io.jsonwebtoken.jackson.io

Class JacksonDeserializer<T>

java.lang.Object

io.jsonwebtoken.jackson.io.JacksonDeserializer<T>

All Implemented Interfaces:

Deserializer<T>

public class JacksonDeserializer<T>
extends Object
implements Deserializer<T>

Since:

0.10.0

Constructor Summary

Constructors

Constructor and Description
JacksonDeserializer()
JacksonDeserializer(Map<String,Class> claimTypeMap) Creates a new JacksonDeserializer where the values of the claims can be parsed into given types.
JacksonDeserializer(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Summary

Methods

Modifier and Type	Method and Description
T	deserialize(byte[] bytes)
protected T	readValue(byte[] bytes)

Methods inherited from class java.lang.Object

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

Constructor Detail

JacksonDeserializer

public JacksonDeserializer()

JacksonDeserializer

public JacksonDeserializer(Map<String,Class> claimTypeMap)

Creates a new JacksonDeserializer where the values of the claims can be parsed into given types. A common usage example is to parse custom User object out of a claim, for example the claims:

{
     "issuer": "https://issuer.example.com",
     "user": {
         "firstName": "Jill",
         "lastName": "Coder"
     }
 }

Passing a map of ["user": User.class] to this constructor would result in the user claim being transformed to an instance of your custom User class, instead of the default of Map.

Because custom type parsing requires modifying the state of a Jackson ObjectMapper, this constructor creates a new internal ObjectMapper instance and customizes it to support the specified claimTypeMap. This ensures that the JJWT parsing behavior does not unexpectedly modify the state of another application-specific ObjectMapper.

If you would like to use your own ObjectMapper instance that also supports custom types for JWT Claims, you will need to first customize your ObjectMapper instance by registering your custom types and then use the JacksonDeserializer(ObjectMapper) constructor instead.

Parameters:

claimTypeMap - The claim name-to-class map used to deserialize claims into the given type

JacksonDeserializer

public JacksonDeserializer(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Detail

deserialize

public T deserialize(byte[] bytes)
              throws DeserializationException

Specified by:

deserialize in interface Deserializer<T>

Throws:

DeserializationException

readValue

protected T readValue(byte[] bytes)
               throws IOException

Throws:

IOException