Method Detail

• 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 - the name of the system property.

  Returns:

  value of the Boolean system property or false

• public static Integer getIntegerSafe(String name, Integer def)

  Retrieves an Integer System property

  Parameters:

  name - the name of the system property.

  def - the default value

  Returns:

  value of the Integer system property or the default value

• public static Long getLongSafe(String name, Long def)

  Retrieves an Long System property

  Parameters:

  name - the name of the system property.

  def - the default value

  Returns:

  value of the Long system property or the default value

• 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 - the name of the system property.

  defaultValue - a default value.

  Returns:

  value of the system property or the default value

• 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 - the name of the system property.

  Returns:

  value of the system property or null

• public static String setSystemPropertyFrom(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.

  throws:

  IllegalArgumentException if nameValue is null

  Parameters:

  nameValue - the non-null name=value String

  Returns:

  the found name

• public static String setSystemPropertyFromSafe(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.

  throws:

  IllegalArgumentException if nameValue is null

  Parameters:

  nameValue - the non-null name=value String

  Returns:

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