object instance.

stdOut

public ProcessStarter stdOut(java.lang.ProcessBuilder.Redirect redirect)

Redirects the Standard Out of the Process to the given Redirect.

Parameters:

redirect - The ProcessBuilder.Redirect to use.

Returns:

This object instance.

stdErr

public ProcessStarter stdErr(java.lang.ProcessBuilder.Redirect redirect)

Redirects the Standard Err of the Process to the given Redirect.

Parameters:

redirect - The ProcessBuilder.Redirect to use.

Returns:

This object instance.

stdIn

public ProcessStarter stdIn(java.lang.ProcessBuilder.Redirect redirect)

Redirects the Standard In of the Process to the given Redirect.

Parameters:

redirect - The ProcessBuilder.Redirect to use.

Returns:

This object instance.

args

public ProcessStarter args(java.lang.Object... args)

Starts the Process using the given command-line arguments.

Parameters:

args - The arguments to use.

Returns:

This object instance.

start

public java.lang.Process start()
                        throws java.io.IOException

Executes the Class using the accumulated options.

Returns:

The Process reference.

Throws:

java.io.IOException - If an error occurred.