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"""Exceptions raise by Executors."""
from typing import Set
from parsl.errors import ParslError
from parsl.executors.base import ParslExecutor
class ExecutorError(ParslError):
"""Base class for executor related exceptions.
Only to be invoked when only a more specific error is not available.
"""
def __init__(self, executor: ParslExecutor, reason: str):
self.executor = executor
self.reason = reason
def __str__(self):
return "Executor {0} failed due to: {1}".format(self.executor.label, self.reason)
class BadStateException(ExecutorError):
"""Error returned by task Futures when an executor is in a bad state.
"""
def __init__(self, executor, exception):
super().__init__(executor, str(exception))
class UnsupportedFeatureError(ExecutorError):
"""Error raised when attemping to use unsupported feature in an Executor"""
def __init__(self, feature, current_executor, target_executor):
self.feature = feature
self.current_executor = current_executor
self.target_executor = target_executor
def __str__(self):
if self.target_executor:
return "The {} feature is unsupported in {}. \
Please checkout {} for this feature".format(self.feature,
self.current_executor,
self.target_executor)
else:
return "The {} feature is unsupported in {}.".format(self.feature,
self.current_executor)
class InvalidResourceSpecification(ExecutorError):
"""Error raised when Invalid input is supplied via resource Specification"""
def __init__(self, invalid_keys: Set[str], message: str = ''):
self.invalid_keys = invalid_keys
self.message = message
def __str__(self):
return f"Invalid Resource Specification Supplied: {self.invalid_keys}. {self.message}"
class ScalingFailed(ExecutorError):
"""Scaling failed due to error in Execution provider."""
def __str__(self):
return f"Executor {self.executor.label} failed to scale due to: {self.reason}"
class BadMessage(ParslError):
""" Mangled/Poorly formatted/Unsupported message received
"""
def __init__(self, reason):
self.reason = reason
def __str__(self):
return "Received an unsupported message. Reason:{}".format(self.reason)
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