org.eel.kitchen.jsonschema.util.jackson

Class CustomJsonNodeFactory

java.lang.Object

com.fasterxml.jackson.databind.node.JsonNodeFactory

org.eel.kitchen.jsonschema.util.jackson.CustomJsonNodeFactory

All Implemented Interfaces:

Serializable

public final class CustomJsonNodeFactory
extends JsonNodeFactory

Custom JsonNodeFactory and ObjectMapper

Jackson's default node factory and mapper fall short of conformant JSON Schema processing on two points:

• for floating point instances, double is used by default; however, neither the JsonNodeFactory and ObjectMapper:
  • it uses DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS when creating the mapper; this allows to not lose any scale or precision on arbitrarily large floating point instances;
  • it overrides JsonNodeFactory.numberNode(BigDecimal) to strip any final zeroes and generates a (precision-dependent) integer node if the resulting decimal part is empty.

  This class also uses custom implementations for ObjectNode and ArrayNode.

See Also:

BigDecimal.stripTrailingZeros(), BigDecimal.scale(), Serialized Form

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.node.JsonNodeFactory

instance

Method Summary

Methods

Modifier and Type	Method and Description
static ObjectNode	emptyObject() Return a statically created empty object
static JsonNodeFactory	getInstance() Get the only instance of the class
static ObjectMapper	getMapper() Get the embedded ObjectMapper
NumericNode	numberNode(BigDecimal v)
NumericNode	numberNode(BigInteger v)
NumericNode	numberNode(byte v)
ValueNode	numberNode(Byte value)
NumericNode	numberNode(double v)
ValueNode	numberNode(Double value)
NumericNode	numberNode(float v)
ValueNode	numberNode(Float value)
NumericNode	numberNode(int v)
ValueNode	numberNode(Integer value)
NumericNode	numberNode(long v)
ValueNode	numberNode(Long value)
NumericNode	numberNode(short v)
ValueNode	numberNode(Short value)

Methods inherited from class com.fasterxml.jackson.databind.node.JsonNodeFactory

arrayNode, binaryNode, binaryNode, booleanNode, nullNode, objectNode, POJONode, textNode, withExactBigDecimals

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static JsonNodeFactory getInstance()

Get the only instance of the class

Returns:

the factory

getMapper

public static ObjectMapper getMapper()

Get the embedded ObjectMapper

Returns:

the mapper

emptyObject

public static ObjectNode emptyObject()

Return a statically created empty object

WARNING: this instance is mutable, but please don't do that!

Returns:

an ObjectNode

numberNode

public NumericNode numberNode(byte v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Byte value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(short v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Short value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(int v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Integer value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(long v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Long value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(BigInteger v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(float v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Float value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(double v)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public ValueNode numberNode(Double value)

Overrides:

numberNode in class JsonNodeFactory

numberNode

public NumericNode numberNode(BigDecimal v)

Overrides:

numberNode in class JsonNodeFactory