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bec_widgets/bec_widgets/utils/entry_validator.py

59 lines
2.0 KiB
Python

class EntryValidator:
def __init__(self, devices):
self.devices = devices
def validate_signal(self, name: str, entry: str = None) -> str:
"""
Validate a signal entry for a given device. If the entry is not provided, the first signal entry will be used from the device hints.
Args:
name(str): Device name
entry(str): Signal entry
Returns:
str: Signal entry
"""
if name not in self.devices:
raise ValueError(f"Device '{name}' not found in current BEC session")
device = self.devices[name]
# Build list of available signal entries from device._info['signals']
signals_dict = getattr(device, "_info", {}).get("signals", {})
available_entries = [
sig.get("obj_name") for sig in signals_dict.values() if sig.get("obj_name")
]
# If no signals are found, means device is a signal, use the device name as the entry
if not available_entries:
available_entries = [name]
# edge case for if name is passed instead of full_name, should not happen
if entry in signals_dict:
entry = signals_dict[entry].get("obj_name", entry)
if entry is None or entry == "":
entry = next(iter(device._hints), name) if hasattr(device, "_hints") else name
if entry not in available_entries:
raise ValueError(
f"Entry '{entry}' not found in device '{name}' signals. "
f"Available signals: '{available_entries}'"
)
return entry
def validate_monitor(self, monitor: str) -> str:
"""
Validate a monitor entry for a given device.
Args:
monitor(str): Monitor entry
Returns:
str: Monitor entry
"""
if monitor not in self.devices:
raise ValueError(f"Device '{monitor}' not found in current BEC session")
return monitor