def test_convert(self):
v = WorkspaceVariable.convert("Index", 1.2)
assert (v == 1)
v = WorkspaceVariable.convert("String", "string")
assert (v == "string")
v = WorkspaceVariable.convert("Numeric", 1)
assert (type(v) == np.float64)
v = WorkspaceVariable.convert("Vector", 1.0)
assert (v.shape == (1, ))
v = WorkspaceVariable.convert("Matrix", 1.0)
assert (v.shape == (1, 1))
v = WorkspaceVariable.convert("Tensor3", 1.0)
assert (v.shape == (1, 1, 1))
v = WorkspaceVariable.convert("Tensor6", 1.0)
assert (v.shape == (1, 1, 1, 1, 1, 1))
v = WorkspaceVariable.convert("ArrayOfArrayOfIndex", 1.0)
assert (type(v) == list)
assert (type(v[0]) == list)
assert (type(v[0][0]) == int)
v = WorkspaceVariable.convert("ArrayOfArrayOfIndex", 1)
return v
def add_method(*args, **kwargs):
"""
Add a workspace method call to the agenda.
Parameters:
ws(typhon.arts.workspace.Workspace): A (dummy) workspace object.
m(typhon.arts.workspace.WorkspaceMethod): The method to add to the
agenda
*args: Positional arguments of the WSM call to add to the agenda.
**kwargs: Key-word arguments of the WSM call to add to the agenda.
"""
from typhon.arts.workspace.variables import group_names
if len(args) < 3:
raise Exception("Need at least self, a workspace and the method to"
" add as arguments.")
self = args[0]
ws = args[1]
m = args[2]
m_id, args_out, args_in, temps = m._parse_output_input_lists(ws,
args[3:],
kwargs)
arg_out_ptr = c.cast((c.c_long * len(args_out))(*args_out),
c.POINTER(c.c_long))
arg_in_ptr = c.cast((c.c_long * len(args_in))(*args_in),
c.POINTER(c.c_long))
if not m.name[-3:] == "Set" or not m.name[:-3] in group_names:
for t in temps:
arts_api.agenda_insert_set(ws.ptr, self.ptr, t.ws_id, t.group_id)
arts_api.agenda_add_method(c.c_void_p(self.ptr), m_id,
len(args_out), arg_out_ptr,
len(args_in), arg_in_ptr)
else:
from typhon.arts.workspace.variables import WorkspaceVariable
name_out = WorkspaceVariable.get_variable_name(args_out[0])
name_in = WorkspaceVariable.get_variable_name(args_in[0])
wsv_out = getattr(ws, name_out)
wsv_in = getattr(ws, name_in)
ws.Copy(wsv_out, wsv_in)
group_id = arts_api.get_variable(args_out[0]).group
arts_api.agenda_insert_set(ws.ptr, self.ptr, args_out[0], group_id)
def add_variable(self, var):
"""
This will try to copy a given python variable to the ARTS workspace and
return a WorkspaceVariable object representing this newly created
variable.
Types are natively supported by the C API are int, str, [str], [int], and
numpy.ndarrays. These will be copied directly into the newly created WSV.
In addition to that all typhon ARTS types the can be stored to XML can
be set to a WSV, but in this case the communication will happen through
the file systs (cf. WorkspaceVariable.from_typhon).
The user should not have to call this method explicitly, but instead it
is used by the WorkspaceMethod call function to transfer python
variable arguments to the ARTS workspace.
Args:
var: Python variable of type int, str, [str], [int] or np.ndarray
which should be copied to the workspace.
"""
if type(var) == WorkspaceVariable:
return var
# Create WSV in ARTS Workspace
group_id = WorkspaceVariable.get_group_id(var)
ws_id = arts_api.add_variable(self.ptr, group_id, None)
wsv = WorkspaceVariable(ws_id, str(id(var)), group_names[group_id],
"User defined variable.", self)
# Set WSV value using the ARTS C API
s = VariableValueStruct(var)
if s.ptr:
e = arts_api.set_variable_value(self.ptr, ws_id, group_id, s)
if e:
arts_api.erase_variable(self.ptr, ws_id, group_id)
raise Exception("Setting of workspace variable through C API "
" failed with the " + "following error:\n" +
e.decode("utf8"))
# If the type is not supported by the C API try to write the type to XML
# and read into ARTS workspace.
else:
try:
wsv.from_typhon(var)
except:
raise Exception("Could not add variable since + " +
str(type(var)) + " is neither supported by " +
"the C API nor typhon XML IO.")
return wsv
def __getattr__(self, name):
""" Lookup the given variable in the local variables and the ARTS workspace.
Args:
name(str): Name of the attribute (variable)
Raises:
ValueError: If the variable is not found.
"""
group_id = None
if name in self._vars:
var = self._vars[name]
var.update()
return var
else:
i = arts_api.lookup_workspace_variable(name.encode())
if i < 0:
raise AttributeError("No workspace variable " + str(name) + " found.")
vs = arts_api.get_variable(i)
group_id = vs.group
description = vs.description.decode("utf8")
# Get its symbolic representation
wsv = WorkspaceVariable(i, name, group_names[group_id], description, self)
return wsv
def create_variable(self, group, name):
"""
Create a workspace variable.
Args:
group: The group name of the variable to create.
name: The name of the variable to create. If None, the
ARTS API will assign a unique name.
"""
if not name is None:
name = name.encode()
group_id = group_ids[group]
ws_id = arts_api.add_variable(self.ptr, group_id, name)
v = arts_api.get_variable(ws_id)
wsv = WorkspaceVariable(ws_id,
v.name.decode(),
group_names[group_id],
"User defined variable.",
self)
self._vars[wsv.name] = wsv
return wsv
def get_default_input_dict(m_id, g_in):
"""Get dict mapping names of generic input arguments to default values.
Is None if no default value for a given generic input is given.
Args:
m_id(int): Index of the method.
g_in([str]): Names of the generic input arguments.
Return:
dict: The mapping.
"""
res = dict()
for i, t in enumerate(g_in):
k = arts_api.get_method_g_in(m_id, i).decode("utf8")
d = arts_api.get_method_g_in_default(m_id, i).decode("utf8")
if d == "":
pass
elif d[0] == "@":
d = None
elif d == "Inf":
res[k] = np.float64("inf")
else:
try:
d = WorkspaceVariable.convert(group_names[t],
ast.literal_eval(d))
res[k] = d
except:
res[k] = d
return res
def add_variable(self, var):
"""
This will try to copy a given python variable to the ARTS workspace and return
a WorkspaceVariable object representing this newly created variable. Currently
supported types are int, str, [str], [int], and numpy.ndarrays, which will
automatically converted to the corresponding values ARTS groups.
The user should not have to call this method explicitly, but instead it is used by
the WorkspaceMethod call function to transfer python variable arguments to the
ARTS workspace.
Args:
var: Python variable of type int, str, [str], [int] or np.ndarray which should
be copied to the workspace.
"""
if type(var) == WorkspaceVariable:
return var
group_id = WorkspaceVariable.get_group_id(var)
s = VariableValueStruct(var)
ws_id = arts_api.add_variable(self.ptr, group_id, None)
arts_api.set_variable_value(self.ptr, ws_id, group_id, s)
return WorkspaceVariable(ws_id, str(id(var)), group_names[group_id],
"User defined variable.", self)
def create(self, ws, name=None):
"""
Call to <Group>Create WSMs are handled differently. This method simply
determines the group type from the function name and then add a variable of
this type to the workspace ws. A handle of this variable is then added to
as attribute to the typhon.arts.workspace.variables module.
Args:
ws(Workspace): Workspace object to add the variable to
name(str): Name of the variable to add to the workspace
"""
group = WorkspaceMethod.create_regexp.match(self.name).group(1)
group_id = group_ids[group]
if not name:
name = "__anonymous_" + str(len(ws._vars))
ws_id = arts_api.add_variable(ws.ptr, group_id, name.encode())
else:
# Is there a WSM with that name?
if name in workspace_methods.keys():
raise Exception("A WSM with the name " + name +
" already exists.")
# Is there a WSV with that name?
ws_id = arts_api.lookup_workspace_variable(name.encode())
# Is yes, check that it is of the same group?
if not ws_id == -1:
v = arts_api.get_variable(ws_id)
if not v.group == group_id:
raise Exception("A WSV with the name " + name +
" but of goup " + group_names[v.group] +
" already exists.")
# Otherwise we add the variable.
else:
ws_id = arts_api.add_variable(ws.ptr, group_id, name.encode())
wsv = WorkspaceVariable(ws_id, name, group, "User defined variable.",
ws)
setattr(variables, name, wsv)
ws._vars[name] = wsv
return wsv
def create(self, ws, name=None):
"""
Call to <Group>Create WSMs are handled differently. This method simply
determines the group type from the function name and then add a variable of
this type to the workspace ws. A handle of this variable is then added to
as attribute to the typhon.arts.workspace.variables module.
Args:
ws(Workspace): Workspace object to add the variable to
name(str): Name of the variable to add to the workspace
"""
if not name:
name = "__anonymous_" + str(len(ws.vars))
group = WorkspaceMethod.create_regexp.match(self.name).group(1)
group_id = group_ids[group]
ws_id = arts_api.add_variable(ws.ptr, group_id)
wsv = WorkspaceVariable(ws_id, name, group, "User defined variable.",
ws)
setattr(variables, name, wsv)
ws.vars[name] = wsv
return wsv
def _parse_output_input_lists(self, ws, args, kwargs):
n_args = self.n_g_out + self.n_g_in
ins = self.ins
temps = []
# Add positional arguments to kwargs
if (len(args)) and (len(args)) < self.n_g_out + self.n_in:
raise Exception("Only " + str(len(args)) +
"positional arguments provided " + "but WSM " +
self.name + "requires at least " +
str(self.n_g_out + self.n_in))
for j in range(len(args)):
if j < self.n_g_out:
name = self.g_out[j]
try:
kwargs[name] = args[j]
except:
raise Exception("Generic parameter " + str(name) +
" set twice.")
elif j < self.n_g_out + self.n_in:
if type(args[j]) == WorkspaceVariable:
ins[j - self.n_g_out] = args[j].ws_id
else:
temps.append(ws.add_variable(args[j]))
ins[j - self.n_g_out] = temps[-1].ws_id
elif j < self.n_g_out + self.n_in + self.n_g_in:
name = self.g_in[j - self.n_g_out - self.n_in]
try:
kwargs[name] = args[j]
except:
raise Exception("Generic parameter " + str(name) +
" set twice.")
else:
raise Exception(
str(j) +
" positional arguments given, but this WSM expects " +
str(j - 1) + ".")
# Check output argument names
g_output_args = dict()
for k in self.g_out:
if not k in kwargs:
raise Exception("WSM " + self.name + " needs generic output " +
k)
else:
g_output_args[k] = kwargs[k]
# Check input argument names
g_input_args = dict()
for k in self.g_in:
if not k in kwargs:
if k in self.g_in_default:
g_input_args[k] = self.g_in_default[k]
else:
raise Exception("WSM " + self.name +
" needs generic input " + k)
else:
g_input_args[k] = kwargs[k]
# Resolve overload (if necessary).
g_out_types = dict([(k,
WorkspaceVariable.get_group_id(g_output_args[k]))
for k in self.g_out])
g_in_types = dict([(k, WorkspaceVariable.get_group_id(g_input_args[k]))
for k in self.g_in])
m_id = self.m_ids[0]
sg_index = 0
if (len(self.m_ids) > 1):
out_indices = [
i for i, ts in enumerate(self.g_out_types) if ts == g_out_types
]
in_indices = [
i for i, ts in enumerate(self.g_in_types) if ts == g_in_types
]
sg_indices = set(out_indices) & set(in_indices)
if len(sg_indices) > 1:
raise Exception(
"Could not uniquely resolve super-generic overload.")
sg_index = sg_indices.pop()
m_id = self.m_ids[sg_index]
# Combine input and output arguments into lists.
arts_args_out = []
for out in self.outs:
arts_args_out.append(out)
for name in self.g_out:
arg = g_output_args[name]
if not type(arg) == WorkspaceVariable:
raise ValueError("Generic Output " + name +
" must be an ARTS WSV.")
group_id = arg.group_id
expected = self.g_out_types[sg_index][name]
if not group_id == expected:
raise Exception("Generic output " + name +
" expected to be of type " +
group_names[expected])
arts_args_out.append(arg.ws_id)
arts_args_in = []
for i in ins:
if not i in self.outs:
arts_args_in.append(i)
for name in self.g_in:
arg = g_input_args[name]
if type(arg) == WorkspaceVariable:
arts_args_in.append(arg.ws_id)
else:
group_id = WorkspaceVariable.get_group_id(arg)
expected = self.g_in_types[sg_index][name]
if not group_id == expected:
raise Exception("Generic input " + name +
" expected to be of type " +
group_names[expected])
temps.append(ws.add_variable(arg))
arts_args_in.append(temps[-1].ws_id)
return (m_id, arts_args_out, arts_args_in, temps)
