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mirror of synced 2024-11-14 18:07:36 +01:00
bemaniutils/bemani/common/validateddict.py
2019-12-08 21:43:49 +00:00

440 lines
13 KiB
Python

from typing import Optional, List, Dict, Any
def intish(val: Any, base: int=10) -> Optional[int]:
if val is None:
return None
try:
return int(val, base)
except ValueError:
return None
class ValidatedDict(dict):
"""
Helper class which gives a Dict object superpowers. Allows stores and loads to be
validated so you only ever update when given good data, and only ever return
non-default values when data is good. Used primarily for storing data pulled
directly from game responses, or reading data to echo to a game.
All of the get functions will verify that the attribute exists and is the right
type. If it is not, the default value is returned.
all of the set functions will verify that the to-be-stored value matches the
type. If it does not, the value is not updated.
"""
def get_int(self, name: str, default: int=0) -> int:
"""
Given the name of a value, return an integer stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't an integer.
Returns:
An integer.
"""
val = self.get(name)
if val is None:
return default
if type(val) != int:
return default
return val
def get_float(self, name: str, default: float=0.0) -> float:
"""
Given the name of a value, return a float stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't a float.
Returns:
A float.
"""
val = self.get(name)
if val is None:
return default
if type(val) != float:
return default
return val
def get_bool(self, name: str, default: bool=False) -> bool:
"""
Given the name of a value, return a boolean stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't a boolean.
Returns:
A boolean.
"""
val = self.get(name)
if val is None:
return default
if type(val) != bool:
return default
return val
def get_str(self, name: str, default: str='') -> str:
"""
Given the name of a value, return string stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't a string.
Returns:
A string.
"""
val = self.get(name)
if val is None:
return default
if type(val) != str:
return default
return val
def get_bytes(self, name: str, default: bytes=b'') -> bytes:
"""
Given the name of a value, return bytes stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't bytes.
Returns:
A bytestring.
"""
val = self.get(name)
if val is None:
return default
if type(val) != bytes:
return default
return val
def get_int_array(self, name: str, length: int, default: Optional[List[int]]=None) -> List[int]:
"""
Given the name of a value, return a list of integers stored under that name.
Parameters:
name - Name of attribute
length - The expected length of the array
default - The default to return if the value doesn't exist, or isn't a list of integers
of the right length.
Returns:
A list of integers.
"""
if default is None:
default = [0] * length
if len(default) != length:
raise Exception('Gave default of wrong length!')
val = self.get(name)
if val is None:
return default
if type(val) != list:
return default
if len(val) != length:
return default
for v in val:
if type(v) != int:
return default
return val
def get_bool_array(self, name: str, length: int, default: Optional[List[bool]]=None) -> List[bool]:
"""
Given the name of a value, return a list of booleans stored under that name.
Parameters:
name - Name of attribute
length - The expected length of the array
default - The default to return if the value doesn't exist, or isn't a list of booleans
of the right length.
Returns:
A list of booleans.
"""
if default is None:
default = [False] * length
if len(default) != length:
raise Exception('Gave default of wrong length!')
val = self.get(name)
if val is None:
return default
if type(val) != list:
return default
if len(val) != length:
return default
for v in val:
if type(v) != bool:
return default
return val
def get_bytes_array(self, name: str, length: int, default: Optional[List[bytes]]=None) -> List[bytes]:
"""
Given the name of a value, return a list of bytestrings stored under that name.
Parameters:
name - Name of attribute
length - The expected length of the array
default - The default to return if the value doesn't exist, or isn't a list of bytestrings
of the right length.
Returns:
A list of bytestrings.
"""
if default is None:
default = [b''] * length
if len(default) != length:
raise Exception('Gave default of wrong length!')
val = self.get(name)
if val is None:
return default
if type(val) != list:
return default
if len(val) != length:
return default
for v in val:
if type(v) != bytes:
return default
return val
def get_str_array(self, name: str, length: int, default: Optional[List[str]]=None) -> List[str]:
"""
Given the name of a value, return a list of strings stored under that name.
Parameters:
name - Name of attribute
length - The expected length of the array
default - The default to return if the value doesn't exist, or isn't a list of strings
of the right length.
Returns:
A list of strings.
"""
if default is None:
default = [''] * length
if len(default) != length:
raise Exception('Gave default of wrong length!')
val = self.get(name)
if val is None:
return default
if type(val) != list:
return default
if len(val) != length:
return default
for v in val:
if type(v) != str:
return default
return val
def get_dict(self, name: str, default: Optional[Dict[Any, Any]]=None) -> 'ValidatedDict':
"""
Given the name of a value, return a dictionary stored under that name.
Parameters:
name - Name of attribute
default - The default to return if the value doesn't exist, or isn't a dictionary.
Returns:
A dictionary, wrapped with this helper class so the same helper methods may be called.
"""
if default is None:
default = {}
validateddefault = ValidatedDict(default)
val = self.get(name)
if val is None:
return validateddefault
if not isinstance(val, dict):
return validateddefault
return ValidatedDict(val)
def replace_int(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually an integer.
"""
if val is None:
return
if type(val) != int:
return
self[name] = val
def replace_float(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually a float
"""
if val is None:
return
if type(val) != float:
return
self[name] = val
def replace_bool(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually a boolean.
"""
if val is None:
return
if type(val) != bool:
return
self[name] = val
def replace_str(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually a string.
"""
if val is None:
return
if type(val) != str:
return
self[name] = val
def replace_bytes(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually a bytestring.
"""
if val is None:
return
if type(val) != bytes:
return
self[name] = val
def replace_int_array(self, name: str, length: int, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
length - Expected length of the list
val - The value to store, if it is actually a list of integers containing length elements.
"""
if val is None:
return
if type(val) != list:
return
if len(val) != length:
return
for v in val:
if type(v) != int:
return
self[name] = val
def replace_bool_array(self, name: str, length: int, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
length - Expected length of the list
val - The value to store, if it is actually a list of booleans containing length elements.
"""
if val is None:
return
if type(val) != list:
return
if len(val) != length:
return
for v in val:
if type(v) != bool:
return
self[name] = val
def replace_bytes_array(self, name: str, length: int, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
length - Expected length of the list
val - The value to store, if it is actually a list of bytestrings containing length elements.
"""
if val is None:
return
if type(val) != list:
return
if len(val) != length:
return
for v in val:
if type(v) != bytes:
return
self[name] = val
def replace_str_array(self, name: str, length: int, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
length - Expected length of the list
val - The value to store, if it is actually a list of strings containing length elements.
"""
if val is None:
return
if type(val) != list:
return
if len(val) != length:
return
for v in val:
if type(v) != str:
return
self[name] = val
def replace_dict(self, name: str, val: Any) -> None:
"""
Given the name of a value and a new value to store, update that value.
Parameters:
name - Name of attribute
val - The value to store, if it is actually a dictionary.
"""
if val is None:
return
if not isinstance(val, dict):
return
self[name] = val
def increment_int(self, name: str) -> None:
"""
Given the name of a value, increment the value by 1.
If the value doesn't exist or isn't an integer, converts it to an integer
and sets it to 1 (as if it was 0 before). If it is an integer, increments
it by 1.
Parameters:
name - Name of attribute
"""
if name not in self:
self[name] = 1
elif type(self[name]) != int:
self[name] = 1
else:
self[name] = self[name] + 1