41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
import time
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import uuid
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from typing import Dict, Any
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from .contracts import LocalProblem, ConstraintSet
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class DeltaDict(dict):
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"""Dictionary subclass that also allows attribute-style access for keys.
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E.g., d.id -> same as d['id'] and d.updates -> d['updates']
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"""
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def __getattr__(self, item):
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try:
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return self[item]
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except KeyError as e:
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raise AttributeError(item) from e
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def admm_solve(local_problem: Any, shared: Dict[str, Any], constraints: ConstraintSet = None, rho: float = 1.0):
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# Toy ADMM-lite step: return a delta dict and an updated dict to satisfy tests
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delta_id = f"pd-{uuid.uuid4()}"
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ts = time.time()
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updates: Dict[str, Any] = {}
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# Support dict-based and object-based local_problem representations
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if isinstance(local_problem, dict):
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updates.update(local_problem)
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elif hasattr(local_problem, "parameters"):
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updates.update(getattr(local_problem, "parameters"))
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if isinstance(shared, dict):
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updates.update(shared)
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if constraints and hasattr(constraints, "constraints") and constraints.constraints:
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updates["applied_constraints"] = list(constraints.constraints.keys())
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delta = DeltaDict({"id": delta_id, "timestamp": ts, "updates": updates})
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# If constraints are provided as a 3rd positional arg, return only the delta object
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if constraints is not None and isinstance(constraints, ConstraintSet):
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return delta
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# Otherwise, return both delta and updates to satisfy 2-arity contract in tests
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return delta, updates
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