/usr/lib/python2.7/dist-packages/owslib/swe/observation/waterml2.py is in python-owslib 0.16.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | # -*- coding: ISO-8859-15 -*-
# =============================================================================
# Copyright (c) 2014 Pete Taylor
#
# Authors : Pete Taylor <peterataylor@gmail.com>
#
# Contact email: peterataylor@gmail.com
# =============================================================================
from owslib.util import nspath_eval
from owslib.namespaces import Namespaces
from owslib.util import testXMLAttribute, testXMLValue
from owslib.swe.common import Quantity
from dateutil import parser
from owslib.swe.observation.om import OM_Observation, Result
def get_namespaces():
ns = Namespaces()
return ns.get_namespaces(["swe20", "xlink", "sos20", "om20", "gml32",
"xsi", "wml2"])
namespaces = get_namespaces()
def nspv(path):
return nspath_eval(path, namespaces)
class MeasurementTimeseriesObservation(OM_Observation):
''' A timeseries observation that has a measurement timeseries as
result. An implementation of the WaterML2
MeasurementTimeseriesObservation. '''
def __init__(self, element):
super(MeasurementTimeseriesObservation, self).__init__(element)
self._parse_result()
def _parse_result(self):
''' Parse the result element of the observation type '''
if self.result is not None:
result = self.result.find(nspv(
"wml2:MeasurementTimeseries"))
self.result = MeasurementTimeseries(result)
def get_result(self):
return self.result
class Timeseries(Result):
''' Generic time-series class '''
def __init__(self, element):
super(Timeseries, self).__init__(element)
class MeasurementTimeseries(Timeseries):
''' A WaterML2.0 timeseries of measurements, with per-value metadata. '''
def __init__(self, element):
super(MeasurementTimeseries, self).__init__(element)
self.defaultTVPMetadata = TVPMeasurementMetadata(element.find(
nspv("wml2:defaultPointMetadata/wml2:DefaultTVPMeasurementMetadata")))
elems = element.findall(nspv("wml2:point"))
self.points = []
for point in elems:
self.points.append(TimeValuePair(point))
def __iter__(self):
for point in self.points:
yield point
def __len__(self):
return len(self.points)
def _parse_metadata(self, element):
''' Parse metadata elements relating to timeseries:
TS: baseTime, spacing, commentBlock, parameter
MTS: startAnchor, endAnchor, cumulative, accAnchor/Length, maxGap
'''
pass
class TimeValuePair(object):
''' A time-value pair as specified by WaterML2.0
Currently no support for tvp metadata.
'''
def __init__(self, element):
date_str = testXMLValue(
element.find(nspv("wml2:MeasurementTVP/wml2:time")))
try:
self.datetime = parser.parse(date_str)
except:
raise ValueError("Error parsing datetime string: %s" % date_str)
value_str = testXMLValue(element.find(nspv(
"wml2:MeasurementTVP/wml2:value")))
try:
self.value = float(value_str)
except:
self.value = float('nan')
def __str__(self):
return str(self.datetime) + "," + str(self.value)
class TVPMetadata(object):
def __init__(self, element):
''' Base time-value pair metadata. Still to do:
- relatedObservation
'''
self.quality = testXMLAttribute(element.find(nspv(
"wml2:quality")), nspv("xlink:href"))
self.nilReason = testXMLAttribute(element.find(nspv(
"wml2:nilReason")), nspv("xlink:href"))
self.comment = testXMLValue(element.find(nspv(
"wml2:comment")))
self.qualifier = testXMLAttribute(element.find(nspv(
"wml2:qualifier")), nspv("xlink:href"))
self.processing = testXMLValue(element.find(nspv(
"wml2:processing")), nspv("xlink:href"))
self.source = testXMLValue(element.find(nspv(
"wml2:source")), nspv("xlink:href"))
class TVPMeasurementMetadata(TVPMetadata):
''' Measurement specific metadata. Still to do:
- aggregationDuration
'''
def __init__(self, element):
super(TVPMeasurementMetadata, self).__init__(element)
self.uom = testXMLAttribute(element.find(nspv(
"wml2:uom")), "code")
self.interpolationType = testXMLAttribute(element.find(nspv(
"wml2:interpolationType")), nspv("xlink:href"))
self.censoredReason = testXMLAttribute(element.find(nspv(
"wml2:censoredReason")), "xlink:href")
accuracy = testXMLValue(element.find(nspv("wml2:accuracy")))
if accuracy is not None:
self.accuracy = Quantity(element)
class MeasurementTimeseriesDomainRange(Timeseries):
''' Class to implement domain range timeseries encoding '''
def __init__(self, element):
super(MeasurementTimeseriesDomainRange, self, element).__init__()
class MonitoringPoint(object):
''' A WaterML2.0 Monitoring Point, which is a specialised O&M SamplingPoint
'''
def __init__(self, element):
pass
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