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#!/usr/bin/env python3
from __future__ import annotations
class LockOpTrace:
"""
LockOpTrace: Represents a Lock Operation trace in the log file.
It holds the lines for the trace and allows matching against a part of
the trace.
"""
def __init__(self, lines: list[str]):
self.lines = lines
self.hash = hash(str(self))
def get_trace_lines(self) -> list[str]:
return self.lines
def match(self, part: str) -> bool:
for line in self.lines:
if part in line:
return True
return False
def print(self):
print("-" * 20 + "TRACE" + "-" * 20)
print("")
print(self)
print("")
def __str__(self) -> str:
return "".join(self.lines).rstrip()
def __hash__(self) -> int:
return self.hash
def __eq__(self, other: object) -> bool:
if not isinstance(other, LockOpTrace):
# don't attempt to compare against unrelated types
return NotImplemented
return self.hash == other.hash
"""
Generic function used to iterate a list of strings until it is found an
element which starts with the prefix passed as parameter. The function
returns the index for the first match, and -1 in case there isn't any.
"""
def get_next_match(lines: list[str], start: int, prefix: str) -> int:
for current_line in range(start + 1, len(lines)):
if lines[current_line].startswith(prefix):
return current_line
return -1
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