com.networknt.schema

Class JsonSchema

java.lang.Object

com.networknt.schema.BaseJsonValidator

com.networknt.schema.JsonSchema

All Implemented Interfaces:

JsonValidator, JsonSchemaWalker

public class JsonSchema
extends BaseJsonValidator

This is the core of json constraint implementation. It parses json constraint file and generates JsonValidators. The class is thread safe, once it is constructed, it can be used to validate multiple json data concurrently.

Field Summary

Fields inherited from class com.networknt.schema.BaseJsonValidator

applyDefaultsStrategy, failFast, parentSchema, schemaNode, schemaPath, validationContext

Fields inherited from interface com.networknt.schema.JsonValidator

AT_ROOT

Constructor Summary

Constructors

Constructor and Description
JsonSchema(ValidationContext validationContext, String schemaPath, URI currentUri, com.fasterxml.jackson.databind.JsonNode schemaNode, JsonSchema parent)
JsonSchema(ValidationContext validationContext, URI baseUri, com.fasterxml.jackson.databind.JsonNode schemaNode)
JsonSchema(ValidationContext validationContext, URI baseUri, com.fasterxml.jackson.databind.JsonNode schemaNode, boolean suppressSubSchemaRetrieval)

Method Summary

Modifier and Type	Method and Description
JsonSchema	findAncestor()
CollectorContext	getCollectorContext()
URI	getCurrentUri()
com.fasterxml.jackson.databind.JsonNode	getRefSchemaNode(String ref) Find the schema node for $ref attribute.
JsonValidator	getRequiredValidator()
Map<String,JsonValidator>	getValidators()
boolean	hasRequiredValidator()
void	initializeValidators() Initializes the validators' JsonSchema instances.
String	toString()
Set<ValidationMessage>	validate(com.fasterxml.jackson.databind.JsonNode node) START OF VALIDATE METHODS
Set<ValidationMessage>	validate(com.fasterxml.jackson.databind.JsonNode jsonNode, com.fasterxml.jackson.databind.JsonNode rootNode, String at) Validate the given JsonNode, the given node is the child node of the root node at given data path.
ValidationResult	validateAndCollect(com.fasterxml.jackson.databind.JsonNode node)
ValidationResult	walk(com.fasterxml.jackson.databind.JsonNode node, boolean shouldValidateSchema) Walk the JSON node
Set<ValidationMessage>	walk(com.fasterxml.jackson.databind.JsonNode node, com.fasterxml.jackson.databind.JsonNode rootNode, String at, boolean shouldValidateSchema) This is default implementation of walk method.
ValidationResult	walkAtNode(com.fasterxml.jackson.databind.JsonNode node, com.fasterxml.jackson.databind.JsonNode rootNode, String at, boolean shouldValidateSchema)

Methods inherited from class com.networknt.schema.BaseJsonValidator

buildValidationMessage, checkDiscriminatorMatch, debug, equals, fetchSubSchemaNode, getNodeFieldType, getParentSchema, getSchemaNode, getSchemaPath, getValidatorType, greaterThan, isPartOfOneOfMultipleType, lessThan, parseErrorCode, preloadJsonSchemas, registerAndMergeDiscriminator

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.networknt.schema.JsonValidator

preloadJsonSchema

Constructor Detail

JsonSchema

public JsonSchema(ValidationContext validationContext,
                  URI baseUri,
                  com.fasterxml.jackson.databind.JsonNode schemaNode)

JsonSchema

public JsonSchema(ValidationContext validationContext,
                  String schemaPath,
                  URI currentUri,
                  com.fasterxml.jackson.databind.JsonNode schemaNode,
                  JsonSchema parent)

JsonSchema

public JsonSchema(ValidationContext validationContext,
                  URI baseUri,
                  com.fasterxml.jackson.databind.JsonNode schemaNode,
                  boolean suppressSubSchemaRetrieval)

Method Detail

getCurrentUri

public URI getCurrentUri()

getRefSchemaNode

public com.fasterxml.jackson.databind.JsonNode getRefSchemaNode(String ref)

Find the schema node for $ref attribute.

Parameters:

ref - String

Returns:

JsonNode

findAncestor

public JsonSchema findAncestor()

validate

public Set<ValidationMessage> validate(com.fasterxml.jackson.databind.JsonNode node)

START OF VALIDATE METHODS

Specified by:

validate in interface JsonValidator

Overrides:

validate in class BaseJsonValidator

Parameters:

node - JsonNode

Returns:

A list of ValidationMessage if there is any validation error, or an empty list if there is no error.

validate

public Set<ValidationMessage> validate(com.fasterxml.jackson.databind.JsonNode jsonNode,
                                       com.fasterxml.jackson.databind.JsonNode rootNode,
                                       String at)

Description copied from interface: JsonValidator

Validate the given JsonNode, the given node is the child node of the root node at given data path.

Parameters:

jsonNode - JsonNode

rootNode - JsonNode

at - String

Returns:

A list of ValidationMessage if there is any validation error, or an empty list if there is no error.

validateAndCollect

public ValidationResult validateAndCollect(com.fasterxml.jackson.databind.JsonNode node)

walk

public ValidationResult walk(com.fasterxml.jackson.databind.JsonNode node,
                             boolean shouldValidateSchema)

Walk the JSON node

Parameters:

node - JsonNode

shouldValidateSchema - indicator on validation

Returns:

result of ValidationResult

walkAtNode

public ValidationResult walkAtNode(com.fasterxml.jackson.databind.JsonNode node,
                                   com.fasterxml.jackson.databind.JsonNode rootNode,
                                   String at,
                                   boolean shouldValidateSchema)

walk

public Set<ValidationMessage> walk(com.fasterxml.jackson.databind.JsonNode node,
                                   com.fasterxml.jackson.databind.JsonNode rootNode,
                                   String at,
                                   boolean shouldValidateSchema)

Description copied from class: BaseJsonValidator

This is default implementation of walk method. Its job is to call the validate method if shouldValidateSchema is enabled.

Specified by:

walk in interface JsonSchemaWalker

Overrides:

walk in class BaseJsonValidator

Parameters:

node - JsonNode

rootNode - JsonNode

at - String

shouldValidateSchema - boolean

Returns:

a set of validation messages if shouldValidateSchema is true.

getCollectorContext

public CollectorContext getCollectorContext()

toString

public String toString()

Overrides:

toString in class Object

hasRequiredValidator

public boolean hasRequiredValidator()

getRequiredValidator

public JsonValidator getRequiredValidator()

getValidators

public Map<String,JsonValidator> getValidators()

initializeValidators

public void initializeValidators()

Initializes the validators' JsonSchema instances. For avoiding issues with concurrency, in 1.0.49 the JsonSchema instances affiliated with validators were modified to no more preload the schema and lazy loading is used instead.

This comes with the issue that this way you cannot rely on validating important schema features, in particular $ref resolution at instantiation from JsonSchemaFactory.

By calling initializeValidators you can enforce preloading of the JsonSchema instances of the validators.