def model_filename_to_id(filename):
f = filename
if '.' in f:
f = os.path.splitext(f)[0]
try:
mid = int(f.rsplit('_', 1)[1])
except ValueError:
raise mdef.ModelDefinitionError(
'Error extracting model id from filename')
return mid
def get_model_def(model_id, mapping=True):
try:
model_id = int(model_id)
except:
raise mdef.ModelDefinitionError('Invalid model id: %s' % model_id)
model_def_file_json = mdef.to_json_filename(model_id)
model_def_file_smdx = smdx.to_smdx_filename(model_id)
model_def = None
for path in model_defs_path:
# look in directory, then json/, then smdx/
for path_option in model_path_options:
try:
model_def = mdef.from_json_file(
os.path.join(path, path_option, model_def_file_json))
except FileNotFoundError:
pass
except Exception as e:
raise mdef.ModelDefinitionError(
'Error loading model definition for model %s: %s' %
(model_id, str(e)))
if model_def is None:
try:
model_def = smdx.from_smdx_file(
os.path.join(path, path_option, model_def_file_smdx))
except FileNotFoundError:
pass
except Exception as e:
raise mdef.ModelDefinitionError(
'Error loading model definition for model %s: %s' %
(model_id, str(e)))
if model_def is not None:
if mapping:
add_mappings(model_def[mdef.GROUP])
return model_def
raise mdef.ModelDefinitionError(
'Model definition not found for model %s\nLooking in: %s' %
(model_id, os.path.join(path, path_option, model_def_file_json)))
def set_model_defs_path(path_list):
if not isinstance(path_list, list):
raise mdef.ModelDefinitionError(
'Invalid path list type, path list is not a list')
global model_defs_path
model_defs_path = path_list
def from_smdx_point(element):
""" Sets the point attributes based on an element tree point element
contained in an SMDX model definition.
Parameters:
element :
Element Tree point type element.
strings :
Indicates if *element* is a subelement of the 'strings'
definintion within the model definition.
"""
point_def = {}
pid = element.attrib.get(SMDX_ATTR_ID)
if pid is None:
raise mdef.ModelDefinitionError('Missing point id attribute')
point_def[mdef.NAME] = pid
ptype = element.attrib.get(SMDX_ATTR_TYPE)
if ptype is None:
raise mdef.ModelDefinitionError(
'Missing type attribute for point: %s' % pid)
elif ptype not in smdx_type_types:
raise mdef.ModelDefinitionError('Unknown point type %s for point %s' %
(ptype, pid))
point_def[mdef.TYPE] = ptype
plen = mdef.to_number_type(element.attrib.get(SMDX_ATTR_LEN))
if ptype == SMDX_TYPE_STRING:
if plen is None:
raise mdef.ModelDefinitionError(
'Missing len attribute for point: %s' % pid)
point_def[mdef.SIZE] = plen
mandatory = element.attrib.get(SMDX_ATTR_MANDATORY, SMDX_MANDATORY_FALSE)
if mandatory not in smdx_mandatory_types:
raise mdef.ModelDefinitionError('Unknown mandatory type: %s' %
mandatory)
if mandatory == SMDX_MANDATORY_TRUE:
point_def[mdef.MANDATORY] = smdx_mandatory_types.get(mandatory)
access = element.attrib.get(SMDX_ATTR_ACCESS, SMDX_ACCESS_R)
if access not in smdx_access_types:
raise mdef.ModelDefinitionError('Unknown access type: %s' % access)
if access == SMDX_ACCESS_RW:
point_def[mdef.ACCESS] = smdx_access_types.get(access)
units = element.attrib.get(SMDX_ATTR_UNITS)
if units:
point_def[mdef.UNITS] = units
# if scale factor is an number, convert to correct type
sf = mdef.to_number_type(element.attrib.get(SMDX_ATTR_SF))
if sf is not None:
point_def[mdef.SF] = sf
# if scale factor is an number, convert to correct type
value = mdef.to_number_type(element.attrib.get(SMDX_ATTR_VALUE))
if value is not None:
point_def[mdef.VALUE] = value
symbols = []
for e in element.findall('*'):
if e.tag == SMDX_SYMBOL:
sid = e.attrib.get(SMDX_ATTR_ID)
value = e.text
try:
value = int(value)
except ValueError:
pass
symbols.append({mdef.NAME: sid, mdef.VALUE: value})
if symbols:
point_def[mdef.SYMBOLS] = symbols
return point_def
def from_smdx(element):
""" Sets the model type attributes based on an element tree model type
element contained in an SMDX model definition.
Parameters:
element :
Element Tree model type element.
"""
model_def = {}
m = element.find(SMDX_MODEL)
if m is None:
raise mdef.ModelDefinitionError('Model definition not found')
try:
mid = mdef.to_number_type(m.attrib.get(SMDX_ATTR_ID))
except ValueError:
raise mdef.ModelDefinitionError('Invalid model id: %s' %
m.attrib.get(SMDX_ATTR_ID))
name = m.attrib.get(SMDX_ATTR_NAME)
if name is None:
name = 'model_' + str(mid)
model_def[mdef.NAME] = name
strings = element.find(SMDX_STRINGS)
# create top level group with ID and L points
fixed_def = {
mdef.NAME:
name,
mdef.TYPE:
mdef.TYPE_GROUP,
mdef.POINTS: [{
mdef.NAME: 'ID',
mdef.VALUE: mid,
mdef.DESCRIPTION: 'Model identifier',
mdef.LABEL: 'Model ID',
mdef.MANDATORY: mdef.MANDATORY_TRUE,
mdef.STATIC: mdef.STATIC_TRUE,
mdef.TYPE: mdef.TYPE_UINT16
}, {
mdef.NAME: 'L',
mdef.DESCRIPTION: 'Model length',
mdef.LABEL: 'Model Length',
mdef.MANDATORY: mdef.MANDATORY_TRUE,
mdef.STATIC: mdef.STATIC_TRUE,
mdef.TYPE: mdef.TYPE_UINT16
}]
}
repeating_def = None
fixed = None
repeating = None
for b in m.findall(SMDX_BLOCK):
btype = b.attrib.get(SMDX_ATTR_TYPE, SMDX_ATTR_TYPE_FIXED)
if btype == SMDX_ATTR_TYPE_FIXED:
if fixed is not None:
raise mdef.ModelDefinitionError(
'Duplicate fixed block type definition')
fixed = b
elif btype == SMDX_ATTR_TYPE_REPEATING:
if repeating is not None:
raise mdef.ModelDefinitionError(
'Duplicate repeating block type definition')
repeating = b
else:
raise mdef.ModelDefinitionError('Invalid block type: %s' % btype)
fixed_points_map = {}
if fixed is not None:
points = []
for e in fixed.findall(SMDX_POINT):
point_def = from_smdx_point(e)
if point_def[mdef.NAME] not in fixed_points_map:
fixed_points_map[point_def[mdef.NAME]] = point_def
points.append(point_def)
else:
raise mdef.ModelDefinitionError(
'Duplicate point definition: %s' % point_def[mdef.NAME])
if points:
fixed_def[mdef.POINTS].extend(points)
repeating_points_map = {}
if repeating is not None:
name = repeating.attrib.get(SMDX_ATTR_NAME)
if name is None:
name = 'repeating'
repeating_def = {
mdef.NAME: name,
mdef.TYPE: mdef.TYPE_GROUP,
mdef.COUNT: 0
}
points = []
for e in repeating.findall(SMDX_POINT):
point_def = from_smdx_point(e)
if point_def[mdef.NAME] not in repeating_points_map:
repeating_points_map[point_def[mdef.NAME]] = point_def
points.append(point_def)
else:
raise mdef.ModelDefinitionError(
'Duplicate point definition: %s' % point_def[mdef.NAME])
if points:
repeating_def[mdef.POINTS] = points
fixed_def[mdef.GROUPS] = [repeating_def]
e = element.find(SMDX_STRINGS)
if e.attrib.get(SMDX_ATTR_ID) == str(mid):
m = e.find(SMDX_MODEL)
if m is not None:
for a in m.findall('*'):
if a.tag == SMDX_LABEL and a.text:
fixed_def[mdef.LABEL] = a.text
elif a.tag == SMDX_DESCRIPTION and a.text:
fixed_def[mdef.DESCRIPTION] = a.text
elif a.tag == SMDX_NOTES and a.text:
fixed_def[mdef.DETAIL] = a.text
for p in e.findall(SMDX_POINT):
pid = p.attrib.get(SMDX_ATTR_ID)
label = desc = notes = None
for a in p.findall('*'):
if a.tag == SMDX_LABEL and a.text:
label = a.text
elif a.tag == SMDX_DESCRIPTION and a.text:
desc = a.text
elif a.tag == SMDX_NOTES and a.text:
notes = a.text
point_def = fixed_points_map.get(pid)
if point_def is not None:
if label:
point_def[mdef.LABEL] = label
if desc:
point_def[mdef.DESCRIPTION] = desc
if notes:
point_def[mdef.DETAIL] = notes
point_def = repeating_points_map.get(pid)
if point_def is not None:
if label:
point_def[mdef.LABEL] = label
if desc:
point_def[mdef.DESCRIPTION] = desc
if notes:
point_def[mdef.DETAIL] = notes
model_def = {'id': mid, 'group': fixed_def}
return model_def