Java Code Examples for com.fasterxml.jackson.databind.type.CollectionType

@Override
public Schema<?> resolve(AnnotatedType type, ModelConverterContext context, Iterator<ModelConverter> chain) {
	if (chain.hasNext() && type != null && type.getType() instanceof CollectionType
			&& "_embedded".equalsIgnoreCase(type.getPropertyName())) {
		Schema<?> schema = chain.next().resolve(type, context, chain);
		if (schema instanceof ArraySchema) {
			Class<?> entityType = getEntityType(type);
			String entityClassName = linkRelationProvider.getCollectionResourceRelFor(entityType).value();

			return new ObjectSchema()
					.name("_embedded")
					.addProperties(entityClassName, schema);
		}
	}
	return chain.hasNext() ? chain.next().resolve(type, context, chain) : null;
}
 

/** Reads data source names from Druid. */
    Set<String> tableNames() {
        final Map<String, String> requestHeaders =
            ImmutableMap.of("Content-Type", "application/json");
        final String data = null;
        final String url = coordinatorUrl + "/druid/coordinator/v1/metadata/datasources";
//        if (CalcitePrepareImpl.DEBUG) {
//            System.out.println("Druid: table names" + data + "; " + url);
//        }
        try (InputStream in0 = post(url, data, requestHeaders, 10000, 1800000);
            InputStream in = traceResponse(in0)) {
            final ObjectMapper mapper = new ObjectMapper();
            final CollectionType listType =
                mapper.getTypeFactory().constructCollectionType(List.class,
                    String.class);
            final List<String> list = mapper.readValue(in, listType);
            return ImmutableSet.copyOf(list);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
 

@Test
public void testDeleteOnFile() throws IOException {
    TestDataProviderEngine engine = new TestDataProviderEngine();
    engine.setResourceLoader(new DefaultResourceLoader());
    engine.setPathOnDisk(testFolder.getRoot() + "/");

    N2oTestDataProvider provider = new N2oTestDataProvider();
    provider.setFile(testFile.getName());

    //Удаление данных
    provider.setOperation(delete);

    Map<String, Object> inParamsForDelete = new LinkedHashMap<>();
    inParamsForDelete.put("id", 1L);

    engine.invoke(provider, inParamsForDelete);

    //Проверка, что после delete, json файл содержит ожидаемые данные
    ObjectMapper objectMapper = new ObjectMapper();
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, HashMap.class);
    List<Map> result = objectMapper.readValue(testFile, collectionType);

    assertThat(result.size(), is(0));
}
 

/**
 * @param logs
 * @return
 * @throws BaseException
 * @throws IOException
 */
public String decodeEventReturnJson(String logs) throws BaseException, IOException {
    // log json trans to list log
    ObjectMapper mapper = ObjectMapperFactory.getObjectMapper();
    CollectionType listType =
            mapper.getTypeFactory().constructCollectionType(ArrayList.class, Log.class);
    @SuppressWarnings("unchecked")
    List<Log> logList = (List<Log>) mapper.readValue(logs, listType);

    // decode event
    Map<String, List<List<EventResultEntity>>> resultEntityMap =
            decodeEventReturnObject(logList);
    String result = mapper.writeValueAsString(resultEntityMap);

    return result;
}
 

public MapDeserializerManager(MapCustomizationFactory factory) {
  /**
   * The first parameter is just a placeholder, won't be used.
   * So any element type is ok.
   */
  super(
      CollectionType.construct(ArrayList.class, null, null, null, //
          SimpleType.constructUnsafe(Object.class)), //
      null, null, new ValueInstantiator() {
        @SuppressWarnings("rawtypes")
        @Override
        public Object createUsingDefault(DeserializationContext ctxt) throws IOException {
          return new ArrayList();
        }
      });

  this.factory = factory;
}
 

@Override
public void setupModule(final SetupContext context) {
    super.setupModule(context);
    context.addBeanDeserializerModifier(new BeanDeserializerModifier() {
        @Override
        public JsonDeserializer<?> modifyCollectionDeserializer(final DeserializationConfig config,
                                                                final CollectionType type,
                                                                final BeanDescription beanDesc,
                                                                final JsonDeserializer<?> deserializer) {
            if (deserializer instanceof CollectionDeserializer) {
                return new ListDeserializer((CollectionDeserializer) deserializer);
            } else {
                return super.modifyCollectionDeserializer(config, type, beanDesc,
                        deserializer);
            }
        }
    });
}
 

@Test
public void testCustomDeserializerForCustomLists() throws Exception {
    final CloseableHttpResponse response = mock(CloseableHttpResponse.class);
    when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE);
    when(response.getEntity()).thenReturn(new StringEntity("{results: [{field : \"SomeValue\"}], results_count: 1}"));
    final CloseableHttpClient httpClient = mock(CloseableHttpClient.class);
    when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response);
    final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost");
    final Class<? extends CollectionType> clazzListOfTestPojo = new ObjectMapper().getTypeFactory().constructCollectionType(List.class, TestPojo.class).getClass();
    final RESTServiceConnector connector = new RESTServiceConnector.Builder()
            .client(restClient)
            .classToDeserializerEntry(clazzListOfTestPojo, new CustomListDeserializer<TestPojoDeserializer>())
            .build();

    connector.executeRetrieveObject(TestPojo.class, "/somepath");
}
 

private Map<String, ContainerQuota> getChangedContainers( final String quotaContainers ) throws java.io.IOException
{
    Map<String, ContainerQuota> changedContainersFiltered = new HashMap<>();
    TypeFactory typeFactory = mapper.getTypeFactory();
    CollectionType arrayType = typeFactory.constructCollectionType( ArrayList.class, ChangedContainerDto.class );
    List<ChangedContainerDto> changedContainers = mapper.readValue( quotaContainers, arrayType );
    for ( ChangedContainerDto cont : changedContainers )
    {
        ContainerQuotaDto containerQuotaDto = cont.getQuota();
        ContainerSize containerSize = containerQuotaDto.getContainerSize();
        ContainerQuota defaultQuota = ContainerSize.getDefaultContainerQuota( containerSize );
        if ( containerSize == ContainerSize.CUSTOM )
        {
            defaultQuota = containerQuotaDto.getContainerQuota();
        }

        changedContainersFiltered.put( cont.getHostId(), defaultQuota );
    }
    return changedContainersFiltered;
}
 

/** Reads data source names from Druid. */
Set<String> tableNames() {
  final Map<String, String> requestHeaders =
      ImmutableMap.of("Content-Type", "application/json");
  final String data = null;
  final String url = coordinatorUrl + "/druid/coordinator/v1/metadata/datasources";
  if (CalciteSystemProperty.DEBUG.value()) {
    System.out.println("Druid: table names" + data + "; " + url);
  }
  try (InputStream in0 = post(url, data, requestHeaders, 10000, 1800000);
       InputStream in = traceResponse(in0)) {
    final ObjectMapper mapper = new ObjectMapper();
    final CollectionType listType =
        mapper.getTypeFactory().constructCollectionType(List.class,
            String.class);
    final List<String> list = mapper.readValue(in, listType);
    return ImmutableSet.copyOf(list);
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}
 

@Test
public void serderJson1() throws IOException {
    final CollectionType type = JSONTestHelper.getMapper().getTypeFactory().constructCollectionType(List.class, Container.class);

    final List<Container> containers = testRoundTrip(RemoteApiVersion.VERSION_1_22,
            "containers/json/filter1.json",
            type
    );

    assertThat(containers.size(), equalTo(1));

    final Container container = containers.get(0);

    assertThat(container.getImageId(),
            equalTo("sha256:0cb40641836c461bc97c793971d84d758371ed682042457523e4ae701efe7ec9"));
    assertThat(container.getSizeRootFs(), equalTo(1113554L));

    final ContainerHostConfig hostConfig = container.getHostConfig();
    assertThat(hostConfig, notNullValue());
    assertThat(hostConfig.getNetworkMode(), equalTo("default"));
}
 

@Test
public void testCustomDeserializerForCustomLists() throws Exception {
    final CloseableHttpResponse response = mock(CloseableHttpResponse.class);
    when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE);
    when(response.getEntity()).thenReturn(new StringEntity("{results: [{field : \"SomeValue\"}], results_count: 1}"));
    final CloseableHttpClient httpClient = mock(CloseableHttpClient.class);
    when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response);
    final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost");
    final Class<? extends CollectionType> clazzListOfTestPojo = new ObjectMapper().getTypeFactory().constructCollectionType(List.class, TestPojo.class).getClass();
    final RESTServiceConnector connector = new RESTServiceConnector.Builder()
        .client(restClient)
        .classToDeserializerEntry(clazzListOfTestPojo, new CustomListDeserializer<TestPojoDeserializer>())
        .build();

    connector.executeRetrieveObject(TestPojo.class, "/somepath");
}
 

private LinkedHashSet<String> getPersistedCache() {
  String serialized = prefs.getString(preferenceName, "[]");
  try {
    CollectionType collectionType = TypeFactory.defaultInstance()
                                               .constructCollectionType(LinkedHashSet.class, String.class);
    return JsonUtils.getMapper().readValue(serialized, collectionType);
  } catch (IOException e) {
    Log.w(TAG, e);
    return new LinkedHashSet<>();
  }
}
 

/**
 * Gets entity type.
 *
 * @param type the type 
 * @return the entity type
 */
private Class<?> getEntityType(AnnotatedType type) {
	Class<?> containerEntityType = ((CollectionType) (type.getType())).getContentType().getRawClass();
	if (containerEntityType.isAssignableFrom(EntityModel.class)) {
		TypeBindings typeBindings = ((CollectionType) type.getType()).getContentType().getBindings() ;
		if (!CollectionUtils.isEmpty(typeBindings.getTypeParameters()))
			return typeBindings.getBoundType(0).getRawClass();
	}
	return containerEntityType;
}
 

@Override
public JsonDeserializer<?> createContextual( DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStreamDeserializer deserializer = new DataStreamDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

@Override
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStoreDeserializer deserializer = new DataStoreDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

@Override
public JsonDeserializer<?> createContextual( DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStreamDeserializer deserializer = new DataStreamDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

@Override
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStoreDeserializer deserializer = new DataStoreDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

@Override
public JsonDeserializer<?> createContextual( DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStreamDeserializer deserializer = new DataStreamDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

@Override
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException {
    CollectionType collectionType = ctxt.getTypeFactory().constructCollectionType(List.class, property.getType().containedType(0));
    DataStoreDeserializer deserializer = new DataStoreDeserializer();
    deserializer.collectionType = collectionType;
    return deserializer;
}
 

private static <T> T fromJSONArray(ObjectMapper mapper, String json, Class<T> expectedType) {
  try {
    CollectionType arrayType = mapper.getTypeFactory().constructCollectionType(List.class, expectedType);
    return mapper.readerFor(arrayType).readValue(json);
  } catch (IOException e) {
    throw new IllegalArgumentException("Cannot unmarshal JSON as " + expectedType.getSimpleName(), e);
  }
}
 

private List<DataSet> loadJson(InputStream is, PrimaryKeyType primaryKeyType, String primaryKeyFieldId) throws IOException {
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, DataSet.class);
    List<DataSet> dataList = objectMapper.readValue(is, collectionType);
    for (DataSet data : dataList) {
        if (data.containsKey(primaryKeyFieldId) && integer.equals(primaryKeyType))
            data.put(primaryKeyFieldId, ((Number) data.get(primaryKeyFieldId)).longValue());
    }
    return dataList;
}
 

@Test
public void testCreateOnFile() throws IOException {
    TestDataProviderEngine engine = new TestDataProviderEngine();
    engine.setResourceLoader(new DefaultResourceLoader());
    engine.setPathOnDisk(testFolder.getRoot() + "/");

    N2oTestDataProvider provider = new N2oTestDataProvider();
    provider.setFile(testFile.getName());

    //Добавление новых данных
    provider.setOperation(create);

    Map<String, Object> inParamsForCreate = new LinkedHashMap<>();
    inParamsForCreate.put("id", 9L);
    inParamsForCreate.put("name", "test9");
    inParamsForCreate.put("type", "9");

    engine.invoke(provider, inParamsForCreate);

    //Проверка, что после create, json файл содержит ожидаемые данные
    ObjectMapper objectMapper = new ObjectMapper();
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, HashMap.class);
    List<Map> result = objectMapper.readValue(testFile, collectionType);

    assertThat(result.size(), is(2));
    assertThat(result.get(0).get("id"), is(9));
    assertThat(result.get(0).get("name"), is("test9"));
    assertThat(result.get(0).get("type"), is("9"));
    assertThat(result.get(1).get("id"), is(1));
    assertThat(result.get(1).get("name"), is("test1"));
    assertThat(result.get(1).get("type"), is("1"));
}
 

@Test
public void testUpdateOnFile() throws IOException {
    TestDataProviderEngine engine = new TestDataProviderEngine();
    engine.setResourceLoader(new DefaultResourceLoader());
    engine.setPathOnDisk(testFolder.getRoot() + "/");

    N2oTestDataProvider provider = new N2oTestDataProvider();
    provider.setFile(testFile.getName());

    //Обновление данных
    provider.setOperation(update);

    Map<String, Object> inParamsForUpdate = new LinkedHashMap<>();
    inParamsForUpdate.put("id", 1L);
    inParamsForUpdate.put("name", "test9");
    inParamsForUpdate.put("type", "9");

    engine.invoke(provider, inParamsForUpdate);

    //Проверка, что после update, json файл содержит ожидаемые данные
    ObjectMapper objectMapper = new ObjectMapper();
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, HashMap.class);
    List<Map> result = objectMapper.readValue(testFile, collectionType);

    assertThat(result.size(), is(1));
    assertThat(result.get(0).get("id"), is(1));
    assertThat(result.get(0).get("name"), is("test9"));
    assertThat(result.get(0).get("type"), is("9"));
}
 

@Test
public void testUpdateFieldOnFile() throws IOException {
    TestDataProviderEngine engine = new TestDataProviderEngine();
    engine.setResourceLoader(new DefaultResourceLoader());
    engine.setPathOnDisk(testFolder.getRoot() + "/");

    N2oTestDataProvider provider = new N2oTestDataProvider();
    provider.setFile(testFile.getName());

    //Обновление данных поля
    provider.setOperation(updateField);

    Map<String, Object> inParamsForUpdate = new LinkedHashMap<>();
    inParamsForUpdate.put("id", 1L);
    inParamsForUpdate.put("key", "name");
    inParamsForUpdate.put("value", "newName");

    engine.invoke(provider, inParamsForUpdate);

    //Проверка, что после updateField, json файл содержит ожидаемые данные
    ObjectMapper objectMapper = new ObjectMapper();
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, HashMap.class);
    List<Map> result = objectMapper.readValue(testFile, collectionType);

    assertThat(result.size(), is(1));
    assertThat(result.get(0).get("id"), is(1));
    assertThat(result.get(0).get("name"), is("newName"));
    assertThat(result.get(0).get("type"), is("1"));
}
 

@Test
public void testCreateOnEmptyFile() throws IOException {
    TestDataProviderEngine engine = new TestDataProviderEngine();
    engine.setResourceLoader(new DefaultResourceLoader());
    engine.setPathOnDisk(testFolder.getRoot() + "/");

    N2oTestDataProvider provider = new N2oTestDataProvider();
    provider.setFile(emptyFile.getName());

    //Добавление новых данных в пустой файл
    provider.setOperation(create);

    Map<String, Object> inParamsForCreate = new LinkedHashMap<>();
    inParamsForCreate.put("name", "test10");
    inParamsForCreate.put("type", "10");

    engine.invoke(provider, inParamsForCreate);

    //Проверка, что после create, json файл содержит ожидаемые данные
    ObjectMapper objectMapper = new ObjectMapper();
    TypeFactory typeFactory = objectMapper.getTypeFactory();
    CollectionType collectionType = typeFactory.constructCollectionType(
            List.class, HashMap.class);
    List<Map> result = objectMapper.readValue(emptyFile, collectionType);

    assertThat(result.size(), is(1));
    assertThat(result.get(0).get("id"), is(1));
    assertThat(result.get(0).get("name"), is("test10"));
    assertThat(result.get(0).get("type"), is("10"));
}
 

public Mono<Set<Booking>> bookingOfFlight(String bookingId) {
  return discoveryService.serviceAddressFor(this.bookingService).next().flatMap(
      address -> this.webClient.mutate()
          .baseUrl(address + "/" + this.bookingServiceApiPath + "/" + bookingId).build().get()
          .exchange()
          .flatMap(clientResponse ->
              {
                final CollectionType type = mapper.getTypeFactory().
                    constructCollectionType(Set.class, Booking.class);
                return clientResponse.bodyToMono(ParameterizedTypeReference.forType(type));
              }
          ));
}
 

public Mono<Set<Booking>> bookingOfFlight(String bookingId) {
  return discoveryService.serviceAddressFor(this.bookingService).next().flatMap(
      address -> this.webClient.mutate()
          .baseUrl(address + "/" + this.bookingServiceApiPath + "/" + bookingId).build().get()
          .exchange()
          .flatMap(clientResponse ->
              {
                final CollectionType type = mapper.getTypeFactory().
                    constructCollectionType(Set.class, Booking.class);
                return clientResponse.bodyToMono(ParameterizedTypeReference.forType(type));
              }
          ));
}
 

public Mono<Set<Booking>> bookingOfFlight(String bookingId) {
  return discoveryService.serviceAddressFor(this.bookingService).next().flatMap(
      address -> this.webClient.mutate()
          .baseUrl(address + "/" + this.bookingServiceApiPath + "/" + bookingId).build().get()
          .exchange()
          .flatMap(clientResponse ->
              {
                final CollectionType type = mapper.getTypeFactory().
                    constructCollectionType(Set.class, Booking.class);
                return clientResponse.bodyToMono(ParameterizedTypeReference.forType(type));
              }
          ));
}
 

public MapDeserializer(JavaType pairType) {
  super(
      CollectionType.construct(ArrayList.class, null, null, null, pairType), //
      null, null, new ValueInstantiator() {
        @Override
        public Object createUsingDefault(DeserializationContext ctxt) throws IOException {
          return new ArrayList();
        }
      });
}
 

@Override
public JsonDeserializer<?> findCollectionDeserializer(CollectionType type, DeserializationConfig config, BeanDescription beanDesc,
                                                      TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer)
        throws JsonMappingException {
    for (Deserializers deserializers : deserializersList) {
        JsonDeserializer<?> deserializer = deserializers.findCollectionDeserializer(type, config, beanDesc, elementTypeDeserializer, elementDeserializer);
        if (deserializer != null) {
            return deserializer;
        }
    }
    return null;
}