Validate Event

This handler (com.rierino.handler.ValidationEventHandler) provides ability to check validity of event contents using different validator types.

Handler Parameters

Parameter	Definition	Example	Default
validator	Fully qualified class name for the validator to use	com.rierino.handler.util.validator.JsonSchemaValidator	-
validator.*	Additional parameters used by the validator class	state=schema	-

Following validators are available (which can be also used as validators within state managers):

JMESValidator

Validates input against a given "pattern". Pattern information can be provided as a handler or action event metadata parameter. Returns a "valid" flag in results.

JsonSchemaValidator

Validates input against a Json schema stored in a state manager. Uses the following handler parameters:

Parameter	Definition	Example	Default
validator.state	State manager with schema records.	-	schema
validator.version	Json schema version to use for validation.	-	V201909

Also uses the following action event metadata parameter:

Parameter	Definition	Example	Default
schema	Id of the schema record to use for current event validation.	product	-

Returns a "valid" flag as well as "validations" list of findings.

Actions

Validate

Checks validity of the event input payload using configured validator instance and returns results.

Field	Definition	Example	Default
inputElement	Json path in payload to use	parameters	-
outputElement	Json path in payload to return results	result	-

With event metadata parameters as:

Parameter	Definition	Example	Default
outputPattern	JMESPath expression to convert results	-	-
*	Additional parameters used by the validator class	pattern=(value='a')