com.gridsystems.utils
Class SystemUtils

java.lang.Object
  com.gridsystems.utils.SystemUtils

public final class SystemUtils
extends java.lang.Object

General Utilities for several modules.

Version:

1.0

Author:

Xmas

Field Summary

static java.lang.String	AIX_POWERPC AIX PowerPC.
static java.lang.String	HPUX_IA64 HPUX IA64.
static java.lang.String	HPUX_PA HPUX PARISC.
static java.lang.String	LINUX_AMD64 Linux AMD64.
static java.lang.String	LINUX_I686 Linux i686.
static java.lang.String	LINUX_IA64 Linux IA64.
static java.lang.String	MACOSX_I386 MacOSX Intel.
static java.lang.String	MACOSX_POWERPC MacOSX PowerPC.
static java.lang.String	SUNOS_I386 SunOS i386.
static java.lang.String	SUNOS_SPARC SunOS sparc.
static java.lang.String	WINDOWS_IA64 Windows IA64.
static java.lang.String	WINDOWS_X86 Windows x86.

Method Summary

static java.lang.Integer	execAndSaveOutput(java.lang.String[] command, java.lang.String[] envp, java.io.File baseDir, java.io.File outputFile) Executes the given command and saves its output into a file.
static java.lang.Integer	execAndSaveOutput(java.lang.String[] command, java.lang.String[] envp, java.io.File baseDir, java.io.OutputStream output) Executes the given command and saves its output into a file.
static java.lang.Integer	execAndSaveOutput(java.lang.String command, java.lang.String[] envp, java.io.File baseDir, java.io.File outputFile) Executes the given command and saves its output into a file.
static java.lang.Integer	execAndSaveOutput(java.lang.String command, java.lang.String[] envp, java.io.File baseDir, java.io.OutputStream output) Executes the given command and saves its output into a file.
static java.lang.Integer	execPiped(java.lang.String[] command, java.lang.String[] envp, java.io.File baseDir) Executes the given command piping its input and output with System.out and System.in.
static java.lang.Integer	execPiped(java.lang.String command, java.lang.String[] envp, java.io.File baseDir) Executes the given command piping its input and output with System.out and System.in.
static java.io.File	extractDynamicLibrary(java.lang.String dynamiclibraryname, java.lang.Class<?> pathclass) Deprecated. Use JNIUtils.extractDynamicLibrary method.
static java.io.File	extractDynamicLibrary(java.lang.String dynamiclibraryname, java.lang.String path) Deprecated. Use JNIUtils.extractDynamicLibrary method.
protected static com.gridsystems.utils.SystemUtils.OsMapEntry	getEntry(java.lang.String osName) Gets a GridSystems platform for the specified properties.
static java.util.Properties	getEnvironment() Retrieves the environment variables list from the system.
static java.lang.String	getOsName() Gets the gridSystems platform name of this machine.
static java.lang.String	getOsName(java.lang.String osName, java.lang.String osArch) Gets the GridSystems platform name for a machine with the passed properties.
static java.lang.String	getOSVersion()
static java.lang.String	getSimpleArchName() Gets the local architecture name.
static java.lang.String	getSimpleOsName() Gets the local OS name without the CPU architecture.
static java.lang.String	getSimpleOsName(java.lang.String osName) Extracts the simple OS name from the specified platform id.
static java.lang.String	getTempDir()
static boolean	isUnix() Return true if this OS is not windows.
static boolean	isWindows() Return true if this OS is windows.

Methods inherited from class java.lang.Object

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

Field Detail

WINDOWS_X86

public static final java.lang.String WINDOWS_X86

Windows x86.

See Also:

Constant Field Values

WINDOWS_IA64

public static final java.lang.String WINDOWS_IA64

Windows IA64.

See Also:

Constant Field Values

SUNOS_SPARC

public static final java.lang.String SUNOS_SPARC

SunOS sparc.

See Also:

Constant Field Values

SUNOS_I386

public static final java.lang.String SUNOS_I386

SunOS i386.

See Also:

Constant Field Values

LINUX_I686

public static final java.lang.String LINUX_I686

Linux i686.

See Also:

Constant Field Values

LINUX_IA64

public static final java.lang.String LINUX_IA64

Linux IA64.

See Also:

Constant Field Values

LINUX_AMD64

public static final java.lang.String LINUX_AMD64

Linux AMD64.

See Also:

Constant Field Values

HPUX_PA

public static final java.lang.String HPUX_PA

HPUX PARISC.

See Also:

Constant Field Values

HPUX_IA64

public static final java.lang.String HPUX_IA64

HPUX IA64.

See Also:

Constant Field Values

AIX_POWERPC

public static final java.lang.String AIX_POWERPC

AIX PowerPC.

See Also:

Constant Field Values

MACOSX_POWERPC

public static final java.lang.String MACOSX_POWERPC

MacOSX PowerPC.

See Also:

Constant Field Values

MACOSX_I386

public static final java.lang.String MACOSX_I386

MacOSX Intel.

See Also:

Constant Field Values

Method Detail

isWindows

public static boolean isWindows()

Return true if this OS is windows.

Returns:

true if this operating system is Windows

isUnix

public static boolean isUnix()

Return true if this OS is not windows.

Returns:

true if this operating system is not Windows

getOsName

public static java.lang.String getOsName()

Gets the gridSystems platform name of this machine.

Returns:

A "normalized" name for this operating system

getSimpleOsName

public static java.lang.String getSimpleOsName()

Gets the local OS name without the CPU architecture.

Returns:

The OS Name

getSimpleArchName

public static java.lang.String getSimpleArchName()

Gets the local architecture name.

Returns:

The Architecture name

getSimpleOsName

public static java.lang.String getSimpleOsName(java.lang.String osName)

Extracts the simple OS name from the specified platform id.

Parameters:

osName - The platform id

Returns:

The stripped OS name

getOsName

public static java.lang.String getOsName(java.lang.String osName,
                                         java.lang.String osArch)

Gets the GridSystems platform name for a machine with the passed properties.

Parameters:

osName - A value for the "os.name" system property

osArch - A value for the "os.arch" system property

Returns:

A platform name

getEntry

protected static com.gridsystems.utils.SystemUtils.OsMapEntry getEntry(java.lang.String osName)

Gets a GridSystems platform for the specified properties.

Parameters:

osName - A value for the "os.name" system property

Returns:

A platform entry, or null

getOSVersion

public static java.lang.String getOSVersion()

Returns:

Gets OS version.

getEnvironment

public static java.util.Properties getEnvironment()

Retrieves the environment variables list from the system.

Returns:

The environment or an empty instance if an error occurs

extractDynamicLibrary

public static java.io.File extractDynamicLibrary(java.lang.String dynamiclibraryname,
                                                 java.lang.Class<?> pathclass)
                                          throws java.lang.Exception

Deprecated. Use JNIUtils.extractDynamicLibrary method.

Extracts a Dynamic library of a jar file and load into memory.

Parameters:

dynamiclibraryname - the DL name

pathclass - the path class

Returns:

Path to file extracted.

Throws:

java.lang.Exception - if error

extractDynamicLibrary

public static java.io.File extractDynamicLibrary(java.lang.String dynamiclibraryname,
                                                 java.lang.String path)
                                          throws java.lang.Exception

Deprecated. Use JNIUtils.extractDynamicLibrary method.

Extracts a Dynamic library of a jar file and loads it into memory.

Parameters:

dynamiclibraryname - the DL name

path - the path

Returns:

Path to file extracted.

Throws:

java.lang.Exception - if error

getTempDir

public static java.lang.String getTempDir()

Returns:

the temporal system directory

execAndSaveOutput

public static java.lang.Integer execAndSaveOutput(java.lang.String command,
                                                  java.lang.String[] envp,
                                                  java.io.File baseDir,
                                                  java.io.OutputStream output)

Executes the given command and saves its output into a file.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

output - Where store StdOut and StdErr of executable

Returns:

null, if execution has failed, otherwise return Integer with exit code

execAndSaveOutput

public static java.lang.Integer execAndSaveOutput(java.lang.String[] command,
                                                  java.lang.String[] envp,
                                                  java.io.File baseDir,
                                                  java.io.OutputStream output)

Executes the given command and saves its output into a file.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

output - Where store StdOut and StdErr of executable

Returns:

null, if execution has failed, otherwise return Integer with exit code

execPiped

public static java.lang.Integer execPiped(java.lang.String command,
                                          java.lang.String[] envp,
                                          java.io.File baseDir)

Executes the given command piping its input and output with System.out and System.in.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

Returns:

null, if execution has failed, otherwise return Integer with exit code

execAndSaveOutput

public static java.lang.Integer execAndSaveOutput(java.lang.String[] command,
                                                  java.lang.String[] envp,
                                                  java.io.File baseDir,
                                                  java.io.File outputFile)

Executes the given command and saves its output into a file.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

outputFile - the output file

Returns:

null, if execution has failed, otherwise return Integer with exit code

execAndSaveOutput

public static java.lang.Integer execAndSaveOutput(java.lang.String command,
                                                  java.lang.String[] envp,
                                                  java.io.File baseDir,
                                                  java.io.File outputFile)

Executes the given command and saves its output into a file.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

outputFile - the output file

Returns:

null, if execution has failed, otherwise return Integer with exit code

execPiped

public static java.lang.Integer execPiped(java.lang.String[] command,
                                          java.lang.String[] envp,
                                          java.io.File baseDir)

Executes the given command piping its input and output with System.out and System.in.

Parameters:

command - the command to execute

envp - the environment

baseDir - the base directory

Returns:

null, if execution has failed, otherwise return Integer with exit code