GetECMWFData.py

##Download ECMWF data=name
##Budyko=group
##ParameterFile|tmax_dst_folder|Select maximum temperature folder|True|False
##ParameterFile|tmin_dst_folder|Select minimum temperature folder|True|False
##ParameterString|start_date|Start date [yyyymmdd]. Must be after 19790101|20130101|False
##ParameterString|end_date|End date [yyyymmdd]. It is recomended that no more than 6 months of data is downloaded at a time.|20130601|False
##*ParameterExtent|subset_extent|Subset to download. Leave default value to download Africa dataset|-20,55,-40,40
##ParameterString|email|Email registered with ECMWF||False
##ParameterString|token|ECMWF token||False

import os
import sys
from datetime import datetime
from processing.core.GeoAlgorithmExecutionException import (
    GeoAlgorithmExecutionException,
)

if not os.path.dirname(scriptDescriptionFile) in sys.path:
    sys.path.append(os.path.dirname(scriptDescriptionFile))
import DownloadECMWFClimateData

[left_long, right_long, bottom_lat, top_lat] = [
    float(i) for i in subset_extent.split(",")
]

# Check coordinates
if (left_long >= right_long) or (bottom_lat >= top_lat):
    raise GeoAlgorithmExecutionException(
        'Error in coordinates: "Left :'
        + str(left_long)
        + "< Right: "
        + str(right_long)
        + ", Top :"
        + str(top_lat)
        + "> Bottom :"
        + str(bottom_lat)
        + '"'
    )

# Get dates
try:
    start_date = datetime.strptime(start_date, "%Y%m%d").date()
except ValueError:
    raise GeoAlgorithmExecutionException(
        'Error in data format: "' + start_date + '". Must be in YYYYMMDD.'
    )

try:
    end_date = datetime.strptime(end_date, "%Y%m%d").date()
except ValueError:
    raise GeoAlgorithmExecutionException(
        "Error in data format: " + end_date + '". Must be in YYYYMMDD.'
    )

if os.path.isdir(tmax_dst_folder) and os.path.isdir(tmin_dst_folder):
    # Download, extract and translate to GeoTIFF
    DownloadECMWFClimateData.ECMWFImport(
        email,
        token,
        start_date,
        end_date,
        tmax_dst_folder,
        tmin_dst_folder,
        left_long,
        right_long,
        top_lat,
        bottom_lat,
        progress,
    )
else:
    raise GeoAlgorithmExecutionException('No such directory: "' + dst_folder + '" ')