1 import lucene

     2 from ldt.ldt_utils import STORE

     3 from ldt.ldt_utils import ANALYZER

     4 import uuid

     5 import django.core.urlresolvers

     6 from django.conf import settings

     7 from ldt.ldt_utils.models import *

     8 import urllib

     9 import datetime

    10 import lxml.etree

    11 import base64

    12 

    13 __BOOLEAN_DICT = {

    14     'false':False,

    15     'true':True,

    16     '0':False,

    17     '1':True,

    18     't': True,

    19     'f':False

    20 }

    21 

    22 def boolean_convert(bool):

    23     if bool is None:

    24         return False

    25     if bool is True or bool is False:

    26         return bool

    27     key = str(bool).lower()

    28     return __BOOLEAN_DICT.get(key, False)

    29 

    30 

    31 def generate_uuid():

    32     return unicode(uuid.uuid1())

    33 

    34 

    35 def normalize_tags(list):

    36     nlist=[]

    37     for tag in list:

    38         tag = tag.lower()

    39         nlist.append(tag)

    40     taglist = dict().fromkeys(nlist).keys()    

    41     

    42     return taglist

    43 

    44 

    45 def create_empty_annotation():

    46     iri = lxml.etree.Element('iri')

    47     doc = lxml.etree.ElementTree(iri)

    48     

    49     textannotation = lxml.etree.SubElement(iri, 'text-annotation')

    50     id = lxml.etree.SubElement(textannotation,'id')

    51     uri = lxml.etree.SubElement(textannotation,'uri')

    52     tags = lxml.etree.SubElement(textannotation,'tags')

    53     

    54     content = lxml.etree.SubElement(textannotation,'content')

    55     color = lxml.etree.SubElement(content,'color')

    56     description = lxml.etree.SubElement(content,'description')

    57     title = lxml.etree.SubElement(content,'title')

    58     text = lxml.etree.SubElement(content,'text')

    59     

    60     meta = lxml.etree.SubElement(textannotation,'meta')

    61     contributor = lxml.etree.SubElement(meta, "contributor")

    62     creator = lxml.etree.SubElement(meta, "creator")

    63     creationdate = lxml.etree.SubElement(meta, "created")

    64     updatedate = lxml.etree.SubElement(meta, "modified")

    65 

    66     return doc

    67