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# --------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# --------------------------------------------------------------------------------------------
from opencensus.ext.azure import metrics_exporter
from opencensus.stats import aggregation as aggregation_module
from opencensus.stats import measure as measure_module
from opencensus.stats import stats as stats_module
from opencensus.stats import view as view_module
from logger import get_azure_logger
class AzureMonitorMetric:
def __init__(self, test_name, test_description=None):
# oc will automatically search for the ENV VAR 'APPLICATIONINSIGHTS_CONNECTION_STRING'
self.exporter = metrics_exporter.new_metrics_exporter()
self.stats = stats_module.stats
self.view_manager = self.stats.view_manager
self.stats_recorder = self.stats.stats_recorder
self.azure_logger = get_azure_logger(test_name)
self.name = test_name
self.desc = test_description
events_measure_name = "NumEvents" + self.name
events_measure_desc = "The number of events handled by" + self.desc if self.desc else None
memory_measure_name = "Memory " + self.name
memory_measure_desc = "Memory usage percentage for " + self.desc if self.desc else None
cpu_measure_name = "Cpu " + self.name
cpu_measure_desc = "Cpu usage percentage for " + self.desc if self.desc else None
error_measure_name = "Errors " + self.name
error_measure_desc = (
"The number of errors happened while running the test for " + self.desc if self.desc else None
)
self.events_measure = measure_module.MeasureInt(events_measure_name, events_measure_desc, "events")
self.memory_measure = measure_module.MeasureFloat(memory_measure_name, memory_measure_desc)
self.cpu_measure = measure_module.MeasureFloat(cpu_measure_name, cpu_measure_desc)
self.error_measure = measure_module.MeasureInt(error_measure_name, error_measure_desc)
self.events_measure_view = view_module.View(
events_measure_name, events_measure_desc, [], self.events_measure, aggregation_module.SumAggregation()
)
self.memory_measure_view = view_module.View(
memory_measure_name, memory_measure_desc, [], self.memory_measure, aggregation_module.LastValueAggregation()
)
self.cpu_measure_view = view_module.View(
cpu_measure_name, cpu_measure_desc, [], self.cpu_measure, aggregation_module.LastValueAggregation()
)
self.error_measure_view = view_module.View(
error_measure_name, error_measure_desc, [], self.error_measure, aggregation_module.CountAggregation()
)
self.view_manager.register_view(self.events_measure_view)
self.view_manager.register_view(self.memory_measure_view)
self.view_manager.register_view(self.cpu_measure_view)
self.view_manager.register_view(self.error_measure_view)
self.mmap = self.stats_recorder.new_measurement_map()
def record_events_cpu_memory(self, number_of_events, cpu_usage, memory_usage):
self.mmap.measure_int_put(self.events_measure, number_of_events)
self.mmap.measure_float_put(self.memory_measure, memory_usage)
self.mmap.measure_float_put(self.cpu_measure, cpu_usage)
self.mmap.record()
def record_error(self, error, extra=None):
self.mmap.measure_int_put(self.error_measure, 1)
self.mmap.record()
self.azure_logger.exception("Error happened when running %s: %s. Extra info: %s", self.name, repr(error), extra)
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