org.codehaus.jackson.map.ObjectWriter Java Examples

protected void getToolConsumerProfile(HttpServletRequest request,
		HttpServletResponse response,String profile_id)
{
	// Map<String,Object> deploy = ltiService.getDeployForConsumerKeyDao(profile_id);
	Map<String,Object> deploy = null;

	ToolConsumer consumer = buildToolConsumerProfile(request, deploy, profile_id);

	ObjectMapper mapper = new ObjectMapper();
	try {
		// http://stackoverflow.com/questions/6176881/how-do-i-make-jackson-pretty-print-the-json-content-it-generates
		ObjectWriter writer = mapper.defaultPrettyPrintingWriter();
		// ***IMPORTANT!!!*** for Jackson 2.x use the line below instead of the one above:
		// ObjectWriter writer = mapper.writer().withDefaultPrettyPrinter();
		// System.out.println(mapper.writeValueAsString(consumer));
		response.setContentType(APPLICATION_JSON);
		PrintWriter out = response.getWriter();
		out.println(writer.writeValueAsString(consumer));
		// System.out.println(writer.writeValueAsString(consumer));
	}
	catch (Exception e) {
		e.printStackTrace();
	}
}
 

private static void generateSLSLoadFile(String inputFile, String outputFile)
        throws IOException {
  Reader input = new FileReader(inputFile);
  try {
    Writer output = new FileWriter(outputFile);
    try {
      ObjectMapper mapper = new ObjectMapper();
      ObjectWriter writer = mapper.writerWithDefaultPrettyPrinter();
      Iterator<Map> i = mapper.readValues(
              new JsonFactory().createJsonParser(input), Map.class);
      while (i.hasNext()) {
        Map m = i.next();
        output.write(writer.writeValueAsString(createSLSJob(m)) + EOL);
      }
    } finally {
      output.close();
    }
  } finally {
    input.close();
  }
}
 

@SuppressWarnings("unchecked")
private static void generateSLSNodeFile(String outputFile)
        throws IOException {
  Writer output = new FileWriter(outputFile);
  try {
    ObjectMapper mapper = new ObjectMapper();
    ObjectWriter writer = mapper.writerWithDefaultPrettyPrinter();
    for (Map.Entry<String, Set<String>> entry : rackNodeMap.entrySet()) {
      Map rack = new LinkedHashMap();
      rack.put("rack", entry.getKey());
      List nodes = new ArrayList();
      for (String name : entry.getValue()) {
        Map node = new LinkedHashMap();
        node.put("node", name);
        nodes.add(node);
      }
      rack.put("nodes", nodes);
      output.write(writer.writeValueAsString(rack) + EOL);
    }
  } finally {
    output.close();
  }
}
 

private static void generateSLSLoadFile(String inputFile, String outputFile)
        throws IOException {
  Reader input = new FileReader(inputFile);
  try {
    Writer output = new FileWriter(outputFile);
    try {
      ObjectMapper mapper = new ObjectMapper();
      ObjectWriter writer = mapper.writerWithDefaultPrettyPrinter();
      Iterator<Map> i = mapper.readValues(
              new JsonFactory().createJsonParser(input), Map.class);
      while (i.hasNext()) {
        Map m = i.next();
        output.write(writer.writeValueAsString(createSLSJob(m)) + EOL);
      }
    } finally {
      output.close();
    }
  } finally {
    input.close();
  }
}
 

@SuppressWarnings("unchecked")
private static void generateSLSNodeFile(String outputFile)
        throws IOException {
  Writer output = new FileWriter(outputFile);
  try {
    ObjectMapper mapper = new ObjectMapper();
    ObjectWriter writer = mapper.writerWithDefaultPrettyPrinter();
    for (Map.Entry<String, Set<String>> entry : rackNodeMap.entrySet()) {
      Map rack = new LinkedHashMap();
      rack.put("rack", entry.getKey());
      List nodes = new ArrayList();
      for (String name : entry.getValue()) {
        Map node = new LinkedHashMap();
        node.put("node", name);
        nodes.add(node);
      }
      rack.put("nodes", nodes);
      output.write(writer.writeValueAsString(rack) + EOL);
    }
  } finally {
    output.close();
  }
}
 

/**
 * Generate the JSON String for StateTransitionThrottleConfig.
 * @return Json String for this config.
 */
public String toJSON() {
  Map<String, String> configMap = new HashMap<>();
  configMap.put(ConfigProperty.REBALANCE_TYPE.name(), _rebalanceType.name());
  configMap.put(ConfigProperty.THROTTLE_SCOPE.name(), _throttleScope.name());
  configMap.put(ConfigProperty.MAX_PARTITION_IN_TRANSITION.name(),
      String.valueOf(_maxPartitionInTransition));

  String jsonStr = null;
  try {
    ObjectWriter objectWriter = OBJECT_MAPPER.writer();
    jsonStr = objectWriter.writeValueAsString(configMap);
  } catch (IOException e) {
    logger.error("Failed to convert config map to JSON object! {}", configMap);
  }

  return jsonStr;
}
 

private void broadcastByActivity(User owner, Activity activity, BaseProjectItem originalItem, BaseProjectItem updatedItem)
        throws IOException {
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.getSerializationConfig().setSerializationInclusion(Inclusion.NON_NULL);
    ObjectWriter ow = objectMapper.writer().withDefaultPrettyPrinter();
    activity.setSubscribers(userService.getUserByProjectId(activity.getProjectId()));
    activity.setAttachObject((BaseProjectItem)identifiableManager.getIdentifiableByTypeAndId(activity.getAttachType(),
            activity.getAttachId()));
    String message = "";
    try {
        message = ow.writeValueAsString(activity);
    } catch (IOException e) {
        e.printStackTrace();
    }
    template.convertAndSend("channel", message);
}
 

@Override
public String toString(T pojo)
{
  try {
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    ObjectWriter writer = mapper.writer();
    return writer.writeValueAsString(pojo);
  } catch (IOException e) {
    throw Throwables.propagate(e);
  }
}
 

private ObjectWriter getWriter() {
  ObjectMapper mapper = new ObjectMapper();

  // omit null fields from serialization
  mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
  // exclude certain fields and getter methods from node serialization via mixin
  mapper.getSerializationConfig().addMixInAnnotations(Node.class, MixIn.class);
  // register the module that suppresses the failed property if false
  mapper.registerModule(new IsFailedSuppressor());

  return mapper.writer().withDefaultPrettyPrinter();
}
 

@Override
public void serialize(OutputStream out, T object, TypeDef<?> type) throws IOException {
    if (type == null) {
        mapper.writeValue(out, object);
    } else {
        ObjectWriter writer = mapper.writerWithType(new TypeTokenBasedReference(type));
        writer.writeValue(out, object);
    }
}
 

JacksonInstanceSerializer(ObjectReader objectReader, ObjectWriter objectWriter,
    TypeReference<ServiceInstance<T>> typeRef)
{
  this.objectReader = objectReader;
  this.objectWriter = objectWriter;
  this.typeRef = typeRef;
}
 

/**
 * 根据map生成json
 * 
 * @param actionMap
 * @return
 */
private String getJson(Object activity) {
    ObjectMapper objectMapper = new ObjectMapper();

    objectMapper.getSerializationConfig().setSerializationInclusion(Inclusion.NON_NULL);
    ObjectWriter ow = objectMapper.writer().withDefaultPrettyPrinter();
    String message = "";
    try {
        message = ow.writeValueAsString(activity);
    } catch (IOException e) {
        logger.info("activity to json failure");
    }
    return message;
}
 

@Override
public String toString(T pojo)
{
  try {
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    ObjectWriter writer = mapper.writer();
    return writer.writeValueAsString(pojo);
  } catch (IOException e) {
    throw Throwables.propagate(e);
  }
}
 

public static void main(String[] args) {
    try {
        String json = "{\"candidate\" : \"Vicky Thakor\", \"expertise\" : [\"Core Java\", \"J2EE\", \"Design Pattern\"]}";
        System.out.println("Unformatter json:" + json);
        /* Create required objects */
        ObjectMapper objectMapper = new ObjectMapper();
        Object object = objectMapper.readValue(json, Object.class);
        ObjectWriter objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
        /* Get the formatted json */
        String formattedJSON = objectWriter.writeValueAsString(object);
        System.out.println("Formatter json:\n"+formattedJSON);
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}
 

/**
 * 更新资源
 *
 * @throws Exception
 */
@Test
public void testUpdate() throws Exception {
    // 由于请求参数使用了 @RequestBody 注解，故需要将参数封装成 JSON 格式
    TbContent tbContent = new TbContent();
    tbContent.setId(43L);
    tbContent.setCategoryId(89L);
    tbContent.setTitle("来自 SpringMock 的编辑测试");
    ObjectMapper objectMapper = new ObjectMapper();
    ObjectWriter objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
    String jsonParams = objectWriter.writeValueAsString(tbContent);

    // 模拟请求
    int status = this.mockMvc
            .perform(MockMvcRequestBuilders
                    .put("/update")
                    .header("Authorization", "Bearer 91317816-5036-4b76-86b7-05d96d55774d")
                    // 设置使用 JSON 方式传参
                    .contentType(MediaType.APPLICATION_JSON)
                    // 设置 JSON 参数内容
                    .content(jsonParams))
            .andDo(MockMvcResultHandlers.print())
            .andReturn().getResponse().getStatus();
    if (status == 200) {
        log.info("请求成功");
    } else {
        log.info("请求失败，状态码为：{}", status);
    }

    Assert.assertEquals(status, 200);
}
 

/**
 * 新增资源
 */
@Test
public void testInsert() throws Exception {
    // 由于请求参数使用了 @RequestBody 注解，故需要将参数封装成 JSON 格式
    TbContent tbContent = new TbContent();
    tbContent.setCategoryId(89L);
    tbContent.setTitle("来自 SpringMock 的新增测试");
    ObjectMapper objectMapper = new ObjectMapper();
    ObjectWriter objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
    String jsonParams = objectWriter.writeValueAsString(tbContent);

    // 模拟请求
    int status = this.mockMvc
            .perform(MockMvcRequestBuilders
                    .post("/insert")
                    .header("Authorization", "Bearer 91317816-5036-4b76-86b7-05d96d55774d")
                    // 设置使用 JSON 方式传参
                    .contentType(MediaType.APPLICATION_JSON)
                    // 设置 JSON 参数内容
                    .content(jsonParams))
            .andDo(MockMvcResultHandlers.print())
            .andReturn().getResponse().getStatus();
    if (status == 200) {
        log.info("请求成功");
    } else {
        log.info("请求失败，状态码为：{}", status);
    }

    Assert.assertEquals(status, 200);
}
 

InstanceSerializerFactory(ObjectReader objectReader, ObjectWriter objectWriter)
{
  this.objectReader = objectReader;
  this.objectWriter = objectWriter;
}
 

public ObjectWriter getObjectWriter() {
    return objectMapper.writer();
}