Package com.powsybl.commons.json

Class JsonUtil

java.lang.Object

com.powsybl.commons.json.JsonUtil

public final class JsonUtil
extends Object

Author:

Mathieu Bague <mathieu.bague at rte-france.com>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	JsonUtil.FieldHandler	Called by variants of parseObject(com.fasterxml.jackson.core.JsonParser, com.powsybl.commons.json.JsonUtil.FieldHandler) on each encountered field.
static interface	JsonUtil.SerializerSupplier

Method Summary

Modifier and Type	Method	Description
static void	assertGreaterOrEqualThanReferenceVersion(String contextName, String elementName, String version, String referenceVersion)
static void	assertGreaterThanReferenceVersion(String contextName, String elementName, String version, String referenceVersion)
static void	assertLessThanOrEqualToReferenceVersion(String contextName, String elementName, String version, String referenceVersion)
static void	assertLessThanReferenceVersion(String contextName, String elementName, String version, String referenceVersion)
static com.fasterxml.jackson.core.JsonFactory	createJsonFactory()
static com.fasterxml.jackson.databind.ObjectMapper	createObjectMapper()
static String	getSourceVersion(com.fasterxml.jackson.databind.DatabindContext context, String sourceVersionAttributeKey)	Reads the version from the context (typically a DeserializationContext) where it has been previously stored.
static List<Double>	parseDoubleArray(com.fasterxml.jackson.core.JsonParser parser)
static List<Float>	parseFloatArray(com.fasterxml.jackson.core.JsonParser parser)
static List<Integer>	parseIntegerArray(com.fasterxml.jackson.core.JsonParser parser)
static <T> T	parseJson(Reader reader, Function<com.fasterxml.jackson.core.JsonParser,T> function)
static <T> T	parseJson(String json, Function<com.fasterxml.jackson.core.JsonParser,T> function)
static <T> T	parseJson(Path file, Function<com.fasterxml.jackson.core.JsonParser,T> function)
static List<Long>	parseLongArray(com.fasterxml.jackson.core.JsonParser parser)
static void	parseObject(com.fasterxml.jackson.core.JsonParser parser, boolean polymorphic, JsonUtil.FieldHandler fieldHandler)	Parses an object from the current parser position, using the provided field handler.
static void	parseObject(com.fasterxml.jackson.core.JsonParser parser, JsonUtil.FieldHandler fieldHandler)	Parses an object from the current parser position, using the provided field handler.
static <T> void	parseObjectArray(com.fasterxml.jackson.core.JsonParser parser, Consumer<T> objectAdder, Function<com.fasterxml.jackson.core.JsonParser,T> objectParser)
static void	parsePolymorphicObject(com.fasterxml.jackson.core.JsonParser parser, JsonUtil.FieldHandler fieldHandler)	Parses an object from the current parser position, using the provided field handler.
static List<String>	parseStringArray(com.fasterxml.jackson.core.JsonParser parser)
static <T extends Extendable> Extension<T>	readExtension(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, ExtensionProviders<? extends ExtensionJsonSerializer> supplier, Set<String> extensionsNotFound)
static <T extends Extendable> List<Extension<T>>	readExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context)
static <T extends Extendable> List<Extension<T>>	readExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
static <T extends Extendable> List<Extension<T>>	readExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, ExtensionProviders<? extends ExtensionJsonSerializer> supplier, Set<String> extensionsNotFound)
static <T> T	readJson(Path jsonFile, Class<T> clazz, com.fasterxml.jackson.databind.ObjectMapper objectMapper)
static <T> T	readJsonAndUpdate(InputStream is, T object, com.fasterxml.jackson.databind.ObjectMapper objectMapper)
static <T> T	readJsonAndUpdate(Path jsonFile, T object, com.fasterxml.jackson.databind.ObjectMapper objectMapper)
static <T> List<T>	readList(com.fasterxml.jackson.databind.DeserializationContext context, com.fasterxml.jackson.core.JsonParser parser, Class<?> type)
static <T> Set<T>	readSet(com.fasterxml.jackson.databind.DeserializationContext context, com.fasterxml.jackson.core.JsonParser parser, Class<?> type)
static <T> T	readValue(com.fasterxml.jackson.databind.DeserializationContext context, com.fasterxml.jackson.core.JsonParser parser, Class<?> type)	Reads a value using the given deserialization context (instead of only using the parser reading method that recreates a context every time).
static void	setSourceVersion(com.fasterxml.jackson.databind.DatabindContext context, String version, String sourceVersionAttributeKey)	Saves the provided version into the context (typically a DeserializationContext), for later retrieval.
static void	skip(com.fasterxml.jackson.core.JsonParser parser)	Skip a part of a JSON document
static String	toJson(Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)
static <T extends Extendable> List<Extension<T>>	updateExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, ExtensionProviders<? extends ExtensionJsonSerializer> supplier, Set<String> extensionsNotFound, T extendable)
static <T extends Extendable> List<Extension<T>>	updateExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, ExtensionProviders<? extends ExtensionJsonSerializer> supplier, T extendable)	Updates the extensions of the provided extendable with possibly partial definition read from JSON.
static <T extends Extendable> List<Extension<T>>	updateExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, JsonUtil.SerializerSupplier supplier, Set<String> extensionsNotFound, T extendable)	Updates the extensions of the provided extendable with possibly partial definition read from JSON.
static <T extends Extendable> List<Extension<T>>	updateExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, JsonUtil.SerializerSupplier supplier, T extendable)
static <T extends Extendable> List<Extension<T>>	updateExtensions(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context, T extendable)	Updates the extensions of the provided extendable with possibly partial definition read from JSON.
static <T> Set<String>	writeExtensions(Extendable<T> extendable, com.fasterxml.jackson.core.JsonGenerator jsonGenerator, boolean headerWanted, com.fasterxml.jackson.databind.SerializerProvider serializerProvider, ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
static <T> Set<String>	writeExtensions(Extendable<T> extendable, com.fasterxml.jackson.core.JsonGenerator jsonGenerator, boolean headerWanted, com.fasterxml.jackson.databind.SerializerProvider serializerProvider, JsonUtil.SerializerSupplier supplier)
static <T> Set<String>	writeExtensions(Extendable<T> extendable, com.fasterxml.jackson.core.JsonGenerator jsonGenerator, com.fasterxml.jackson.databind.SerializerProvider serializerProvider)
static <T> Set<String>	writeExtensions(Extendable<T> extendable, com.fasterxml.jackson.core.JsonGenerator jsonGenerator, com.fasterxml.jackson.databind.SerializerProvider serializerProvider, ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
static <T> Set<String>	writeExtensions(Extendable<T> extendable, com.fasterxml.jackson.core.JsonGenerator jsonGenerator, com.fasterxml.jackson.databind.SerializerProvider serializerProvider, JsonUtil.SerializerSupplier supplier)
static void	writeJson(Writer writer, Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)
static void	writeJson(Path jsonFile, Object object, com.fasterxml.jackson.databind.ObjectMapper objectMapper)
static void	writeJson(Path file, Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)
static void	writeOptionalBoolean(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String field, Optional<Boolean> optional)
static void	writeOptionalBooleanField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, boolean value, boolean defaultValue)
static void	writeOptionalDouble(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String field, OptionalDouble optional)
static void	writeOptionalDoubleField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, double value)
static void	writeOptionalDoubleField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, double value, double defaultValue)
static <T extends Enum> void	writeOptionalEnum(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String field, Optional<T> optional)
static void	writeOptionalEnumField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, Enum<?> value)
static void	writeOptionalFloatField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, float value)
static void	writeOptionalIntegerField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, int value)
static void	writeOptionalStringField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator, String fieldName, String value)

Methods inherited from class java.lang.Object

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

Method Details

createObjectMapper

public static com.fasterxml.jackson.databind.ObjectMapper createObjectMapper()

writeJson

public static void writeJson(Path jsonFile,
 Object object,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

readJson

public static <T> T readJson(Path jsonFile,
 Class<T> clazz,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

readJsonAndUpdate

public static <T> T readJsonAndUpdate(InputStream is,
 T object,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

readJsonAndUpdate

public static <T> T readJsonAndUpdate(Path jsonFile,
 T object,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

createJsonFactory

public static com.fasterxml.jackson.core.JsonFactory createJsonFactory()

writeJson

public static void writeJson(Writer writer,
 Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)

toJson

public static String toJson(Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)

writeJson

public static void writeJson(Path file,
 Consumer<com.fasterxml.jackson.core.JsonGenerator> consumer)

parseJson

public static <T> T parseJson(Path file,
 Function<com.fasterxml.jackson.core.JsonParser,T> function)

parseJson

public static <T> T parseJson(String json,
 Function<com.fasterxml.jackson.core.JsonParser,T> function)

parseJson

public static <T> T parseJson(Reader reader,
 Function<com.fasterxml.jackson.core.JsonParser,T> function)

writeOptionalStringField

public static void writeOptionalStringField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 String value)
                                     throws IOException

Throws:

IOException

writeOptionalEnumField

public static void writeOptionalEnumField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 Enum<?> value)
                                   throws IOException

Throws:

IOException

writeOptionalBooleanField

public static void writeOptionalBooleanField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 boolean value,
 boolean defaultValue)
                                      throws IOException

Throws:

IOException

writeOptionalFloatField

public static void writeOptionalFloatField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 float value)
                                    throws IOException

Throws:

IOException

writeOptionalDoubleField

public static void writeOptionalDoubleField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 double value)
                                     throws IOException

Throws:

IOException

writeOptionalDoubleField

public static void writeOptionalDoubleField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 double value,
 double defaultValue)
                                     throws IOException

Throws:

IOException

writeOptionalIntegerField

public static void writeOptionalIntegerField(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String fieldName,
 int value)
                                      throws IOException

Throws:

IOException

writeExtensions

public static <T> Set<String> writeExtensions(Extendable<T> extendable,
 com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 com.fasterxml.jackson.databind.SerializerProvider serializerProvider)
                                       throws IOException

Throws:

IOException

writeExtensions

public static <T> Set<String> writeExtensions(Extendable<T> extendable,
 com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 com.fasterxml.jackson.databind.SerializerProvider serializerProvider,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
                                       throws IOException

Throws:

IOException

writeExtensions

public static <T> Set<String> writeExtensions(Extendable<T> extendable,
 com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 com.fasterxml.jackson.databind.SerializerProvider serializerProvider,
 JsonUtil.SerializerSupplier supplier)
                                       throws IOException

Throws:

IOException

writeExtensions

public static <T> Set<String> writeExtensions(Extendable<T> extendable,
 com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 boolean headerWanted,
 com.fasterxml.jackson.databind.SerializerProvider serializerProvider,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
                                       throws IOException

Throws:

IOException

writeExtensions

public static <T> Set<String> writeExtensions(Extendable<T> extendable,
 com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 boolean headerWanted,
 com.fasterxml.jackson.databind.SerializerProvider serializerProvider,
 JsonUtil.SerializerSupplier supplier)
                                       throws IOException

Throws:

IOException

updateExtensions

public static <T extends Extendable>
List<Extension<T>> updateExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 T extendable)
                             throws IOException

Updates the extensions of the provided extendable with possibly partial definition read from JSON.

Note that in order for this to work correctly, extension providers need to implement ExtensionJsonSerializer.deserializeAndUpdate(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext, E).

Throws:

IOException

updateExtensions

public static <T extends Extendable>
List<Extension<T>> updateExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier,
 T extendable)
                             throws IOException

Updates the extensions of the provided extendable with possibly partial definition read from JSON.

Note that in order for this to work correctly, extension providers need to implement ExtensionJsonSerializer.deserializeAndUpdate(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext, E).

Throws:

IOException

updateExtensions

public static <T extends Extendable>
List<Extension<T>> updateExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 JsonUtil.SerializerSupplier supplier,
 T extendable)
                             throws IOException

Throws:

IOException

updateExtensions

public static <T extends Extendable>
List<Extension<T>> updateExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier,
 Set<String> extensionsNotFound,
 T extendable)
                             throws IOException

Throws:

IOException

updateExtensions

public static <T extends Extendable>
List<Extension<T>> updateExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 JsonUtil.SerializerSupplier supplier,
 Set<String> extensionsNotFound,
 T extendable)
                             throws IOException

Updates the extensions of the provided extendable with possibly partial definition read from JSON.

Note that in order for this to work correctly, extension providers need to implement ExtensionJsonSerializer.deserializeAndUpdate(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext, E).

Throws:

IOException

readExtensions

public static <T extends Extendable>
List<Extension<T>> readExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context)
                           throws IOException

Throws:

IOException

readExtensions

public static <T extends Extendable>
List<Extension<T>> readExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier)
                           throws IOException

Throws:

IOException

readExtensions

public static <T extends Extendable>
List<Extension<T>> readExtensions(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier,
 Set<String> extensionsNotFound)
                           throws IOException

Throws:

IOException

readExtension

public static <T extends Extendable> Extension<T> readExtension(com.fasterxml.jackson.core.JsonParser parser,
 com.fasterxml.jackson.databind.DeserializationContext context,
 ExtensionProviders<? extends ExtensionJsonSerializer> supplier,
 Set<String> extensionsNotFound)
                                                         throws IOException

Throws:

IOException

skip

public static void skip(com.fasterxml.jackson.core.JsonParser parser)
                 throws IOException

Skip a part of a JSON document

Throws:

IOException

assertLessThanOrEqualToReferenceVersion

public static void assertLessThanOrEqualToReferenceVersion(String contextName,
 String elementName,
 String version,
 String referenceVersion)

assertGreaterThanReferenceVersion

public static void assertGreaterThanReferenceVersion(String contextName,
 String elementName,
 String version,
 String referenceVersion)

assertGreaterOrEqualThanReferenceVersion

public static void assertGreaterOrEqualThanReferenceVersion(String contextName,
 String elementName,
 String version,
 String referenceVersion)

assertLessThanReferenceVersion

public static void assertLessThanReferenceVersion(String contextName,
 String elementName,
 String version,
 String referenceVersion)

parseObject

public static void parseObject(com.fasterxml.jackson.core.JsonParser parser,
 JsonUtil.FieldHandler fieldHandler)

Parses an object from the current parser position, using the provided field handler. The parsing will expect the starting position to be START_OBJECT.

parsePolymorphicObject

public static void parsePolymorphicObject(com.fasterxml.jackson.core.JsonParser parser,
 JsonUtil.FieldHandler fieldHandler)

Parses an object from the current parser position, using the provided field handler. The parsing will accept the starting position to be either a START_OBJECT or a FIELD_NAME, see contract for JsonDeserializer.deserialize(JsonParser, DeserializationContext).

parseObject

public static void parseObject(com.fasterxml.jackson.core.JsonParser parser,
 boolean polymorphic,
 JsonUtil.FieldHandler fieldHandler)

Parses an object from the current parser position, using the provided field handler. If polymorphic is true, the parsing will accept the starting position to be either a START_OBJECT or a FIELD_NAME, see contract for JsonDeserializer.deserialize(JsonParser, DeserializationContext).

parseObjectArray

public static <T> void parseObjectArray(com.fasterxml.jackson.core.JsonParser parser,
 Consumer<T> objectAdder,
 Function<com.fasterxml.jackson.core.JsonParser,T> objectParser)

parseIntegerArray

public static List<Integer> parseIntegerArray(com.fasterxml.jackson.core.JsonParser parser)

parseLongArray

public static List<Long> parseLongArray(com.fasterxml.jackson.core.JsonParser parser)

parseFloatArray

public static List<Float> parseFloatArray(com.fasterxml.jackson.core.JsonParser parser)

parseDoubleArray

public static List<Double> parseDoubleArray(com.fasterxml.jackson.core.JsonParser parser)

parseStringArray

public static List<String> parseStringArray(com.fasterxml.jackson.core.JsonParser parser)

setSourceVersion

public static void setSourceVersion(com.fasterxml.jackson.databind.DatabindContext context,
 String version,
 String sourceVersionAttributeKey)

Saves the provided version into the context (typically a DeserializationContext), for later retrieval.

getSourceVersion

public static String getSourceVersion(com.fasterxml.jackson.databind.DatabindContext context,
 String sourceVersionAttributeKey)

Reads the version from the context (typically a DeserializationContext) where it has been previously stored.

readValue

public static <T> T readValue(com.fasterxml.jackson.databind.DeserializationContext context,
 com.fasterxml.jackson.core.JsonParser parser,
 Class<?> type)

Reads a value using the given deserialization context (instead of only using the parser reading method that recreates a context every time). Also handles reading null values.

readList

public static <T> List<T> readList(com.fasterxml.jackson.databind.DeserializationContext context,
 com.fasterxml.jackson.core.JsonParser parser,
 Class<?> type)

readSet

public static <T> Set<T> readSet(com.fasterxml.jackson.databind.DeserializationContext context,
 com.fasterxml.jackson.core.JsonParser parser,
 Class<?> type)

writeOptionalEnum

public static <T extends Enum> void writeOptionalEnum(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String field,
 Optional<T> optional)
                                               throws IOException

Throws:

IOException

writeOptionalDouble

public static void writeOptionalDouble(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String field,
 OptionalDouble optional)
                                throws IOException

Throws:

IOException

writeOptionalBoolean

public static void writeOptionalBoolean(com.fasterxml.jackson.core.JsonGenerator jsonGenerator,
 String field,
 Optional<Boolean> optional)
                                 throws IOException

Throws:

IOException