Static Public Member Functions | |
static bool | toBoolean (const String &value, bool dEfault) |
static String | findAndSubst (const String &key, Properties &props) |
static String | substVars (const String &val, Properties &props) |
static String | getSystemProperty (const String &key, const String &def) |
static ObjectPtr | instantiateByClassName (const String &className, const Class &superClass, const ObjectPtr &defaultValue) |
static void | selectAndConfigure (const String &configFileName, const String &clazz, spi::LoggerRepositoryPtr &hierarchy) |
String findAndSubst | ( | const String & | key, | |
Properties & | props | |||
) | [static] |
Find the value corresponding to key
in props
. Then perform variable substitution on the found value.
String getSystemProperty | ( | const String & | key, | |
const String & | def | |||
) | [static] |
key | The key to search for. | |
def | The default value to return. |
ObjectPtr instantiateByClassName | ( | const String & | 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.
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 |
void selectAndConfigure | ( | const String & | configFileName, | |
const String & | 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.
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. |
String substVars | ( | const String & | 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 "}".
val | The string on which variable substitution is performed. | |
props | The properties from which variable substitution is performed. |
IllegalArgumentException | if val is malformed. |
bool toBoolean | ( | const String & | 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.