1#!/usr/bin/env python 2# 3# Copyright (C) 2018 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16# 17 18 19class Logger(object): 20 """A class to log messages to a list of strings. 21 22 Attributes: 23 log_message: a list of strings, containing the log messages. 24 log_indent: integer, representing the index level 25 """ 26 27 def __init__(self): 28 self.log_message = [] 29 self.log_indent = 0 30 31 def Clear(self): 32 """Clears the log buffer.""" 33 self.log_message = [] 34 self.log_indent = 0 35 36 def Get(self): 37 """Retruns a list of all log message strings.""" 38 return self.log_message 39 40 def Println(self, msg): 41 """Stores a new string `msg` to the log buffer.""" 42 indent = " " * self.log_indent 43 if msg and type(msg) is not str: 44 msg = str(msg) 45 self.log_message.append(indent + msg) 46 47 def Indent(self): 48 """Increase indent of log message.""" 49 self.log_indent += 1 50 51 def Unindent(self): 52 """Decrease indent of log message.""" 53 if self.log_indent > 0: 54 self.log_indent -= 1 55