dk.heick.properties.types.custom

Class CustomPasswordEvaluator

java.lang.Object

dk.heick.properties.types.custom.CustomPasswordEvaluator

All Implemented Interfaces:

PasswordEvaluator, Serializable

Direct Known Subclasses:

DefaultPasswordEvaluator

public class CustomPasswordEvaluator
extends Object
implements PasswordEvaluator, Serializable

A custom implementation of the PasswordEvaluator containing all possibilities I can think of.
The DefaultPasswordEvaluator is a "typical" implmentation.

Since:

1.3

Author:

Frederik Heick

See Also:

DefaultPasswordEvaluator, Serialized Form

Constructor Summary

Constructors

Constructor and Description
CustomPasswordEvaluator(String acceptedAlphaCharacters, String acceptedNumericCharacters, String acceptedSpecialCharacters, int mininumLength, int maximumLength, int mininumLowercaseCharacters, int mininumUppercaseCharacters, int mininumNumericCharacters, int mininumSpecialCharacters) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	accept(String password) Evaluate if the password is "strong" enough.
protected boolean	doStringContainCharacter(String s, char aChar)
String	generatePassword() Generates a new password using the rules stated in the constructor.
String	generatePassword(String useAsAvailableSpecialCharacters) Generates a new password, with the ability to override what special characters to use in a new random password.
String	getAcceptedAlphaCharacters()
String	getAcceptedNumericCharacters()
String	getAcceptedSpecialCharacters()
String	getDescription() A description of the implementation of the PasswordEvaluator.
org.apache.commons.logging.Log	getLogger()
int	getMaximumLength()
int	getMininumLength()
int	getMininumLowercaseCharacters()
int	getMininumNumericCharacters()
int	getMininumSpecialCharacters()
int	getMininumUppercaseCharacters()
List<String>	getRestrictions() A list of strings describing the restrictions the evalutor has.

Methods inherited from class java.lang.Object

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

Constructor Detail

CustomPasswordEvaluator

public CustomPasswordEvaluator(String acceptedAlphaCharacters,
                               String acceptedNumericCharacters,
                               String acceptedSpecialCharacters,
                               int mininumLength,
                               int maximumLength,
                               int mininumLowercaseCharacters,
                               int mininumUppercaseCharacters,
                               int mininumNumericCharacters,
                               int mininumSpecialCharacters)

Constructor.

Parameters:

acceptedAlphaCharacters - a string containing the accepted alpha numeric characters in lower case.

acceptedNumericCharacters - a string containing the accepted numeric characters.

acceptedSpecialCharacters - a string containing the accepted special characters.

mininumLength - the minimum length of the password (inclusive), if less than or equal zero, no minimum length is imposed.

maximumLength - the maximum length of the password (inclusive), if less than or equal zero or if it is a lower value than minimum length, no maximum length is imposed.

mininumLowercaseCharacters - the minimum number of lower case characters the password must contain. If less than or equal zero than no minimum number of lower case characters restriction is imposed.

mininumUppercaseCharacters - the minimum number of upper case characters the password must contain. If less than or equal zero than no minimum number of upper case characters restriction is imposed.

mininumNumericCharacters - the minimum number of numeric characters the password must contain. If less than or equal zero than no minimum number of numeric characters restriction is imposed.

mininumSpecialCharacters - the minimum number of special characters the password must contain. If less than or equal zero than no minimum number of special characters restriction is imposed.

Method Detail

accept

public boolean accept(String password)

Description copied from interface: PasswordEvaluator

Evaluate if the password is "strong" enough.

Specified by:

accept in interface PasswordEvaluator

Parameters:

password - the password

Returns:

true if the password is strong enough otherwise false.

doStringContainCharacter

protected boolean doStringContainCharacter(String s,
                                           char aChar)

getDescription

public String getDescription()

Description copied from interface: PasswordEvaluator

A description of the implementation of the PasswordEvaluator.
This is normally a contantination of the restrictions divided by line break.

Specified by:

getDescription in interface PasswordEvaluator

Returns:

a description of the evaluator.

See Also:

PasswordEvaluator.getRestrictions()

getRestrictions

public List<String> getRestrictions()

Description copied from interface: PasswordEvaluator

A list of strings describing the restrictions the evalutor has.

Specified by:

getRestrictions in interface PasswordEvaluator

Returns:

a list of the restrictions.

getAcceptedAlphaCharacters

public String getAcceptedAlphaCharacters()

getAcceptedNumericCharacters

public String getAcceptedNumericCharacters()

getAcceptedSpecialCharacters

public String getAcceptedSpecialCharacters()

getMininumLength

public int getMininumLength()

getMaximumLength

public int getMaximumLength()

getMininumLowercaseCharacters

public int getMininumLowercaseCharacters()

getMininumNumericCharacters

public int getMininumNumericCharacters()

getMininumSpecialCharacters

public int getMininumSpecialCharacters()

getMininumUppercaseCharacters

public int getMininumUppercaseCharacters()

generatePassword

public final String generatePassword()

Generates a new password using the rules stated in the constructor.

Specified by:

generatePassword in interface PasswordEvaluator

Returns:

a random shuffled password using the rules stated in the constructor. If null than has not be able to constructor a password which accept will verify, something wrong with the rules in the constructor.

generatePassword

public final String generatePassword(String useAsAvailableSpecialCharacters)

Generates a new password, with the ability to override what special characters to use in a new random password.

Parameters:

useAsAvailableSpecialCharacters - override what special characters there shall be random choose from. Since some of the valid special character migth be to special for a new random password.

Returns:

a random shuffled password using the rules stated in the constructor. If null than has not be able to constructor a password which accept will verify, something wrong with the rules in the constructor or the overiden special characters.

getLogger

public org.apache.commons.logging.Log getLogger()