jodd.util
Class SystemUtil

java.lang.Object
  jodd.util.SystemUtil

public class SystemUtil
extends java.lang.Object

Various system utilities.

Field Summary

static java.lang.String	FILE_ENCODING
static java.lang.String	HTTP_PROXY_HOST
static java.lang.String	HTTP_PROXY_PASSWORD
static java.lang.String	HTTP_PROXY_PORT
static java.lang.String	HTTP_PROXY_USER
static java.lang.String	JAVA_CLASSPATH
static java.lang.String	JAVA_HOME
static java.lang.String	JAVA_SPECIFICATION_VERSION
static java.lang.String	JAVA_VENDOR
static java.lang.String	JAVA_VERSION
static java.lang.String	OS_NAME
static java.lang.String	OS_VERSION
static java.lang.String	PATH_SEPARATOR
static java.lang.String	SUN_BOOT_CLASS_PATH
static java.lang.String	TEMP_DIR
static java.lang.String	USER_DIR
static java.lang.String	USER_HOME
static java.lang.String	USER_NAME

Constructor Summary

SystemUtil()

Method Summary

static java.lang.String	getClassPath() Returns system class path.
static java.lang.String	getFileEncoding() Returns file encoding.
static java.lang.String	getJavaHome() Returns JAVA_HOME which is not equals to "java.home" property since it points to JAVA_HOME/jre folder.
static java.lang.String	getJavaJreHome() Returns JRE home.
static double	getJavaSpecificationVersion() Retrieves the version of the currently running JVM.
static java.lang.String	getJavaVendor() Returns Java vendor.
static java.lang.String	getJavaVersion() Returns Java version.
static java.lang.String	getOsName() Returns OS name.
static java.lang.String	getOsVersion() Returns OS version.
static java.lang.String	getPathSeparator() Returns path separator.
static java.lang.String	getSunBoothClassPath() Returns sun bootstrap class path.
static java.lang.String	getTempDir() Returns system temp dir.
static java.lang.String	getUserDir() Returns current working folder.
static java.lang.String	getUserHome() Returns user home folder.
static java.lang.String	getUserName() Returns current user.
static java.lang.String	getWorkingFolder() Returns current working folder.
static boolean	isAtLeastJdk15() Checks if the currently running JVM is at least compliant with JDK 1.5.
static boolean	isAtLeastJdk16() Checks if the currently running JVM is at least compliant with JDK 1.6.
static boolean	isHostAix() Returns true< if host is AIX.
static boolean	isHostLinux() Returns true if host is Linux.
static boolean	isHostMac() Returns true if host is Mac.
static boolean	isHostSolaris() Returns true if host is Solaris.
static boolean	isHostUnix() Returns true if host is a general unix.
static boolean	isHostWindows() Returns true if host is Windows.
static void	setHttpProxy(java.lang.String host, java.lang.String port) Sets HTTP proxy settings.
static void	setHttpProxy(java.lang.String host, java.lang.String port, java.lang.String username, java.lang.String password) Sets HTTP proxy settings.
static double	systemTimerResolution() Calculates and returns java system timer resolution in miliseconds.

Methods inherited from class java.lang.Object

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

Field Detail

USER_DIR

public static final java.lang.String USER_DIR

See Also:

Constant Field Values

USER_NAME

public static final java.lang.String USER_NAME

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Constant Field Values

USER_HOME

public static final java.lang.String USER_HOME

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Constant Field Values

JAVA_HOME

public static final java.lang.String JAVA_HOME

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Constant Field Values

TEMP_DIR

public static final java.lang.String TEMP_DIR

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Constant Field Values

OS_NAME

public static final java.lang.String OS_NAME

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Constant Field Values

OS_VERSION

public static final java.lang.String OS_VERSION

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Constant Field Values

JAVA_VERSION

public static final java.lang.String JAVA_VERSION

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Constant Field Values

JAVA_SPECIFICATION_VERSION

public static final java.lang.String JAVA_SPECIFICATION_VERSION

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Constant Field Values

JAVA_VENDOR

public static final java.lang.String JAVA_VENDOR

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Constant Field Values

JAVA_CLASSPATH

public static final java.lang.String JAVA_CLASSPATH

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Constant Field Values

PATH_SEPARATOR

public static final java.lang.String PATH_SEPARATOR

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Constant Field Values

HTTP_PROXY_HOST

public static final java.lang.String HTTP_PROXY_HOST

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Constant Field Values

HTTP_PROXY_PORT

public static final java.lang.String HTTP_PROXY_PORT

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Constant Field Values

HTTP_PROXY_USER

public static final java.lang.String HTTP_PROXY_USER

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Constant Field Values

HTTP_PROXY_PASSWORD

public static final java.lang.String HTTP_PROXY_PASSWORD

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Constant Field Values

FILE_ENCODING

public static final java.lang.String FILE_ENCODING

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Constant Field Values

SUN_BOOT_CLASS_PATH

public static final java.lang.String SUN_BOOT_CLASS_PATH

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Constant Field Values

Constructor Detail

SystemUtil

public SystemUtil()

Method Detail

systemTimerResolution

public static double systemTimerResolution()

Calculates and returns java system timer resolution in miliseconds. Resolution of a timer depends on platform and java version.

getUserDir

public static java.lang.String getUserDir()

Returns current working folder.

getUserName

public static java.lang.String getUserName()

Returns current user.

getUserHome

public static java.lang.String getUserHome()

Returns user home folder.

getWorkingFolder

public static java.lang.String getWorkingFolder()

Returns current working folder. Just a better name for getUserDir().

getJavaJreHome

public static java.lang.String getJavaJreHome()

Returns JRE home.

getJavaHome

public static java.lang.String getJavaHome()

Returns JAVA_HOME which is not equals to "java.home" property since it points to JAVA_HOME/jre folder.

getTempDir

public static java.lang.String getTempDir()

Returns system temp dir.

getOsName

public static java.lang.String getOsName()

Returns OS name.

getOsVersion

public static java.lang.String getOsVersion()

Returns OS version.

getJavaVersion

public static java.lang.String getJavaVersion()

Returns Java version.

See Also:

getJavaSpecificationVersion()

getJavaSpecificationVersion

public static double getJavaSpecificationVersion()

Retrieves the version of the currently running JVM.

getJavaVendor

public static java.lang.String getJavaVendor()

Returns Java vendor.

getClassPath

public static java.lang.String getClassPath()

Returns system class path.

getPathSeparator

public static java.lang.String getPathSeparator()

Returns path separator.

getFileEncoding

public static java.lang.String getFileEncoding()

Returns file encoding.

isAtLeastJdk15

public static boolean isAtLeastJdk15()

Checks if the currently running JVM is at least compliant with JDK 1.5.

isAtLeastJdk16

public static boolean isAtLeastJdk16()

Checks if the currently running JVM is at least compliant with JDK 1.6.

isHostWindows

public static boolean isHostWindows()

Returns true if host is Windows.

isHostLinux

public static boolean isHostLinux()

Returns true if host is Linux.

isHostUnix

public static boolean isHostUnix()

Returns true if host is a general unix.

isHostMac

public static boolean isHostMac()

Returns true if host is Mac.

isHostSolaris

public static boolean isHostSolaris()

Returns true if host is Solaris.

isHostAix

public static boolean isHostAix()

Returns true< if host is AIX.

getSunBoothClassPath

public static java.lang.String getSunBoothClassPath()

Returns sun bootstrap class path.

setHttpProxy

public static void setHttpProxy(java.lang.String host,
                                java.lang.String port,
                                java.lang.String username,
                                java.lang.String password)

Sets HTTP proxy settings.

setHttpProxy

public static void setHttpProxy(java.lang.String host,
                                java.lang.String port)

Sets HTTP proxy settings.