Examples of org.codehaus.jackson.JsonFactory

org.codehaus.jackson.JsonFactory
The main factory class of Jackson package, used to configure and construct reader (aka parser, {@link JsonParser}) and writer (aka generator, {@link JsonGenerator}) instances.
Factory instances are thread-safe and reusable after configuration (if any). Typically applications and services use only a single globally shared factory instance, unless they need differently configured factories. Factory reuse is important if efficiency matters; most recycling of expensive construct is done on per-factory basis.
Creation of a factory instance is a light-weight operation, and since there is no need for pluggable alternative implementations (as there is no "standard" JSON processor API to implement), the default constructor is used for constructing factory instances. @author Tatu Saloranta

      DatumReader<Object> reader = new GenericDatumReader<Object>(schema);
      binDecoder.set(DecoderFactory.defaultFactory().createBinaryDecoder(valueBytes, binDecoder.get()));


      Object datum = reader.read(null, binDecoder.get());
      DatumWriter<Object> writer = new GenericDatumWriter<Object>(schema);
      JsonGenerator g = new JsonFactory().createJsonGenerator(out, JsonEncoding.UTF8);
      // write the src ID
      g.writeStartObject();
      g.writeFieldName(SRC_ID_FIELD_NAME);
      g.writeNumber(e.getSourceId());
      g.writeFieldName(OPCODE_FIELD_NAME);

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    return result;
  }


  public void convert(InputStream in, OutputStream out) throws IOException
  {
    JsonGenerator jsonGenerator = (new JsonFactory()).createJsonGenerator(new OutputStreamWriter(out));
    if (AvroFormat.JSON == _outputFormat) jsonGenerator.useDefaultPrettyPrinter();


    List<GenericRecord> result = convert(in);
    Encoder outputEncoder = (AvroFormat.BINARY == _outputFormat) ?
        new BinaryEncoder(out) :

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    }
    case JSON_PLAIN_VALUE:
    case JSON:
    {
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      JsonFactory f = new JsonFactory();
      try {
        JsonGenerator g = f.createJsonGenerator(baos, JsonEncoding.UTF8);
        g.writeStartObject();
        int version = getVersion();
        if (version == DbusEventFactory.DBUS_EVENT_V1)
        {
          writeJSON_V1(g,encoding);

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            log.log(Level.SEVERE, e.getMessage());
        }


        final LoginInfo loginInfo = new LoginInfo();
        try {
            final JsonFactory f = new JsonFactory();
            JsonParser jp;
            jp = f.createJsonParser(r.toString());
            jp.nextToken();
            while (jp.nextToken() != JsonToken.END_OBJECT) {
                final String fieldname = jp.getCurrentName();
                jp.nextToken();
                if ("picture".equals(fieldname)) {

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   * @param out the Writer to write to
   * @throws IOException
   */
  public static void dumpConfiguration(Configuration config,
      Writer out) throws IOException {
    JsonFactory dumpFactory = new JsonFactory();
    JsonGenerator dumpGenerator = dumpFactory.createJsonGenerator(out);
    dumpGenerator.writeStartObject();
    dumpGenerator.writeFieldName("properties");
    dumpGenerator.writeStartArray();
    dumpGenerator.flush();
    synchronized (config) {

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      if (keys == null) {
        keys = new HashSet<String>();
        discoveredI18nMap.put(locale, keys);
      }
      is = TranslationServiceGenerator.class.getClassLoader().getResourceAsStream(bundlePath);
      JsonFactory jsonFactory = new JsonFactory();
      JsonParser jp = jsonFactory.createJsonParser(is);
      JsonToken token = jp.nextToken();
      while (token != null) {
        token = jp.nextToken();
        if (token == JsonToken.FIELD_NAME) {
          String name = jp.getCurrentName();

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  private static void outputBundleFile(Map<String, String> i18nValues, File bundleFile, Set<String> onlyTheseKeys) {
    if (onlyTheseKeys != null && onlyTheseKeys.isEmpty())
      return;


    try {
      JsonFactory f = new JsonFactory();
      JsonGenerator g = f.createJsonGenerator(bundleFile, JsonEncoding.UTF8);
      g.useDefaultPrettyPrinter();
      g.writeStartObject();
      Set<String> orderedKeys = new TreeSet<String>(i18nValues.keySet());
      for (String key : orderedKeys) {
        String value = i18nValues.get(key);

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    {
        File manifestFile = cfs.directories.getOrCreateLeveledManifest();
        File oldFile = new File(manifestFile.getPath().replace(EXTENSION, "-old.json"));
        File tmpFile = new File(manifestFile.getPath().replace(EXTENSION, "-tmp.json"));


        JsonFactory f = new JsonFactory();
        try
        {
            FileOutputStream fos = new FileOutputStream(tmpFile);
            JsonGenerator g = f.createJsonGenerator(fos, JsonEncoding.UTF8);
            g.useDefaultPrettyPrinter();
            g.writeStartObject();
            g.writeArrayFieldStart("generations");
            for (int level = 0; level < generations.length; level++)
            {

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  private final JsonNode data;
  
  public TestResolvingGrammarGenerator(String jsonSchema, String jsonData)
    throws IOException {
    this.schema = Schema.parse(jsonSchema);
    JsonFactory factory = new JsonFactory();
    ObjectMapper mapper = new ObjectMapper(factory);


    this.data = mapper.readTree(new StringReader(jsonData));
  }

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      .setRelatedids(Arrays.asList(1, 2, 3))
      .setTypeEnum(TypeEnum.c)
      .build();


    String json = foo.toString();
    JsonFactory factory = new JsonFactory();
    JsonParser parser = factory.createJsonParser(json);
    ObjectMapper mapper = new ObjectMapper();


    // will throw exception if string is not parsable json
    mapper.readTree(parser);
  }

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