def create_graph_recipes(self, ident_info, destination=None):
graph_identification_info = ident_info
def get_info(key):
try:
return graph_identification_info[key]
except KeyError:
raise MKUserError(
None,
_("Graph identification: The '%s' attribute is missing") %
key)
site = get_info('site')
host_name = get_info('host_name')
service_description = get_info('service_description')
row = get_graph_data_from_livestatus(site, host_name,
service_description)
translated_metrics = translated_metrics_from_row(row)
graph_recipes = []
for index, graph_template in matching_graph_templates(
graph_identification_info,
translated_metrics,
):
graph_recipe = create_graph_recipe_from_template(
graph_template,
translated_metrics,
row,
)
# Put the specification of this graph into the graph_recipe
spec_info = graph_identification_info.copy()
spec_info["graph_index"] = index
graph_recipe["specification"] = ("template", spec_info)
graph_recipes.append(graph_recipe)
return graph_recipes
def _answer_graph_image_request() -> None:
try:
host_name = request.var("host")
if not host_name:
raise MKGeneralException(_("Missing mandatory \"host\" parameter"))
service_description = request.var("service", "_HOST_")
site = request.var("site")
# FIXME: We should really enforce site here. But it seems that the notification context
# has no idea about the site of the host. This could be optimized later.
#if not site:
# raise MKGeneralException("Missing mandatory \"site\" parameter")
try:
row = get_graph_data_from_livestatus(site, host_name, service_description)
except livestatus.MKLivestatusNotFoundError:
if config.debug:
raise
raise Exception(
_("Cannot render graph: host %s, service %s not found.") %
(host_name, service_description))
site = row["site"]
# Always use 25h graph in notifications
end_time = time.time()
start_time = end_time - (25 * 3600)
graph_render_options = graph_image_render_options()
graph_identification = (
"template",
{
"site": site,
"host_name": host_name,
"service_description": service_description,
"graph_index": None, # all graphs
})
graph_data_range = graph_image_data_range(graph_render_options, start_time, end_time)
graph_recipes = graph_identification_types.create_graph_recipes(
graph_identification, destination=html_render.GraphDestinations.notification)
num_graphs = request.get_integer_input("num_graphs") or len(graph_recipes)
graphs = []
for graph_recipe in graph_recipes[:num_graphs]:
graph_artwork = artwork.compute_graph_artwork(graph_recipe, graph_data_range,
graph_render_options)
graph_png = render_graph_image(graph_artwork, graph_data_range, graph_render_options)
graphs.append(base64.b64encode(graph_png).decode("ascii"))
response.set_data(json.dumps(graphs))
except Exception as e:
logger.error("Call to ajax_graph_images.py failed: %s\n%s", e, traceback.format_exc())
if config.debug:
raise
def create_graph_recipes(self,
ident_info,
destination=None) -> Sequence[GraphRecipe]:
graph_identification_info = ident_info
def get_info(key):
try:
return graph_identification_info[key]
except KeyError:
raise MKUserError(
None,
_("Graph identification: The '%s' attribute is missing") %
key)
site = get_info("site")
host_name = get_info("host_name")
service_description = get_info("service_description")
row = get_graph_data_from_livestatus(site, host_name,
service_description)
translated_metrics = translated_metrics_from_row(row)
graph_recipes = []
for index, graph_template in matching_graph_templates(
graph_identification_info,
translated_metrics,
):
graph_template_tuned = self.template_tuning(
graph_template,
site=site,
host_name=host_name,
service_description=service_description,
destination=destination,
)
if graph_template_tuned is None:
continue
graph_recipe = create_graph_recipe_from_template(
graph_template_tuned,
translated_metrics,
row,
)
# Put the specification of this graph into the graph_recipe
spec_info = graph_identification_info.copy()
# Performance graph dashlets already use graph_id, but for example in reports, we still
# use graph_index. We should switch to graph_id everywhere (CMK-7308). Once this is
# done, we can remove the line below.
spec_info["graph_index"] = index
spec_info["graph_id"] = graph_template_tuned["id"]
graph_recipe["specification"] = ("template", spec_info)
graph_recipes.append(graph_recipe)
return graph_recipes