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import functools
import itertools
import logging
import logging.config
import time
from abc import ABC, abstractmethod
from typing import Iterator, List, Optional
from onapsdk.aai.business import Customer
from onapsdk.configuration import settings
from onapsdk.exceptions import SDKException, SettingsError
from onaptests.steps.reports_collection import Report, ReportsCollection, ReportStepStatus
from onaptests.utils.exceptions import OnapTestException, SubstepExecutionException
class BaseStep(ABC):
"""Base step class."""
_logger: logging.Logger = logging.getLogger("")
def __init_subclass__(cls):
"""Subclass initialization.
Add _logger property for any BaseStep subclass
"""
super().__init_subclass__()
cls._logger: logging.Logger = logging.getLogger("")
logging.config.dictConfig(settings.LOG_CONFIG)
# Setup Proxy if SOCK_HTTP is defined in settings
try:
cls.set_proxy(settings.SOCK_HTTP)
except SettingsError:
pass
def __init__(self, cleanup: bool = False) -> None:
"""Step initialization.
Args:
cleanup(bool, optional): Determines if cleanup action should be called.
"""
self._steps: List["BaseStep"] = []
self._cleanup: bool = cleanup
self._parent: "BaseStep" = None
self._reports_collection: ReportsCollection = None
self._start_execution_time: float = None
self._start_cleanup_time: float = None
self._execution_report: ReportStepStatus = None
self._cleanup_report: ReportStepStatus = None
def add_step(self, step: "BaseStep") -> None:
"""Add substep.
Add substep and mark step as a substep parent.
Args:
step (BaseStep): Step object
"""
self._steps.append(step)
step._parent: "BaseStep" = self
@property
def parent(self) -> "BaseStep":
"""Step parent.
If parent is not set the step is a root one.
"""
return self._parent
@property
def is_root(self) -> bool:
"""Is a root step.
Step is a root if has no parent
Returns:
bool: True if step is a root step, False otherwise
"""
return self._parent is None
@property
def reports_collection(self) -> ReportsCollection:
"""Collection to store step reports.
Store there if step result is "PASS" or "FAIL"
Returns:
Queue: Thread safe collection to store reports
"""
if not self.is_root:
return self.parent.reports_collection
if not self._reports_collection:
self._reports_collection = ReportsCollection()
for step_report in itertools.chain(self.execution_reports, self.cleanup_reports):
self._reports_collection.put(step_report)
return self._reports_collection
@property
def execution_reports(self) -> Iterator[ReportsCollection]:
"""Execution reports generator.
Steps tree postorder traversal
Yields:
Iterator[ReportsCollection]: Step execution report
"""
for step in self._steps:
yield from step.execution_reports
if self._execution_report:
yield self._execution_report
@property
def cleanup_reports(self) -> Iterator[ReportsCollection]:
"""Cleanup reports generator.
Steps tree preorder traversal
Yields:
Iterator[ReportsCollection]: Step cleanup report
"""
if self._cleanup:
if self._cleanup_report:
yield self._cleanup_report
for step in self._steps:
yield from step.cleanup_reports
@property
def name(self) -> str:
"""Step name."""
return self.__class__.__name__
@property
@abstractmethod
def description(self) -> str:
"""Step description.
Used for reports
Returns:
str: Step description
"""
@property
@abstractmethod
def component(self) -> str:
"""Component name.
Name of component which step is related with.
Most is the name of ONAP component.
Returns:
str: Component name
"""
@classmethod
def store_state(cls, fun=None, *, cleanup=False):
if fun is None:
return functools.partial(cls.store_state, cleanup=cleanup)
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
if cleanup:
self._start_cleanup_time = time.time()
execution_status: Optional[ReportStepStatus] = None
ret = fun(self, *args, **kwargs)
execution_status = ReportStepStatus.PASS
return ret
except SubstepExecutionException:
execution_status = ReportStepStatus.PASS if cleanup else ReportStepStatus.NOT_EXECUTED
raise
except (OnapTestException, SDKException):
execution_status = ReportStepStatus.FAIL
raise
finally:
if cleanup:
self._cleanup_report = Report(
step_description=f"[{self.component}] {self.name} cleanup: {self.description}",
step_execution_status=execution_status,
step_execution_duration=time.time() - self._start_cleanup_time
)
else:
if not self._start_execution_time:
self._logger.error("No execution start time saved for %s step. Fix it by call `super.execute()` "
"in step class `execute()` method definition", self.name)
self._start_execution_time = time.time()
self._execution_report = Report(
step_description=f"[{self.component}] {self.name}: {self.description}",
step_execution_status=execution_status if execution_status else ReportStepStatus.FAIL,
step_execution_duration=time.time() - self._start_execution_time
)
return wrapper
def execute(self) -> None:
"""Step's action execution.
Run all substeps action before it's own action.
Override this method and remember to call `super().execute()` before.
"""
for step in self._steps:
try:
step.execute()
except (OnapTestException, SDKException) as substep_err:
raise SubstepExecutionException from substep_err
self._start_execution_time = time.time()
def cleanup(self) -> None:
"""Step's cleanup.
Not all steps has to have cleanup method
"""
if self._cleanup:
for step in self._steps:
try:
step.cleanup()
except (OnapTestException, SDKException) as substep_err:
raise SubstepExecutionException from substep_err
@classmethod
def set_proxy(cls, sock_http):
"""Set sock proxy."""
onap_proxy = {}
onap_proxy['http'] = sock_http
onap_proxy['https'] = sock_http
Customer.set_proxy(onap_proxy)
class YamlTemplateBaseStep(BaseStep, ABC):
"""Base YAML template step."""
@property
@abstractmethod
def yaml_template(self) -> dict:
"""YAML template abstract property.
Every YAML template step need to implement that property.
Returns:
dict: YAML template
"""
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