com.eteks.sweethome3d.tools

Class OperatingSystem

java.lang.Object

com.eteks.sweethome3d.tools.OperatingSystem

public class OperatingSystem
extends java.lang.Object

Tools used to test current user operating system.

Author:

Emmanuel Puybaret

Method Summary

Modifier and Type	Method and Description
static int	compareVersions(java.lang.String version1, java.lang.String version2) Returns a negative number if version1 < version2, 0 if version1 = version2 and a positive number if version1 > version2.
static java.io.File	createTemporaryFile(java.lang.String prefix, java.lang.String suffix) Returns a temporary file that will be deleted when JVM will exit.
static void	deleteTemporaryFiles() Deletes all the temporary files created with createTemporaryFile.
static java.io.File	getDefaultApplicationFolder() Returns default application folder.
static java.util.Comparator<java.io.File>	getFileVersionComparator() Returns a file comparator that sorts file names according to their version number (excluding their extension when they are the same).
static boolean	isJavaVersionBetween(java.lang.String javaMinimumVersion, java.lang.String javaMaximumVersion) Returns true if the version of the current JVM is greater or equal to the javaMinimumVersion and smaller than javaMaximumVersion.
static boolean	isJavaVersionGreaterOrEqual(java.lang.String javaMinimumVersion) Returns true if the given version is greater than or equal to the version of the current JVM.
static boolean	isLinux() Returns true if current operating is Linux.
static boolean	isMacOSX() Returns true if current operating is Mac OS X.
static boolean	isMacOSXBigSurOrSuperior() Returns true if current operating is Mac OS X 10.16 or superior.
static boolean	isMacOSXHighSierraOrSuperior() Returns true if current operating is Mac OS X 10.13 or superior.
static boolean	isMacOSXLeopardOrSuperior() Returns true if current operating is Mac OS X 10.5 or superior.
static boolean	isMacOSXLionOrSuperior() Returns true if current operating is Mac OS X 10.7 or superior.
static boolean	isMacOSXYosemiteOrSuperior() Returns true if current operating is Mac OS X 10.10 or superior.
static boolean	isWindows() Returns true if current operating is Windows.

Methods inherited from class java.lang.Object

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

Method Detail

isLinux

public static boolean isLinux()

Returns true if current operating is Linux.

isWindows

public static boolean isWindows()

Returns true if current operating is Windows.

isMacOSX

public static boolean isMacOSX()

Returns true if current operating is Mac OS X.

isMacOSXLeopardOrSuperior

public static boolean isMacOSXLeopardOrSuperior()

Returns true if current operating is Mac OS X 10.5 or superior.

isMacOSXLionOrSuperior

public static boolean isMacOSXLionOrSuperior()

Returns true if current operating is Mac OS X 10.7 or superior.

Since:

4.1

isMacOSXYosemiteOrSuperior

public static boolean isMacOSXYosemiteOrSuperior()

Returns true if current operating is Mac OS X 10.10 or superior.

Since:

4.5

isMacOSXHighSierraOrSuperior

public static boolean isMacOSXHighSierraOrSuperior()

Returns true if current operating is Mac OS X 10.13 or superior.

Since:

5.7

isMacOSXBigSurOrSuperior

public static boolean isMacOSXBigSurOrSuperior()

Returns true if current operating is Mac OS X 10.16 or superior.

Since:

6.5

isJavaVersionGreaterOrEqual

public static boolean isJavaVersionGreaterOrEqual(java.lang.String javaMinimumVersion)

Returns true if the given version is greater than or equal to the version of the current JVM.

Since:

4.0

isJavaVersionBetween

public static boolean isJavaVersionBetween(java.lang.String javaMinimumVersion,
                                           java.lang.String javaMaximumVersion)

Returns true if the version of the current JVM is greater or equal to the javaMinimumVersion and smaller than javaMaximumVersion.

Since:

4.2

compareVersions

public static int compareVersions(java.lang.String version1,
                                  java.lang.String version2)

Returns a negative number if version1 < version2, 0 if version1 = version2 and a positive number if version1 > version2. Version strings are first split into parts, each subpart ending at each punctuation, space or when a character of a different type is encountered (letter vs digit). Then each numeric or string subparts are compared to each other, strings being considered greater than null numbers and pre release strings (i.e. alpha, beta, rc). Examples:

 "" < "1"
 "0" < "1.0"
 "1.2beta" < "1.2"
 "1.2beta" < "1.2beta2"
 "1.2beta" < "1.2.0"
 "1.2beta4" < "1.2beta10"
 "1.2beta4" < "1.2"
 "1.2beta4" < "1.2rc"
 "1.2alpha" < "1.2beta"
 "1.2beta" < "1.2rc"
 "1.2rc" < "1.2"
 "1.2rc" < "1.2a"
 "1.2" < "1.2a"
 "1.2.0" < "1.2a"
 "1.2a" < "1.2b"
 "1.2a" < "1.2.1"
 "1.7.0_11" < "1.7.0_12"
 "1.7.0_11rc1" < "1.7.0_11rc2"
 "1.7.0_11rc" < "1.7.0_11"
 "1.7.0_9" < "1.7.0_11rc"
 "1.2" < "1.2.1"
 "1.2" < "1.2.0.1"

 "1.2" = "1.2.0.0" (missing information is considered as 0)
 "1.2beta4" = "1.2 beta-4" (punctuation, space or missing punctuation doesn't influence result)
 "1.2beta4" = "1,2,beta,4"
 

Since:

4.0

createTemporaryFile

public static java.io.File createTemporaryFile(java.lang.String prefix,
                                               java.lang.String suffix)
                                        throws java.io.IOException

Returns a temporary file that will be deleted when JVM will exit.

Throws:

java.io.IOException - if the file couldn't be created

getFileVersionComparator

public static java.util.Comparator<java.io.File> getFileVersionComparator()

Returns a file comparator that sorts file names according to their version number (excluding their extension when they are the same).

deleteTemporaryFiles

public static void deleteTemporaryFiles()

Deletes all the temporary files created with createTemporaryFile.

getDefaultApplicationFolder

public static java.io.File getDefaultApplicationFolder()
                                                throws java.io.IOException

Returns default application folder.

Throws:

java.io.IOException