org.springframework.core.codec.ResourceDecoder Java Examples

/**
 * Return readers that support specific types.
 */
final List<HttpMessageReader<?>> getTypedReaders() {
	if (!this.registerDefaults) {
		return Collections.emptyList();
	}
	List<HttpMessageReader<?>> readers = new ArrayList<>();
	readers.add(new DecoderHttpMessageReader<>(new ByteArrayDecoder()));
	readers.add(new DecoderHttpMessageReader<>(new ByteBufferDecoder()));
	readers.add(new DecoderHttpMessageReader<>(new DataBufferDecoder()));
	readers.add(new DecoderHttpMessageReader<>(new ResourceDecoder()));
	readers.add(new DecoderHttpMessageReader<>(StringDecoder.textPlainOnly()));
	if (protobufPresent) {
		Decoder<?> decoder = this.protobufDecoder != null ? this.protobufDecoder : new ProtobufDecoder();
		readers.add(new DecoderHttpMessageReader<>(decoder));
	}

	FormHttpMessageReader formReader = new FormHttpMessageReader();
	formReader.setEnableLoggingRequestDetails(this.enableLoggingRequestDetails);
	readers.add(formReader);

	extendTypedReaders(readers);

	return readers;
}
 

@Test
public void defaultReaders() {
	List<HttpMessageReader<?>> readers = this.configurer.getReaders();
	assertEquals(13, readers.size());
	assertEquals(ByteArrayDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ByteBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(DataBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ResourceDecoder.class, getNextDecoder(readers).getClass());
	assertStringDecoder(getNextDecoder(readers), true);
	assertEquals(ProtobufDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(FormHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass());
	assertEquals(SynchronossPartHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass());
	assertEquals(MultipartHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass());
	assertEquals(Jackson2JsonDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jackson2SmileDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jaxb2XmlDecoder.class, getNextDecoder(readers).getClass());
	assertStringDecoder(getNextDecoder(readers), false);
}
 

@Test
public void defaultReaders() {
	List<HttpMessageReader<?>> readers = this.configurer.getReaders();
	assertEquals(12, readers.size());
	assertEquals(ByteArrayDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ByteBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(DataBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ResourceDecoder.class, getNextDecoder(readers).getClass());
	assertStringDecoder(getNextDecoder(readers), true);
	assertEquals(ProtobufDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(FormHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass()); // SPR-16804
	assertEquals(Jackson2JsonDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jackson2SmileDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jaxb2XmlDecoder.class, getNextDecoder(readers).getClass());
	assertSseReader(readers);
	assertStringDecoder(getNextDecoder(readers), false);
}
 

@Test
public void defaultReaders() {
	List<HttpMessageReader<?>> readers = this.configurer.getReaders();
	assertEquals(11, readers.size());
	assertEquals(ByteArrayDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ByteBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(DataBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ResourceDecoder.class, getNextDecoder(readers).getClass());
	assertStringDecoder(getNextDecoder(readers), true);
	assertEquals(ProtobufDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(FormHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass());
	assertEquals(Jackson2JsonDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jackson2SmileDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jaxb2XmlDecoder.class, getNextDecoder(readers).getClass());
	assertStringDecoder(getNextDecoder(readers), false);
}
 

@Override
protected Map<String, Object> getReadHints(ResolvableType actualType, ResolvableType elementType,
		ServerHttpRequest request, ServerHttpResponse response) {

	String name = request.getHeaders().getContentDisposition().getFilename();
	return StringUtils.hasText(name) ? Hints.from(ResourceDecoder.FILENAME_HINT, name) : Hints.none();
}
 

@Test
public void defaultAndCustomReaders() {
	Decoder<?> customDecoder1 = mock(Decoder.class);
	Decoder<?> customDecoder2 = mock(Decoder.class);

	when(customDecoder1.canDecode(ResolvableType.forClass(Object.class), null)).thenReturn(false);
	when(customDecoder2.canDecode(ResolvableType.forClass(Object.class), null)).thenReturn(true);

	HttpMessageReader<?> customReader1 = mock(HttpMessageReader.class);
	HttpMessageReader<?> customReader2 = mock(HttpMessageReader.class);

	when(customReader1.canRead(ResolvableType.forClass(Object.class), null)).thenReturn(false);
	when(customReader2.canRead(ResolvableType.forClass(Object.class), null)).thenReturn(true);

	this.configurer.customCodecs().decoder(customDecoder1);
	this.configurer.customCodecs().decoder(customDecoder2);

	this.configurer.customCodecs().reader(customReader1);
	this.configurer.customCodecs().reader(customReader2);

	List<HttpMessageReader<?>> readers = this.configurer.getReaders();

	assertEquals(15, readers.size());
	assertEquals(ByteArrayDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ByteBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(DataBufferDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ResourceDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(StringDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(ProtobufDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(FormHttpMessageReader.class, readers.get(this.index.getAndIncrement()).getClass());
	assertSame(customDecoder1, getNextDecoder(readers));
	assertSame(customReader1, readers.get(this.index.getAndIncrement()));
	assertEquals(Jackson2JsonDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jackson2SmileDecoder.class, getNextDecoder(readers).getClass());
	assertEquals(Jaxb2XmlDecoder.class, getNextDecoder(readers).getClass());
	assertSame(customDecoder2, getNextDecoder(readers));
	assertSame(customReader2, readers.get(this.index.getAndIncrement()));
	assertEquals(StringDecoder.class, getNextDecoder(readers).getClass());
}
 

public ResourceHttpMessageReader() {
	super(new ResourceDecoder());
}
 

public ResourceHttpMessageReader(ResourceDecoder resourceDecoder) {
	super(resourceDecoder);
}
 

@Override
protected void register(GenericApplicationContext context, CodecConfigurer configurer) {
	configurer.customCodecs().writer(new ResourceHttpMessageWriter());
	configurer.customCodecs().decoder(new ResourceDecoder());
}