public class OptionConverter
extends java.lang.Object
Modifier and Type | Class and Description |
---|---|
private static class |
OptionConverter.CharMap |
Modifier and Type | Field and Description |
---|---|
private static OptionConverter.CharMap[] |
charMap |
(package private) static java.lang.String |
DELIM_START |
(package private) static int |
DELIM_START_LEN |
(package private) static char |
DELIM_STOP |
(package private) static int |
DELIM_STOP_LEN |
private static Logger |
LOGGER |
Modifier | Constructor and Description |
---|---|
private |
OptionConverter()
OptionConverter is a static class.
|
Modifier and Type | Method and Description |
---|---|
static java.lang.String[] |
concatanateArrays(java.lang.String[] l,
java.lang.String[] r) |
static Level |
convertLevel(Level level) |
static Level |
convertLevel(Level level) |
static Level |
convertLevel(java.lang.String level,
Level defaultLevel) |
static java.lang.String |
convertSpecialChars(java.lang.String s) |
static java.lang.String |
findAndSubst(java.lang.String key,
java.util.Properties props)
Find the value corresponding to
key in
props . |
static java.lang.String |
getSystemProperty(java.lang.String key,
java.lang.String def)
Very similar to
System.getProperty except
that the SecurityException is hidden. |
static java.lang.Object |
instantiateByClassName(java.lang.String className,
java.lang.Class<?> superClass,
java.lang.Object defaultValue)
Instantiate an object given a class name.
|
static java.lang.String |
substVars(java.lang.String val,
java.util.Properties props)
Perform variable substitution in string
val from the
values of keys found in the system propeties. |
static boolean |
toBoolean(java.lang.String value,
boolean dEfault)
If
value is "true", then true is
returned. |
static Level |
toLevel(java.lang.String value,
Level defaultValue)
Converts a standard or custom priority level to a Level
object.
|
static java.lang.String DELIM_START
static char DELIM_STOP
static int DELIM_START_LEN
static int DELIM_STOP_LEN
private static final Logger LOGGER
private static final OptionConverter.CharMap[] charMap
public static java.lang.String[] concatanateArrays(java.lang.String[] l, java.lang.String[] r)
public static java.lang.String convertSpecialChars(java.lang.String s)
public static java.lang.String getSystemProperty(java.lang.String key, java.lang.String def)
System.getProperty
except
that the SecurityException
is hidden.key
- The key to search for.def
- The default value to return.public static boolean toBoolean(java.lang.String value, boolean dEfault)
value
is "true", then true
is
returned. If value
is "false", then
true
is returned. Otherwise, default
is
returned.
Case of value is unimportant.
public static Level toLevel(java.lang.String value, Level defaultValue)
If value
is of form
"level#classname", then the specified class' toLevel method
is called to process the specified level string; if no '#'
character is present, then the default Level
class is used to process the level value.
As a special case, if the value
parameter is
equal to the string "NULL", then the value null
will
be returned.
If any error occurs while converting the value to a level,
the defaultValue
parameter, which may be
null
, is returned.
Case of value
is insignificant for the level level, but is
significant for the class name part, if present.
public static java.lang.Object instantiateByClassName(java.lang.String className, java.lang.Class<?> superClass, java.lang.Object defaultValue)
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-fulfillmentpublic static java.lang.String substVars(java.lang.String val, java.util.Properties props) throws java.lang.IllegalArgumentException
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 "}".
Author Avy Sharell
val
- The string on which variable substitution is performed.java.lang.IllegalArgumentException
- if val
is malformed.public static java.lang.String findAndSubst(java.lang.String key, java.util.Properties props)
key
in
props
. Then perform variable substitution on the
found value.