org.apache.ambari.server.utils

Class ShellCommandUtil

java.lang.Object

org.apache.ambari.server.utils.ShellCommandUtil

public class ShellCommandUtil
extends Object

Logs OpenSsl command exit code with description

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	LINUX Set to true when run on Linux platforms
static boolean	MAC Set to true when run on Mac OS platforms
static String	MASK_EVERYBODY_RWX Permission mask 777 allows everybody to read/modify/execute file
static String	MASK_OWNER_ONLY_RW Permission mask 600 allows only owner to read and modify file.
static boolean	UNIX_LIKE Set to true when run if platform is detected to be UNIX compatible
static boolean	WINDOWS Set to true when run on Windows platforms

Constructor Summary

Constructors

Constructor and Description
ShellCommandUtil()

Method Summary

Modifier and Type	Method and Description
static String	getOpenSslCommandResult(String command, int exitCode)
static String	getUnixFilePermissions(String path) Gets file permissions on Linux systems.
static String	hideOpenSslPassword(String command)
static void	logOpenSslExitCode(String command, int exitCode)
static org.apache.ambari.server.utils.ShellCommandUtil.Result	runCommand(String[] args)
static void	setUnixFilePermissions(String mode, String path) Sets file permissions to a given value on Linux systems.

Methods inherited from class java.lang.Object

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

Field Detail

WINDOWS

public static final boolean WINDOWS

Set to true when run on Windows platforms

LINUX

public static final boolean LINUX

Set to true when run on Linux platforms

MAC

public static final boolean MAC

Set to true when run on Mac OS platforms

UNIX_LIKE

public static final boolean UNIX_LIKE

Set to true when run if platform is detected to be UNIX compatible

MASK_OWNER_ONLY_RW

public static final String MASK_OWNER_ONLY_RW

Permission mask 600 allows only owner to read and modify file. Other users (except root) can't read/modify file

See Also:

Constant Field Values

MASK_EVERYBODY_RWX

public static final String MASK_EVERYBODY_RWX

Permission mask 777 allows everybody to read/modify/execute file

See Also:

Constant Field Values

Constructor Detail

ShellCommandUtil

public ShellCommandUtil()

Method Detail

logOpenSslExitCode

public static void logOpenSslExitCode(String command,
                                      int exitCode)

hideOpenSslPassword

public static String hideOpenSslPassword(String command)

getOpenSslCommandResult

public static String getOpenSslCommandResult(String command,
                                             int exitCode)

getUnixFilePermissions

public static String getUnixFilePermissions(String path)

Gets file permissions on Linux systems. Under Windows/Mac, command always returns MASK_EVERYBODY_RWX

Parameters:

path -

setUnixFilePermissions

public static void setUnixFilePermissions(String mode,
                                          String path)

Sets file permissions to a given value on Linux systems. On Windows/Mac, command is silently ignored

Parameters:

mode -

path -

runCommand

public static org.apache.ambari.server.utils.ShellCommandUtil.Result runCommand(String[] args)
                                                                         throws IOException,
                                                                                InterruptedException

Throws:

IOException

InterruptedException