io.smallrye.openapi.runtime.io

Class JsonUtil

java.lang.Object

io.smallrye.openapi.runtime.io.JsonUtil

public final class JsonUtil
extends Object

Utilities methods for reading information from a Json Tree.

Author:

eric.wittmann@gmail.com

Method Summary

Modifier and Type	Method and Description
static com.fasterxml.jackson.databind.node.ArrayNode	arrayNode()
static BigDecimal	bigDecimalProperty(com.fasterxml.jackson.databind.JsonNode node, String propertyName) Extract a BigDecimal property from the given json tree.
static void	bigDecimalProperty(com.fasterxml.jackson.databind.node.ObjectNode node, String propertyName, BigDecimal propertyValue) Sets the value of a property for a given json node.
static Optional<Boolean>	booleanProperty(com.fasterxml.jackson.databind.JsonNode node, String propertyName) Extract a boolean property from the given json tree.
static void	booleanProperty(com.fasterxml.jackson.databind.node.ObjectNode node, String propertyName, Boolean propertyValue) Sets the value of a property for a given json node.
static <E extends Enum<E>> void	enumProperty(com.fasterxml.jackson.databind.node.ObjectNode node, String propertyName, E propertyValue) Sets the value of a property for a given json node.
static Integer	intProperty(com.fasterxml.jackson.databind.JsonNode node, String propertyName) Extract a integer property from the given json tree.
static void	intProperty(com.fasterxml.jackson.databind.node.ObjectNode node, String propertyName, Integer propertyValue) Sets the value of a property for a given json node.
static com.fasterxml.jackson.databind.node.ObjectNode	objectNode()
static Object	parseValue(String value) Parses an extension value.
static Object	readObject(com.fasterxml.jackson.databind.JsonNode node) Reads the node as a Java object.This is typically expected to be a literal of some sort, as in the case of default values and examples.
static Optional<List<Object>>	readObjectArray(com.fasterxml.jackson.databind.JsonNode node) Reads an object array.
static Optional<List<String>>	readStringArray(com.fasterxml.jackson.databind.JsonNode node) Reads a string array.
static Optional<Map<String,String>>	readStringMap(com.fasterxml.jackson.databind.JsonNode node) Reads a map of strings.
static String	stringProperty(com.fasterxml.jackson.databind.JsonNode node, String propertyName) Extract a string property from the given json tree.
static void	stringProperty(com.fasterxml.jackson.databind.node.ObjectNode node, String propertyName, String propertyValue) Sets the value of a property for a given json node.

Methods inherited from class java.lang.Object

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

Method Detail

objectNode

public static com.fasterxml.jackson.databind.node.ObjectNode objectNode()

arrayNode

public static com.fasterxml.jackson.databind.node.ArrayNode arrayNode()

stringProperty

public static String stringProperty(com.fasterxml.jackson.databind.JsonNode node,
                                    String propertyName)

Extract a string property from the given json tree. Returns null if no property exists or is not a text node.

Parameters:

node - JsonNode

propertyName - Property to extract

Returns:

String holding the value found for the property

stringProperty

public static void stringProperty(com.fasterxml.jackson.databind.node.ObjectNode node,
                                  String propertyName,
                                  String propertyValue)

Sets the value of a property for a given json node. If the value is null, then the property is not written.

Parameters:

node - ObjectNode

propertyName - Property to be set

propertyValue - Value to be set

enumProperty

public static <E extends Enum<E>> void enumProperty(com.fasterxml.jackson.databind.node.ObjectNode node,
                                                    String propertyName,
                                                    E propertyValue)

Sets the value of a property for a given json node. If the value is null, then the property is not written.

Type Parameters:

E - Type of the property value

Parameters:

node - ObjectNode

propertyName - Property to be set

propertyValue - Value to be set

booleanProperty

public static Optional<Boolean> booleanProperty(com.fasterxml.jackson.databind.JsonNode node,
                                                String propertyName)

Extract a boolean property from the given json tree. Returns null if no property exists or is not a boolean node.

Parameters:

node - JsonNode

propertyName - Property to extract

Returns:

Boolean containing the value extracted

booleanProperty

public static void booleanProperty(com.fasterxml.jackson.databind.node.ObjectNode node,
                                   String propertyName,
                                   Boolean propertyValue)

Sets the value of a property for a given json node. If the value is null, then the property is not written.

Parameters:

node - ObjectNode

propertyName - Property to be set

propertyValue - Boolean value to be set

intProperty

public static Integer intProperty(com.fasterxml.jackson.databind.JsonNode node,
                                  String propertyName)

Extract a integer property from the given json tree. Returns null if no property exists or is not a boolean node.

Parameters:

node - JsonNode

propertyName - Property to extract

Returns:

Integer containing the extracted value

intProperty

public static void intProperty(com.fasterxml.jackson.databind.node.ObjectNode node,
                               String propertyName,
                               Integer propertyValue)

Sets the value of a property for a given json node. If the value is null, then the property is not written.

Parameters:

node - ObjectNode

propertyName - Property to be set

propertyValue - Integer value to be set

bigDecimalProperty

public static BigDecimal bigDecimalProperty(com.fasterxml.jackson.databind.JsonNode node,
                                            String propertyName)

Extract a BigDecimal property from the given json tree. Returns null if no property exists or is not a boolean node.

Parameters:

node - JsonNode

propertyName - Property to extract

Returns:

BigDecimal containing the extracted value

bigDecimalProperty

public static void bigDecimalProperty(com.fasterxml.jackson.databind.node.ObjectNode node,
                                      String propertyName,
                                      BigDecimal propertyValue)

Sets the value of a property for a given json node. If the value is null, then the property is not written.

Parameters:

node - ObjectNode

propertyName - Property to be set

propertyValue - BigDecimal value to be set

readObject

public static Object readObject(com.fasterxml.jackson.databind.JsonNode node)

Reads the node as a Java object.This is typically expected to be a literal of some sort, as in the case of default values and examples. The node may be anything from a string to a javascript object.

Parameters:

node - the json node

Returns:

a java object

parseValue

public static Object parseValue(String value)

Parses an extension value. The value may be: - JSON object - starts with { - JSON array - starts with [ - number - boolean - string

Parameters:

value - the value to parse

Returns:

Extension

readStringArray

public static Optional<List<String>> readStringArray(com.fasterxml.jackson.databind.JsonNode node)

Reads a string array.

Parameters:

node - the json node

Returns:

List of strings

readObjectArray

public static Optional<List<Object>> readObjectArray(com.fasterxml.jackson.databind.JsonNode node)

Reads an object array.

Parameters:

node - the json node

Returns:

list of objects

readStringMap

public static Optional<Map<String,String>> readStringMap(com.fasterxml.jackson.databind.JsonNode node)

Reads a map of strings.

Parameters:

node - json map

Returns:

a String-String map