C# Class Commons.Collections.ExtendedProperties

This class extends normal Java properties by adding the possibility to use the same key many times concatenating the value strings instead of overwriting them.

The Extended Properties syntax is explained here:

Each property has the syntax key = value
The key may use any character but the equal sign '='.
value may be separated on different lines if a backslash is placed at the end of the line that continues below.
If value is a list of strings, each token is separated by a comma ','.
Commas in each token are escaped placing a backslash right before the comma.
If a key is used more than once, the values are appended like if they were on the same line separated with commas.
Blank lines and lines starting with character '#' are skipped.
If a property is named "include" (or whatever is defined by setInclude() and getInclude() and the value of that property is the full path to a file on disk, that file will be included into the ConfigurationsRepository. You can also pull in files relative to the parent configuration file. So if you have something like the following: include = additional.properties Then "additional.properties" is expected to be in the same directory as the parent configuration file. Duplicate name values will be replaced, so be careful.

Here is an example of a valid extended properties file:

 # lines starting with # are comments # This is the simplest property key = value # A long property may be separated on multiple lines longvalue = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa # This is a property with many tokens tokens_on_a_line = first token, second token # This sequence generates exactly the same result tokens_on_multiple_lines = first token tokens_on_multiple_lines = second token # commas may be escaped in tokens commas.excaped = Hi\, what'up?

NOTE: this class has not been written for performance nor low memory usage. In fact, it's way slower than it could be and generates too much memory garbage. But since performance is not an issue during intialization (and there is not much time to improve it), I wrote it this way. If you don't like it, go ahead and tune it up!

Inheritance: System.Collections.Hashtable

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Protected Properties

Property	Type	Description
basePath	String
file	String
fileSeparator	String
include	String
isInitialized	bool
keysAsListed	System.Collections.ArrayList

Public Methods

Method	Description
AddProperty ( String key, Object token ) : void	Add a property to the configuration. If it already exists then the value stated here will be added to the configuration entry. For example, if * resource.loader = file * is already present in the configuration and you * addProperty("resource.loader", "classpath") * Then you will end up with a Vector like the following: * ["file", "classpath"] *
ClearProperty ( String key ) : void	Clear a property in the configuration. *
Combine ( ExtendedProperties c ) : void	Combines an existing Hashtable with this Hashtable. * Warning: It will overwrite previous entries without warning. *
ConvertProperties ( ExtendedProperties p ) : ExtendedProperties	Convert a standard properties class into a configuration class.
ExtendedProperties ( ) : System	Creates an empty extended properties object.
ExtendedProperties ( String file ) : System	Creates and loads the extended properties from the specified file.
ExtendedProperties ( String file, String defaultFile ) : System	Creates and loads the extended properties from the specified file.
GetBoolean ( String key, System.Boolean defaultValue ) : System.Boolean	Get a boolean associated with the given configuration key. *
GetBoolean ( String key ) : bool	Get a boolean associated with the given configuration key. *
GetByte ( String key, Byte defaultValue ) : Byte	Get a byte associated with the given configuration key. *
GetByte ( String key ) : sbyte	Get a byte associated with the given configuration key. *
GetByte ( String key, sbyte defaultValue ) : sbyte	Get a byte associated with the given configuration key. *
GetDouble ( String key ) : Double	Get a double associated with the given configuration key. *
GetDouble ( String key, Double defaultValue ) : Double	Get a double associated with the given configuration key. *
GetFloat ( String key, System.Single defaultValue ) : System.Single	Get a float associated with the given configuration key. *
GetFloat ( String key ) : float	Get a float associated with the given configuration key. *
GetInt ( String name ) : Int32	The purpose of this method is to get the configuration resource with the given name as an integer. *
GetInt ( String name, int def ) : Int32	The purpose of this method is to get the configuration resource with the given name as an integer, or a default value. *
GetInteger ( String key ) : Int32	Get a int associated with the given configuration key. *
GetInteger ( String key, Int32 defaultValue ) : Int32	Get a int associated with the given configuration key. *
GetKeys ( String prefix ) : IEnumerable	Get the list of the keys contained in the configuration repository. * Get the list of the keys contained in the configuration repository that match the specified prefix. *
GetLong ( String key ) : System.Int64	Get a long associated with the given configuration key. *
GetLong ( String key, System.Int64 defaultValue ) : System.Int64	Get a long associated with the given configuration key. *
GetProperties ( String key ) : Hashtable	Get a list of properties associated with the given configuration key. *
GetProperties ( String key, Hashtable defaultProps ) : Hashtable	Get a list of properties associated with the given configuration key. *
GetProperty ( String key ) : Object	Gets a property from the configuration. *
GetString ( String key ) : String	Get a string associated with the given configuration key. *
GetString ( String key, String defaultValue ) : String	Get a string associated with the given configuration key. *
GetStringArray ( String key ) : String[]	Get an array of strings associated with the given configuration key. *
GetStringList ( String key ) : List	Gets the string list.
GetVector ( String key ) : ArrayList	Get a Vector of strings associated with the given configuration key. *
GetVector ( String key, ArrayList defaultValue ) : ArrayList	Get a Vector of strings associated with the given configuration key. *
IsInitialized ( ) : bool	Private initializer method that sets up the generic resources. Indicate to client code whether property resources have been initialized or not.
Load ( Stream input ) : void
Load ( Stream input, String encoding ) : void	Load the properties from the given input stream and using the specified encoding.
Save ( TextWriter output, String Header ) : void	Save the properties to the given outputStream.
SetProperty ( String key, Object value ) : void	Set a property, this will replace any previously set values. Set values is implicitly a call to clearProperty(key), addProperty(key,value).
Subset ( String prefix ) : ExtendedProperties	Create an ExtendedProperties object that is a subset of this one. Take into account duplicate keys by using the setProperty() in ExtendedProperties. *
TestBoolean ( String value ) : String	Test whether the string represent by value maps to a boolean value or not. We will allow `true`, `on`, and `yes` for a `true` boolean value, and `false`, `off`, and `no` for `false` boolean values. Case of value to test for boolean status is ignored. *
ToString ( ) : String	Display the configuration for debugging purposes.

Private Methods

Method	Description
AddPropertyDirect ( String key, Object obj ) : void	Adds a key/value pair to the map. This routine does no magic morphing. It ensures the keyList is maintained *
AddStringProperty ( String key, String token ) : void	Sets a string property w/o checking for commas - used internally when a property has been broken up into strings that could contain escaped commas to prevent the inadvertent vectorization. Thanks to Leon Messerschmidt for this one.
ValueToString ( Object value ) : String
WriteKeyOutput ( TextWriter textWriter, String key, String value ) : void

Method Details

AddProperty() public method

Add a property to the configuration. If it already exists then the value stated here will be added to the configuration entry. For example, if * resource.loader = file * is already present in the configuration and you * addProperty("resource.loader", "classpath") * Then you will end up with a Vector like the following: * ["file", "classpath"] *

public AddProperty ( String key, Object token ) : void
key	String
token	Object
return	void

ClearProperty() public method

Clear a property in the configuration. *

public ClearProperty ( String key ) : void
key	String	key to remove along with corresponding value. /// ///
return	void

Combine() public method

Combines an existing Hashtable with this Hashtable. * Warning: It will overwrite previous entries without warning. *

public Combine ( ExtendedProperties c ) : void
c	ExtendedProperties	ExtendedProperties /// ///
return	void

ConvertProperties() public static method

Convert a standard properties class into a configuration class.

public static ConvertProperties ( ExtendedProperties p ) : ExtendedProperties
p	ExtendedProperties	properties object to convert into a ExtendedProperties object.
return	ExtendedProperties

ExtendedProperties() public method

Creates an empty extended properties object.

public ExtendedProperties ( ) : System
return	System

ExtendedProperties() public method

Creates and loads the extended properties from the specified file.

public ExtendedProperties ( String file ) : System
file	String	A String.
return	System

ExtendedProperties() public method

Creates and loads the extended properties from the specified file.

public ExtendedProperties ( String file, String defaultFile ) : System
file	String	A String.
defaultFile	String	File to load defaults from.
return	System

GetBoolean() public method

Get a boolean associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Boolean. /// ///

public GetBoolean ( String key, System.Boolean defaultValue ) : System.Boolean
key	String	The configuration key. ///
defaultValue	System.Boolean	The default value. ///
return	System.Boolean

GetBoolean() public method

Get a boolean associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Boolean. /// ///

public GetBoolean ( String key ) : bool
key	String	The configuration key. ///
return	bool

GetByte() public method

Get a byte associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Byte. ///

public GetByte ( String key, Byte defaultValue ) : Byte
key	String	The configuration key. ///
defaultValue	Byte	The default value. ///
return	Byte

GetByte() public method

Get a byte associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Byte. ///

public GetByte ( String key ) : sbyte
key	String	The configuration key. ///
return	sbyte

GetByte() public method

Get a byte associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Byte. ///

public GetByte ( String key, sbyte defaultValue ) : sbyte
key	String	The configuration key. ///
defaultValue	sbyte	The default value. ///
return	sbyte

GetDouble() public method

Get a double associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Double. ///

public GetDouble ( String key ) : Double
key	String	The configuration key. ///
return	Double

GetDouble() public method

Get a double associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Double. ///

public GetDouble ( String key, Double defaultValue ) : Double
key	String	The configuration key. ///
defaultValue	Double	The default value. ///
return	Double

GetFloat() public method

Get a float associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Float. ///

public GetFloat ( String key, System.Single defaultValue ) : System.Single
key	String	The configuration key. ///
defaultValue	System.Single	The default value. ///
return	System.Single

GetFloat() public method

Get a float associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Float. ///

public GetFloat ( String key ) : float
key	String	The configuration key. ///
return	float

GetInt() public method

The purpose of this method is to get the configuration resource with the given name as an integer. *

public GetInt ( String name ) : Int32
name	String	The resource name. ///
return	System.Int32

GetInt() public method

The purpose of this method is to get the configuration resource with the given name as an integer, or a default value. *

public GetInt ( String name, int def ) : Int32
name	String	The resource name ///
def	int	The default value of the resource. ///
return	System.Int32

GetInteger() public method

Get a int associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Integer. ///

public GetInteger ( String key ) : Int32
key	String	The configuration key. ///
return	System.Int32

GetInteger() public method

Get a int associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Integer. ///

public GetInteger ( String key, Int32 defaultValue ) : Int32
key	String	The configuration key. ///
defaultValue	System.Int32	The default value. ///
return	System.Int32

GetKeys() public method

Get the list of the keys contained in the configuration repository. * Get the list of the keys contained in the configuration repository that match the specified prefix. *

public GetKeys ( String prefix ) : IEnumerable
prefix	String	The prefix to test against. ///
return	IEnumerable

GetLong() public method

Get a long associated with the given configuration key. *

is thrown if the key doesn't /// map to an existing object. /// is thrown if the key maps to an /// object that is not a Long. ///

public GetLong ( String key ) : System.Int64
key	String	The configuration key. ///
return	System.Int64

GetLong() public method

Get a long associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Long. ///

public GetLong ( String key, System.Int64 defaultValue ) : System.Int64
key	String	The configuration key. ///
defaultValue	System.Int64	The default value. ///
return	System.Int64

GetProperties() public method

Get a list of properties associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a String/Vector. /// if one of the tokens is /// malformed (does not contain an equals sign). /// ///

public GetProperties ( String key ) : Hashtable
key	String	The configuration key. ///
return	System.Collections.Hashtable

GetProperties() public method

Get a list of properties associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a String/Vector. /// if one of the tokens is /// malformed (does not contain an equals sign). /// ///

public GetProperties ( String key, Hashtable defaultProps ) : Hashtable
key	String	The configuration key. ///
defaultProps	System.Collections.Hashtable	Default property values. ///
return	System.Collections.Hashtable

GetProperty() public method

Gets a property from the configuration. *

public GetProperty ( String key ) : Object
key	String	property to retrieve ///
return	Object

GetString() public method

Get a string associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a String. /// ///

public GetString ( String key ) : String
key	String	The configuration key. ///
return	String

GetString() public method

Get a string associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a String. /// ///

public GetString ( String key, String defaultValue ) : String
key	String	The configuration key. ///
defaultValue	String	The default value. ///
return	String

GetStringArray() public method

Get an array of strings associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a String/Vector. /// ///

public GetStringArray ( String key ) : String[]
key	String	The configuration key. ///
return	String[]

GetStringList() public method

Gets the string list.

public GetStringList ( String key ) : List
key	String	The key.
return	List

GetVector() public method

Get a Vector of strings associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Vector. /// ///

public GetVector ( String key ) : ArrayList
key	String	The configuration key. ///
return	System.Collections.ArrayList

GetVector() public method

Get a Vector of strings associated with the given configuration key. *

is thrown if the key maps to an /// object that is not a Vector. /// ///

public GetVector ( String key, ArrayList defaultValue ) : ArrayList
key	String	The configuration key. ///
defaultValue	System.Collections.ArrayList	The default value. ///
return	System.Collections.ArrayList

IsInitialized() public method

Private initializer method that sets up the generic resources. Indicate to client code whether property resources have been initialized or not.

if there was an I/O problem.

public IsInitialized ( ) : bool
return	bool

Load() public method

public Load ( Stream input ) : void
input	Stream
return	void

Load() public method

Load the properties from the given input stream and using the specified encoding.

public Load ( Stream input, String encoding ) : void
input	Stream	An InputStream. ///
encoding	String	An encoding. ///
return	void

Save() public method

Save the properties to the given outputStream.

///

public Save ( TextWriter output, String Header ) : void
output	System.IO.TextWriter	An OutputStream. ///
Header	String	A String. ///
return	void

SetProperty() public method

Set a property, this will replace any previously set values. Set values is implicitly a call to clearProperty(key), addProperty(key,value).

public SetProperty ( String key, Object value ) : void
key	String
value	Object
return	void

Subset() public method

Create an ExtendedProperties object that is a subset of this one. Take into account duplicate keys by using the setProperty() in ExtendedProperties. *

public Subset ( String prefix ) : ExtendedProperties
prefix	String	prefix /// ///
return	ExtendedProperties

TestBoolean() public method

Test whether the string represent by value maps to a boolean value or not. We will allow true, on, and yes for a true boolean value, and false, off, and no for false boolean values. Case of value to test for boolean status is ignored. *

public TestBoolean ( String value ) : String
value	String	The value to test for boolean state. ///
return	String

ToString() public method

Display the configuration for debugging purposes.

public ToString ( ) : String
return	String

Property Details

basePath protected_oe property

Base path of the configuration file used to create this ExtendedProperties object.

protected String basePath
return	String

file protected_oe property

The file connected to this repository (holding comments and such).

protected String file
return	String

fileSeparator protected_oe property

File separator.

protected String fileSeparator
return	String

include protected_oe static_oe property

This is the name of the property that can point to other properties file for including other properties files.

protected static String include
return	String

isInitialized protected_oe property

Has this configuration been initialized.

protected bool isInitialized
return	bool

keysAsListed protected_oe property

These are the keys in the order they listed in the configuration file. This is useful when you wish to perform operations with configuration information in a particular order.

protected ArrayList,System.Collections keysAsListed
return	System.Collections.ArrayList