com.fasterxml.jackson.databind.node.BooleanNode#valueOf ( )源码实例Demo

/**
 * Judge Java objects and create JsonNode.
 */
public static JsonNode get( final Object obj ) throws IOException {
  if ( obj instanceof PrimitiveObject ) {
    return PrimitiveObjectToJsonNode.get( (PrimitiveObject)obj );
  } else if ( obj instanceof String ) {
    return new TextNode( (String)obj );
  } else if ( obj instanceof Boolean ) {
    return BooleanNode.valueOf( (Boolean)obj );
  } else if ( obj instanceof Short ) {
    return IntNode.valueOf( ( (Short)obj ).intValue() );
  } else if ( obj instanceof Integer ) {
    return IntNode.valueOf( (Integer)obj );
  } else if ( obj instanceof Long ) {
    return new LongNode( (Long)obj );
  } else if ( obj instanceof Float ) {
    return new DoubleNode( ( (Float)obj ).doubleValue() );
  } else if ( obj instanceof Double ) {
    return new DoubleNode( (Double)obj );
  } else if ( obj instanceof byte[] ) {
    return new BinaryNode( (byte[])obj );
  } else if ( obj == null ) {
    return NullNode.getInstance();
  } else {
    return new TextNode( obj.toString() );
  }
}
 

/**
 * Convert PrimitiveObject to JsonNode.
 */
public static JsonNode get( final PrimitiveObject obj ) throws IOException {
  if ( obj == null ) {
    return NullNode.getInstance();
  }
  switch ( obj.getPrimitiveType() ) {
    case BOOLEAN:
      return BooleanNode.valueOf( obj.getBoolean() );
    case BYTE:
      return IntNode.valueOf( obj.getInt() );
    case SHORT:
      return IntNode.valueOf( obj.getInt() );
    case INTEGER:
      return IntNode.valueOf( obj.getInt() );
    case LONG:
      return new LongNode( obj.getLong() );
    case FLOAT:
      return new DoubleNode( obj.getDouble() );
    case DOUBLE:
      return new DoubleNode( obj.getDouble() );
    case STRING:
      return new TextNode( obj.getString() );
    case BYTES:
      return new BinaryNode( obj.getBytes() );
    default:
      return NullNode.getInstance();
  }
}
 

@Override
public JsonNode serialize(Boolean object) {
    return BooleanNode.valueOf(object);
}
 

public JsonNode toJson(Object object) throws IOException {
	if (object instanceof SBase) {
		SBase base = (SBase) object;
		ObjectNode jsonObject = OBJECT_MAPPER.createObjectNode();
		jsonObject.put("__type", base.getSClass().getSimpleName());
		for (SField field : base.getSClass().getAllFields()) {
			jsonObject.set(field.getName(), toJson(base.sGet(field)));
		}
		return jsonObject;
	} else if (object instanceof Collection) {
		Collection<?> collection = (Collection<?>) object;
		ArrayNode jsonArray = OBJECT_MAPPER.createArrayNode();
		for (Object value : collection) {
			jsonArray.add(toJson(value));
		}
		return jsonArray;
	} else if (object instanceof Date) {
		return new LongNode(((Date) object).getTime());
	} else if (object instanceof DataHandler) {
		DataHandler dataHandler = (DataHandler) object;
		InputStream inputStream = dataHandler.getInputStream();
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		IOUtils.copy(inputStream, out);
		return new TextNode(new String(Base64.encodeBase64(out.toByteArray()), Charsets.UTF_8));
	} else if (object instanceof Boolean) {
		return BooleanNode.valueOf((Boolean) object);
	} else if (object instanceof String) {
		return new TextNode((String) object);
	} else if (object instanceof Long) {
		return new LongNode((Long) object);
	} else if (object instanceof UUID) {
		return new TextNode(((UUID) object).toString());
	} else if (object instanceof Integer) {
		return new IntNode((Integer) object);
	} else if (object instanceof Double) {
		return new DoubleNode((Double) object);
	} else if (object instanceof Float) {
		return new FloatNode((Float) object);
	} else if (object instanceof Enum) {
		return new TextNode(object.toString());
	} else if (object == null) {
		return NullNode.getInstance();
	} else if (object instanceof byte[]) {
		byte[] data = (byte[]) object;
		return new TextNode(new String(Base64.encodeBase64(data), Charsets.UTF_8));
	}
	throw new UnsupportedOperationException(object.getClass().getName());
}
 

/**
 * Sets boolean on the specific json pointer.
 *
 * @param ptr    json pointer
 * @param isTrue boolean to set
 * @throws WorkflowException workflow exception
 */
public void setAt(JsonPointer ptr, Boolean isTrue) throws WorkflowException {
    BooleanNode booleanNode = BooleanNode.valueOf(isTrue);
    attach(ptr, booleanNode);
}