org.apache.wiki.ui
Class InputValidator

java.lang.Object
  org.apache.wiki.ui.InputValidator

public final class InputValidator
extends Object

Provides basic validation services for HTTP parameters. Three standard validators are provided: email address, identifier and standard input. Standard input validator will reject any HTML-like input, and any of a number of special characters. ID validator rejects HTML and quoted strings, and a couple of special characters.

Since:

2.3.54

Field Summary

static int	EMAIL Input validator for e-mail addresses.
protected static Pattern	EMAIL_PATTERN
static int	ID
protected static Pattern	ID_PATTERN Used when checking against IDs such as a full name when saving groups.
static int	STANDARD Standard input validator.
protected static Pattern	UNSAFE_PATTERN

Constructor Summary

InputValidator(String form, WikiContext context)
Constructs a new input validator for a specific form and wiki session.

Method Summary

static boolean	isBlank(String input) Returns true if a supplied string is null or blank
boolean	validate(String input, String label, int type) Validates a string against a particular pattern type: e-mail address, standard HTML input, etc.
boolean	validateNotNull(String input, String label) Validates a string against the STANDARD validator and additionally checks that the value is not null or blank.
boolean	validateNotNull(String input, String label, int type) Validates a string against a particular pattern type and additionally checks that the value is not null or blank.

Methods inherited from class java.lang.Object

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

Field Detail

STANDARD

public static final int STANDARD

Standard input validator.

See Also:

Constant Field Values

EMAIL

public static final int EMAIL

Input validator for e-mail addresses.

See Also:

Constant Field Values

ID

public static final int ID

Since:

2.4.82

See Also:

Constant Field Values

EMAIL_PATTERN

protected static final Pattern EMAIL_PATTERN

UNSAFE_PATTERN

protected static final Pattern UNSAFE_PATTERN

ID_PATTERN

protected static final Pattern ID_PATTERN

Used when checking against IDs such as a full name when saving groups.

Since:

2.4.82

Constructor Detail

InputValidator

public InputValidator(String form,
                      WikiContext context)

Constructs a new input validator for a specific form and wiki session. When validation errors are detected, they will be added to the wiki session's messages.

Parameters:

form - the ID or name of the form this validator should be associated with

context - the wiki context

Method Detail

validateNotNull

public boolean validateNotNull(String input,
                               String label)

Validates a string against the STANDARD validator and additionally checks that the value is not null or blank.

Parameters:

input - the string to validate

label - the label for the string or field ("E-mail address")

Returns:

returns true if valid, false otherwise

validateNotNull

public boolean validateNotNull(String input,
                               String label,
                               int type)

Validates a string against a particular pattern type and additionally checks that the value is not null or blank. Delegates to validate(String, String, int).

Parameters:

input - the string to validate

label - the label for the string or field ("E-mail address")

type - the pattern type to use (e.g., STANDARD, EMAIL.

Returns:

returns true if valid, false otherwise

validate

public boolean validate(String input,
                        String label,
                        int type)

Validates a string against a particular pattern type: e-mail address, standard HTML input, etc. Note that a blank or null string will always validate.

Parameters:

input - the string to validate

label - the label for the string or field ("E-mail address")

type - the target pattern to validate against (STANDARD, EMAIL)

Returns:

returns true if valid, false otherwise

isBlank

public static boolean isBlank(String input)

Returns true if a supplied string is null or blank

Parameters:

input - the string to check

Returns:

true if null or blank (zero-length); false otherwise