def load_filtered_and_merged_tree(row: Row) -> Optional[StructuredDataNode]:
"""Load inventory tree from file, status data tree from row,
merge these trees and returns the filtered tree"""
hostname = row.get("host_name")
inventory_tree = _load_structured_data_tree("inventory", hostname)
status_data_tree = _create_tree_from_raw_tree(row.get("host_structured_status"))
# If no data from livestatus could be fetched (CRE) try to load from cache
# or status dir
if status_data_tree is None:
status_data_tree = _load_structured_data_tree("status_data", hostname)
merged_tree = _merge_inventory_and_status_data_tree(inventory_tree, status_data_tree)
return _filter_tree(merged_tree)
def metric_expression_to_graph_recipe_expression(
expression: MetricExpression,
translated_metrics: TranslatedMetrics,
lq_row: Row,
enforced_consolidation_function: Optional[GraphConsoldiationFunction],
) -> StackElement:
"""Convert 'user,util,+,2,*' into this:
('operator',
'*',
[('operator',
'+',
[('rrd',
'heute',
u'heute',
u'CPU utilization',
...."""
rrd_base_element = (
"rrd",
lq_row["site"],
lq_row["host_name"],
lq_row.get("service_description", "_HOST_"),
)
expression = split_expression(expression)[0]
atoms: List[RPNAtom] = []
# Break the RPN into parts and translate each part separately
for part, cf in iter_rpn_expression(expression,
enforced_consolidation_function):
# Some parts are operators. We leave them. We are just interested in
# names of metrics.
if part in translated_metrics: # name of a variable that we know
tme = translated_metrics[part]
metric_names = tme.get("orig_name",
[part]) # original name before translation
# We do the replacement of special characters with _ right here.
# Normally it should be a task of the core. But: We have variables
# named "/" - which is very silly, but is due to the bogus perf names
# of the df check. So the CMC could not really distinguish this from
# the RPN operator /.
for metric_name, scale in zip(metric_names, tme["scale"]):
atoms.append(rrd_base_element +
(pnp_cleanup(metric_name), cf, scale))
if len(metric_names) > 1:
atoms.append(("operator", "MERGE"))
else:
try:
atoms.append(("constant", float(part)))
except ValueError:
atoms.append(("operator", part))
return stack_resolver(
atoms,
is_operator=lambda x: x[0] == "operator",
apply_operator=lambda op, a, b: (op + ([a, b], )),
apply_element=lambda x: x,
)
def _load_status_data_tree(hostname: Optional[HostName],
row: Row) -> Optional[StructuredDataNode]:
# If no data from livestatus could be fetched (CRE) try to load from cache
# or status dir
raw_status_data_tree = row.get("host_structured_status")
if not raw_status_data_tree:
return _load_structured_data_tree("status_data", hostname)
return StructuredDataNode.deserialize(
ast.literal_eval(raw_status_data_tree.decode("utf-8")))
def load_filtered_and_merged_tree(row: Row) -> Optional[StructuredDataNode]:
"""Load inventory tree from file, status data tree from row,
merge these trees and returns the filtered tree"""
hostname = row.get("host_name")
inventory_tree = _load_structured_data_tree("inventory", hostname)
status_data_tree = _load_status_data_tree(hostname, row)
merged_tree = _merge_inventory_and_status_data_tree(
inventory_tree, status_data_tree)
return _filter_tree(merged_tree)
def render(
self,
what: str,
row: Row,
tags: List[TagID],
custom_vars: Dict[str, str],
) -> Union[None, str, HTML, Tuple[str, str], Tuple[str, str, str]]:
if row.get("service_check_command") != "check_mk-robotmk":
return None
return (
"robotmk", # TODO add icon
_("Robotmk report of this service"),
makeuri_contextless(
request,
[
("site", row["site"]),
("host", row["host_name"]),
("service", row["service_description"]),
],
filename="robotmk.py",
),
)
def column_age_in_range(row: Row, column: str, bounds: MaybeBounds) -> bool:
value = row.get(column)
if not isinstance(value, (int, float)):
return False
return value_in_range(time.time() - value, bounds)
