Package jodd.util

Class PropertiesUtil

java.lang.Object

jodd.util.PropertiesUtil

public class PropertiesUtil
extends Object

Misc java.util.Properties utils.

Constructor Summary

Constructors

Constructor	Description
PropertiesUtil()

Method Summary

Modifier and Type	Method	Description
static Properties	createFromFile(File file)	Create properties from the file.
static Properties	createFromFile(String fileName)	Create properties from the file.
static Properties	createFromString(String data)	Creates properties from string.
static String	getProperty(Map map, String key)	Returns String property from a map.
static String	getProperty(Map map, String key, String defaultValue)	Returns String property from a map.
static void	loadFromFile(Properties p, File file)	Loads properties from the file.
static void	loadFromFile(Properties p, String fileName)	Loads properties from the file.
static void	loadFromString(Properties p, String data)	Loads properties from string.
static void	resolveAllVariables(Properties prop)	Resolves all variables.
static String	resolveProperty(Map map, String key)	Returns property with resolved variables.
static Properties	subset(Properties p, String prefix, boolean stripPrefix)	Creates new Properties object from the original one, by copying those properties that have specified first part of the key name.
static void	writeToFile(Properties p, File file)	Writes properties to a file.
static void	writeToFile(Properties p, File file, String header)	Writes properties to a file.
static void	writeToFile(Properties p, String fileName)	Writes properties to a file.
static void	writeToFile(Properties p, String fileName, String header)	Writes properties to a file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PropertiesUtil

public PropertiesUtil()

Method Details

createFromFile

public static Properties createFromFile(String fileName)
                                 throws IOException

Create properties from the file.

Parameters:

fileName - properties file name to load

Throws:

IOException

createFromFile

public static Properties createFromFile(File file)
                                 throws IOException

Create properties from the file.

Parameters:

file - properties file to load

Throws:

IOException

loadFromFile

public static void loadFromFile(Properties p,
 String fileName)
                         throws IOException

Loads properties from the file. Properties are appended to the existing properties object.

Parameters:

p - properties to fill in

fileName - properties file name to load

Throws:

IOException

loadFromFile

public static void loadFromFile(Properties p,
 File file)
                         throws IOException

Loads properties from the file. Properties are appended to the existing properties object.

Parameters:

p - properties to fill in

file - file to read properties from

Throws:

IOException

writeToFile

public static void writeToFile(Properties p,
 String fileName)
                        throws IOException

Writes properties to a file.

Parameters:

p - properties to write to file

fileName - destination file name

Throws:

IOException

writeToFile

public static void writeToFile(Properties p,
 String fileName,
 String header)
                        throws IOException

Writes properties to a file.

Parameters:

p - properties to write to file

fileName - destination file name

header - optional header

Throws:

IOException

writeToFile

public static void writeToFile(Properties p,
 File file)
                        throws IOException

Writes properties to a file.

Parameters:

p - properties to write to file

file - destination file

Throws:

IOException

writeToFile

public static void writeToFile(Properties p,
 File file,
 String header)
                        throws IOException

Writes properties to a file.

Parameters:

p - properties to write to file

file - destination file

header - optional header

Throws:

IOException

createFromString

public static Properties createFromString(String data)
                                   throws IOException

Creates properties from string.

Throws:

IOException

loadFromString

public static void loadFromString(Properties p,
 String data)
                           throws IOException

Loads properties from string.

Throws:

IOException

subset

public static Properties subset(Properties p,
 String prefix,
 boolean stripPrefix)

Creates new Properties object from the original one, by copying those properties that have specified first part of the key name. Prefix may be optionally stripped during this process.

Parameters:

p - source properties, from which new object will be created

prefix - key names prefix

Returns:

subset properties

getProperty

public static String getProperty(Map map,
 String key)

Returns String property from a map. If key is not found, or if value is not a String, returns null. Mimics Property.getProperty but on map.

getProperty

public static String getProperty(Map map,
 String key,
 String defaultValue)

Returns String property from a map.

See Also:

• getProperty(java.util.Map, String)

resolveAllVariables

public static void resolveAllVariables(Properties prop)

Resolves all variables.

resolveProperty

public static String resolveProperty(Map map,
 String key)

Returns property with resolved variables.