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import logging
import logging.config
import time
from abc import ABC, abstractmethod
from typing import List
from onapsdk.aai.business import Customer
from onapsdk.configuration import settings
from onapsdk.exceptions import SettingsError
from .reports_collection import Report, ReportsCollection, ReportStepStatus
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_time: float = 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()
return self._reports_collection
@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):
def wrapper(self, *args, **kwargs):
try:
ret = fun(self, *args, **kwargs)
execution_status: ReportStepStatus = ReportStepStatus.PASS
return ret
except Exception:
execution_status: ReportStepStatus = ReportStepStatus.FAIL
raise
finally:
if not self._start_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._start_time = time.time()
self.reports_collection.put(
Report(
step_description=f"[{self.component}] {self.name}: {self.description}",
step_execution_status=execution_status,
step_execution_duration=time.time() - self._start_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:
step.execute()
self._start_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:
step.cleanup()
@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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