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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""StdoutCsv interface class."""
import time
from glances.compat import printandflush
class GlancesStdoutCsv(object):
"""This class manages the StdoutCsv display."""
separator = ','
na = 'N/A'
def __init__(self, config=None, args=None):
# Init
self.config = config
self.args = args
# Display the header only on the first line
self.header = True
# Build the list of plugin and/or plugin.attribute to display
self.plugins_list = self.build_list()
def build_list(self):
"""Return a list of tuples taken from self.args.stdout
:return: A list of tuples. Example -[(plugin, attribute), ... ]
"""
ret = []
for p in self.args.stdout_csv.split(','):
if '.' in p:
p, a = p.split('.')
else:
a = None
ret.append((p, a))
return ret
def end(self):
pass
def build_header(self, plugin, attribute, stat):
"""Build and return the header line"""
line = ''
if attribute is not None:
line += '{}.{}{}'.format(plugin, attribute, self.separator)
else:
if isinstance(stat, dict):
for k in stat.keys():
line += '{}.{}{}'.format(plugin, str(k), self.separator)
elif isinstance(stat, list):
for i in stat:
if isinstance(i, dict) and 'key' in i:
for k in i.keys():
line += '{}.{}.{}{}'.format(plugin, str(i[i['key']]), str(k), self.separator)
else:
line += '{}{}'.format(plugin, self.separator)
return line
def build_data(self, plugin, attribute, stat):
"""Build and return the data line"""
line = ''
if attribute is not None:
line += '{}{}'.format(str(stat.get(attribute, self.na)), self.separator)
else:
if isinstance(stat, dict):
for v in stat.values():
line += '{}{}'.format(str(v), self.separator)
elif isinstance(stat, list):
for i in stat:
if isinstance(i, dict) and 'key' in i:
for v in i.values():
line += '{}{}'.format(str(v), self.separator)
else:
line += '{}{}'.format(str(stat), self.separator)
return line
def update(self, stats, duration=3):
"""Display stats to stdout.
Refresh every duration second.
"""
# Build the stats list
line = ''
for plugin, attribute in self.plugins_list:
# Check if the plugin exist and is enable
if plugin in stats.getPluginsList() and stats.get_plugin(plugin).is_enabled():
stat = stats.get_plugin(plugin).get_export()
else:
continue
# Build the line to display (header or data)
if self.header:
line += self.build_header(plugin, attribute, stat)
else:
line += self.build_data(plugin, attribute, stat)
# Display the line (without the last 'separator')
printandflush(line[:-1])
# Display header one time
self.header = False
# Wait until next refresh
if duration > 0:
time.sleep(duration)