org.eel.kitchen.jsonschema.keyword

Class KeywordFactory

java.lang.Object

org.eel.kitchen.jsonschema.keyword.KeywordFactory

public final class KeywordFactory
extends Object

Factory to provide a set of KeywordValidator instances for a given schema

This class is only called once the schemas has been deemed valid, that is, after the following is true:

• the JSON document is not a JSON reference (ie, if it was, it has been resolved successfully);
• it is syntactically valid (see SyntaxValidator).

Field Summary

Fields

Modifier and Type	Field and Description
private Map<String,Class<? extends KeywordValidator>>	validators Our existing set of keyword validators

Constructor Summary

Constructors

Constructor and Description
KeywordFactory(KeywordBundle bundle) The only constructor

Method Summary

Methods

Modifier and Type	Method and Description
private static KeywordValidator	buildValidator(Class<? extends KeywordValidator> c, JsonNode schema) Build one validator
Set<KeywordValidator>	getValidators(JsonNode schema) Return the set of validators for a particular schema
private static KeywordValidator	invalidValidator(Class<? extends KeywordValidator> c, Exception e) Build an invalid validator in the event of instantiation failure

Methods inherited from class java.lang.Object

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

Field Detail

validators

private final Map<String,Class<? extends KeywordValidator>> validators

Our existing set of keyword validators

Constructor Detail

KeywordFactory

public KeywordFactory(KeywordBundle bundle)

The only constructor

Parameters:

bundle - The keyword bundle to use

Method Detail

getValidators

public Set<KeywordValidator> getValidators(JsonNode schema)

Return the set of validators for a particular schema

Parameters:

schema - the schema as a JsonNode

Returns:

the set of validators

buildValidator

private static KeywordValidator buildValidator(Class<? extends KeywordValidator> c,
                              JsonNode schema)

Build one validator

This is done by reflection. Remember that the contract is to have a constructor which takes a JsonNode as an argument.

If instantiation fails for whatever reason, an "invalid validator" is returned which always fails.

Parameters:

c - the keyword validator class

schema - the schema

Returns:

the instantiated keyword validator

See Also:

invalidValidator(Class, Exception)

invalidValidator

private static KeywordValidator invalidValidator(Class<? extends KeywordValidator> c,
                                Exception e)

Build an invalid validator in the event of instantiation failure

Parameters:

e - the exception raised by the instantiation attempt

Returns:

a keyword validator which always fails