java类javax.ws.rs.ext.MessageBodyReader的实例源码

@Inject
public JerseyApplication(ServiceLocator serviceLocator) {
    GuiceBridge.getGuiceBridge().initializeGuiceBridge(serviceLocator);
    GuiceIntoHK2Bridge guiceBridge = serviceLocator.getService(GuiceIntoHK2Bridge.class);
    guiceBridge.bridgeGuiceInjector(AppLoader.injector);

    String disableMoxy = PropertiesHelper.getPropertyNameForRuntime(
            CommonProperties.MOXY_JSON_FEATURE_DISABLE,
               getConfiguration().getRuntimeType());
       property(disableMoxy, true);
       property(ServerProperties.BV_SEND_ERROR_IN_RESPONSE, true);

       // add the default Jackson exception mappers
       register(JsonParseExceptionMapper.class);
       register(JsonMappingExceptionMapper.class);
       register(JacksonJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);

       packages(JerseyApplication.class.getPackage().getName());

    for (JerseyConfigurator configurator: AppLoader.getExtensions(JerseyConfigurator.class)) {
        configurator.configure(this);
    }
}

public boolean configure(final FeatureContext context) {
    final Configuration config = context.getConfiguration();
    final String jsonFeature = CommonProperties.getValue(config.getProperties(), config.getRuntimeType(), InternalProperties.JSON_FEATURE, JSON_FEATURE,
            String.class);
    // Other JSON providers registered.
    if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
        return false;
    }
    // Disable other JSON providers.
    context.property(PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE, config.getRuntimeType()), JSON_FEATURE);
    // Register FastJson.
    if (!config.isRegistered(FastJsonProvider.class)) {
        //DisableCircularReferenceDetect
        FastJsonProvider fastJsonProvider = new FastJsonProvider();
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        //fastJsonConfig.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect,SerializerFeature.BrowserSecure);

        fastJsonConfig.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect);

        fastJsonProvider.setFastJsonConfig(fastJsonConfig);

        context.register(fastJsonProvider, MessageBodyReader.class, MessageBodyWriter.class);
    }
    return true;
}

@SuppressWarnings("unchecked")
private T getImpl(final MinijaxRequestContext context, final InputStream entityStream) throws IOException {
    if (entityClass == String.class) {
        return (T) IOUtils.toString(entityStream, StandardCharsets.UTF_8);
    }

    if (entityClass == MultivaluedMap.class) {
        return (T) context.getForm().asForm().asMap();
    }

    final MediaType mediaType = consumesTypes != null && !consumesTypes.isEmpty() ? consumesTypes.get(0) : null;
    final MessageBodyReader<T> reader = context.getApplication().getProviders().getMessageBodyReader(entityClass, genericType, annotations, mediaType);
    if (reader != null) {
        final MultivaluedMap<String, String> httpHeaders = context.getHeaders();
        return reader.readFrom(entityClass, genericType, annotations, mediaType, httpHeaders, entityStream);
    }

    throw new InjectException("Unknown entity type (" + entityClass + ")");
}

@SuppressWarnings("unchecked")
public void register(final Class<?> c) {
    if (MessageBodyReader.class.isAssignableFrom(c)) {
        readers.add((Class<MessageBodyReader<?>>) c, MediaTypeUtils.parseMediaTypes(c.getAnnotation(Consumes.class)));
    }

    if (MessageBodyWriter.class.isAssignableFrom(c)) {
        writers.add((Class<MessageBodyWriter<?>>) c, MediaTypeUtils.parseMediaTypes(c.getAnnotation(Produces.class)));
    }

    if (ExceptionMapper.class.isAssignableFrom(c)) {
        exceptionMappers.add((Class<ExceptionMapper<?>>) c, MediaTypeUtils.parseMediaTypes(c.getAnnotation(Produces.class)));
    }

    if (ParamConverterProvider.class.isAssignableFrom(c)) {
        paramConverterProviders.add((ParamConverterProvider) application.get(c));
    }
}

@Override
@SuppressWarnings({ "rawtypes", "unchecked" })
public <T> MessageBodyReader<T> getMessageBodyReader(
        final Class<T> type,
        final Type genericType,
        final Annotation[] annotations,
        final MediaType mediaType) {

    for (final Class<? extends MessageBodyReader<?>> readerClass : readers.get(mediaType)) {
        final MessageBodyReader reader = application.get(readerClass);
        if (reader.isReadable(type, genericType, annotations, mediaType)) {
            return reader;
        }
    }
    return null;
}

@Test
public void shouldRegisterAMultiTypedProviderInstanceWithPriorities() {
    MultiTypedProvider provider = new MultiTypedProvider();
    Map<Class<?>, Integer> priorities = new HashMap<>();
    priorities.put(ClientRequestFilter.class, 500);
    priorities.put(ClientResponseFilter.class, 501);
    priorities.put(MessageBodyReader.class, 502);
    priorities.put(MessageBodyWriter.class, 503);
    priorities.put(ReaderInterceptor.class, 504);
    priorities.put(WriterInterceptor.class, 505);
    priorities.put(ResponseExceptionMapper.class, 506);
    priorities.put(ParamConverterProvider.class, 507);
    RestClientBuilder builder = RestClientBuilder.newBuilder().register(provider, priorities);
    Configuration configuration = builder.getConfiguration();
    assertTrue(configuration.isRegistered(MultiTypedProvider.class), MultiTypedProvider.class + " should be registered");
    assertTrue(configuration.isRegistered(provider), MultiTypedProvider.class + " should be registered");
    Map<Class<?>, Integer> contracts = configuration.getContracts(MultiTypedProvider.class);
    assertEquals(contracts.size(), priorities.size(),
        "There should be "+priorities.size()+" provider types registered");
    for(Map.Entry<Class<?>, Integer> priority : priorities.entrySet()) {
        Integer contractPriority = contracts.get(priority.getKey());
        assertEquals(contractPriority, priority.getValue(), "The priority for "+priority.getKey()+" should be "+priority.getValue());
    }
}

@Test
public void shouldRegisterAMultiTypedProviderClassWithPriorities() {
    Map<Class<?>, Integer> priorities = new HashMap<>();
    priorities.put(ClientRequestFilter.class, 500);
    priorities.put(ClientResponseFilter.class, 501);
    priorities.put(MessageBodyReader.class, 502);
    priorities.put(MessageBodyWriter.class, 503);
    priorities.put(ReaderInterceptor.class, 504);
    priorities.put(WriterInterceptor.class, 505);
    priorities.put(ResponseExceptionMapper.class, 506);
    priorities.put(ParamConverterProvider.class, 507);
    RestClientBuilder builder = RestClientBuilder.newBuilder().register(MultiTypedProvider.class, priorities);
    Configuration configuration = builder.getConfiguration();
    assertTrue(configuration.isRegistered(MultiTypedProvider.class), MultiTypedProvider.class + " should be registered");
    Map<Class<?>, Integer> contracts = configuration.getContracts(MultiTypedProvider.class);
    assertEquals(contracts.size(), priorities.size(),
        "There should be "+priorities.size()+" provider types registered");
    for(Map.Entry<Class<?>, Integer> priority : priorities.entrySet()) {
        Integer contractPriority = contracts.get(priority.getKey());
        assertEquals(contractPriority, priority.getValue(), "The priority for "+priority.getKey()+" should be "+priority.getValue());
    }
}

public boolean configure(final FeatureContext context) {
    final Configuration config = context.getConfiguration();
    final String jsonFeature = CommonProperties.getValue(config.getProperties(), config.getRuntimeType(), InternalProperties.JSON_FEATURE, JSON_FEATURE,
            String.class);
    // Other JSON providers registered.
    if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
        return false;
    }
    // Disable other JSON providers.
    context.property(PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE, config.getRuntimeType()), JSON_FEATURE);
    // Register FastJson.
    if (!config.isRegistered(FastJsonProvider.class)) {
        context.register(FastJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
    }
    return true;
}

@Test
public void testLocateMostRelevantConstructor() {
    ReflectionProvider rp = instance(ReflectionProvider.class);

    Providers providers = instance(Providers.class);
    ProviderFilter providerFilter = instance(ProviderFilter.class);

    Field f = rp.getField(JaxRsResolverTest.class, "genericField3");

    RuntimeDelegate.setInstance(new DefaultRuntimeDelegate());

    MessageBodyReader messageBodyReader = providers.getMessageBodyReader(f.getType(), f.getGenericType(), f.getAnnotations(), MediaType.APPLICATION_XML_TYPE);

    assertNotNull(messageBodyReader);
    assertEquals(PersonMessageBodyReader.class, messageBodyReader.getClass());

    Constructor<?> c = providerFilter.mostRelevantConstructor(messageBodyReader.getClass());
    assertEquals(4, c.getParameterCount());
    assertEquals("public com.geemvc.jaxrs.PersonMessageBodyReader(javax.ws.rs.core.Application,javax.ws.rs.core.UriInfo,javax.ws.rs.core.HttpHeaders,javax.ws.rs.ext.Providers)", c.toString());
}

@Override
  public boolean configure(final FeatureContext context) {

    PluginLoader.INSTANCE.plugins.get().stream()
.filter(module -> module.jacksonFeatureProperties()!=null)
.map(Plugin::jacksonFeatureProperties)
.map(fn->fn.apply(context))
.forEach(map -> {
    addAll(map,context);
});


      JacksonJaxbJsonProvider provider = new JacksonJaxbJsonProvider();
        provider.setMapper(JacksonUtil.getMapper());
          context.register(provider, new Class[]{MessageBodyReader.class, MessageBodyWriter.class});

      return true;
  }

@Override
public Set<Class<?>> getClasses() {
    Set<Class<?>> s = new HashSet<Class<?>>();

    // rest Resources
    Set<Class<? extends RESTResource>> restResourceTypes = this.getRESTResourceTypes();
    if (CollectionUtils.hasData(restResourceTypes)) s.addAll(restResourceTypes);

    // Request received objects mappers: transforms Java->XML for REST methods param types
    Set<Class<? extends MessageBodyReader<?>>> reqReceivedTypesMappers = this.getRequestReceivedTypesMappers();
    if (CollectionUtils.hasData(reqReceivedTypesMappers)) s.addAll(reqReceivedTypesMappers);

    // Response sent objects mappers: transforms Java->XML for REST methods return types
    Set<Class<? extends MessageBodyWriter<?>>> respSentTypesMappers = this.getResponseSentTypesMappers();
    if (CollectionUtils.hasData(respSentTypesMappers)) s.addAll(respSentTypesMappers);

    // Exception Mappers
    Set<Class<? extends ExceptionMapper<?>>> expsMappers = this.getExceptionsMappers();
    if (CollectionUtils.hasData(expsMappers)) s.addAll(expsMappers);        

    return s;
}

@Override
public JsonWebKeySet readFrom(final Class<JsonWebKeySet> type,
        final Type genericType,
        final Annotation[] annotations,
        final MediaType mediaType,
        final MultivaluedMap<String, String> httpHeaders,
        final InputStream inputStream) throws IOException,
        WebApplicationException {

    final JsonArray keysArray = Json.createReader(inputStream)
            .readObject()
            .getJsonArray("keys");

    final JsonWebKeySet keySet = new JsonWebKeySet();
    final MessageBodyReader<JsonWebKey> reader = providers.getMessageBodyReader(JsonWebKey.class, JsonWebKey.class, annotations, mediaType);
    for (final JsonValue key : keysArray) {
        final InputStream keyStream = new ByteArrayInputStream(key.toString()
                .getBytes(CharSets.UTF8));
        final JsonWebKey jsonWebKey = reader.readFrom(JsonWebKey.class, null, annotations, mediaType, null, keyStream);
        keySet.add(jsonWebKey);
    }

    return keySet;
}

public boolean configure(final FeatureContext context) {
    final Configuration config = context.getConfiguration();
    final String jsonFeature = CommonProperties.getValue(config.getProperties(), config.getRuntimeType(), InternalProperties.JSON_FEATURE, JSON_FEATURE,
            String.class);
    // Other JSON providers registered.
    if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
        return false;
    }
    // Disable other JSON providers.
    context.property(PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE, config.getRuntimeType()), JSON_FEATURE);
    // Register FastJson.
    if (!config.isRegistered(FastJsonProvider.class)) {
        context.register(FastJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
    }
    return true;
}

@Test
public void shouldGetContentAsList() throws Exception {
    List<String> list = Lists.newArrayList("test1", "test2", "test3");
    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(String.class), eq(String.class), eq(new Annotation[]{}), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenThrow(IOException.class);
    when(reader.readFrom(eq(List.class), any(Type.class), eq(new Annotation[]{}), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(list);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(String.class, String.class, new Annotation[]{}, mediaType)).thenReturn(reader);
    when(providers.getMessageBodyReader(List.class, ResourceUtil.listType(String.class).getType(), new Annotation[]{}, mediaType)).thenReturn(reader);
    Object content = ResourceUtil.getContent(bytes, providers, httpHeaders, String.class);
    assertTrue(content instanceof List);
    assertEquals(content, list);
}

@Test
public void shouldGetContentAsMap() throws Exception {
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("key1", "value1");
    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(Map.class), eq(Map.class), eq(new Annotation[]{}), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(map);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(Map.class, Map.class, new Annotation[]{}, mediaType)).thenReturn(reader);
    Object content = ResourceUtil.getContent(bytes, providers, httpHeaders, Map.class);
    assertTrue(content instanceof Map);
    assertEquals(content, map);
}

@Test
public void shouldInvokeMethodWithArguments() throws Throwable {
    Map<String, Object> content = new HashMap<String, Object>();
    content.put("value", "test123");
    content.put("someNumber", 1L);
    Map<String, Object> values = new HashMap<String, Object>();
    DummyModel model = new DummyModel();

    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(Map.class), eq(Map.class), isNull(Annotation[].class), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(content);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(Map.class, Map.class, null, mediaType)).thenReturn(reader);

    assertEquals(ResourceUtil.invokeAction(model, "dummyActionWithArguments", Lists.newArrayList(new ParameterMetaData("value", "value", String.class), 
            new ParameterMetaData("someNumber", "someNumber", Long.class)), bytes, providers, httpHeaders, values), "dummyActionWithArguments");
}

@Test
public void shouldInvokeMethodWithArgumentsAndModel() throws Throwable {
    Map<String, Object> content = new HashMap<String, Object>();
    content.put("value", "test123");
    content.put("someNumber", 1L);
    Map<String, Object> values = new HashMap<String, Object>();
    values.put("anotherModel", new DummyModel());
    DummyModel model = new DummyModel();

    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(Map.class), eq(Map.class), isNull(Annotation[].class), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(content);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(Map.class, Map.class, null, mediaType)).thenReturn(reader);

    assertEquals(ResourceUtil.invokeAction(model, "dummyActionWithArgumentsAndModel", Lists.newArrayList(new ParameterMetaData("anotherModel", "anotherModel", DummyModel.class),
            new ParameterMetaData("value", "value", String.class), new ParameterMetaData("someNumber", "someNumber", Long.class)), bytes, providers, httpHeaders, values), "dummyActionWithArgumentsAndModel");
}

@Test(expectedExceptions=MinnalInstrumentationException.class)
public void shouldThrowExceptionIfMethodNotFound() throws Throwable {
    Map<String, Object> values = new HashMap<String, Object>();
    DummyModel model = new DummyModel();

    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(Map.class), eq(Map.class), isNull(Annotation[].class), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(values);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(Map.class, Map.class, null, mediaType)).thenReturn(reader);

    ResourceUtil.invokeAction(model, "nonExistingMethod", Lists.newArrayList(new ParameterMetaData("anotherModel", "anotherModel", DummyModel.class)), bytes, providers, httpHeaders, values);
}

@Test(expectedExceptions=IllegalStateException.class)
public void shouldThrowExceptionIfMethodThrowsAnyException() throws Throwable {
    Map<String, Object> values = new HashMap<String, Object>();
    DummyModel model = new DummyModel();

    byte[] bytes = new byte[10];
    MediaType mediaType = mock(MediaType.class);
    HttpHeaders httpHeaders = mock(HttpHeaders.class);
    when(httpHeaders.getMediaType()).thenReturn(mediaType);
    MessageBodyReader reader = mock(MessageBodyReader.class);
    when(reader.readFrom(eq(Map.class), eq(Map.class), isNull(Annotation[].class), eq(mediaType), isNull(MultivaluedMap.class), any(InputStream.class))).thenReturn(values);
    Providers providers = mock(Providers.class);
    when(providers.getMessageBodyReader(Map.class, Map.class, null, mediaType)).thenReturn(reader);

    ResourceUtil.invokeAction(model, "throwsException", new ArrayList<ParameterMetaData>(), bytes, providers, httpHeaders, values);
}

/**
 * Create a new UriTemplateApplication.
 * 
 */
public UriTemplateApplication()
{
   registerClasses(UriTemplateResource.class);
   registerClasses(SchemaResource.class);
   register(new Feature()
   {

      @Override
      public boolean configure(final FeatureContext context)
      {
         final String disableMoxy = CommonProperties.MOXY_JSON_FEATURE_DISABLE + '.'
               + context.getConfiguration().getRuntimeType().name().toLowerCase();
         context.property(disableMoxy, true);

         context.register(JacksonJaxbJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
         return true;
      }

   });
}

@Test
public void testConfiguration() throws Exception {
    logger.info("start REST Configuration test");
    Client client = newClient();
    Configuration configuration = client.getConfiguration();
    Set<Class<?>> classes = configuration.getClasses();
    for (Class<?> clazz : classes) {
        assertTrue("verify if the class is a rest component or provider",
                MessageBodyReader.class.isAssignableFrom(clazz) || MessageBodyWriter.class.isAssignableFrom(clazz)
                        || clazz.isAnnotationPresent(Provider.class)
                        || DynamicFeature.class.isAssignableFrom(clazz));
        Map<Class<?>, Integer> contracts = configuration.getContracts(clazz);
        assertFalse("each class has different contracts", contracts.isEmpty());
        for (Class<?> contract : contracts.keySet()) {
            int value = contracts.get(contract);
            assertTrue("verify if the contract is a rest component or provider",
                    value == 5000 || value == 4000 || value == 3000 || value == 0);
        }
    }
    Set<Object> instances = configuration.getInstances();
    assertTrue("by default there are not instances", instances.isEmpty());
    Map<String, Object> properties = configuration.getProperties();
    assertTrue("by default there are not properties", properties.isEmpty());
    MyComponent myComponent = new MyComponent();
    client.register(myComponent);
    instances = configuration.getInstances();
    assertFalse("Added instance", instances.isEmpty());
    for (Object instance : instances) {
        if (instance instanceof MyComponent)
            assertTrue("MyComponent is registered and active", configuration.isEnabled((Feature) instance));
    }
    assertEquals("Added property through MyComponent", 1, properties.size());
    boolean property = (Boolean) properties.get("configured_myComponent");
    assertEquals("configured_myComponent ok!", true, property);
    assertEquals("type CLIENT by default", CLIENT, configuration.getRuntimeType());
}

public boolean configure(FeatureContext context) {
    context.property("jersey.config.server.disableMoxyJson", Boolean.valueOf(true));
    Configuration config = context.getConfiguration();
    context.property(getPropertyNameForRuntime("jersey.config.jsonFeature", config.getRuntimeType()), JSON_FEATURE);
    if (!config.isRegistered(JacksonJaxbJsonProvider.class)) {
        context.register(JsonParseExceptionMapper.class);
        context.register(JsonMappingExceptionMapper.class);
        context.register(JacksonJaxbJsonProvider.class, new Class[]{MessageBodyReader.class, MessageBodyWriter.class});
    }

    return true;
}

@Test
@SuppressWarnings({ "unchecked", "rawtypes" })
public void testReadMap() throws IOException {
    final String json = "{\"key\":\"value\"}";
    final ByteArrayInputStream inputStream = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));
    final MessageBodyReader<Map> mapReader = (MessageBodyReader<Map>) reader;
    final Map<String, String> map = mapReader.readFrom(Map.class, null, null, null, null, inputStream);
    assertEquals("value", map.get("key"));
}

@Test
@SuppressWarnings("unchecked")
public void testReadWidget() throws IOException {
    final String json = "{\"id\":\"123\",\"value\":\"hello\"}";
    final ByteArrayInputStream inputStream = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));
    final MessageBodyReader<Widget> widgetReader = (MessageBodyReader<Widget>) reader;
    final Widget widget = widgetReader.readFrom(Widget.class, null, null, null, null, inputStream);
    assertEquals("123", widget.id);
    assertEquals("hello", widget.value);
}

@Test(expected = BadRequestException.class)
@SuppressWarnings("unchecked")
public void testReaderException() throws IOException {
    final String json = "";
    final ByteArrayInputStream inputStream = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));
    final MessageBodyReader<Object> objReader = (MessageBodyReader<Object>) reader;
    objReader.readFrom(Object.class, null, null, null, null, inputStream);
}

@Override
public boolean configure(FeatureContext context) {
  final Configuration config = context.getConfiguration();

  final String jsonFeature = CommonProperties.getValue(config.getProperties(), config.getRuntimeType(),
      InternalProperties.JSON_FEATURE, JSON_FEATURE, String.class);
  // Other JSON providers registered.
  if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
    return false;
  }

  // Disable other JSON providers.
  context.property(PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE, config.getRuntimeType()),
      JSON_FEATURE);

  // Register Jackson.
  if (!config.isRegistered(JacksonJaxbJsonProvider.class)) {
    // add the Jackson exception mappers with application/json output
    context.register(JsonMappingExceptionMapper.class);
    context.register(JsonParseExceptionMapper.class);

    if (EntityFilteringFeature.enabled(config)) {
      context.register(JacksonFilteringFeature.class);
      context.register(FilteringJacksonJaxbJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
    } else {
      context.register(JacksonJaxbJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
    }
  }

  return true;
}

protected SelectServer unmarshalJsonStringObject(String jsonStringObject) throws java.io.IOException {
    MessageBodyReader<SelectServer> messageBodyReader = getJsonMessageBodyReader();
    ByteArrayInputStream bais = new ByteArrayInputStream(jsonStringObject.getBytes());
    SelectServer responseObject = messageBodyReader.readFrom(SelectServer.class, SelectServer.class, SelectServer.class.getAnnotations(), null, null, bais);
    bais.close();
    return responseObject;
}

@Test
public void shouldRegisterAMultiTypedProviderInstance() {
    MultiTypedProvider provider = new MultiTypedProvider();
    Class[] providerTypes = {ClientRequestFilter.class, ClientResponseFilter.class,
        MessageBodyReader.class, MessageBodyWriter.class, ReaderInterceptor.class, WriterInterceptor.class,
        ResponseExceptionMapper.class, ParamConverterProvider.class};
    RestClientBuilder builder = RestClientBuilder.newBuilder().register(provider, providerTypes);
    Configuration configuration = builder.getConfiguration();
    assertTrue(configuration.isRegistered(MultiTypedProvider.class), MultiTypedProvider.class + " should be registered");
    assertTrue(configuration.isRegistered(provider), MultiTypedProvider.class + " should be registered");
    assertEquals(configuration.getContracts(MultiTypedProvider.class).size(), providerTypes.length,
        "There should be "+providerTypes.length+" provider types registered");
}

@Test
public void shouldRegisterAMultiTypedProviderClass() {
    Class[] providerTypes = {ClientRequestFilter.class, ClientResponseFilter.class,
        MessageBodyReader.class, MessageBodyWriter.class, ReaderInterceptor.class, WriterInterceptor.class,
        ResponseExceptionMapper.class, ParamConverterProvider.class};
    RestClientBuilder builder = RestClientBuilder.newBuilder().register(MultiTypedProvider.class, providerTypes);
    Configuration configuration = builder.getConfiguration();
    assertTrue(configuration.isRegistered(MultiTypedProvider.class), MultiTypedProvider.class + " should be registered");
    assertEquals(configuration.getContracts(MultiTypedProvider.class).size(), providerTypes.length,
        "There should be "+providerTypes.length+" provider types registered");
}

@Reference(
    cardinality = MULTIPLE, policyOption = GREEDY,
    target = "(liferay.apio.architect.message.body.reader=true)"
)
public <T> void setMessageBodyReader(
    ServiceReference<MessageBodyReader<T>> serviceReference,
    MessageBodyReader<T> messageBodyReader) {

    _messageBodyReaders.add(messageBodyReader);
}