com.itextpdf.commons.utils

Class JsonUtil

java.lang.Object

com.itextpdf.commons.utils.JsonUtil

public final class JsonUtil
extends Object

Utility class for JSON serialization and deserialization operations. Not for public use.

Method Summary

Modifier and Type	Method and Description
static boolean	areTwoJsonObjectEquals(String expectedString, String toCompare) Compares two json strings without considering the order of the elements.
static <T> T	deserializeFromStream(InputStream content, Class<T> objectType) Deserializes passed JSON stream to object with passed type.
static <T> T	deserializeFromStream(InputStream content, com.fasterxml.jackson.databind.JavaType objectType) Deserializes passed JSON stream to object with passed type.
static <T> T	deserializeFromStream(InputStream content, com.fasterxml.jackson.core.type.TypeReference<T> objectType) Deserializes passed JSON stream to object with passed type.
static <T> T	deserializeFromString(String content, Class<T> objectType) Deserializes passed JSON string to object with passed type.
static <T> T	deserializeFromString(String content, com.fasterxml.jackson.databind.JavaType objectType) Deserializes passed JSON string to object with passed type.
static <T> T	deserializeFromString(String content, com.fasterxml.jackson.core.type.TypeReference<T> objectType) Deserializes passed JSON string to object with passed type.
static void	serializeToMinimalStream(OutputStream outputStream, Object value) Serializes passed object to minimal JSON without spaces and line breaks and writes it into provided stream.
static String	serializeToMinimalString(Object value) Serializes passed object to minimal JSON string without spaces and line breaks.
static void	serializeToStream(OutputStream outputStream, Object value) Serializes passed object to provided JSON output stream.
static String	serializeToString(Object value) Serializes passed object to JSON string.

Methods inherited from class java.lang.Object

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

Method Detail

areTwoJsonObjectEquals

public static boolean areTwoJsonObjectEquals(String expectedString,
                                             String toCompare)
                                      throws IOException

Compares two json strings without considering the order of the elements.

Parameters:

expectedString - expected json string

toCompare - string for comparison

Returns:

true if two json string are equals, false otherwise

Throws:

IOException - if an I/O error occurs

serializeToStream

public static void serializeToStream(OutputStream outputStream,
                                     Object value)

Serializes passed object to provided JSON output stream.

Parameters:

outputStream - stream to which the object will be serialized

value - the object which will be serialized

serializeToString

public static String serializeToString(Object value)

Serializes passed object to JSON string.

Parameters:

value - the object which will be serialized

Returns:

the JSON string representation of passed object or null if it is impossible to serialize to JSON

serializeToMinimalStream

public static void serializeToMinimalStream(OutputStream outputStream,
                                            Object value)

Serializes passed object to minimal JSON without spaces and line breaks and writes it into provided stream.

Parameters:

outputStream - stream to which the object will be serialized

value - the object which will be serialized

serializeToMinimalString

public static String serializeToMinimalString(Object value)

Serializes passed object to minimal JSON string without spaces and line breaks.

Parameters:

value - the object which will be serialized

Returns:

the minimal JSON string representation of passed object or null if it is impossible to serialize to JSON

deserializeFromStream

public static <T> T deserializeFromStream(InputStream content,
                                          Class<T> objectType)

Deserializes passed JSON stream to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON stream which represent object

objectType - the class of object as Class which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible

deserializeFromStream

public static <T> T deserializeFromStream(InputStream content,
                                          com.fasterxml.jackson.core.type.TypeReference<T> objectType)

Deserializes passed JSON stream to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON stream which represent object

objectType - the class of object as TypeReference which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible

deserializeFromStream

public static <T> T deserializeFromStream(InputStream content,
                                          com.fasterxml.jackson.databind.JavaType objectType)

Deserializes passed JSON stream to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON stream which represent object

objectType - the class of object as JavaType which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible

deserializeFromString

public static <T> T deserializeFromString(String content,
                                          Class<T> objectType)

Deserializes passed JSON string to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON string which represent object

objectType - the class of object as Class which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible

deserializeFromString

public static <T> T deserializeFromString(String content,
                                          com.fasterxml.jackson.core.type.TypeReference<T> objectType)

Deserializes passed JSON string to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON string which represent object

objectType - the class of object as TypeReference which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible

deserializeFromString

public static <T> T deserializeFromString(String content,
                                          com.fasterxml.jackson.databind.JavaType objectType)

Deserializes passed JSON string to object with passed type.

Type Parameters:

T - the type of object which will be deserialized

Parameters:

content - the JSON string which represent object

objectType - the class of object as JavaType which will be deserialized

Returns:

the deserialized object or null if operation of deserialization is impossible