Example usage for javax.json.stream JsonGenerator writeStartObject

List of usage examples for javax.json.stream JsonGenerator writeStartObject

Introduction

In this page you can find the example usage for javax.json.stream JsonGenerator writeStartObject.

Prototype

JsonGenerator writeStartObject(String name);

Source Link

Document

Writes the JSON name/start object character pair in the current object context.

Usage

From source file:iing.uabc.edu.mx.persistencia.util.JSON.java

private static void stringifyObject(JsonGenerator generator, BeanManager manager) {

    String keyName;//from  www  . j a  v  a  2 s  . com

    Field[] fields = manager.getFields();

    //Read every field and transform  it to a json property string
    for (Field field : fields) {
        Class fieldType = manager.getType(field.getName());
        keyName = field.getName();
        Object value = manager.getProperty(keyName);

        System.out.println("KeyName: " + keyName);
        System.out.println("Valor " + keyName + ": " + value);

        if (value == null) {
            //Set to null the property
            generator.writeNull(keyName);
            continue;
        }
        //Is a String
        if (fieldType == String.class) {
            generator.write(keyName, String.valueOf(value));
        } //Is a Date
        else if (fieldType == Date.class) {
            String date = DateFormatUtils.ISO_DATETIME_TIME_ZONE_FORMAT.format(value);

            generator.write(keyName, date);

        } //Is a integer
        else if (fieldType == Integer.class || fieldType == Integer.TYPE) {
            generator.write(keyName, (int) value);
        } //Is a double
        else if (fieldType == Double.class || fieldType == Double.TYPE) {
            generator.write(keyName, (double) value);
        } //Is boolean
        else if (fieldType == Boolean.class || fieldType == Boolean.TYPE) {
            generator.write(keyName, (boolean) value);
        } //Is a collection
        else if (value instanceof Collection) {
            Class elementClass = manager.getCollectionElementType(keyName);

            System.out.println("Nueva Colleccion [] de clase: " + elementClass.getSimpleName());

            generator.writeStartArray(keyName);

            //Create new collection manager with the given class
            CollectionManager collectionManager = new CollectionManager((Collection) value, elementClass);

            stringifyArray(generator, collectionManager);

            generator.writeEnd();
        } else {
            //Is a object... probably
            BeanManager objectManager = new BeanManager(value);

            System.out.println("Nuevo Objecto {}: " + value.getClass().getSimpleName());
            generator.writeStartObject(keyName);

            stringifyObject(generator, objectManager);

            generator.writeEnd();
        }
    }

}

From source file:nl.nn.adapterframework.align.content.JsonDocumentContainer.java

protected void generate(JsonGenerator g, String key, Object item) {
    if (item == null) {
        if (key != null)
            g.writeNull(key);// w w w. j  a  va  2  s.co m
        else
            g.writeNull();
    } else if (item instanceof String) {
        if (key != null)
            g.write(key, (String) item);
        else
            g.write((String) item);
    } else if (item instanceof Map) {
        if (key != null)
            g.writeStartObject(key);
        else
            g.writeStartObject();
        for (Entry<String, Object> entry : ((Map<String, Object>) item).entrySet()) {
            generate(g, entry.getKey(), entry.getValue());
        }
        g.writeEnd();
    } else if (item instanceof List) {
        if (key != null)
            g.writeStartArray(key);
        else
            g.writeStartArray();
        for (Object subitem : (List) item) {
            generate(g, null, subitem);
        }
        g.writeEnd();
    } else {
        throw new NotImplementedException("cannot handle class [" + item.getClass().getName() + "]");
    }
}