import os
from json import loads
from dicttoxml import dicttoxml
from xml.dom.minidom import parseString

def jsonToXml(json_path, xml_path):
    #@abstract: transfer json file to xml file
    #json_path: complete path of the json file
    #xml_path: complete path of the xml file
    with open(json_path, 'r', encoding='UTF-8') as json_file:
        load_dict = loads(json_file.read())

    my_item_func = lambda x: 'Annotation'
    xml = dicttoxml(load_dict, custom_root='Annotations', item_func=my_item_func, attr_type=False)
    dom = parseString(xml)

    with open(xml_path, 'w', encoding='UTF-8') as xml_file:
        xml_file.write(dom.toprettyxml())
        
def json_to_xml(json_dir, xml_dir):
    # transfer all json file which in the json_dir to xml_dir
    if(os.path.exists(xml_dir)==False):
        os.makedirs(xml_dir)
    dir = os.listdir(json_dir)
    for file in dir:
        file_list=file.split(".")
        if(file_list[-1] == 'json'):
            jsonToXml(os.path.join(json_dir,file),os.path.join(xml_dir,file_list[0]+'.xml'))  

if __name__ == '__main__':
    #trandfer singal file
    j_path = "9-28-17.json"
    x_path = "9-28-17.xml"
    jsonToXml(j_path, x_path)