def read_meta_data2(self):
# prep attrs
self._attr["created_time"] = None
self._attr["modified_time"] = None
try:
# TODO: move?
parser = xml.parsers.expat.ParserCreate()
parser.StartElementHandler = self.__meta_start_element
parser.EndElementHandler = self.__meta_end_element
parser.CharacterDataHandler = self.__meta_char_data
infile = open(self.get_meta_file(), "r")
self.__meta_body = False
parser.ParseFile(infile)
infile.close()
except xml.parsers.expat.ExpatError as e:
raise NoteBookError("Cannot read meta data", e)
except Exception as e:
raise NoteBookError("Cannot read meta data", e)
# set defaults
if self._attr["created_time"] is None:
self._attr["created_time"] = get_timestamp()
self._set_dirty(True)
if self._attr["modified_time"] is None:
self._attr["modified_time"] = get_timestamp()
self._set_dirty(True)
def set_meta_data(self, attr):
self._version = self._meta.attr.get("version", NOTEBOOK_FORMAT_VERSION)
# set defaults
if "created_time" not in attr:
attr["created_time"] = get_timestamp()
self._set_dirty(True)
if "modified_time" not in attr:
attr["modified_time"] = get_timestamp()
self._set_dirty(True)
if "nodeid" not in attr or attr["nodeid"].startswith("urn:"):
attr["nodeid"] = new_nodeid()
self._set_dirty(True)
self._attr.update(attr)
def create(self):
"""Initializes the node on disk (create required files/directories)"""
path = self.get_path()
try:
os.mkdir(path)
except OSError as e:
raise NoteBookError("Cannot create node", e)
self._attr["created_time"] = get_timestamp()
self._attr["modified_time"] = get_timestamp()
self.write_meta_data()
self._set_dirty(False)
if self._attr["kind"] == "page":
self.write_empty_data_file()
def create(self):
"""Initializes the node on disk (create required files/directories)"""
path = self.get_path()
try:
os.mkdir(path)
except OSError as e:
raise NoteBookError("Cannot create node", e)
self._attr["created_time"] = get_timestamp()
self._attr["modified_time"] = get_timestamp()
self.write_meta_data()
self._set_dirty(False)
# TODO: move to NoteBookPage
if self._attr["content_type"] == CONTENT_TYPE_PAGE:
self.write_empty_data_file()
class NoteBookNode (object):
"""A general base class for all nodes in a NoteBook"""
def __init__(self, path, title="", parent=None, notebook=None, kind="dir"):
self._notebook = notebook
self._parent = parent
self._basename = None
self._children = None
self._valid = True
self._version = NOTEBOOK_FORMAT_VERSION
self._attr = {
"title": title,
"kind": kind,
"order": sys.maxint,
"created_time": None,
"modified_time": None,
"expanded": False,
"expanded2": False,
"info_sort": INFO_SORT_NONE,
"info_sort_dir": 1}
# TODO: add a mechanism to register implict attrs that in turn do lookup
# "type", "title", "parent", "nchildren"
self._set_basename(path)
def create(self):
"""Initializes the node on disk (create required files/directories)"""
path = self.get_path()
try:
os.mkdir(path)
except OSError, e:
raise NoteBookError("Cannot create node", e)
self._attr["created_time"] = get_timestamp()
self._attr["modified_time"] = get_timestamp()
self.write_meta_data()
self._set_dirty(False)
if self._attr["kind"] == "page":
self.write_empty_data_file()
def read_meta_data(self):
"""Read meta data from file-system"""
self._attr["created_time"] = None
self._attr["modified_time"] = None
try:
self._meta_parser.read(self, self.get_meta_file())
except IOError as e:
raise NoteBookError("Cannot read meta data", e)
except xmlo.XmlError as e:
raise NoteBookError("Node meta data is corrupt for note '%s'" % self.get_path(), e)
#if self.get_parent() == None:
# print "HERE", self._attr
# set defaults
if self._attr["created_time"] is None:
self._attr["created_time"] = get_timestamp()
self._set_dirty(True)
if self._attr["modified_time"] is None:
self._attr["modified_time"] = get_timestamp()
self._set_dirty(True)
def set_attr_timestamp(self, name, timestamp=None):
"""Set a timestamp attribute"""
if timestamp is None:
timestamp = get_timestamp()
self._attr[name] = timestamp
self._set_dirty(True)
self._attr["modified_time"] = None
try:
self._meta_parser.read(self, self.get_meta_file())
except IOError, e:
raise NoteBookError("Cannot read meta data", e)
except xmlo.XmlError, e:
raise NoteBookError("Node meta data is corrupt for note '%s'" %
self.get_path(), e)
#if self.get_parent() == None:
# print "HERE", self._attr
# set defaults
if self._attr["created_time"] is None:
self._attr["created_time"] = get_timestamp()
self._set_dirty(True)
if self._attr["modified_time"] is None:
self._attr["modified_time"] = get_timestamp()
self._set_dirty(True)
def write_meta_data(self):
"""Write meta data to file-system"""
try:
self._meta_parser.write(self, self.get_meta_file())
except IOError, e:
raise NoteBookError("Cannot write meta data", e)
except xmlo.XmlError, e:
raise NoteBookError("File format error", e)
def set_attr_timestamp(self, name, timestamp=None):
"""Set a timestamp attribute"""
if timestamp is None:
timestamp = get_timestamp()
self._attr[name] = timestamp
self._set_dirty(True)
self._attr["modified_time"] = None
try:
self._meta_parser.read(self, self.get_meta_file())
except IOError, e:
raise NoteBookError("Cannot read meta data", e)
except xmlo.XmlError, e:
raise NoteBookError("Node meta data is corrupt for note '%s'" %
self.get_path(), e)
#if self.get_parent() == None:
# print "HERE", self._attr
# set defaults
if self._attr["created_time"] is None:
self._attr["created_time"] = get_timestamp()
self._set_dirty(True)
if self._attr["modified_time"] is None:
self._attr["modified_time"] = get_timestamp()
self._set_dirty(True)
def write_meta_data(self):
"""Write meta data to file-system"""
try:
self._meta_parser.write(self, self.get_meta_file())
except IOError, e:
raise NoteBookError("Cannot write meta data", e)
except xmlo.XmlError, e:
raise NoteBookError("File format error", e)
