def to_instance(cls, ob, default=None, strict=False):
"""Encode a GeoJSON dict into an GeoJSON object.
Assumes the caller knows that the dict should satisfy a GeoJSON type.
"""
if ob is None and default is not None:
instance = default()
elif isinstance(ob, GeoJSON):
instance = ob
else:
mapping = to_mapping(ob)
d = dict((str(k), mapping[k]) for k in mapping)
try:
type_ = d.pop("type")
geojson_factory = getattr(geojson.factory, type_)
if not issubclass(geojson_factory, GeoJSON):
raise TypeError("""\
Not a valid GeoJSON type:
%r (geojson_factory: %r, cls: %r)
""" % (type_, geojson_factory, cls))
instance = geojson_factory(**d)
except (AttributeError, KeyError), invalid:
if not strict:
instance = ob
else:
msg = "Cannot coerce %r into a valid GeoJSON structure: %s"
msg %= (ob, invalid)
raise ValueError(msg)
def to_instance(cls, ob, default=None, strict=False):
"""Encode a GeoJSON dict into an GeoJSON object.
Assumes the caller knows that the dict should satisfy a GeoJSON type.
"""
if ob is None and default is not None:
instance = default()
elif isinstance(ob, GeoJSON):
instance = ob
else:
mapping = to_mapping(ob)
d = dict((str(k), mapping[k]) for k in mapping)
try:
type_ = d.pop("type")
geojson_factory = getattr(geojson.factory, type_)
if not issubclass(geojson_factory, GeoJSON):
raise TypeError("""\
Not a valid GeoJSON type:
%r (geojson_factory: %r, cls: %r)
""" % (type_, geojson_factory, cls))
instance = geojson_factory(**d)
except (AttributeError, KeyError), invalid:
if not strict:
instance = ob
else:
msg = "Cannot coerce %r into a valid GeoJSON structure: %s"
msg %= (ob, invalid)
raise ValueError(msg)
def default(self, obj):
if isinstance(obj, Mapping):
mapping = obj
else:
mapping = to_mapping(obj)
d = dict(mapping)
type_str = d.pop("type", None)
if type_str:
geojson_factory = getattr(factory, type_str, factory.GeoJSON)
d = geojson_factory(**d).__geo_interface__
return d
def default(self, obj):
if isinstance(obj, Mapping):
mapping = obj
else:
mapping = to_mapping(obj)
d = dict(mapping)
type_str = d.pop("type", None)
if type_str:
geojson_factory = getattr(factory, type_str, factory.GeoJSON)
d = geojson_factory(**d).__geo_interface__
return d
def dumps(obj, cls=GeoJSONEncoder, **kwargs):
return json.dumps(to_mapping(obj), cls=cls, **kwargs)
def dumps(obj, cls=GeoJSONEncoder, **kwargs):
return json.dumps(to_mapping(obj), cls=cls, **kwargs)
def dump(obj, fp, cls=GeoJSONEncoder, **kwargs):
return simplejson.dump(to_mapping(obj), fp, cls=cls, **kwargs)
def dump(obj, fp, cls=GeoJSONEncoder, **kwargs):
return simplejson.dump(to_mapping(obj), fp, cls=cls, **kwargs)
