437 lines
14 KiB
Python
437 lines
14 KiB
Python
import logging
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import time
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from core.builtin_concepts import BuiltinConcepts, ParserResultConcept
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from core.concept import Concept
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from core.sheerka.services.SheerkaExecute import NO_MATCH
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from core.sheerka.services.SheerkaMemory import SheerkaMemory
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from core.sheerka_logger import get_logger
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from sdp.sheerkaDataProvider import Event
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DEBUG_TAB_SIZE = 4
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PROPERTIES_TO_SERIALIZE = ("_id",
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"_bag",
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"_children",
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"_start",
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"_stop",
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"who",
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"action",
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"action_context",
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"desc",
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"inputs",
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"values",
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"obj",
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"concepts")
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class ExecutionContext:
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"""
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To keep track of the execution of a request
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"""
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ids = {}
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@staticmethod
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def get_id(event_digest):
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if event_digest in ExecutionContext.ids:
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ExecutionContext.ids[event_digest] += 1
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else:
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ExecutionContext.ids[event_digest] = 0
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return ExecutionContext.ids[event_digest]
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def __init__(self,
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who,
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event: Event,
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sheerka,
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action: BuiltinConcepts,
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action_context,
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desc: str = None,
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logger=None,
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global_hints=None,
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errors=None,
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**kwargs):
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self._id = ExecutionContext.get_id(event.get_digest()) if event else None
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self._parent = None
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self._children = []
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self._tab = ""
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self._bag = {} # context variables
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self._start = 0 # when the execution starts (to measure elapsed time)
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self._stop = 0 # when the execution stops (to measure elapses time)
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self._logger = logger
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self._format_instructions = None # how to print the execution context
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self._stat_log = get_logger("stats")
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self._show_stats = False
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self.who = who # who is asking
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self.event = event # what was the (original) trigger
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self.sheerka = sheerka # sheerka
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self.action = action
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self.action_context = action_context
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self.desc = desc # human description of what is going on
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self.preprocess = None
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self.stm = False # True if the context has short term memory entries
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self.private_hints = set()
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self.protected_hints = set()
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self.global_hints = set() if global_hints is None else global_hints
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self.errors = [] if errors is None else errors # error are global
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self.inputs = {} # what were the parameters of the execution context
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self.values = {} # what was produced by the execution context
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self.obj = kwargs.pop("obj", None) # current obj we are working on
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self.concepts = kwargs.pop("concepts", {}) # known concepts specific to this context
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# update the other elements
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for k, v in kwargs.items():
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self._bag[k] = v
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@property
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def elapsed(self):
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if self._start == 0:
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return 0
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return (self._stop if self._stop > 0 else time.time_ns()) - self._start
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@property
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def elapsed_str(self):
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nano_sec = self.elapsed
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dt = nano_sec / 1e6
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return f"{dt} ms" if dt < 1000 else f"{dt / 1000} s"
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@property
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def logger(self):
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return self._logger
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@property
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def id(self):
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return self._id
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@property
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def achildren(self):
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"""
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I prefixed with an 'a' to make it appear on the top when debugging
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:return:
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"""
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return self._children
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def __getattr__(self, item):
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if item in self._bag:
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return self._bag[item]
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raise AttributeError(f"'ExecutionContext' object has no attribute '{item}'")
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def __enter__(self):
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self._start = time.time_ns()
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self.log_new()
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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if self.stm:
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self.sheerka.services[SheerkaMemory.NAME].remove_context(self)
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self._stop = time.time_ns()
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if self._show_stats:
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self._stat_log.debug(f"[{self._id:2}]" + self._tab + "Execution time: " + self.elapsed_str)
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def __repr__(self):
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msg = f"ExecutionContext(who={self.who}, id={self._id}, action={self.action}, context={self.action_context}"
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if self.desc:
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msg += f", desc='{self.desc}'"
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msg += ")"
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return msg
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# def __str__(self):
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# msg = self.desc or "New Context"
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# msg += f", who={self.who}, id={self.id}"
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# return msg
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def __eq__(self, other):
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if id(self) == id(other):
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return True
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if not isinstance(other, ExecutionContext):
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return False
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for prop in PROPERTIES_TO_SERIALIZE:
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if prop in ("who", "action", "action_context"):
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value = str(getattr(self, prop))
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other_value = str(getattr(other, prop))
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else:
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value = getattr(self, prop)
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other_value = getattr(other, prop)
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if value != other_value:
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return False
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return True
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def push(self, action: BuiltinConcepts, action_context, who=None, desc=None, logger=None, **kwargs):
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who = who or self.who
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logger = logger or self._logger
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_kwargs = {"obj": self.obj, "concepts": self.concepts}
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_kwargs.update(self._bag)
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_kwargs.update(kwargs)
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new = ExecutionContext(
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who,
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self.event,
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self.sheerka,
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action,
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action_context,
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desc,
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logger,
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self.global_hints,
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self.errors,
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**_kwargs)
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new._parent = self
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new._tab = self._tab + " " * DEBUG_TAB_SIZE
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new.preprocess = self.preprocess
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new.protected_hints.update(self.protected_hints)
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self._children.append(new)
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return new
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def add_preprocess(self, name, **kwargs):
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preprocess = self.sheerka.new(BuiltinConcepts.EVALUATOR_PRE_PROCESS)
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preprocess.set_value("name", name)
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for k, v in kwargs.items():
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preprocess.set_value(k, v)
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if not self.preprocess:
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self.preprocess = []
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self.preprocess.append(preprocess)
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return self
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def add_inputs(self, **kwargs):
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for k, v in kwargs.items():
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self.inputs[k] = v
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return self
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def add_values(self, **kwargs):
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for k, v in kwargs.items():
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self.values[k] = v
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return self
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def add_to_short_term_memory(self, key, concept):
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"""
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Add a concept to the short term memory (relative to the current execution context)
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:param key:
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:param concept:
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:return:
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"""
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self.sheerka.add_to_short_term_memory(self, key, concept)
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def get_from_short_term_memory(self, key):
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"""
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:param key:
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:return:
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"""
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return self.sheerka.get_from_short_term_memory(self, key)
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def get_concept(self, key):
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# search in obj
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if isinstance(self.obj, Concept):
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if self.obj.key == key:
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return self.obj
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for var_name in self.obj.values:
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if var_name == key:
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value = self.obj.get_value(var_name)
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if isinstance(value, Concept):
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return value
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# search in concepts
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if self.concepts:
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for k, c in self.concepts.items():
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if k == key:
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return c
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return self.sheerka.get_by_key(key)
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def new_concept(self, key, **kwargs):
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# search in obj
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if self.obj:
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if self.obj.key == key:
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return self.sheerka.new_from_template(self.obj, key, **kwargs)
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for var_name in self.obj.values:
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if var_name == key:
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value = self.obj.get_value(var_name)
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if isinstance(value, Concept):
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return self.sheerka.new_from_template(value, key, **kwargs)
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else:
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return value
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if self.concepts:
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for k, c in self.concepts.items():
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if k == key:
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return self.sheerka.new_from_template(c, key, **kwargs)
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return self.sheerka.new(key, **kwargs)
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def log_new(self):
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if self._logger and not self._logger.disabled:
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self._logger.debug(f"[{self._id:2}]" + self._tab + str(self))
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self._show_stats = True
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def log(self, message, who=None):
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if self._logger and not self._logger.disabled:
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self._logger.debug(f"[{self._id:2}]" + self._tab + (f"[{who}] " if who else "") + str(message))
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def log_error(self, message, who=None, exc=None):
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self.errors.append(exc or message)
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if self._logger and not self._logger.disabled:
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self._logger.exception(f"[{self._id:2}]" + self._tab + (f"[{who}] " if who else "") + str(message))
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def log_result(self, return_values):
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if not self._logger or not self._logger.isEnabledFor(logging.DEBUG):
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return
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if len(return_values) == 0:
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self._logger.debug(self._tab + "No return value")
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for r in return_values:
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to_str = self.return_value_to_str(r)
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self._logger.debug(f"[{self._id:2}]" + self._tab + "-> " + to_str)
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def get_parent(self):
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return self._parent
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def in_context(self, concept_key):
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return concept_key in self.protected_hints or \
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concept_key in self.global_hints or \
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concept_key in self.private_hints
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def in_current_context(self, concept_key):
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return concept_key in self.protected_hints or concept_key in self.private_hints
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def in_private_context(self, concept_key):
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return concept_key in self.private_hints
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def add_to_private_hints (self, concept_key):
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self.private_hints.add(concept_key)
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def add_to_protected_hints(self, concept_key):
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self.protected_hints.add(concept_key)
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def add_to_global_hints(self, concept_key):
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self.global_hints.add(concept_key)
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@staticmethod
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def _is_return_value(obj):
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return isinstance(obj, Concept) and obj.key == str(BuiltinConcepts.RETURN_VALUE)
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def _at_least_one_success(self, return_values):
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status = False
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for ret_val in return_values:
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if not self._is_return_value(ret_val):
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return None
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status |= ret_val.status
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return status
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def _all_success(self, return_values):
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status = True
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for ret_val in return_values:
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if not self._is_return_value(ret_val):
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return None
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status &= ret_val.status
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return status
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def get_status(self):
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# In the function, I cannot use sheerka.isinstance() as self.sheerka may not be initialized
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# This is the case when ExecutionContext is deserialized
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if "return_values" not in self.values:
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return None
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if hasattr(self.values["return_values"], "__iter__"):
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values = self.values["return_values"]
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if len(values) == 0:
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return None
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if isinstance(values, str):
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return "No Match" if values == NO_MATCH else values
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if isinstance(values[0], dict):
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for result in values:
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if "return_value" not in result:
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return None
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if self._is_return_value(result["return_value"]):
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return result["return_value"].status
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return "No Match"
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else:
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return self._at_least_one_success(self.values["return_values"])
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else:
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ret_val = self.values["return_values"]
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if not isinstance(ret_val, Concept) or not ret_val.key == str(BuiltinConcepts.RETURN_VALUE):
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return None
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if ret_val.status:
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return True
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if isinstance(ret_val.body, ParserResultConcept):
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return "Almost"
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return False
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def as_bag(self):
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"""
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Creates a dictionary with the useful properties of the concept
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It quicker to implement than creating the actual property mechanism with @property
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And it removes the visibility from the other attributes/methods
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"""
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bag = {}
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for k, v in self._bag.items():
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bag[k] = v
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bag["bag." + k] = v
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for prop in ("id", "who", "action", "desc", "obj", "inputs", "values", "concepts"):
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bag[prop] = getattr(self, prop)
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bag["context"] = self.action_context
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for prop in ("desc", "obj", "inputs", "values", "concepts"):
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bag[prop] = getattr(self, prop)
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bag["status"] = self.get_status()
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bag["elapsed"] = self.elapsed
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bag["elapsed_str"] = self.elapsed_str
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bag["digest"] = self.event.get_digest() if self.event else None
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return bag
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@staticmethod
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def return_value_to_str(r):
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value = str(r.value)
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if len(value) > 50:
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value = value[:47] + "..."
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to_str = f"ReturnValue(who={r.who}, status={r.status}, value={value})"
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return to_str
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def get_format_instructions(self):
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return self._format_instructions
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def set_format_instructions(self, instructions):
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self._format_instructions = instructions
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def get_parents(self, predicate=None):
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"""
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Gets all the parents that match the given predicate
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:param predicate:
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:return:
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"""
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return list(self.search(predicate, None, False))
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def search(self, predicate=None, get_obj=None, start_with_self=False, stop=None):
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"""
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Iter thru execution context parent and return the list of obj
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:param predicate: what execution context to keep
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:param get_obj: lambda to compute what to return
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:param start_with_self: include the current execution context in the search
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:param stop: condition to stop
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:return:
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"""
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current = self if start_with_self else self._parent
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while current:
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if predicate is None or predicate(current):
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yield current if get_obj is None else get_obj(current)
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if stop and stop(current):
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break
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current = current._parent
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