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#
# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import os
from vts.proto import VtsReportMessage_pb2 as ReportMsg
from vts.runners.host import keys
from vts.utils.python.systrace import systrace_controller
from vts.utils.python.web import feature_utils
_SYSTRACE_CONTROLLER = "systrace_controller"
class SystraceFeature(feature_utils.Feature):
"""Feature object for systrace functionality.
Attributes:
enabled: boolean, True if systrace is enabled, False otherwise
web: (optional) WebFeature, object storing web feature util for test run
"""
_TOGGLE_PARAM = keys.ConfigKeys.IKEY_ENABLE_SYSTRACE
_REQUIRED_PARAMS = [
keys.ConfigKeys.KEY_TESTBED_NAME, keys.ConfigKeys.IKEY_ANDROID_DEVICE,
keys.ConfigKeys.IKEY_DATA_FILE_PATH,
keys.ConfigKeys.IKEY_SYSTRACE_REPORT_PATH,
keys.ConfigKeys.IKEY_SYSTRACE_REPORT_URL_PREFIX
]
_OPTIONAL_PARAMS = [keys.ConfigKeys.IKEY_SYSTRACE_PROCESS_NAME]
def __init__(self, user_params, web=None):
"""Initializes the systrace feature.
Args:
user_params: A dictionary from parameter name (String) to parameter value.
web: (optional) WebFeature, object storing web feature util for test run
"""
self.ParseParameters(self._TOGGLE_PARAM, self._REQUIRED_PARAMS,
self._OPTIONAL_PARAMS, user_params)
self.web = web
if self.enabled:
logging.info("Systrace is enabled.")
else:
logging.debug("Systrace is disabled.")
def StartSystrace(self):
"""Initialize systrace controller if enabled.
Requires the feature to be enabled; no-op otherwise.
"""
if not self.enabled:
return
process_name = getattr(self,
keys.ConfigKeys.IKEY_SYSTRACE_PROCESS_NAME, '')
process_name = str(process_name)
data_file_path = getattr(self, keys.ConfigKeys.IKEY_DATA_FILE_PATH)
# TODO: handle device_serial for multi-device
android_devices = getattr(self, keys.ConfigKeys.IKEY_ANDROID_DEVICE)
if not isinstance(android_devices, list):
logging.warn("android device information not available")
return
device_spec = android_devices[0]
serial = device_spec.get(keys.ConfigKeys.IKEY_SERIAL)
if not serial:
logging.error("Serial for device at index 0 is not available.")
self.enabled = False
serial = str(serial)
android_vts_path = os.path.normpath(os.path.join(data_file_path, '..'))
self.controller = systrace_controller.SystraceController(
android_vts_path, device_serial=serial, process_name=process_name)
self.controller.Start()
def ProcessAndUploadSystrace(self, test_name):
"""Stops and outputs the systrace data to configured path.
Requires the feature to be enabled; no-op otherwise.
Args:
test_name: String, the name of the test
"""
if not self.enabled:
return
controller = getattr(self, "controller", None)
if not controller:
logging.warn("ProcessSystrace: missing systrace controller")
return
controller.Stop()
if not controller.has_output:
logging.warn("ProcessSystrace: systrace controller has no output")
return
try:
test_module_name = getattr(self, keys.ConfigKeys.KEY_TESTBED_NAME)
process = controller.process_name
time = feature_utils.GetTimestamp()
report_path = getattr(self,
keys.ConfigKeys.IKEY_SYSTRACE_REPORT_PATH)
report_destination_file_name = 'systrace_{test}_{process}_{time}.html'.format(
test=test_name, process=process, time=time)
report_destination_file_path = os.path.join(
report_path, report_destination_file_name)
if controller.SaveLastOutput(report_destination_file_path):
logging.debug('Systrace output saved to %s',
report_destination_file_path)
else:
logging.error('Failed to save systrace output.')
report_url_prefix = getattr(
self, keys.ConfigKeys.IKEY_SYSTRACE_REPORT_URL_PREFIX)
report_url_prefix = str(report_url_prefix)
report_destination_file_url = '%s%s' % (
report_url_prefix, report_destination_file_name)
if self.web and self.web.enabled:
self.web.AddSystraceUrl(report_destination_file_url)
logging.info('systrace result path %s .',
report_destination_file_url)
except Exception as e: # TODO(yuexima): more specific exceptions catch
logging.exception('Failed to add systrace to report message %s', e)
finally:
if not controller.ClearLastOutput():
logging.error('failed to clear last systrace output.')