Top Constructors Methods
org.apache.groovy.util

public Class SystemUtil

extends Object
Class Inheritance

Constructor Summary

AccessConstructor and Description
public
SystemUtil()

Method Summary

Modifier and TypeMethod and Description
public static boolean

Returns:

value of the Boolean system property or false
getBooleanSafe(String
the name of the system property.
name)

Retrieves a Boolean System property, or returns false if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
public static Integer

Returns:

value of the Integer system property or the default value
getIntegerSafe(String
the name of the system property.
name, Integer
the default value
def)

Retrieves an Integer System property

public static Long

Returns:

value of the Long system property or the default value
getLongSafe(String
the name of the system property.
name, Long
the default value
def)

Retrieves an Long System property

public static String

Returns:

value of the system property or the default value
getSystemPropertySafe(String
the name of the system property.
name, String
a default value.
defaultValue)

Retrieves a System property, or returns some default value if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
public static String

Returns:

value of the system property or null
getSystemPropertySafe(String
the name of the system property.
name)

Retrieves a System property, or null if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
public static String

Returns:

the found name
setSystemPropertyFrom(final String
the non-null name=value String
nameValue)

Sets a system property from a name=value String.

public static String

Returns:

the found property name or null if the operation wasn't successful
setSystemPropertyFromSafe(final String
the non-null name=value String
nameValue)

Sets a system property from a name=value String.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Constructor Detail

SystemUtilback to summary
public SystemUtil()

Method Detail

getBooleanSafeback to summary
public static boolean getBooleanSafe(String name)

Retrieves a Boolean System property, or returns false if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
Parameters
name:String

the name of the system property.

Returns:boolean

value of the Boolean system property or false

getIntegerSafeback to summary
public static Integer getIntegerSafe(String name, Integer def)

Retrieves an Integer System property

Parameters
name:String

the name of the system property.

def:Integer

the default value

Returns:Integer

value of the Integer system property or the default value

getLongSafeback to summary
public static Long getLongSafe(String name, Long def)

Retrieves an Long System property

Parameters
name:String

the name of the system property.

def:Long

the default value

Returns:Long

value of the Long system property or the default value

getSystemPropertySafeback to summary
public static String getSystemPropertySafe(String name, String defaultValue)

Retrieves a System property, or returns some default value if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
Parameters
name:String

the name of the system property.

defaultValue:String

a default value.

Returns:String

value of the system property or the default value

getSystemPropertySafeback to summary
public static String getSystemPropertySafe(String name)

Retrieves a System property, or null if:

  • the property isn't found
  • the property name is null or empty
  • if a security manager exists and its checkPropertyAccess method doesn't allow access to the specified system property.
Parameters
name:String

the name of the system property.

Returns:String

value of the system property or null

setSystemPropertyFromback to summary
public static String setSystemPropertyFrom(final String nameValue)

Sets a system property from a name=value String. If no '=' is found, the property is assumed to be a Boolean flag with value true.

Parameters
nameValue:String

the non-null name=value String

Returns:String

the found name

Exceptions
IllegalArgumentException:
if nameValue is null
setSystemPropertyFromSafeback to summary
public static String setSystemPropertyFromSafe(final String nameValue)

Sets a system property from a name=value String. If no '=' is found, the property is assumed to be a Boolean flag with value true. Does nothing if a Security manager is in place which doesn't allow the operation.

Parameters
nameValue:String

the non-null name=value String

Returns:String

the found property name or null if the operation wasn't successful

Exceptions
IllegalArgumentException:
if nameValue is null