def __get_child_id(self, dir_id, item_name):
ikey = Key(Key.KT_ADDR, dir_id, self.__hash(item_name))
i_ids = []
ret_id = None
i_addr_list_raw = self.__get_raw_value(ikey)
if not i_addr_list_raw:
raise PathException('key %s does not found' % ikey)
for i_id in AddressItems.iter_item_ids(i_addr_list_raw):
i_ids.append(i_id)
if len(i_ids) == 0:
raise PathException('No childlen found for key %s' % ikey)
if len(i_ids) > 1:
for i_id in i_ids:
item_md = self.__get_item_md(i_id)
if to_str(item_md.name) == to_str(item_name):
ret_id = i_id
break
else:
ret_id = i_ids[0]
if ret_id is None:
raise PathException('No child "%s" found in dir with id %s' %
(item_name, dir_id))
return ret_id
def __get_child_id(self, dir_id, item_name):
ikey = Key(Key.KT_ADDR, dir_id, self.__hash(item_name))
i_ids = []
ret_id = None
i_addr_list_raw = self.__get_raw_value(ikey)
if not i_addr_list_raw:
raise PathException('key %s does not found'%ikey)
for i_id in AddressItems.iter_item_ids(i_addr_list_raw):
i_ids.append(i_id)
if len(i_ids) == 0:
raise PathException('No childlen found for key %s'%ikey)
if len(i_ids) > 1:
for i_id in i_ids:
item_md = self.__get_item_md(i_id)
if to_str(item_md.name) == to_str(item_name):
ret_id = i_id
break
else:
ret_id = i_ids[0]
if ret_id is None:
raise PathException('No child "%s" found in dir with id %s'%(item_name, dir_id))
return ret_id
def __exists(self, item_md):
a_key = Key(Key.KT_ADDR, item_md.parent_dir_id, self.__hash(item_md.name))
addr_st_raw = self.__get_raw_value(a_key)
if not addr_st_raw:
return False
for i_id in AddressItems.iter_item_ids(addr_st_raw):
i_md = self.__get_item_md(i_id)
if to_str(i_md.name) == to_str(item_md.name):
return True
return False
def __update_addr_item(self, old_item_md, new_item_md):
if to_str(old_item_md.name) != to_str(new_item_md.name):
new_key = Key(Key.KT_ADDR, new_item_md.parent_dir_id, self.__hash(new_item_md.name))
old_key = Key(Key.KT_ADDR, old_item_md.parent_dir_id, self.__hash(old_item_md.name))
self.__update_addr(old_key, old_item_md.item_id, new_key)
if old_item_md.parent_dir_id != new_item_md.parent_dir_id:
old_dir_md = self.__get_item_md(old_item_md.parent_dir_id)
self.__remove_addr_child(old_dir_md, old_item_md.item_id)
new_dir_md = self.__get_item_md(new_item_md.parent_dir_id)
self.__append_addr_child(new_dir_md, old_item_md.item_id)
def __exists(self, item_md):
a_key = Key(Key.KT_ADDR, item_md.parent_dir_id,
self.__hash(item_md.name))
addr_st_raw = self.__get_raw_value(a_key)
if not addr_st_raw:
return False
for i_id in AddressItems.iter_item_ids(addr_st_raw):
i_md = self.__get_item_md(i_id)
if to_str(i_md.name) == to_str(item_md.name):
return True
return False
def __update_addr_item(self, old_item_md, new_item_md):
if to_str(old_item_md.name) != to_str(new_item_md.name):
new_key = Key(Key.KT_ADDR, new_item_md.parent_dir_id,
self.__hash(new_item_md.name))
old_key = Key(Key.KT_ADDR, old_item_md.parent_dir_id,
self.__hash(old_item_md.name))
self.__update_addr(old_key, old_item_md.item_id, new_key)
if old_item_md.parent_dir_id != new_item_md.parent_dir_id:
old_dir_md = self.__get_item_md(old_item_md.parent_dir_id)
self.__remove_addr_child(old_dir_md, old_item_md.item_id)
new_dir_md = self.__get_item_md(new_item_md.parent_dir_id)
self.__append_addr_child(new_dir_md, old_item_md.item_id)
def dump(self, recursive=False):
self.validate()
fname = to_str(self.name)
fname_len = len(fname)
if fname_len < 1 or fname_len > MAX_B:
raise MDValidationError('File name length should be in range [1..%s], but "%s" occured'%(MAX_B, fname))
dump = struct.pack(self.HDR_STRUCT, AbstractMetadataObject.MOL_FILE, fname_len, self.item_id, \
self.size, self.replica_count, self.parent_dir_id, self.create_date, int(self.is_local))
dump += fname
for chunk in self.chunks:
ch_dump = chunk.dump()
dump += '%s%s'%(chr(len(ch_dump)), ch_dump)
return dump
def dump(self, recursive=False):
self.validate()
fname = to_str(self.name)
fname_len = len(fname)
if fname_len < 1 or fname_len > MAX_B:
raise MDValidationError(
'File name length should be in range [1..%s], but "%s" occured'
% (MAX_B, fname))
dump = struct.pack(self.HDR_STRUCT, AbstractMetadataObject.MOL_FILE, fname_len, self.item_id, \
self.size, self.replica_count, self.parent_dir_id, self.create_date, int(self.is_local))
dump += fname
for chunk in self.chunks:
ch_dump = chunk.dump()
dump += '%s%s' % (chr(len(ch_dump)), ch_dump)
return dump
def dump(self, recursive=False):
self.validate()
dname = to_str(self.name)
dname_len = len(dname)
if dname_len < 1 or dname_len > MAX_B:
raise MDValidationError('Directory name length should be in range [1..%s], but "%s" occured'%(MAX_B, dname))
dump = struct.pack(self.HDR_STRUCT, AbstractMetadataObject.MOL_DIR, dname_len, self.item_id, \
self.parent_dir_id, self.create_date, self.last_modify_date)
dump += dname
if recursive:
for dir_item in self.content.values():
for item in dir_item:
im_dump = item.dump(recursive)
dump += '%s%s'%(struct.pack(self.ITEM_HDR_STRUCT, len(im_dump), int(item.is_file())), im_dump)
return dump
def dump(self, recursive=False):
self.validate()
dname = to_str(self.name)
dname_len = len(dname)
if dname_len < 1 or dname_len > MAX_B:
raise MDValidationError(
'Directory name length should be in range [1..%s], but "%s" occured'
% (MAX_B, dname))
dump = struct.pack(self.HDR_STRUCT, AbstractMetadataObject.MOL_DIR, dname_len, self.item_id, \
self.parent_dir_id, self.create_date, self.last_modify_date)
dump += dname
if recursive:
for dir_item in self.content.values():
for item in dir_item:
im_dump = item.dump(recursive)
dump += '%s%s' % (struct.pack(
self.ITEM_HDR_STRUCT, len(im_dump), int(
item.is_file())), im_dump)
return dump
