Package io.micronaut.json.body

Class JsonMessageHandler<T>

java.lang.Object

io.micronaut.json.body.JsonMessageHandler<T>

Type Parameters:

T - The type to read/write

All Implemented Interfaces:

MessageBodyHandler<T>, MessageBodyReader<T>, MessageBodyWriter<T>

@Singleton
@ProducesJson
@ConsumesJson
public final class JsonMessageHandler<T>
extends Object
implements MessageBodyHandler<T>

Body handler for JSON.

Since:

4.0.0

Author:

Jonas Konrad

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static @interface	JsonMessageHandler.ConsumesJson	A Consumes with JSON supported types.
static @interface	JsonMessageHandler.ProducesJson	A Produces with JSON supported types.

Constructor Summary

Constructors

Constructor	Description
JsonMessageHandler(JsonMapper jsonMapper)

Method Summary

Modifier and Type	Method	Description
JsonMessageHandler<T>	createSpecific(Argument<T> type)	Prepare a MessageBodyWriter that will write the given type.
@NonNull JsonMapper	getJsonMapper()	Get the json mapper used by this handler.
boolean	isReadable(Argument<T> type, MediaType mediaType)	Is the type readable.
boolean	isWriteable(Argument<T> type, MediaType mediaType)	Is the type writeable.
T	read(Argument<T> type, MediaType mediaType, Headers httpHeaders, ByteBuffer<?> byteBuffer)	Reads an object from the given byte buffer.
T	read(Argument<T> type, MediaType mediaType, Headers httpHeaders, InputStream inputStream)	Reads an object from the given byte buffer.
void	writeTo(Argument<T> type, MediaType mediaType, T object, MutableHeaders outgoingHeaders, OutputStream outputStream)	Writes an object to the given output stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.micronaut.http.body.MessageBodyWriter

isBlocking, writeTo

Constructor Details

JsonMessageHandler

public JsonMessageHandler(JsonMapper jsonMapper)

Method Details

getJsonMapper

@NonNull
public @NonNull JsonMapper getJsonMapper()

Get the json mapper used by this handler.

Returns:

The mapper

isReadable

public boolean isReadable(Argument<T> type,
 MediaType mediaType)

Description copied from interface: MessageBodyReader

Is the type readable.

Specified by:

isReadable in interface MessageBodyReader<T>

Parameters:

type - The type

mediaType - The media type, can be null

Returns:

True if is readable

createSpecific

public JsonMessageHandler<T> createSpecific(Argument<T> type)

Description copied from interface: MessageBodyWriter

Prepare a MessageBodyWriter that will write the given type. This can be used for precomputing some route data.

Specified by:

createSpecific in interface MessageBodyWriter<T>

Parameters:

type - The type

Returns:

The closure

read

public T read(Argument<T> type,
 MediaType mediaType,
 Headers httpHeaders,
 ByteBuffer<?> byteBuffer)
       throws CodecException

Description copied from interface: MessageBodyReader

Reads an object from the given byte buffer.

Specified by:

read in interface MessageBodyReader<T>

Parameters:

type - The type being decoded.

mediaType - The media type, can be null

httpHeaders - The HTTP headers

byteBuffer - The byte buffer

Returns:

The read object or null

Throws:

CodecException - If an error occurs decoding

read

public T read(Argument<T> type,
 MediaType mediaType,
 Headers httpHeaders,
 InputStream inputStream)
       throws CodecException

Description copied from interface: MessageBodyReader

Reads an object from the given byte buffer.

Specified by:

read in interface MessageBodyReader<T>

Parameters:

type - The type being decoded.

mediaType - The media type, can be null

httpHeaders - The HTTP headers

inputStream - The input stream

Returns:

The read object or null

Throws:

CodecException - If an error occurs decoding

isWriteable

public boolean isWriteable(Argument<T> type,
 MediaType mediaType)

Description copied from interface: MessageBodyWriter

Is the type writeable.

Specified by:

isWriteable in interface MessageBodyWriter<T>

Parameters:

type - The type

mediaType - The media type, can be null

Returns:

True if is writable

writeTo

public void writeTo(Argument<T> type,
 MediaType mediaType,
 T object,
 MutableHeaders outgoingHeaders,
 OutputStream outputStream)
             throws CodecException

Description copied from interface: MessageBodyWriter

Writes an object to the given output stream.

Specified by:

writeTo in interface MessageBodyWriter<T>

Parameters:

type - The type

mediaType - The media type

object - The object to write

outgoingHeaders - The HTTP headers

outputStream - The output stream

Throws:

CodecException - If an error occurs decoding