Module org.panteleyev.commons

Package org.panteleyev.commons.password

Class PasswordGenerator

java.lang.Object

org.panteleyev.commons.password.PasswordGenerator

public final class PasswordGenerator
extends Object

Implements password generation functionality.

The following characters are considered ambiguous from visual standpoint: I l O. They are excluded by default and can be included with generate(Set, int, boolean).

Password length must be greater than 4 in order to ensure all specified character sets can be present in the generated string. There is no upper limit for password length.

Instances of this class are thread safe and can be reused.

Constructor Summary

Constructors

Constructor	Description
PasswordGenerator()

Method Summary

Modifier and Type	Method	Description
String	generate(Set<PasswordCharacterSet> characterSets, int length)	Generates password and avoids ambiguous letters.
String	generate(Set<PasswordCharacterSet> characterSets, int length, boolean allowAmbiguousLetters)	Generates password.

Methods inherited from class java.lang.Object

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

Constructor Details

PasswordGenerator

public PasswordGenerator()

Method Details

generate

public String generate(Set<PasswordCharacterSet> characterSets,
 int length)

Generates password and avoids ambiguous letters.

Parameters:

characterSets - password character sets

length - password length

Returns:

password

Throws:

IllegalArgumentException - if no character sets are selected or password length < 4

generate

public String generate(Set<PasswordCharacterSet> characterSets,
 int length,
 boolean allowAmbiguousLetters)

Generates password.

Parameters:

characterSets - password character sets

length - password length

allowAmbiguousLetters - true if set of ambiguous letters should be included

Returns:

password

Throws:

IllegalArgumentException - if no character sets are selected or password length < 4