class _TaskScaffolding:
"""Helper class aggregating information about a `PipelineTask`, used when
constructing a `QuantumGraph`.
See `_PipelineScaffolding` for a top-down description of the full
scaffolding data structure.
Parameters
----------
taskDef : `TaskDef`
Data structure that identifies the task class and its config.
parent : `_PipelineScaffolding`
The parent data structure that will hold the instance being
constructed.
datasetTypes : `TaskDatasetTypes`
Data structure that categorizes the dataset types used by this task.
Raises
------
GraphBuilderError
Raised if the task's dimensions are not a subset of the union of the
pipeline's dataset dimensions.
"""
def __init__(self, taskDef: TaskDef, parent: _PipelineScaffolding, datasetTypes: TaskDatasetTypes):
universe = parent.dimensions.universe
self.taskDef = taskDef
self.dimensions = DimensionGraph(universe, names=taskDef.connections.dimensions)
if not self.dimensions.issubset(parent.dimensions):
raise GraphBuilderError(f"Task with label '{taskDef.label}' has dimensions "
f"{self.dimensions} that are not a subset of "
f"the pipeline dimensions {parent.dimensions}.")
# Initialize _DatasetScaffoldingDicts as subsets of the one or two
# corresponding dicts in the parent _PipelineScaffolding.
self.initInputs = _DatasetScaffoldingDict.fromSubset(datasetTypes.initInputs,
parent.initInputs, parent.initIntermediates)
self.initOutputs = _DatasetScaffoldingDict.fromSubset(datasetTypes.initOutputs,
parent.initIntermediates, parent.initOutputs)
self.inputs = _DatasetScaffoldingDict.fromSubset(datasetTypes.inputs,
parent.inputs, parent.intermediates)
self.outputs = _DatasetScaffoldingDict.fromSubset(datasetTypes.outputs,
parent.intermediates, parent.outputs)
self.prerequisites = _DatasetScaffoldingDict.fromSubset(datasetTypes.prerequisites,
parent.prerequisites)
# Add backreferences to the _DatasetScaffolding objects that point to
# this Task.
for dataset in itertools.chain(self.initInputs.values(), self.inputs.values(),
self.prerequisites.values()):
dataset.consumers[self.taskDef.label] = self
for dataset in itertools.chain(self.initOutputs.values(), self.outputs.values()):
assert dataset.producer is None
dataset.producer = self
self.dataIds = set()
self.quanta = []
taskDef: TaskDef
"""Data structure that identifies the task class and its config
(`TaskDef`).
"""
dimensions: DimensionGraph
"""The dimensions of a single `Quantum` of this task (`DimensionGraph`).
"""
initInputs: _DatasetScaffoldingDict
"""Dictionary containing information about datasets used to construct this
task (`_DatasetScaffoldingDict`).
"""
initOutputs: _DatasetScaffoldingDict
"""Dictionary containing information about datasets produced as a
side-effect of constructing this task (`_DatasetScaffoldingDict`).
"""
inputs: _DatasetScaffoldingDict
"""Dictionary containing information about datasets used as regular,
graph-constraining inputs to this task (`_DatasetScaffoldingDict`).
"""
outputs: _DatasetScaffoldingDict
"""Dictionary containing information about datasets produced by this task
(`_DatasetScaffoldingDict`).
"""
prerequisites: _DatasetScaffoldingDict
"""Dictionary containing information about input datasets that must be
present in the repository before any Pipeline containing this task is run
(`_DatasetScaffoldingDict`).
"""
dataIds: Set[ExpandedDataCoordinate]
"""Data IDs for all quanta for this task in the graph (`set` of
`ExpandedDataCoordinate`).
Populated after construction by `_PipelineScaffolding.fillDataIds`.
"""
quanta: List[Quantum]
"""All quanta for this task in the graph (`list` of `Quantum`).
Populated after construction by `_PipelineScaffolding.fillQuanta`.
"""
def addQuantum(self, quantum: Quantum):
config = self.taskDef.config
connectionClass = config.connections.ConnectionsClass
connectionInstance = connectionClass(config=config)
# This will raise if one of the check conditions is not met, which is the intended
# behavior
result = connectionInstance.adjustQuantum(quantum.predictedInputs)
quantum._predictedInputs = NamedKeyDict(result)
# If this function has reached this far add the quantum
self.quanta.append(quantum)
def makeQuantumGraphTaskNodes(self) -> QuantumGraphTaskNodes:
"""Create a `QuantumGraphTaskNodes` instance from the information in
``self``.
Returns
-------
nodes : `QuantumGraphTaskNodes`
The `QuantumGraph` elements corresponding to this task.
"""
return QuantumGraphTaskNodes(
taskDef=self.taskDef,
quanta=self.quanta,
initInputs=self.initInputs.unpackRefs(),
initOutputs=self.initOutputs.unpackRefs(),
)
class _TaskScaffolding:
"""Helper class aggregating information about a `PipelineTask`, used when
constructing a `QuantumGraph`.
See `_PipelineScaffolding` for a top-down description of the full
scaffolding data structure.
Parameters
----------
taskDef : `TaskDef`
Data structure that identifies the task class and its config.
parent : `_PipelineScaffolding`
The parent data structure that will hold the instance being
constructed.
datasetTypes : `TaskDatasetTypes`
Data structure that categorizes the dataset types used by this task.
"""
def __init__(self, taskDef: TaskDef, parent: _PipelineScaffolding,
datasetTypes: TaskDatasetTypes):
universe = parent.dimensions.universe
self.taskDef = taskDef
self.dimensions = DimensionGraph(universe,
names=taskDef.connections.dimensions)
assert self.dimensions.issubset(parent.dimensions)
# Initialize _DatasetDicts as subsets of the one or two
# corresponding dicts in the parent _PipelineScaffolding.
self.initInputs = _DatasetDict.fromSubset(datasetTypes.initInputs,
parent.initInputs,
parent.initIntermediates)
self.initOutputs = _DatasetDict.fromSubset(datasetTypes.initOutputs,
parent.initIntermediates,
parent.initOutputs)
self.inputs = _DatasetDict.fromSubset(datasetTypes.inputs,
parent.inputs,
parent.intermediates)
self.outputs = _DatasetDict.fromSubset(datasetTypes.outputs,
parent.intermediates,
parent.outputs)
self.prerequisites = _DatasetDict.fromSubset(
datasetTypes.prerequisites, parent.prerequisites)
self.dataIds = set()
self.quanta = {}
def __repr__(self):
# Default dataclass-injected __repr__ gets caught in an infinite loop
# because of back-references.
return f"_TaskScaffolding(taskDef={self.taskDef}, ...)"
taskDef: TaskDef
"""Data structure that identifies the task class and its config
(`TaskDef`).
"""
dimensions: DimensionGraph
"""The dimensions of a single `Quantum` of this task (`DimensionGraph`).
"""
initInputs: _DatasetDict
"""Dictionary containing information about datasets used to construct this
task (`_DatasetDict`).
"""
initOutputs: _DatasetDict
"""Dictionary containing information about datasets produced as a
side-effect of constructing this task (`_DatasetDict`).
"""
inputs: _DatasetDict
"""Dictionary containing information about datasets used as regular,
graph-constraining inputs to this task (`_DatasetDict`).
"""
outputs: _DatasetDict
"""Dictionary containing information about datasets produced by this task
(`_DatasetDict`).
"""
prerequisites: _DatasetDict
"""Dictionary containing information about input datasets that must be
present in the repository before any Pipeline containing this task is run
(`_DatasetDict`).
"""
quanta: Dict[DataCoordinate, _QuantumScaffolding]
"""Dictionary mapping data ID to a scaffolding object for the Quantum of
this task with that data ID.
"""
def makeQuantumSet(self) -> Set[Quantum]:
"""Create a `set` of `Quantum` from the information in ``self``.
Returns
-------
nodes : `set` of `Quantum
The `Quantum` elements corresponding to this task.
"""
return set(q.makeQuantum() for q in self.quanta.values())
