Java Code Examples for org.springframework.core.io.buffer.DefaultDataBufferFactory#wrap()

@Test
public void toMonoParameterizedTypeReference() {
	BodyExtractor<Mono<Map<String, String>>, ReactiveHttpInputMessage> extractor =
			BodyExtractors.toMono(new ParameterizedTypeReference<Map<String, String>>() {});

	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("{\"username\":\"foo\",\"password\":\"bar\"}".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/").contentType(MediaType.APPLICATION_JSON).body(body);
	Mono<Map<String, String>> result = extractor.extract(request, this.context);

	Map<String, String > expected = new LinkedHashMap<>();
	expected.put("username", "foo");
	expected.put("password", "bar");
	StepVerifier.create(result)
			.expectNext(expected)
			.expectComplete()
			.verify();
}
 

@Test
public void bodyToMonoParameterizedTypeReference() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.GET, "https://example.com?foo=bar")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), messageReaders);

	ParameterizedTypeReference<String> typeReference = new ParameterizedTypeReference<String>() {};
	Mono<String> resultMono = request.bodyToMono(typeReference);
	assertEquals("foo", resultMono.block());
}
 

@Test
public void toEntityListTypeReference() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	mockTextPlainResponse(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	when(mockExchangeStrategies.messageReaders()).thenReturn(messageReaders);

	ResponseEntity<List<String>> result = defaultClientResponse.toEntityList(
			new ParameterizedTypeReference<String>() {
			}).block();
	assertEquals(Collections.singletonList("foo"), result.getBody());
	assertEquals(HttpStatus.OK, result.getStatusCode());
	assertEquals(HttpStatus.OK.value(), result.getStatusCodeValue());
	assertEquals(MediaType.TEXT_PLAIN, result.getHeaders().getContentType());
}
 

@Test
public void bodyToMonoParameterizedTypeReference() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.GET, "http://example.com?foo=bar")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), messageReaders);

	ParameterizedTypeReference<String> typeReference = new ParameterizedTypeReference<String>() {};
	Mono<String> resultMono = request.bodyToMono(typeReference);
	assertEquals("foo", resultMono.block());
}
 

@Test
public void bodyUnacceptable() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.GET, "https://example.com?foo=bar")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), Collections.emptyList());

	Flux<String> resultFlux = request.bodyToFlux(String.class);
	StepVerifier.create(resultFlux)
			.expectError(UnsupportedMediaTypeStatusException.class)
			.verify();
}
 

@Test
public void bodyToFluxParameterizedTypeReference() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.GET, "https://example.com?foo=bar")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), messageReaders);

	ParameterizedTypeReference<String> typeReference = new ParameterizedTypeReference<String>() {};
	Flux<String> resultFlux = request.bodyToFlux(typeReference);
	assertEquals(Collections.singletonList("foo"), resultFlux.collectList().block());
}
 

@Test
public void bodyToFlux() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);
	mockTextPlainResponse(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	given(mockExchangeStrategies.messageReaders()).willReturn(messageReaders);

	Flux<String> resultFlux = defaultClientResponse.bodyToFlux(String.class);
	Mono<List<String>> result = resultFlux.collectList();
	assertEquals(Collections.singletonList("foo"), result.block());
}
 

@Test
public void toEntityList() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);
	mockTextPlainResponse(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	when(mockExchangeStrategies.messageReaders()).thenReturn(messageReaders);

	ResponseEntity<List<String>> result = defaultClientResponse.toEntityList(String.class).block();
	assertEquals(Collections.singletonList("foo"), result.getBody());
	assertEquals(HttpStatus.OK, result.getStatusCode());
	assertEquals(HttpStatus.OK.value(), result.getStatusCodeValue());
	assertEquals(MediaType.TEXT_PLAIN, result.getHeaders().getContentType());
}
 

@Test
public void bodyToMonoDecodingException() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("{\"invalid\":\"json\" ".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.APPLICATION_JSON);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.POST, "https://example.com/invalid")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), messageReaders);

	Mono<Map<String, String>> resultMono = request.bodyToMono(
			new ParameterizedTypeReference<Map<String, String>>() {});
	StepVerifier.create(resultMono)
			.expectError(ServerWebInputException.class)
			.verify();
}
 

@Test
public void toMono() {
	BodyExtractor<Mono<String>, ReactiveHttpInputMessage> extractor = BodyExtractors.toMono(String.class);

	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/").body(body);
	Mono<String> result = extractor.extract(request, this.context);

	StepVerifier.create(result)
			.expectNext("foo")
			.expectComplete()
			.verify();
}
 

@Test
public void toFormData() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	String text = "name+1=value+1&name+2=value+2%2B1&name+2=value+2%2B2&name+3";
	DefaultDataBuffer dataBuffer = factory.wrap(ByteBuffer.wrap(text.getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/")
			.contentType(MediaType.APPLICATION_FORM_URLENCODED)
			.body(body);

	Mono<MultiValueMap<String, String>> result = BodyExtractors.toFormData().extract(request, this.context);

	StepVerifier.create(result)
			.consumeNextWith(form -> {
				assertEquals("Invalid result", 3, form.size());
				assertEquals("Invalid result", "value 1", form.getFirst("name 1"));
				List<String> values = form.get("name 2");
				assertEquals("Invalid result", 2, values.size());
				assertEquals("Invalid result", "value 2+1", values.get(0));
				assertEquals("Invalid result", "value 2+2", values.get(1));
				assertNull("Invalid result", form.getFirst("name 3"));
			})
			.expectComplete()
			.verify();
}
 

@Test
public void bodyToMonoDecodingException() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("{\"invalid\":\"json\" ".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.APPLICATION_JSON);
	MockServerHttpRequest mockRequest = MockServerHttpRequest
			.method(HttpMethod.POST, "http://example.com/invalid")
			.headers(httpHeaders)
			.body(body);
	DefaultServerRequest request = new DefaultServerRequest(MockServerWebExchange.from(mockRequest), messageReaders);

	Mono<Map<String, String>> resultMono = request.bodyToMono(
			new ParameterizedTypeReference<Map<String, String>>() {});
	StepVerifier.create(resultMono)
			.expectError(ServerWebInputException.class)
			.verify();
}
 

@Test
public void bodyToMonoTypeReference() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);
	mockTextPlainResponse(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	when(mockExchangeStrategies.messageReaders()).thenReturn(messageReaders);

	Mono<String> resultMono =
			defaultClientResponse.bodyToMono(new ParameterizedTypeReference<String>() {
			});
	assertEquals("foo", resultMono.block());
}
 

@Test
public void toFlux() {
	BodyExtractor<Flux<String>, ReactiveHttpInputMessage> extractor = BodyExtractors.toFlux(String.class);

	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/").body(body);
	Flux<String> result = extractor.extract(request, this.context);

	StepVerifier.create(result)
			.expectNext("foo")
			.expectComplete()
			.verify();
}
 

@Test
public void toMonoVoidAsClientShouldConsumeAndCancel() {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	TestPublisher<DataBuffer> body = TestPublisher.create();

	BodyExtractor<Mono<Void>, ReactiveHttpInputMessage> extractor = BodyExtractors.toMono(Void.class);
	MockClientHttpResponse response = new MockClientHttpResponse(HttpStatus.OK);
	response.setBody(body.flux());

	StepVerifier.create(extractor.extract(response, this.context))
			.then(() -> {
				body.assertWasSubscribed();
				body.emit(dataBuffer);
			})
			.verifyComplete();

	body.assertCancelled();
}
 

@Test
public void toDataBuffers() {
	BodyExtractor<Flux<DataBuffer>, ReactiveHttpInputMessage> extractor = BodyExtractors.toDataBuffers();

	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/").body(body);
	Flux<DataBuffer> result = extractor.extract(request, this.context);

	StepVerifier.create(result)
			.expectNext(dataBuffer)
			.expectComplete()
			.verify();
}
 

@Test
public void toMono() {
	BodyExtractor<Mono<String>, ReactiveHttpInputMessage> extractor = BodyExtractors.toMono(String.class);

	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	MockServerHttpRequest request = MockServerHttpRequest.post("/").body(body);
	Mono<String> result = extractor.extract(request, this.context);

	StepVerifier.create(result)
			.expectNext("foo")
			.expectComplete()
			.verify();
}
 

@Test
public void toEntityWithUnknownStatusCode() throws Exception {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer
			= factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	given(mockResponse.getHeaders()).willReturn(httpHeaders);
	given(mockResponse.getStatusCode()).willThrow(new IllegalArgumentException("999"));
	given(mockResponse.getRawStatusCode()).willReturn(999);
	given(mockResponse.getBody()).willReturn(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	given(mockExchangeStrategies.messageReaders()).willReturn(messageReaders);

	ResponseEntity<String> result = defaultClientResponse.toEntity(String.class).block();
	assertEquals("foo", result.getBody());
	try {
		result.getStatusCode();
		fail("Expected IllegalArgumentException");
	}
	catch (IllegalArgumentException ex) {
		// do nothing
	}
	assertEquals(999, result.getStatusCodeValue());
	assertEquals(MediaType.TEXT_PLAIN, result.getHeaders().getContentType());
}
 

@Test
public void toEntityListWithUnknownStatusCode() throws Exception {
	DefaultDataBufferFactory factory = new DefaultDataBufferFactory();
	DefaultDataBuffer dataBuffer =
			factory.wrap(ByteBuffer.wrap("foo".getBytes(StandardCharsets.UTF_8)));
	Flux<DataBuffer> body = Flux.just(dataBuffer);

	HttpHeaders httpHeaders = new HttpHeaders();
	httpHeaders.setContentType(MediaType.TEXT_PLAIN);
	given(mockResponse.getHeaders()).willReturn(httpHeaders);
	given(mockResponse.getStatusCode()).willThrow(new IllegalArgumentException("999"));
	given(mockResponse.getRawStatusCode()).willReturn(999);
	given(mockResponse.getBody()).willReturn(body);

	List<HttpMessageReader<?>> messageReaders = Collections
			.singletonList(new DecoderHttpMessageReader<>(StringDecoder.allMimeTypes()));
	given(mockExchangeStrategies.messageReaders()).willReturn(messageReaders);

	ResponseEntity<List<String>> result = defaultClientResponse.toEntityList(String.class).block();
	assertEquals(Collections.singletonList("foo"), result.getBody());
	try {
		result.getStatusCode();
		fail("Expected IllegalArgumentException");
	}
	catch (IllegalArgumentException ex) {
		// do nothing
	}
	assertEquals(999, result.getStatusCodeValue());
	assertEquals(MediaType.TEXT_PLAIN, result.getHeaders().getContentType());
}
 

private DataBuffer dataBuffer(String foo, DefaultDataBufferFactory bufferFactory) {
	return bufferFactory.wrap(foo.getBytes(StandardCharsets.UTF_8));
}