Coverage for /usr/local/lib/python3.7/dist-packages/pyrocko/io/rdseed.py : 20%

# http://pyrocko.org - GPLv3 

# 

# The Pyrocko Developers, 21st Century 

# ---|P------/S----------~Lg---------- 

from __future__ import absolute_import 

import os 

import sys 

import subprocess 

import tempfile 

import calendar 

import time 

import re 

import logging 

import shutil 

from pyrocko import ExternalProgramMissing 

from pyrocko import trace, pile, model, util 

from pyrocko.io import eventdata 

pjoin = os.path.join 

logger = logging.getLogger('pyrocko.io.rdseed') 

def cmp(a, b): 

return (a > b) - (a < b) 

def read_station_header_file(fn): 

def m(i, *args): 

if len(ltoks) >= i + len(args) \ 

and (tuple(ltoks[i:i+len(args)]) == args): 

return True 

return False 

def f(i): 

return float(toks[i]) 

def s(i): 

if len(toks) > i: 

return toks[i] 

else: 

return '' 

with open(fn, 'r') as fi: 

stations = [] 

atsec, station, channel = None, None, None 

for line in fi: 

toks = line.split() 

ltoks = line.lower().split() 

if m(2, 'station', 'header'): 

atsec = 'station' 

station = {'channels': []} 

stations.append(station) 

continue 

if m(2, 'station') and m(5, 'channel'): 

atsec = 'channel' 

channel = {} 

station['channels'].append(channel) 

continue 

if atsec == 'station': 

if m(1, 'station', 'code:'): 

station['station'] = s(3) 

elif m(1, 'network', 'code:'): 

station['network'] = s(3) 

elif m(1, 'name:'): 

station['name'] = ' '.join(toks[2:]) 

if atsec == 'channel': 

if m(1, 'channel:'): 

channel['channel'] = s(2) 

elif m(1, 'location:'): 

channel['location'] = s(2) 

elif m(1, 'latitude:'): 

station['lat'] = f(2) 

elif m(1, 'longitude:'): 

station['lon'] = f(2) 

elif m(1, 'elevation:'): 

station['elevation'] = f(2) 

elif m(1, 'local', 'depth:'): 

channel['depth'] = f(3) 

elif m(1, 'azimuth:'): 

channel['azimuth'] = f(2) 

elif m(1, 'dip:'): 

channel['dip'] = f(2) 

nsl_stations = {} 

for station in stations: 

for channel in station['channels']: 

def cs(k, default=None): 

return channel.get(k, station.get(k, default)) 

nsl = station['network'], station['station'], channel['location'] 

if nsl not in nsl_stations: 

nsl_stations[nsl] = model.Station( 

network=station['network'], 

station=station['station'], 

location=channel['location'], 

lat=cs('lat'), 

lon=cs('lon'), 

elevation=cs('elevation'), 

depth=cs('depth', None), 

name=station['name']) 

nsl_stations[nsl].add_channel(model.Channel( 

channel['channel'], 

azimuth=channel['azimuth'], 

dip=channel['dip'])) 

return list(nsl_stations.values()) 

def cmp_version(a, b): 

ai = [int(x) for x in a.split('.')] 

bi = [int(x) for x in b.split('.')] 

return cmp(ai, bi) 

def dumb_parser(data): 

(in_ws, in_kw, in_str) = (1, 2, 3) 

state = in_ws 

rows = [] 

cols = [] 

accu = '' 

for c in data: 

if state == in_ws: 

if c == '"': 

new_state = in_str 

elif c not in (' ', '\t', '\n', '\r'): 

new_state = in_kw 

if state == in_kw: 

if c in (' ', '\t', '\n', '\r'): 

cols.append(accu) 

accu = '' 

if c in ('\n', '\r'): 

rows.append(cols) 

cols = [] 

new_state = in_ws 

if state == in_str: 

if c == '"': 

accu += c 

cols.append(accu[1:-1]) 

accu = '' 

if c in ('\n', '\r'): 

rows.append(cols) 

cols = [] 

new_state = in_ws 

state = new_state 

if state in (in_kw, in_str): 

accu += c 

if len(cols) != 0: 

rows.append(cols) 

return rows 

class Programs(object): 

rdseed = 'rdseed' 

avail = None 

@staticmethod 

def check(): 

if Programs.avail is not None: 

return Programs.avail 

else: 

try: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

except OSError as e: 

if e.errno == 2: 

reason = "Could not find executable: '%s'." \ 

% Programs.rdseed 

else: 

reason = str(e) 

logging.debug('Failed to run rdseed program. %s' % reason) 

Programs.avail = False 

return Programs.avail 

ms = [re.search( 

r'Release (\d+(\.\d+(\.\d+)?)?)', s.decode()) 

for s in (err, out)] 

ms = list(filter(bool, ms)) 

if not ms: 

logger.error('Cannot determine rdseed version number.') 

else: 

version = ms[0].group(1) 

if cmp_version('4.7.5', version) == 1 \ 

or cmp_version(version, '5.1') == 1: 

logger.warning( 

'Module pyrocko.rdseed has not been tested with ' 

'version %s of rdseed.' % version) 

Programs.avail = True 

return Programs.avail 

class SeedVolumeNotFound(Exception): 

pass 

class SeedVolumeAccess(eventdata.EventDataAccess): 

def __init__(self, seedvolume, datapile=None): 

'''Create new SEED Volume access object. 

:param seedvolume: filename of seed volume 

:param datapile: if not ``None``, this should be a 

:py:class:`pile.Pile` object with data traces which are then used 

instead of the data provided by the SEED volume. 

(This is useful for dataless SEED volumes.) 

''' 

eventdata.EventDataAccess.__init__(self, datapile=datapile) 

self.tempdir = None 

Programs.check() 

self.tempdir = None 

self.seedvolume = seedvolume 

if not os.path.isfile(self.seedvolume): 

raise SeedVolumeNotFound() 

self.tempdir = tempfile.mkdtemp("", "SeedVolumeAccess-") 

self.station_headers_file = os.path.join( 

self.tempdir, 'station_header_infos') 

self._unpack() 

self.shutil = shutil 

def __del__(self): 

if self.tempdir: 

self.shutil.rmtree(self.tempdir) 

def get_pile(self): 

if self._pile is None: 

fns = util.select_files([self.tempdir], regex=r'\.SAC$') 

self._pile = pile.Pile() 

self._pile.load_files(fns, fileformat='sac') 

return self._pile 

def get_resp_file(self, tr): 

respfile = pjoin(self.tempdir, 'RESP.%s.%s.%s.%s' % tr.nslc_id) 

if not os.path.exists(respfile): 

raise eventdata.NoRestitution( 

'no response information available for trace %s.%s.%s.%s' 

% tr.nslc_id) 

return respfile 

def get_stationxml(self): 

stations = self.get_pyrocko_stations() 

respfiles = [] 

for station in stations: 

for channel in station.get_channels(): 

nslc = station.nsl() + (channel.name,) 

respfile = pjoin(self.tempdir, 'RESP.%s.%s.%s.%s' % nslc) 

respfiles.append(respfile) 

from pyrocko.fdsn import resp 

sxml = resp.make_stationxml(stations, resp.iload(respfiles)) 

return sxml 

def get_restitution(self, tr, allowed_methods): 

if 'evalresp' in allowed_methods: 

respfile = pjoin(self.tempdir, 'RESP.%s.%s.%s.%s' % tr.nslc_id) 

if not os.path.exists(respfile): 

raise eventdata.NoRestitution( 

'no response information available for trace %s.%s.%s.%s' 

% tr.nslc_id) 

trans = trace.InverseEvalresp(respfile, tr) 

return trans 

else: 

raise eventdata.NoRestitution( 

'no response information available for trace %s.%s.%s.%s' 

% tr.nslc_id) 

def get_pyrocko_response(self, tr, target): 

'''Extract the frequency response as :py:class:`trace.EvalResp` 

instance for *tr*. 

:param tr: :py:class:`trace.Trace` instance 

''' 

respfile = self.get_resp_file(tr) 

return trace.Evalresp(respfile, tr, target) 

def _unpack(self): 

input_fn = self.seedvolume 

output_dir = self.tempdir 

def strerr(s): 

return '\n'.join(['rdseed: '+line.decode() 

for line in s.splitlines()]) 

try: 

# seismograms: 

if self._pile is None: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed, '-f', input_fn, '-d', '-z', '3', '-o', 

'1', '-p', '-R', '-q', output_dir], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

logging.info(strerr(err)) 

else: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed, '-f', input_fn, '-z', '3', '-p', '-R', 

'-q', output_dir], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

logging.info(strerr(err)) 

# event data: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed, '-f', input_fn, '-e', '-q', output_dir], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

logging.info(strerr(err)) 

# station summary information: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed, '-f', input_fn, '-S', '-q', output_dir], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

logging.info(strerr(err)) 

# station headers: 

rdseed_proc = subprocess.Popen( 

[Programs.rdseed, '-f', input_fn, '-s', '-q', output_dir], 

stdin=subprocess.PIPE, 

stdout=subprocess.PIPE, 

stderr=subprocess.PIPE) 

(out, err) = rdseed_proc.communicate() 

with open(self.station_headers_file, 'w') as fout: 

fout.write(out.decode()) 

logging.info(strerr(err)) 

except OSError as e: 

if e.errno == 2: 

reason = "Could not find executable: '%s'." % Programs.rdseed 

else: 

reason = str(e) 

logging.fatal('Failed to unpack SEED volume. %s' % reason) 

sys.exit(1) 

def _get_events_from_file(self): 

rdseed_event_file = os.path.join(self.tempdir, 'rdseed.events') 

if not os.path.isfile(rdseed_event_file): 

return [] 

with open(rdseed_event_file, 'r') as f: 

events = [] 

for line in f: 

toks = line.split(', ') 

if len(toks) == 9: 

datetime = toks[1].split('.')[0] 

format = '%Y/%m/%d %H:%M:%S' 

secs = util.to_time_float(calendar.timegm( 

time.strptime(datetime, format))) 

e = model.Event( 

lat=float(toks[2]), 

lon=float(toks[3]), 

depth=float(toks[4])*1000., 

magnitude=float(toks[8]), 

time=secs) 

events.append(e) 

else: 

raise Exception('Event description in unrecognized format') 

return events 

def _get_stations_from_file(self): 

stations = read_station_header_file(self.station_headers_file) 

return stations 

def _insert_channel_descriptions(self, stations): 

# this is done beforehand in this class 

pass 

def check_have_rdseed(): 

if not Programs.check(): 

raise ExternalProgramMissing( 

'rdseed is not installed or cannot be found')