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wps_anomaly.py
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wps_anomaly.py
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from pywps.Process import WPSProcess
import icclim
import icclim.util.callback as callback
import dateutil.parser
from datetime import datetime
import os
from os.path import expanduser
from mkdir_p import *
transfer_limit_Mb = 100
class ProcessSimpleIndice(WPSProcess):
def __init__(self):
WPSProcess.__init__(self,
identifier = 'wps_anomaly', # only mandatary attribute = same file name
title = 'AnomalyCalculation',
abstract = 'Calculates an anomaly of a variable: average of a long period compared to a base reference period (e.g. 2071-2100 compared to 1971-2000 for example).',
version = "1.0",
storeSupported = True,
statusSupported = True,
grassLocation =False)
self.filesIn = self.addLiteralInput(identifier = 'files',
title = 'Input netCDF files list',
abstract="application/netcdf",
type=type("S"),
minOccurs=0,
maxOccurs=1024,
default = 'http://opendap.knmi.nl/knmi/thredds/dodsC/IS-ENES/TESTSETS/tasmax_day_EC-EARTH_rcp26_r8i1p1_20060101-20251231.nc,'+
'http://opendap.knmi.nl/knmi/thredds/dodsC/IS-ENES/TESTSETS/tasmax_day_EC-EARTH_rcp26_r8i1p1_20760101-21001231.nc')
self.varNameIn = self.addLiteralInput(identifier = 'varName',
title = 'Variable name to process',
type="String",
default = 'tasmax')
self.timeRangeIn = self.addLiteralInput(identifier = 'timeRange',
title = 'Time range, e.g. 2010-01-01/2012-12-31',
type="String",
default = None)
self.timeRangeRef = self.addLiteralInput(identifier = 'timeRangeRef',
title = 'Time range Reference Period, e.g. 2010-01-01/2012-12-31',
type="String",
default = None)
self.outputFileNameIn = self.addLiteralInput(identifier = 'outputFileName',
title = 'Name of output netCDF file',
type="String",
default = 'out_icclim.nc')
self.NLevelIn = self.addLiteralInput(identifier = 'NLevel',
title = 'Number of level (if 4D variable)',
type="String",
default = None)
self.opendapURL = self.addLiteralOutput(identifier = "opendapURL",title = "opendapURL");
def callback(self,message,percentage):
self.status.set("%s" % str(message),str(percentage));
def execute(self):
# Very important: This allows the NetCDF library to find the users credentials (X509 cert)
homedir = os.environ['HOME']
os.chdir(homedir)
def callback(b):
self.callback("Processing",b)
files = [];
files.extend(self.filesIn.getValue())
var = self.varNameIn.getValue()
time_range = self.timeRangeIn.getValue()
time_range_ref = self.timeRangeRef.getValue()
out_file_name = self.outputFileNameIn.getValue()
level = self.NLevelIn.getValue()
if(level == "None"):
level = None
if(time_range == "None"):
time_range = None
else:
startdate = dateutil.parser.parse(time_range.split("/")[0])
stopdate = dateutil.parser.parse(time_range.split("/")[1])
time_range = [startdate,stopdate]
startdate_ref = dateutil.parser.parse(time_range_ref.split("/")[0])
stopdate_ref = dateutil.parser.parse(time_range_ref.split("/")[1])
time_range_ref = [startdate_ref,stopdate_ref]
self.status.set("Preparing....", 0)
pathToAppendToOutputDirectory = "/WPS_"+self.identifier+"_" + datetime.now().strftime("%Y%m%dT%H%M%SZ")
""" URL output path """
fileOutURL = os.environ['POF_OUTPUT_URL'] + pathToAppendToOutputDirectory+"/"
""" Internal output path"""
fileOutPath = os.environ['POF_OUTPUT_PATH'] + pathToAppendToOutputDirectory +"/"
""" Create output directory """
mkdir_p(fileOutPath)
self.status.set("Processing input list: "+str(files),0)
my_indice_params = {'indice_name': 'ANOM',
'calc_operation': 'anomaly',
}
icclim.indice(user_indice=my_indice_params,
in_files=files,
var_name=var,
time_range=time_range,
out_file=fileOutPath+out_file_name,
threshold=None,
N_lev=level,
transfer_limit_Mbytes=transfer_limit_Mb,
callback=callback,
callback_percentage_start_value=0,
callback_percentage_total=100,
base_period_time_range=time_range_ref,
window_width=5,
only_leap_years=False,
ignore_Feb29th=True,
interpolation='hyndman_fan',
netcdf_version='NETCDF4_CLASSIC',
out_unit='days')
""" Set output """
url = fileOutURL+"/"+out_file_name;
self.opendapURL.setValue(url);
self.status.set("ready",100);