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from typing import Dict, Optional, Set
from pydantic import BaseModel
INTERVAL_CONVERSIONS = {
"legacy": {
"second": "S",
"minute": "M",
"hour": "H",
"day": "D",
},
"miniseed": {
"tenhertz": "B",
"second": "L",
"minute": "U",
"hour": "R",
"day": "P",
},
}
ELEMENT_CONVERSIONS = {
# e-field
"E-E": "QE",
"E-N": "QN",
# derived indicies
"Dst3": "X3",
"Dst4": "X4",
"SQ": "SQ",
"SV": "SV",
"DIST": "DT",
"DST": "GD",
}
CHANNEL_CONVERSIONS = {
ELEMENT_CONVERSIONS[key]: key for key in ELEMENT_CONVERSIONS.keys()
}
class SNCL(BaseModel):
station: str
network: str = "NT"
channel: str
location: str
data_format: str = "miniseed"
def parse_sncl(self) -> Dict:
return {
"station": self.station,
"network": self.network,
"data_type": self.data_type,
"element": self.element,
"interval": self.interval,
}
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def dict(self, exclude: Set = {"data_format"}) -> dict:
return super().dict(
exclude=exclude,
)
def json(self, exclude: Set = {"data_format"}) -> str:
return super().json(
exclude=exclude,
)
@property
def data_type(self) -> str:
location_start = self.location[0]
if location_start == "R":
return "variation"
elif location_start == "A":
return "adjusted"
elif location_start == "Q":
return "quasi-definitive"
elif location_start == "D":
return "definitive"
raise ValueError(f"Unexpected location start: {location_start}")
@property
def element(self) -> str:
element = self.__get_predefined_element()
element = element or self.__get_element()
return element
@property
def interval(self) -> str:
interval_conversions = INTERVAL_CONVERSIONS[self.data_format]
interval_code_conversions = {
interval_conversions[key]: key for key in interval_conversions.keys()
}
channel_start = self.channel[0]
try:
return interval_code_conversions[channel_start]
except:
raise ValueError(f"Unexcepted interval code: {channel_start}")
def __get_element(self):
element_start = self.channel[2]
channel = self.channel
channel_middle = channel[1]
location_end = self.location[1]
if channel_middle in ["Q", "E"]:
element_end = "_Volt"
elif channel_middle == "Y":
element_end = "_Bin"
elif channel_middle == "K":
element_end = "_Temp"
elif location_end == "1":
element_end = "_Sat"
elif location_end == "D":
element_end = "_Dist"
elif location_end == "Q":
element_end = "_SQ"
elif location_end == "V":
element_end = "_SV"
else:
element_end = ""
return element_start + element_end
def __get_predefined_element(self) -> Optional[str]:
channel = self.channel
channel_end = channel[1:]
if channel_end in CHANNEL_CONVERSIONS:
return CHANNEL_CONVERSIONS[channel_end]
return None