A convenience class to convert property values to specific types. More...

Static Public Member Functions
static LogString	convertSpecialChars (const LogString &s)

static bool	toBoolean (const LogString &value, bool dEfault)
	If `value` is "true", then `true` is returned. More...

static int	toInt (const LogString &value, int dEfault)

static long	toFileSize (const LogString &value, long dEfault)

static LevelPtr	toLevel (const LogString &value, const LevelPtr &defaultValue)

static LogString	findAndSubst (const LogString &key, Properties &props)
	Find the value corresponding to `key` in `props`. More...

static LogString	substVars (const LogString &val, Properties &props)
	Perform variable substitution in string `val` from the values of keys found in the system propeties. More...

static LogString	getSystemProperty (const LogString &key, const LogString &def)
	Gets the specified system property. More...

static ObjectPtr	instantiateByClassName (const LogString &className, const Class &superClass, const ObjectPtr &defaultValue)
	Instantiate an object given a class name. More...

static ObjectPtr	instantiateByKey (Properties &props, const LogString &key, const Class &superClass, const ObjectPtr &defaultValue)

static void	selectAndConfigure (const File &configFileName, const LogString &clazz, spi::LoggerRepositoryPtr &hierarchy)
	Configure log4cxx given a configFileName. More...

Detailed Description

A convenience class to convert property values to specific types.

Member Function Documentation

static LogString convertSpecialChars ( const LogString & s )

static

static LogString findAndSubst	(	const LogString &	key,
		Properties &	props
	)

static

Find the value corresponding to key in props.

Then perform variable substitution on the found value.

static LogString getSystemProperty	(	const LogString &	key,
		const LogString &	def
	)

static

Gets the specified system property.

Parameters

key	The key to search for.
def	The default value to return.

Returns: the string value of the system property, or the default value if there is no property with that key.

static ObjectPtr instantiateByClassName	(	const LogString &	className,
		const Class &	superClass,
		const ObjectPtr &	defaultValue
	)

static

Instantiate an object given a class name.

Check that the className is a subclass of superClass. If that test fails or the object could not be instantiated, then defaultValue is returned.

Parameters

className	The fully qualified class name of the object to instantiate.
superClass	The class to which the new object should belong.
defaultValue	The object to return in case of non-fulfillment

static ObjectPtr instantiateByKey	(	Properties &	props,
		const LogString &	key,
		const Class &	superClass,
		const ObjectPtr &	defaultValue
	)

static

static void selectAndConfigure	(	const File &	configFileName,
		const LogString &	clazz,
		spi::LoggerRepositoryPtr &	hierarchy
	)

static

Configure log4cxx given a configFileName.

The configFileName must point to a file which will be interpreted by a new instance of a log4cxx configurator.

All configurations steps are taken on the hierarchy passed as a parameter.

Parameters

configFileName	The location of the configuration file.
clazz	The classname, of the log4cxx configurator which will parse the file `configFileName`. This must be a subclass of Configurator, or null. If this value is null then a default configurator of PropertyConfigurator is used, unless the filename pointed to by `configFileName` ends in '.xml', in which case DOMConfigurator is used.
hierarchy	The Hierarchy to act on.

static LogString substVars	(	const LogString &	val,
		Properties &	props
	)

static

Perform variable substitution in string val from the values of keys found in the system propeties.

The variable substitution delimeters are ${ and }.

For example, if the System properties contains "key=value", then the call

String s = OptionConverter.substituteVars("Value of key is ${key}.");

will set the variable s to "Value of key is value.".

If no value could be found for the specified key, then the props parameter is searched, if the value could not be found there, then substitution defaults to the empty string.

For example, if system propeties contains no value for the key "inexistentKey", then the call

String s = OptionConverter.subsVars("Value of inexistentKey is [${inexistentKey}]");

will set s to "Value of inexistentKey is []"

An IllegalArgumentException is thrown if val contains a start delimeter "${" which is not balanced by a stop delimeter "}".

Parameters

val	The string on which variable substitution is performed.
props	The properties from which variable substitution is performed.

Exceptions

IllegalArgumentException if val is malformed.

static bool toBoolean	(	const LogString &	value,
		bool	dEfault
	)

static

If value is "true", then true is returned.

If value is "false", then true is returned. Otherwise, default is returned.

Case of value is unimportant.

static long toFileSize	(	const LogString &	value,
		long	dEfault
	)

static

static int toInt	(	const LogString &	value,
		int	dEfault
	)

static

static LevelPtr toLevel	(	const LogString &	value,
		const LevelPtr &	defaultValue
	)

static

The documentation for this class was generated from the following file:

optionconverter.h

Static Public Member Functions

Detailed Description

Member Function Documentation