Source code for hveto.segments
# -*- coding: utf-8 -*-
# Copyright (C) Joshua Smith (2016-)
#
# This file is part of the hveto python package.
#
# hveto is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# hveto 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with hveto. If not, see <http://www.gnu.org/licenses/>.
"""Segment utilities for hveto
"""
from __future__ import print_function
import os
import os.path
from functools import wraps
try:
from urllib.parse import urlparse
from urllib.request import urlopen
except ImportError: # python < 3
from urlparse import urlparse
from urllib2 import urlopen
from gwpy.segments import (DataQualityFlag, DataQualityDict)
__author__ = 'Duncan Macleod <duncan.macleod@ligo.org>'
__credits__ = 'Joshua Smith <joshua.smith@ligo.org>'
DEFAULT_SEGMENT_SERVER = os.getenv('DEFAULT_SEGMENT_SERVER',
'https://segments.ligo.org')
[docs]def integer_segments(f):
@wraps(f)
def decorated_method(*args, **kwargs):
flag = f(*args, **kwargs)
segs = flag.active
flag.active = type(segs)(type(s)(int(s[0]), int(s[1])) for s in segs)
return flag
return decorated_method
[docs]@integer_segments
def query(flag, start, end, url=DEFAULT_SEGMENT_SERVER):
"""Query a segment database for active segments associated with a flag
"""
return DataQualityFlag.query(flag, start, end, url=url)
[docs]def write_ascii(outfile, segmentlist, ncol=4):
if ncol not in [2, 4]:
raise ValueError("Invalid number of columns: %r" % ncol)
with open(outfile, 'w') as f:
for i, seg in enumerate(segmentlist):
if ncol == 2:
print("%f %f" % seg, file=f)
else:
print("%d\t%f\t%f\t%f" % (i, seg[0], seg[1], abs(seg)), file=f)
[docs]def read_veto_definer_file(vetofile, start=None, end=None, ifo=None):
"""Read a veto definer file, downloading it if necessary
"""
if urlparse(vetofile).netloc:
tmp = urlopen(vetofile)
vetofile = os.path.abspath(os.path.basename(vetofile))
with open(vetofile, 'w') as f:
f.write(str(tmp.read()))
return DataQualityDict.from_veto_definer_file(
vetofile, format='ligolw', start=start, end=end, ifo=ifo)