Examples of org.codehaus.jackson.JsonGenerator

org.codehaus.jackson.JsonGenerator
Base class that defines public API for writing JSON content. Instances are created using factory methods of a {@link JsonFactory} instance. @author Tatu Saloranta

      try {
        StringWriter writer = new StringWriter();
        if (retValue != null) {
          writer.append(JacksonUtil.toJson(retValue));
        } else {
          JsonGenerator g = JacksonUtil.getMapper().getJsonFactory().createJsonGenerator(writer);
          g.writeStartObject();
          g.writeFieldName("__cmds");
          g.writeStartArray();
          List<Object> functions = new ArrayList<Object>(context.getFunctions());
          for (Object function : functions) {
            g.writeObject(function);
          }
          g.writeEndArray();
          g.writeEndObject();
          g.close();
        }
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/javascript");
        response.setStatus(200);
        response.getWriter().write(writer.toString());

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   * @param pretty if true, pretty-print JSON.
   */
  public String toString(boolean pretty) {
    try {
      StringWriter writer = new StringWriter();
      JsonGenerator gen = FACTORY.createJsonGenerator(writer);
      if (pretty) gen.useDefaultPrettyPrinter();
      toJson(new Names(), gen);
      gen.flush();
      return writer.toString();
    } catch (IOException e) {
      throw new AvroRuntimeException(e);
    }
  }

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    Schema avroSchema = Schema.parse(schema);
    ObjectMapper mapper = new ObjectMapper();
    JsonFactory factory = new JsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator jgen = factory.createJsonGenerator(writer);
    jgen.useDefaultPrettyPrinter();


    @SuppressWarnings("checked")
    HashMap<String,Object> schemaMap = new ObjectMapper().readValue(schema, HashMap.class);


    @SuppressWarnings("checked")

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                       ". Generated at " + df.format(new Date(System.currentTimeMillis())));


      ObjectMapper mapper = new ObjectMapper();
      JsonFactory factory = new JsonFactory();
      StringWriter writer = new StringWriter();
      JsonGenerator jgen = factory.createJsonGenerator(writer);
      jgen.useDefaultPrettyPrinter();
      mapper.writeValue(jgen, field);
      return writer.getBuffer().toString();
    }
    catch(Exception ex)
    {

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         throws JsonGenerationException, JsonMappingException, IOException
  {
    JsonFactory jsonFactory = new JsonFactory(new ObjectMapper());


    StringWriter out = new StringWriter(1000);
    JsonGenerator jsonGenerator = jsonFactory.createJsonGenerator(out);
    if (pretty) jsonGenerator.useDefaultPrettyPrinter();
    jsonGenerator.writeObject(bean);
    out.flush();


    return out.toString();
  }

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    tableInfo.add(columnInfo5);
    
    ObjectMapper objectMapper = new ObjectMapper();      
    JsonFactory jsonFactory = new JsonFactory();  
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createJsonGenerator(writer);
    objectMapper.writeValue(jsonGenerator, tableInfo);
    String jsonString = writer.toString();
    when(context.getConfiguration().get(HIHOConf.COLUMN_INFO)).thenReturn(jsonString);
    
    mapper.setup(context);

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    EndpointResponse<Object> resp = new EndpointResponse<>();
    resp.setResult(object);
    resp.setSuccess(true);
    
    JsonGenerator jsonGenerator =
        getObjectMapper().getJsonFactory().createJsonGenerator(outputMessage.getBody(),  JsonEncoding.UTF8);
    
    getObjectMapper().writerWithDefaultPrettyPrinter().writeValue(jsonGenerator, resp);
    
  }

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                    @Override
                    public void writeTo(BufferedWriter out) throws IOException {


                        while(entriesIterator.hasNext()) {
                            final JsonGenerator generator = new JsonFactory(new ObjectMapper()).createJsonGenerator(out);
                            Pair<ByteArray, Versioned<byte[]>> kvPair = entriesIterator.next();
                            byte[] keyBytes = kvPair.getFirst().get();
                            byte[] valueBytes = kvPair.getSecond().getValue();
                            VectorClock version = (VectorClock) kvPair.getSecond().getVersion();


                            Object keyObject = keySerializer.toObject((null == keyCompressionStrategy) ? keyBytes
                                                                                                      : keyCompressionStrategy.inflate(keyBytes));
                            Object valueObject = valueSerializer.toObject((null == valueCompressionStrategy) ? valueBytes
                                                                                                            : valueCompressionStrategy.inflate(valueBytes));
                            if(keyObject instanceof GenericRecord) {
                                out.write(keyObject.toString());
                            } else {
                                generator.writeObject(keyObject);
                            }
                            out.write(' ' + version.toString() + ' ');
                            if(valueObject instanceof GenericRecord) {
                                out.write(valueObject.toString());
                            } else {
                                generator.writeObject(valueObject);
                            }
                            out.write('\n');
                        }
                    }
                });

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                    @Override
                    public void writeTo(BufferedWriter out) throws IOException {


                        while(keyIterator.hasNext()) {
                            final JsonGenerator generator = new JsonFactory(new ObjectMapper()).createJsonGenerator(out);


                            byte[] keyBytes = keyIterator.next().get();
                            Object keyObject = serializer.toObject((null == keysCompressionStrategy) ? keyBytes
                                                                                                    : keysCompressionStrategy.inflate(keyBytes));


                            if(keyObject instanceof GenericRecord) {
                                out.write(keyObject.toString());
                            } else {
                                generator.writeObject(keyObject);
                            }
                            out.write('\n');
                        }
                    }
                });

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    private static JsonFactory jf = new JsonFactory();


    private static String toJson(Object pojo, boolean prettyPrint)
            throws JsonMappingException, JsonGenerationException, IOException {
                StringWriter sw = new StringWriter();
                JsonGenerator jg = jf.createJsonGenerator(sw);
                if (prettyPrint) {
                    jg.useDefaultPrettyPrinter();
                }
                mapper.writeValue(jg, pojo);
                return sw.toString();
            }

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