ch.icosys.popjava.core.util

Class SystemUtil

java.lang.Object

ch.icosys.popjava.core.util.SystemUtil

public class SystemUtil
extends java.lang.Object

This glass gives some static method to deal with the system

Constructor Summary

Constructors

Constructor and Description
SystemUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	canChangeUser(java.lang.String user) Mark if we should use a super user command to start the process.
static boolean	commandExists(java.lang.String command)
static boolean	commandWork(java.util.List<java.lang.String> command) Test if a command works.
static void	endAllChildren() Kill all objects created by this JVM
static boolean	mkdir(java.nio.file.Path dir, java.lang.String executeAs) Create a new directory via command line, it's possible of doing this using a different user if preconfigured.
static void	registerLocalJVM(Broker broker) Register local JVM object so we can kill them
static boolean	rm(java.nio.file.Path path, java.lang.String executeAs) Delete a file/directory via command line, it's possible of doing this using a different user if preconfigured.
static boolean	rmdir(java.nio.file.Path dir, java.lang.String executeAs) Delete a directory via command line, it's possible of doing this using a different user if preconfigured.
static int	runCmd(java.util.List<java.lang.String> argvs) Run a new command
static int	runCmd(java.util.List<java.lang.String> argvs, java.lang.String dir) Run a new command
static int	runCmd(java.util.List<java.lang.String> argvs, java.lang.String dir, java.lang.String executeAs) Run a new command in a directory
static int	runRemoteCmd(java.lang.String url, java.util.List<java.lang.String> command)
static int	runRemoteCmd(java.lang.String url, java.lang.String port, java.util.List<java.lang.String> command)
static int	runRemoteCmdSSHJ(java.lang.String url, java.util.List<java.lang.String> command)

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemUtil

public SystemUtil()

Method Detail

endAllChildren

public static void endAllChildren()

Kill all objects created by this JVM

runCmd

public static int runCmd(java.util.List<java.lang.String> argvs,
                         java.lang.String dir,
                         java.lang.String executeAs)

Run a new command in a directory

Parameters:

argvs - arguments to pass to the new process

dir - Working directory

executeAs - Should we change user if possible

Returns:

0 if the command launch is a success

mkdir

public static boolean mkdir(java.nio.file.Path dir,
                            java.lang.String executeAs)

Create a new directory via command line, it's possible of doing this using a different user if preconfigured.

Parameters:

dir - directory we want to create

executeAs - the user we want the directory to be created with, can be null

Returns:

true if create correctly, false otherwise

rm

public static boolean rm(java.nio.file.Path path,
                         java.lang.String executeAs)

Delete a file/directory via command line, it's possible of doing this using a different user if preconfigured. To delete a directory it must be empty.

Parameters:

path - file/directory we want to remove

executeAs - the user we want the directory to be delete with, can be null

Returns:

true if create correctly, false otherwise

rmdir

public static boolean rmdir(java.nio.file.Path dir,
                            java.lang.String executeAs)

Delete a directory via command line, it's possible of doing this using a different user if preconfigured. The directory must be empty.

Parameters:

dir - directory we want to remove

executeAs - the user we want the directory to be delete with, can be null

Returns:

true if create correctly, false otherwise

runCmd

public static int runCmd(java.util.List<java.lang.String> argvs,
                         java.lang.String dir)

Run a new command

Parameters:

argvs - arguments to pass to the new process

dir - Working directory

Returns:

0 if the command launch is a success

runCmd

public static int runCmd(java.util.List<java.lang.String> argvs)

Run a new command

Parameters:

argvs - arguments to pass to the new process

Returns:

0 if the command launch is a success

commandExists

public static boolean commandExists(java.lang.String command)

commandWork

public static boolean commandWork(java.util.List<java.lang.String> command)

Test if a command works. Timeout 1 second

Parameters:

command - a 'sh' command

Returns:

true if the command exit value is 0, false otherwise

canChangeUser

public static boolean canChangeUser(java.lang.String user)

Mark if we should use a super user command to start the process. Defined in Configuration.setJobmanagerExecutionUser(String).

Parameters:

user - The user we want to execute

Returns:

true if we have to switch user

runRemoteCmdSSHJ

public static int runRemoteCmdSSHJ(java.lang.String url,
                                   java.util.List<java.lang.String> command)

runRemoteCmd

public static int runRemoteCmd(java.lang.String url,
                               java.util.List<java.lang.String> command)

runRemoteCmd

public static int runRemoteCmd(java.lang.String url,
                               java.lang.String port,
                               java.util.List<java.lang.String> command)

registerLocalJVM

public static void registerLocalJVM(Broker broker)

Register local JVM object so we can kill them

Parameters:

broker - the broker of the local JVM object