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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""CSV interface class."""
# Import sys libs
import csv
import sys
# Import Glances lib
from glances.core.glances_globals import is_py3
from glances.core.glances_logging import logger
from glances.exports.glances_export import GlancesExport
class Export(GlancesExport):
"""This class manages the CSV export module."""
def __init__(self, config=None, args=None):
"""Init the CSV export IF."""
GlancesExport.__init__(self, config=config, args=args)
# CSV file name
self.csv_filename = args.export_csv
# Set the CSV output file
try:
if is_py3:
self.csv_file = open(self.csv_filename, 'w', newline='')
else:
self.csv_file = open(self.csv_filename, 'wb')
self.writer = csv.writer(self.csv_file)
except IOError as e:
logger.critical("Cannot create the CSV file: {0}".format(e))
sys.exit(2)
logger.info("Stats exported to CSV file: {0}".format(self.csv_filename))
self.export_enable = True
self.first_line = True
def exit(self):
"""Close the CSV file."""
logger.debug("Finalise export interface %s" % self.export_name)
self.csv_file.close()
def update(self, stats):
"""Update stats in the CSV output file."""
csv_header = []
csv_data = []
# Get the stats
all_stats = stats.getAll()
plugins = stats.getAllPlugins()
# Loop over available plugin
i = 0
for plugin in plugins:
if plugin in self.plugins_to_export():
if type(all_stats[i]) is list:
for item in all_stats[i]:
# First line: header
if self.first_line:
fieldnames = item.keys()
csv_header += map(lambda x: plugin+'_'+item[item['key']]+'_'+x, item)
# Others lines: stats
fieldvalues = item.values()
csv_data += fieldvalues
elif type(all_stats[i]) is dict:
# First line: header
if self.first_line:
fieldnames = all_stats[i].keys()
csv_header += map(lambda x: plugin+'_'+x, fieldnames)
# Others lines: stats
fieldvalues = all_stats[i].values()
csv_data += fieldvalues
i += 1
# Export to CSV
if self.first_line:
self.writer.writerow(csv_header)
self.first_line = False
self.writer.writerow(csv_data)
self.csv_file.flush()
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