org.keycloak.validate

Class AbstractSimpleValidator

java.lang.Object

org.keycloak.validate.AbstractSimpleValidator

All Implemented Interfaces:

Provider, ProviderFactory<Validator>, SimpleValidator, Validator, ValidatorFactory

Direct Known Subclasses:

AbstractNumberValidator, AbstractStringValidator

public abstract class AbstractSimpleValidator
extends Object
implements SimpleValidator

Base class for arbitrary value type validators. Functionality covered in this base class:

• accepts supported type, collection of supported type.
• behavior around null and empty values is controlled by IGNORE_EMPTY_VALUE configuration option which is boolean. Error should be produced for them by default, but they should be ignored if that option is true. Logic must be implemented in skipValidation(Object, ValidatorConfig).

Author:

Vlastimil Elias

Field Summary

Fields

Modifier and Type	Field and Description
static String	IGNORE_EMPTY_VALUE Config option which allows to switch validator to ignore null, empty string and even blank string value - not to produce error for them.

Constructor Summary

Constructors

Constructor and Description
AbstractSimpleValidator()

Method Summary

Modifier and Type	Method and Description
protected abstract void	doValidate(Object value, String inputHint, ValidationContext context, ValidatorConfig config) Validate type, format, range of the value etc.
protected boolean	isIgnoreEmptyValuesConfigured(ValidatorConfig config) Default implementation only looks for IGNORE_EMPTY_VALUE configuration option.
protected abstract boolean	skipValidation(Object value, ValidatorConfig config) Decide if validation of individual value should be skipped or not.
ValidationContext	validate(Object input, String inputHint, ValidationContext context, ValidatorConfig config) Validates the given input with an additional inputHint and config.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.keycloak.validate.SimpleValidator

close, create, init, postInit

Methods inherited from interface org.keycloak.validate.Validator

validate, validate, validate, validate, validate, validate

Methods inherited from interface org.keycloak.validate.ValidatorFactory

validateConfig

Methods inherited from interface org.keycloak.provider.ProviderFactory

getId, order

Field Detail

IGNORE_EMPTY_VALUE

public static final String IGNORE_EMPTY_VALUE

Config option which allows to switch validator to ignore null, empty string and even blank string value - not to produce error for them. Used eg. in UserProfile where we have optional attributes and required concern is checked by separate validators.

See Also:

Constant Field Values

Constructor Detail

AbstractSimpleValidator

public AbstractSimpleValidator()

Method Detail

validate

public ValidationContext validate(Object input,
                                  String inputHint,
                                  ValidationContext context,
                                  ValidatorConfig config)

Description copied from interface: Validator

Validates the given input with an additional inputHint and config.

Specified by:

validate in interface Validator

Parameters:

input - the value to validate

inputHint - an optional input hint to guide the validation

context - the validation context

config - parameterization for the current validation

Returns:

the validation context with the outcome of the validation

doValidate

protected abstract void doValidate(Object value,
                                   String inputHint,
                                   ValidationContext context,
                                   ValidatorConfig config)

Validate type, format, range of the value etc. Always use ValidationContext.addError(ValidationError) to report error to the user! Can be called multiple time for one validation if input is Collection.

Parameters:

value - to be validated, never null

inputHint -

context - for the validation. Add errors into it.

config - of the validation if provided

See Also:

skipValidation(Object, ValidatorConfig)

skipValidation

protected abstract boolean skipValidation(Object value,
                                          ValidatorConfig config)

Decide if validation of individual value should be skipped or not. It should be controlled by IGNORE_EMPTY_VALUE configuration option, see isIgnoreEmptyValuesConfigured(ValidatorConfig).

Parameters:

value - currently validated we make decision for

config - to look for options in

Returns:

true if validation should be skipped for this value - doValidate(Object, String, ValidationContext, ValidatorConfig) is not called in this case.

See Also:

doValidate(Object, String, ValidationContext, ValidatorConfig)

isIgnoreEmptyValuesConfigured

protected boolean isIgnoreEmptyValuesConfigured(ValidatorConfig config)

Default implementation only looks for IGNORE_EMPTY_VALUE configuration option.

Parameters:

config - to get option from

Returns: