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

  }


  private static JsonGenerator getJsonGenerator(OutputStream out)
    throws IOException {
    return out == null ? null :
      new JsonFactory().createJsonGenerator(out, JsonEncoding.UTF8);
  }

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        }
    }


    public Bpmn2Resource unmarshall(String json, String preProcessingData) throws JsonParseException, IOException {
        return unmarshall(new JsonFactory().createJsonParser(json), preProcessingData);
    }

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    public Bpmn2Resource unmarshall(String json, String preProcessingData) throws JsonParseException, IOException {
        return unmarshall(new JsonFactory().createJsonParser(json), preProcessingData);
    }


    public Bpmn2Resource unmarshall(File file, String preProcessingData) throws JsonParseException, IOException {
        return unmarshall(new JsonFactory().createJsonParser(file), preProcessingData);
    }

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  private static JsonGenerator getJsonGenerator(OutputStream out, boolean pretty)
      throws IOException {
    if (null == out)
      throw new NullPointerException("OutputStream cannot be null"); 
    JsonGenerator g
      = new JsonFactory().createJsonGenerator(out, JsonEncoding.UTF8);
    if (pretty) {
      DefaultPrettyPrinter pp = new DefaultPrettyPrinter() {
        //@Override
        public void writeRootValueSeparator(JsonGenerator jg)
            throws IOException

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

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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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        if (manifestFile == null)
            manifestFile = new File(new File(DatabaseDescriptor.getAllDataFileLocations()[0], cfs.table.name), cfs.columnFamily + ".json");
        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
        {
            JsonGenerator g = f.createJsonGenerator(tmpFile, JsonEncoding.UTF8);
            g.useDefaultPrettyPrinter();
            g.writeStartObject();
            g.writeArrayFieldStart("generations");
            for (int level = 0; level < generations.length; level++)
            {

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      }
    }


    StringWriter sw = new StringWriter();
    try {
      JsonFactory f = new JsonFactory();
      JsonGenerator g = f.createJsonGenerator(sw);


      g.writeStartObject();


      // write id field
      g.writeRaw("\n  ");

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    Map<String, List<String>> listFields = Maps.newHashMap();
    Map<String, Map<String, String>> mapFields = Maps.newHashMap();
    byte[] rawPayload = null;


    try {
      JsonFactory f = new JsonFactory();
      JsonParser jp = f.createJsonParser(bais);


      jp.nextToken(); // will return JsonToken.START_OBJECT (verify?)
      while (jp.nextToken() != JsonToken.END_OBJECT) {
        String fieldname = jp.getCurrentName();
        jp.nextToken(); // move to value, or START_OBJECT/START_ARRAY

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            File assumptionFile = new File(assumptionDirectory, "assumptions.json");
            if (assumptionFile.isFile())
            {
                try
                {
                    JsonFactory f = new JsonFactory();
                    JsonParser p = f.createJsonParser(assumptionFile);
                    JsonToken token = p.nextToken();
                    while (token != JsonToken.END_OBJECT)
                    {
                        if (token == JsonToken.FIELD_NAME)
                        {

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