def get_fixed_states(self, resource=None, filter_horizon=False):
"""
This function returns the fixed states in the beginning of the planning period
They can be maintenances or mission assignments
They include previous states too
:param resource: if given filters only for that resource
:return:
"""
previous_states = self.get_prev_states(resource)
first_period = self.get_param('start')
period_0 = self.get_prev_period(first_period)
min_assign = self.get_min_assign()
# we get the states into a tuple list,
# we turn them into a start-finish tuple
# we filter it so we only take the start-finish periods that end before the horizon
assignments = \
previous_states.to_start_finish(self.compare_tups).\
vfilter(lambda x: x[3] == period_0)
fixed_assignments_q = \
[(a[0], a[2], min_assign.get(a[2], 0) - len(self.get_periods_range(a[1], a[3])))
for a in assignments if len(self.get_periods_range(a[1], a[3])) < min_assign.get(a[2], 0)]
fixed_future = tl.TupList([(f_assign[0], f_assign[1],
self.shift_period(first_period, t))
for f_assign in fixed_assignments_q
for t in range(f_assign[2])])
previous_n = tl.TupList((r, s, t) for r, t, s in previous_states)
if not filter_horizon:
fixed_future.extend(previous_n)
return fixed_future
def get_fixed_maintenances(self, dict_key=None, *args, **kwargs):
fixed_states = self.get_fixed_states(*args, **kwargs)
fixed_maints = tl.TupList([(a, t) for (a, s, t) in fixed_states
if s == 'M'])
if dict_key is None:
return fixed_maints
if dict_key == 'resource':
return fixed_maints.to_dict(result_col=1)
if dict_key == 'period':
return fixed_maints.to_dict(result_col=0)
def get_maintenance_periods(self, resource=None, state_list=None):
"""
:param str resource: optional resource to filter
:param set state_list: maintenances to filter
:return: (resource, maint_start, maint_stop)
:rtype: tl.TupList
"""
if state_list is None:
state_list = set('M')
all_states = self.get_states(resource)
maintenances = tl.TupList([(k[0], k[1]) for k in all_states
if k[2] in state_list])
ct = self.instance.compare_tups
return maintenances.to_start_finish(ct)
def get_states(self, resource=None):
"""
:param str resource: optional filter
:return: (resource, period, state) list
:rtype: tl.TupList
"""
# in the input examples of the instance
# (although for now this is the case)
maints_codes = self.instance.get_maintenances()
previous_states = self.instance.get_prev_states(resource).\
vfilter(lambda x: x[2] in maints_codes)
states = self.solution.get_state_tuplist(resource)
previous_states.extend(states)
return tl.TupList(previous_states).unique2()
def get_non_maintenance_periods(self, resource=None, state_list=None):
"""
:return: a tuplist with the following structure:
resource: [(resource, start_period1, end_period1), (resource, start_period2, end_period2), ..., (resource, start_periodN, end_periodN)]
two consecutive periods being separated by a maintenance operation.
It's built using the information of the maintenance operations.
:param resource: if not None, we filter to only provide this resource's info
:return: a tuplist with the following structure:
resource: [(resource, start_period1, end_period1), (resource, start_period2, end_period2), ..., (resource, start_periodN, end_periodN)]
two consecutive periods being separated by a maintenance operation.
It's built using the information of the maintenance operations.
"""
# TODO: change to:
# cycles_dict = self.get_all_maintenance_cycles(resource)
# return cycles_dict.to_tuplist()
first, last = self.instance.get_param(
'start'), self.instance.get_param('end')
maintenances = \
self.get_maintenance_periods(resource, state_list=state_list).\
to_dict(result_col=[1, 2])
if resource is None:
resources = self.instance.get_resources()
else:
resources = [resource]
# we initialize nomaint periods for resources that do not have a single maintenance:
nonmaintenances = [(r, first, last) for r in resources
if r not in maintenances]
# now, we iterate over all maintenances to add the before and the after
for res in maintenances:
maints = sorted(maintenances[res], key=lambda x: x[0])
first_maint_start = maints[0][0]
last_maint_end = maints[-1][1]
if first_maint_start > first:
first_maint_start_prev = self.instance.get_prev_period(
first_maint_start)
nonmaintenances.append((res, first, first_maint_start_prev))
for maint1, maint2 in zip(maints, maints[1:]):
start = self.instance.get_next_period(maint1[1])
end = self.instance.get_prev_period(maint2[0])
nonmaintenances.append((res, start, end))
if last_maint_end != last:
start = self.instance.get_next_period(last_maint_end)
nonmaintenances.append((res, start, last))
return tl.TupList(nonmaintenances)
def get_all_maintenance_cycles(self, resource=None):
"""
gets all periods in between maintenances for all resources
:return: dictionary indexed by resource of a list of tuples.
{resource: [(start1, stop1), (start2, stop2)]}
:rtype: :py:class:`pytups.SuperDict`
"""
starts_stops = self.get_maintenance_periods(resource=resource)
if resource is None:
resources = self.instance.get_resources()
else:
resources = [resource]
return \
tl.TupList(starts_stops).\
to_dict(result_col=[1, 2]).\
vapply(sorted). \
fill_with_default(keys=resources, default=[]). \
vapply(self.get_maintenance_cycles)
def get_instances_paths(self):
num_slashes = 2
keys_positions = [1, 2]
if self.no_scenario:
num_slashes = 1
keys_positions = 1
zipobj = zipfile.ZipFile(self.path)
all_files = tl.TupList(di.dirs_in_zip(zipobj))
scenario_instances = all_files.vfilter(
lambda f: f.count("/") == num_slashes)
keys = (scenario_instances.vapply(
str.split, "/").vapply(tuple).take(keys_positions))
result_dict = sd.SuperDict(zip(keys, scenario_instances))
if self.scenarios:
scenarios = set(self.scenarios)
return result_dict.kfilter(lambda k: k[0] in scenarios)
else:
return result_dict
def check_min_max_assignment(self, **params):
"""
:return: periods were the min assignment (including maintenance)
in format: (resource, start, end): error.
if error negative: bigger than max. Otherwise: less than min
is not respected
"""
# TODO: do it with self.solution.get_schedule()
tasks = self.solution.get_tasks().to_tuplist()
maints = self.solution.get_state_tuplist()
previous = sd.SuperDict.from_dict(self.instance.get_resources("states")).\
to_dictup().to_tuplist()
min_assign = self.instance.get_min_assign()
max_assign = self.instance.get_max_assign()
num_periods = self.instance.get_param('num_period')
ct = self.instance.compare_tups
all_states = maints + tasks + previous
all_states_periods = \
tl.TupList(all_states).\
sorted(key=lambda v: (v[0], v[2], v[1])).\
to_start_finish(ct, sort=False)
first_period = self.instance.get_param('start')
last_period = self.instance.get_param('end')
incorrect = {}
for (resource, start, state, finish) in all_states_periods:
# periods that finish before the horizon
# or at the end are not checked
if finish < first_period or finish == last_period:
continue
size_period = len(self.instance.get_periods_range(start, finish))
if size_period < min_assign.get(state, 1):
incorrect[resource, start, finish,
state] = min_assign[state] - size_period
elif size_period > max_assign.get(state, num_periods):
incorrect[resource, start, finish,
state] = max_assign[state] - size_period
return sd.SuperDict(incorrect)
def check_maints_size(self, **params):
maints = self.instance.get_maintenances()
duration = maints.get_property('duration_periods')
inst = self.instance
start, end = inst.get_param('start'), inst.get_param('end')
m_s_tab_r = pd.DataFrame.from_records(
self.get_state_periods().to_list(),
columns=['resource', 'start', 'maint', 'end'])
def dist_periods(series, series2):
return pd.Series(
self.instance.get_dist_periods(p, p2)
for p, p2 in zip(series, series2))
# TODO: this check was too strict but the model complied with it, apparently...
inside = (m_s_tab_r.start > start) & (m_s_tab_r.end < end)
m_s_tab = m_s_tab_r[inside].reset_index()
m_s_tab['dist'] = dist_periods(m_s_tab.start, m_s_tab.end) + 1
m_s_tab['duration'] = m_s_tab.maint.map(duration)
m_s_tab['value'] = m_s_tab.dist - m_s_tab.duration
error = m_s_tab[m_s_tab.value != 0]
result = error[['resource', 'start', 'value']].to_records(index=False)
return tl.TupList(result).to_dict(result_col=2, is_list=False)
def get_periods_range(self, start, end):
pos_period = self.get_period_positions()
period_pos = self.get_periods_by_position()
return tl.TupList(period_pos[t]
for t in range(pos_period[start], pos_period[end] +
1))
def get_fixed_tasks(self, *args, **kwargs):
tasks = self.get_tasks()
states = self.get_fixed_states(*args, **kwargs)
return tl.TupList([(a, s, t) for (a, s, t) in states if s in tasks])
def get_state_tuplist(self, resource=None):
states = self.get_state(resource)
return tl.TupList(states.keys())
def get_in_task(self):
tasks = [(t, r) for (r, t) in self.get_tasks()]
return tl.TupList(tasks).\
to_dict(1, is_list=True).\
to_lendict().\
fill_with_default(self.get_periods())
def get_state_tasks(self):
statesMissions = self.get_state_tuplist() + self.get_tasks(
).to_tuplist()
return tl.TupList(statesMissions)
