Package org.codehaus.jackson

Examples of org.codehaus.jackson.JsonGenerator

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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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        File tmpFile = new File(manifestFile.getPath().replace(EXTENSION, "-tmp.json"));

        JsonFactory f = new JsonFactory();
        try
        {
            JsonGenerator g = f.createJsonGenerator(tmpFile, JsonEncoding.UTF8);
            g.useDefaultPrettyPrinter();
            g.writeStartObject();
            g.writeArrayFieldStart("generations");
            for (int level = 0; level < generations.length; level++)
            {
                g.writeStartObject();
                g.writeNumberField("generation", level);
                g.writeArrayFieldStart("members");
                for (SSTableReader ssTableReader : generations[level])
                    g.writeNumber(ssTableReader.descriptor.generation);
                g.writeEndArray(); // members

                g.writeEndObject(); // generation
            }
            g.writeEndArray(); // for field generations
            g.writeEndObject(); // write global object
            g.close();
        }
        catch (IOException e)
        {
            throw new FSWriteError(e, tmpFile);
        }
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        File tmpFile = new File(manifestFile.getPath().replace(EXTENSION, "-tmp.json"));

        JsonFactory f = new JsonFactory();
        try
        {
            JsonGenerator g = f.createJsonGenerator(tmpFile, JsonEncoding.UTF8);
            g.useDefaultPrettyPrinter();
            g.writeStartObject();
            g.writeArrayFieldStart("generations");
            for (int level = 0; level < generations.length; level++)
            {
                g.writeStartObject();
                g.writeNumberField("generation", level);
                g.writeArrayFieldStart("members");
                for (SSTableReader ssTableReader : generations[level])
                    g.writeNumber(ssTableReader.descriptor.generation);
                g.writeEndArray(); // members

                g.writeEndObject(); // generation
            }
            g.writeEndArray(); // for field generations
            g.writeEndObject(); // write global object
            g.close();

            if (oldFile.exists() && manifestFile.exists())
                FileUtils.deleteWithConfirm(oldFile);
            if (manifestFile.exists())
                FileUtils.renameWithConfirm(manifestFile, oldFile);
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  }

  public void testComplex() throws MustacheException, IOException {
    StringWriter json = new StringWriter();
    MappingJsonFactory jf = new MappingJsonFactory();
    final JsonGenerator jg = jf.createJsonGenerator(json);
    jg.writeStartObject();
    final JsonCapturer captured = new JsonCapturer(jg);
    MustacheFactory c = new DefaultMustacheFactory(root) {
      @Override
      public MustacheVisitor createMustacheVisitor() {
        return new CapturingMustacheVisitor(this, captured);
      }
    };
    Mustache m = c.compile("complex.html");
    StringWriter sw = new StringWriter();
    m.execute(sw, new ComplexObject());
    jg.writeEndObject();
    jg.flush();
    assertEquals(getContents(root, "complex.txt"), sw.toString());
    JsonNode jsonNode = jf.createJsonParser(json.toString()).readValueAsTree();
    Object o = JsonInterpreterTest.toObject(jsonNode);
    sw = new StringWriter();
    m = init().compile("complex.html");
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    String txt = new String(Files.readAllBytes(file), "UTF-8");
    Node invert = compile.invert(txt);

    MappingJsonFactory jf = new MappingJsonFactory();
    StringWriter out = new StringWriter();
    JsonGenerator jg = jf.createJsonGenerator(out);
    writeNode(jg, invert);
    jg.flush();
    System.out.println(out.toString());
  }
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    String txt = new String(Files.readAllBytes(file), "UTF-8");
    Node invert = compile.invert(txt);

    MappingJsonFactory jf = new MappingJsonFactory();
    StringWriter out = new StringWriter();
    JsonGenerator jg = jf.createJsonGenerator(out);
    writeNode(jg, invert);
    jg.flush();
    System.out.println(out.toString());
  }
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    String txt = new String(Files.readAllBytes(file), "UTF-8");
    Node invert = compile.invert(txt);

    MappingJsonFactory jf = new MappingJsonFactory();
    StringWriter out = new StringWriter();
    JsonGenerator jg = jf.createJsonGenerator(out);
    writeNode(jg, invert);
    jg.flush();
    System.out.println(out.toString());
  }
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    System.out.println("]");
    Node invert = compile.invert(txt);

    MappingJsonFactory jf = new MappingJsonFactory();
    StringWriter out = new StringWriter();
    JsonGenerator jg = jf.createJsonGenerator(out);
    writeNode(jg, invert);
    jg.flush();
    System.out.println(out.toString());
  }
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    String txt = new String(Files.readAllBytes(file), "UTF-8");
    Node invert = compile.invert(txt);

    MappingJsonFactory jf = new MappingJsonFactory();
    StringWriter out = new StringWriter();
    JsonGenerator jg = jf.createJsonGenerator(out);
    writeNode(jg, invert);
    jg.flush();
    System.out.println(out.toString());
  }
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   * @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) {
      for (Map.Entry<Object,Object> item: config.getProps().entrySet()) {
        dumpGenerator.writeStartObject();
        dumpGenerator.writeStringField("key", (String) item.getKey());
        dumpGenerator.writeStringField("value",
                                       config.get((String) item.getKey()));
        dumpGenerator.writeBooleanField("isFinal",
                                        config.finalParameters.contains(item.getKey()));
        String[] resources = config.updatingResource.get(item.getKey());
        String resource = UNKNOWN_RESOURCE;
        if(resources != null && resources.length > 0) {
          resource = resources[0];
        }
        dumpGenerator.writeStringField("resource", resource);
        dumpGenerator.writeEndObject();
      }
    }
    dumpGenerator.writeEndArray();
    dumpGenerator.writeEndObject();
    dumpGenerator.flush();
  }
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