Spaces:
Running
Running
""" | |
Tracing utils | |
""" | |
class TagTracer: | |
def __init__(self): | |
self._tags2proc = {} | |
self._writer = None | |
self.indent = 0 | |
def get(self, name): | |
return TagTracerSub(self, (name,)) | |
def _format_message(self, tags, args): | |
if isinstance(args[-1], dict): | |
extra = args[-1] | |
args = args[:-1] | |
else: | |
extra = {} | |
content = " ".join(map(str, args)) | |
indent = " " * self.indent | |
lines = ["{}{} [{}]\n".format(indent, content, ":".join(tags))] | |
for name, value in extra.items(): | |
lines.append(f"{indent} {name}: {value}\n") | |
return "".join(lines) | |
def _processmessage(self, tags, args): | |
if self._writer is not None and args: | |
self._writer(self._format_message(tags, args)) | |
try: | |
processor = self._tags2proc[tags] | |
except KeyError: | |
pass | |
else: | |
processor(tags, args) | |
def setwriter(self, writer): | |
self._writer = writer | |
def setprocessor(self, tags, processor): | |
if isinstance(tags, str): | |
tags = tuple(tags.split(":")) | |
else: | |
assert isinstance(tags, tuple) | |
self._tags2proc[tags] = processor | |
class TagTracerSub: | |
def __init__(self, root, tags): | |
self.root = root | |
self.tags = tags | |
def __call__(self, *args): | |
self.root._processmessage(self.tags, args) | |
def get(self, name): | |
return self.__class__(self.root, self.tags + (name,)) | |