Incredibly Fast Json Validator

IFJV is a Java-based tool designed for high-speed JSON validation using a predefined schema. This project is a demo version and does not include all potential features. It offers an efficient solution, using string-based validation for JSONs rather than relying on heavier structures.

Scalability

The validation algorithm operates with scalability close to O(n), where n represents the number of characters in the JSON string.

Schemas

IFJV schemas are similar to popular json validation schemas which are described in detail here. However, it doesn't support all of these features. To define schemas we use yaml files.

root instance types	is supported
array	true
boolean	true
const	false
enum	false
integer	true
number	true
object	true
string	true

Array Schema

keywords	is supported	is required
minItems	true	false
maxItems	true	false
items	true	true
uniqueItems	false	false
minContains	false	false
maxContains	false	false

Examples

type: array
items: number

type: array
items:
  type: number
  minimum: 0

Numbers Schemas (integer & number)

keywords	is supported
multipleOf	false
minimum	true
maximum	true
exclusiveMinimum	true
exclusiveMaximum	true

Examples

integer

type: number
minimum: 1
exclusiveMaximum: 2.5

Object Schema

keywords	is supported	is required
minProperties	false	false
maxProperties	false	false
properties	true	true
required	true	false
dependentRequired	true	false

Examples

type: object
properties:
  num: integer

type: object
properties:
  num:
    type: integer
    minimum: 0

String Schema

keywords	is supported
minLength	true
maxLength	true
pattern	false

Examples

string

type: string
minLength: 1

Author

@Patryk Likus

License

All rights reserved. If you want to use it, please contact me.